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HJ 2519-2012

Chinese Standard: 'HJ 2519-2012'
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HJ 2519-2012English469 Add to Cart Days<=3 Technical requirement for environmental labeling products. Cement Valid HJ 2519-2012
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Detail Information of HJ 2519-2012; HJ2519-2012
Description (Translated English): Technical requirement for environmental labeling products. Cement
Sector / Industry: Environmental Protection Industry Standard
Classification of Chinese Standard: Q11
Classification of International Standard: 91.100.10
Word Count Estimation: 18,194
Quoted Standard: GB 175-2007; GB 4915; GB 6566-2010; GB 16780; GB/T 176; GB/T 212; GB/T 213; GB/T 476; GB/T 4131-1997; GB/T 12960; GB/T 26281; HJ 467; JC/T 452
Drafting Organization: Ministry of Environmental Protection and Development Center
Regulation (derived from): Department of Environmental Protection Notice 2012 No. 38;
Summary: This standard specifies the cement environmental labeling product terms and definitions, basic requirements, technical contents and testing methods. This standard applies to new dry cement production technology common portland cement.


HJ 2519-2012
Technical requirement for environmental labeling products.Cement
National Environmental Protection Standard of the People's Republic
Environmental labeling product technical requirements cement
Technical requirement for environmental labeling products
Cement
Published on July 7,.2012
2012-10- 1 Implementation
Ministry of Environmental Protection released
Content
Foreword..2
1 Scope.3
2 Normative references.3
3 Terms and Definitions 3
4 basic requirements.5
5 Technical content.5
6 Inspection method.6
Appendix A (Normative Appendix) Calculation method for comparable CO2 emissions from cement clinker and cement products 7
Foreword
To implement the Environmental Protection Law of the People's Republic of China, reduce the production, use, packaging, transportation and disposal of cement.
This standard is developed for greenhouse gas emissions and for environmental and human health effects.
This standard puts a limit on the comparable carbon dioxide emissions and product radioactivity of cement clinker and cement products.
begging.
This standard is the first release.
This standard applies to China Environmental Labeling Product Certification and China Environmental Labeling Low Carbon Product Certification.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard is mainly drafted by. Environmental Development Center of the Ministry of Environmental Protection, China Building Materials Science Research Institute, China Cement Association
Hui, China Sinoma Group Co., Ltd., Tangshan Jidong Cement Co., Ltd., Anhui Conch Group Co., Ltd., Beijing Water
Mud Factory Co., Ltd. and Lafarge Shui On Cement Co., Ltd.
This standard was approved by the Ministry of Environmental Protection on July 3,.2012.
This standard has been implemented since October 1,.2012.
This standard is explained by the Ministry of Environmental Protection.
Environmental labeling product technical requirements cement
1 Scope of application
This standard specifies the terms and definitions, basic requirements, technical content and inspection methods of cement environmental labeling products.
This standard applies to the general Portland cement produced by the new dry process cement production process.
2 Normative references
The contents of this standard refer to the terms in the following documents. For undated references, the valid version applies to this standard.
GB 175-2007 General Portland Cement
GB 4915 Emission Standard for Air Pollutants in Cement Industry
GB 6566-2010 Radionuclide limited edition of building materials
GB 16780 cement unit product energy consumption limit
GB/T 176 cement chemical analysis method
Industrial analysis method of GB/T 212 coal
GB/T 213 coal calorific value measuring method
GB/T 476 Determination of carbon and hydrogen in coal
GB/T 4131-1997 Cement naming, definition and terminology
Quantitative determination of GB/T 12960 cement components
GB/T 26281 Cement rotary kiln heat balance, thermal efficiency, comprehensive energy consumption calculation method
HJ 467 Cleaner Production Standard Cement Industry
JC/T 452 general cement quality grade
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1 Cement cement
Mixing water into a plastic slurry, a powdery hydraulic cementing material capable of cementing suitable materials such as sand and stone and hardening in air and water.
(GB/T 4131-1997)
3.2 general Portland cement common portland cement
A hydraulic cementitious material made of Portland cement clinker and appropriate amount of gypsum and a specified mixed material. (GB 175-2007)
Including Portland cement, Portland cement, slag Portland cement, pozzolan Portland cement, fly ash Portland cement and
Composite Portland cement.
3.3 New dry cement production process
The pre-decomposition kiln is the core of the firing process, combined with high-efficiency grinding technology and automatic control technology integrated cement production process.
3.4 mine repair quarry rehabilitation
In view of the characteristics and damage caused by the formation of abandoned land in mining, cover the subsoil, land consolidation, soil improvement, water supply and drainage
Engineering, slope protection engineering, vegetation restoration, etc., to carry out mine ecological restoration.
3.5 alternative raw materials
A waste with suitable chemical composition that can replace some natural ore raw materials in cement production.
3.6 Alternative fuels alternative fuels
With a certain calorific value, after simple processing (such as. crushing), it can replace traditional fossil fuel in cement production for direct combustion.
Waste.
3.7 unit comparable carbon dioxide (CO2) emissions comparable specific CO2 emission
During the statistical period, based on the cement production line altitude and cement strength grade, the CO2 emissions from cement clinker or cement products are
A comparable value obtained after the correction.
3.8 direct carbon dioxide (CO2) emissions direct CO2 emission
Decomposition of carbonate minerals from cement production and CO2 emissions from combustion of various fossil fuels. The corresponding source of CO2 emissions is cement.
The production company owns or controls.
3.9 Indirect carbon dioxide (CO2) emissions indirect CO2 emission
CO2 emissions from cement production of purchased electricity, purchased cement clinker, etc., and corresponding CO2 emission sources are owned or controlled by other enterprises.
system.
3.10 co-processing waste waste co-processing
Waste or pretreated waste is sent to a cement kiln for incineration to achieve decontamination and comprehensive utilization of waste.
3.11 internal exposure index
The ratio of the radioactivity specific activity of the natural radionuclide radium-226 in cement to the limit values specified in this standard.
The expression is.
Ra
aR
CI =
Where. aRI ─ internal exposure index;
aRC ─ the specific activity of the natural radionuclide radium-226 in cement, Bq·kg-1;
200 ─ Only considering the internal exposure, the radioactive specific activity limit of the radionuclide ra-226 in the cement specified in this standard
Quantity, Bq·kg-1.
3.12 external exposure index
The specific radioactivity of the natural radionuclides Ra-226, 钍-232 and K-40 in cement is the same as that of the respective radioactive nuclides
The sum of the ratios of the quasi-specified limits.
The expression is.
4200260370
KThRa CCCI = γ
Where. rI - external exposure index;
RaC, ThC, KC ─ ─ are the radioactive ratio of natural radionuclide radium-226, 钍-232, potassium-40 in cement
Activity, Bq·kg-1;
370, 260, 4200 ─ respectively, the natural radionuclide in the cement specified in this standard is considered only for external exposure.
The limits specified by this standard for radium-226, cesium-232 and potassium-40, respectively, are Bq·kg-1.
3.13 radioactivity specific activity
The ratio of the radioactivity of a species in a substance to the mass of that substance. (GB 6566-2010)
The expression is.
AC =
Where. C ─ specific activity of radioactivity, Bq·kg-1;
A ── radionuclide activity, Bq;
m ── the mass of the substance, kg.
4 basic requirements
4.1 Product quality should meet the requirements of relevant standards and the superior requirements specified in JC/T 452.
4.2 The energy consumption per unit of product should meet the requirements of GB 16780.
4.3 The bulk rate of the product shall comply with the provisions of the national or local regulations on the management of bulk cement.
4.4 Pollutant emissions from product manufacturing enterprises should comply with national or local pollutant discharge standards.
4.5 Product manufacturers should strengthen clean production, and the production process should meet the requirements of HJ 467.
4.6 The product manufacturer shall have its own limestone mine, which has a complete restoration plan for the mine and repairs the mine as planned.
Ensure that the mine repair rate after mining is 100%.
4.7 The production of products should use alternative raw materials and alternative fuels to improve the recycling rate of resources and energy.
5 Technical content
5.1 Comparable CO2 emission limit requirements for cement clinker and cement products
5.1.1 The comparable C02 emissions of cement clinker units shall not exceed 880 kg/t.
5.1.2 The comparable CO2 emission limit for cement products should meet the requirements of Table 1.
Table 1 Comparable CO2 emission limits for cement products
Variety strength level unit comparable to CO2 emission limit (kg/t)
Portland cement
42.5(R) ≤785
52.5(R) ≤795
62.5(R) ≤ 840
Ordinary Portland cement 42.5(R) ≤665
52.5(R) ≤755
Slag Portland cement
32.5(R) ≤240
42.5(R) ≤410
52.5(R) ≤665
Volcanic ash Portland cement
Fly ash Portland cement
32.5(R) ≤485
42.5(R) ≤580
52.5(R) ≤665
Composite Portland cement 32.5(R) ≤460
42.5(R) ≤580
52.5(R) ≤665
5.2 The internal exposure index of cement products shall not exceed 0.8, and the external exposure index shall not exceed 0.8 (IRa≤0.8 and Iγ≤0.8).
6 Test methods
6.1 Requirements of Technical Content 5.1 The data shall be collected by means of on-site inspection and document review, and calculated according to the method specified in Appendix A.
The calculation items of CO2 emissions from cement clinker during the statistical period include.
1 direct CO2 emissions from the decomposition of carbonate minerals in raw meal;
2 clinker production process Note 1 direct CO2 emissions from physical coal combustion;
3 clinker production process Note 1 Indirect CO2 emissions from electricity consumption;
4 Indirect CO2 emission reductions generated by waste heat power generation;
5 The direct CO2 emission reduction corresponding to the waste heat utilization of the co-processing waste.
Note 1. The clinker production process includes raw material preparation, clinker calcination, waste heat power generation and co-processing waste processes.
6.2 The requirements of Technical Content 5.2 shall be tested according to the method specified in GB 6566-2010.
Appendix A
(normative appendix)
Calculation method for comparable CO2 emissions of cement clinker and cement products
A.1 Scope
This appendix specifies the terms and definitions, operating boundaries and statistical periods, calculation items, and calculations for the calculation method of CO2 emissions from cement production.
Calculate data and calculate the comparable CO2 emissions per unit of cement clinker and cement products. Calculation of CO2 Emissions from Cement Grinding Station
Can refer to the implementation.
This appendix applies to the calculation of CO2 emissions from general Portland cement clinker and cement products, and other varieties of cement clinker and cement.
The calculation of CO2 emissions can be referred to.
A.2 Terms and definitions
The following terms and definitions apply to this appendix.
A.2.1 Carbon dioxide (CO2) emission source CO2 source
Cement produces a device or process that emits CO2 into the atmosphere.
A.2.2 Other direct carbon dioxide (CO2) emissions other direct CO2 emission
CO2 emissions from the combustion of non-fuel carbon and alternative fuels from cement production, thermal energy consumption from co-processing wastes, and waste heat utilization outside the boundary
Corresponding CO2 emissions, the corresponding CO2 emission sources are owned or controlled by cement producers.
A.2.3 emission factor emission factor
CO2 emissions from unit energy consumption and unit raw material consumption.
A.2.4 Biomass fuel
A fuel derived from various biomass (animal or plant).
A.2.5 non-fuel carbon combubible carbon not included in fuel
Combustible carbon contained in raw materials and co-processing waste.
A.3 Operational boundaries and statistical periods
A.3.1 Operational boundaries
The operating boundary, ie the production boundary and the calculation range, set by the enterprise when calculating the CO2 emissions. Cement production process
It is divided into seven calculation units, and the specific calculation range is as follows.
1) Mining and auxiliary facilities. from raw material mining, crushing and belt transportation or vehicle transportation, to the integration of raw materials into the production plant area
Mining process;
2) Raw material preparation. from the raw materials into the production plant area, through the crushing, grinding, transportation, to the raw material into the kiln of the entire raw material preparation
Artistic process
3) Clinker calcination. the whole clinker calcination process from the raw material into the kiln, to the clinker entering the clinker storage (including the top dust collection equipment)
Process, including pulverized coal preparation system;
4) Cement preparation. from the clinker out of the warehouse (including the bottom of the equipment), adding cement mixed materials, gypsum, etc.
Into the cement store, to the entire cement preparation process for packaging and shipping, including mixed materials, gypsum transportation, and preparation systems;
5) Auxiliary production and management. production control, quality management and administrative office.
6) Waste heat power generation. the power generation and transportation process from the kiln exhaust gas to the power generation that can be sent to the internal power grid;
7) Co-disposal of waste. from the waste into the production plant, to the entire process of waste into the kiln incineration treatment.
The operating boundary of the cement grinding station includes. from clinker, mixed materials, gypsum, etc. into the cement grinding station production plant area, through cement milling
After grinding, enter the cement store and ship to the package.
A.3.2 Statistical period
The calculation of CO2 emissions from cement production is based on the annual statistical period. It is also possible to calculate the CO2 emissions for a period of time based on demand statistics, but
Instructions should be given.
A.4 Calculating projects and calculating data
A.4.1 Calculation project
See Table A.1 for the calculation of CO2 emissions from various processes and co-processing wastes in cement production. According to the actual production process
The calculation project is increased or decreased, but it should be explained in the calculation report.
Table A.1 Calculation Project of CO2 Emissions from Cement Production
Calculate the formula for calculating the CO2 emission code of the project
Raw material carbonate mineral decomposition
Non-fuel carbon combustion in raw meal
Production process and co-processing waste physical coal combustion
Clinker calcination process instead of fuel combustion
Co-processing waste non-fuel carbon combustion
Various production processes and co-processing waste fuel combustion
Wastewater consumption in various production processes and co-processing waste
Kiln waste heat utilization
Outsourcing cement clinker
Purchased finely mixed materials
Prc
Pro
Pbci
Pα, Pβ
Pγ, Pδ
Poil
Pei
Pg, Per, Pc
Pp
Ps
(A.1), (A.2), (A.3), (A.4), (A.5), (A.6)
(A.7)
(A.8), (A.9)
(A.10), (A.11)
(A.12), (A.13)
(A.14)
(A.15)
(A.16), (A.17), (A.18)
(A.19)
(A.20)
A.4.2 Calculating data
A.4.2.1 The calculation of CO2 emissions from cement production should be based on the actual statistical data of the production enterprise, the actual test data and the defaults given in this appendix.
Recognized value.
A.4.2.2 Actual statistics
Actual statistics include cement clinker production, total cement output, and various cement grades of various strength grades; various physical coal consumption
Quantity, various fuel consumption, various alternative fuel consumption, various amounts of co-processing waste; power consumption, net waste heat generation (remaining)
The amount of thermal power generation minus the self-consumption of the generator set); the amount of cement clinker purchased, the amount of purchased finely mixed materials. Actual statistics also include statistics
The weighted average of the following data during the period. 28 days compressive strength of cement clinker, the amount of clinker in each cement grade of each strength grade, strong
The actual 28-day compressive strength of each cement grade of the grade; the material consumption ratio, the dust discharge of the kiln exhaust kiln (kiln head), the kiln bypass
The amount of dust and the loss of dust.
A.4.2.3 Actual test data
The actual test items, test methods, frequency of inspection and requirements are shown in Table A.2.
Table A.2 Detection methods, frequency and requirements of actual test data
Serial number detection item detection method detection frequency requirement
Clinker calcium oxide and
Magnesium oxide mass fraction
GB/T 176 Daily detection of daily test data for weighted monthly average, weighted annual average calculation
2 CO2 mass fraction in raw meal GB/T 12960 is tested once a month
Monthly test data for weighted annual average calculation; raw materials or
When there is a change in the ratio of raw meal, it should be tested immediately and increased.
Frequency measurement, then weighted average calculation
3 Raw material burn-off GB/T 176 Daily test once daily test data for weighted monthly average, weighted annual average calculation
Kiln exhaust pipe
(kiln head) dust
Emissions
GB/T 4915 is tested every six months or with default values
The semi-annual test data is weighted and averaged;
The situation has changed, it should be tested immediately and the detection frequency increased.
Weighted average calculation
5 kiln bypass wind dust emission loss GB/T 176 tested every six months
The semi-annual test data is weighted and averaged;
The situation has changed, it should be tested immediately and the detection frequency increased.
Weighted average calculation
6 Mass fraction of carbon in coal GB/T 476
Coal into the factory for each batch inspection
Test once
Weighted monthly average, weighted annual average for each batch of test data
Calculation
7 Low calorific value of coal GB/T 212, GB/T 213
Coal into the factory for each batch inspection
Test once
Weighted monthly average, weighted annual average for each batch of test data
Calculation
Outside the operating boundary
Heat utilization
And temperature
GB/T 26281 is tested every six months
The semi-annual test data is weighted and averaged;
The situation has changed, it should be tested immediately and the detection frequency increased.
Weighted average calculation
A.4.2.4 Default value
Other relevant data related to the calculation of CO2 emissions from cement production can be directly quoted from the default values given in this appendix.
A.5 Calculation of CO2 emissions
A.5.1 Unit CO2 emissions from the decomposition of raw material carbonate minerals
The unit CO2 emissions from the decomposition of raw carbonate minerals include the decomposition of raw carbonate minerals and the kiln exhaust (kiln head) powder.
Units of CO2 emissions from the decomposition of carbonate minerals from dust and bypass wind dust. It should be calculated according to formula A.1.
1 2 3rcP RRR= (A.1)
Where. Prc--production unit clinker, total CO2 emissions from decomposition of raw carbonate minerals, kg/t.
R1--Production unit clinker, CO2 emissions from decomposition of raw material carbonate minerals, kg/t;
R2--CO2 emissions from the decomposition of some carbonate minerals in the production unit clinker, kiln exhaust pipe (kiln head),
Kg/t;
R3--Production unit clinker, CO2 emissions from decomposition of some carbonate minerals in kiln bypass blasting dust, kg/t.
A.5.1.1 Unit CO2 emissions from decomposition of raw carbonate minerals
The unit CO2 emissions from the decomposition of raw carbonate minerals are calculated in the following two cases.
(1) If alternative raw materials (including carbide slag, steel slag, etc.) are not used, R1 should be calculated according to formula A.2.
M1
⋅⋅ ⋅ = CCR C
(A.2)
Where. Cc--the mass fraction of CaO in clinker, %;
Cm-- mass fraction of MgO in clinker, %;
-- molecular weight conversion between CO2 and CaO;
-- Molecular weight conversion between CO2 and MgO.
(2) If alternative raw materials (including carbide slag, steel slag, etc.) are used, R1 should be calculated according to formula A.3.
Cc
c FL
RR ⋅−⋅= )1(
1 (A.3)
Where. Rc--CO2 mass fraction in cement raw meal, %;
Lc - raw material loss on ignition, %;
Fc - clinker conversion factor for coal ash in clinker, with a value of 1.04.
A.5.1.2 Unit CO2 emissions from the decomposition of some carbonate minerals in the dust of the kiln exhaust kiln (kiln head)
It should be calculated according to formula A.4.
1 e
URR
⋅ = (A.4)
Where. Ue--Dust emissions from flue gas emitted from the kiln exhaust pipe (kiln head), kg/t; if the monitoring data is missing, the value is 0.15
Kg/t.
A.5.1.3 Unit CO2 emissions from some carbonate minerals in kiln bypass blasting dust
It should be calculated according to formula A.5.
eQ BR
⋅ = (A.5)
Where. Qd--the amount of dust in the production unit clinker kiln bypass, kg/t;
Be--Blowing dust CO2 emission factor, kg/t; should be calculated according to formula A.6.
⎟⎟⎠
⎜⎜⎝
⎛ −⋅=
RRB
e 11
(A.6)
In the formula. Rb--bypass wind dust emission loss, %.
A.5.2 Unit CO2 emissions from non-fuel carbon combustion in raw meal
It should be calculated according to formula A.7.
44 ⋅⋅⋅= oa RrPro (A.7)
Where. Pro--production unit clinker, CO2 emissions from non-fuel carbon combustion in raw meal, kg/t;
Ra--consumption ratio, if the measurement data is missing, the value is 1.52;
Ro--non-fuel carbon mass fraction in raw material, %; 0.1% to 0.3% (dry basis) if no measurement data is used, raw material is coal
Take high values when mixing vermiculite, high carbon fly ash, etc., otherwise take a low value;
-- Molecular weight conversion between CO2 and C.
A.5.3 Production process and co-processing of CO2 emissions from physical coal combustion
The CO2 emissions from the production process and co-processing waste physical coal combustion are calculated in the following two cases.
(1) If there is a measured value of the mass fraction of carbon in the physical coal, it shall be calculated according to formula A.8.
CSP hibci ⋅⋅= 12
44 (A.8)
Where. Pbci--the statistical process, the CO2 emissions from the production process and the co-processing waste physical coal combustion, t;
Si--the statistical process, the amount of physical coal used in the production process and co-processing waste, t;
Ch--weighted average of the mass fraction of carbon in the physical coal of different incoming batches during the statistical period, %;
i -- indicates each production process and co-processing waste, where i is 1 for mining and ancillary facilities, i is 2
Indicates the raw meal preparation unit, i is 3 for clinker calcining unit, i is 4 for cement preparation unit, and i is 5 for auxiliary production and management
Unit, i is 6 for the waste heat power unit, and i is 7 for the co-processing waste unit.
(2) If the mass fraction of carbon in the physical coal is missing, it shall be calculated according to formula A.9.
SP bncibci ⋅⋅= 307.29
(A.9)
Where. Qnc - during the statistical period, the weighted average low calorific value of the physical coal of different incoming batches, MJ/kg;
Fb - standard coal CO2 emission factor, t/t, standard coal CO2 emission factor value is determined by national uniform regulations, the current value is
2.75t/t;
29.307 -- Standard coal calorific value, MJ/kg.
A.5.4 Clinker emissions from alternative fuel combustion processes in the clinker calcination process
Alternative fuels contain carbon derived from fossil fuels and carbon derived from biomass, and should be calculated according to formula A.10 and formula A.11, respectively.
The calcination process replaces the CO2 emissions from fuel combustion.
∑ ⋅⋅⋅ = jajnajj FQAP αα (A.10)
∑ ⋅⋅⋅ = jajnajj FQAP ββ (A.11)
Where. Pα - during the statistical period, the alternative fuel from each production process is derived from the CO2 emissions from the combustion of carbon in fossil fuels, t;
Pβ -- During the statistical period, each production process replaces the CO2 emissions from the combustion of carbon from biomass, t;
Aj - the amount of various alternative fuels during the statistical period, t;
Qnaj--weighted average low calorific value of various alternative fuels, MJ/kg, the specific data is shown in Table A.3;
Faj--the CO2 emission factor for alternative fuel combustion, kg/MJ, the specific data is shown in Table A.3;
jj--The alternative fuel is derived from the mass fraction of carbon in fossil fuels, %, as shown in Table A.3;
Jj--the mass fraction of carbon derived from biomass in biomass, %, as shown in Table A.3;
j -- indicates the type of alternative fuel.
Table A.3 Low calorific value and CO2 emission factors for some alternative fuels
Alternative fuel type low calorific value (MJ/kg)
CO2 emission factor
(kg/MJ)
Fossil carbon mass fraction
(%)
Biomass mass fraction
(%)
Waste oil 40.2 0.074 100 0
Waste tires 31.4 0.085 20 80
Plastic 50.8 0.075 100 0
Waste solvent 51.5 0.074 80 20
Waste leather 29.0 0.11 20 80
Waste glass steel 32.6 0.083 100 0
A.5.5 CO2 emissions from non-fuel carbon combustion in co-processing waste
Co-processing wastes containing non-fuel carbon derived from fossil fuels and non-fuel carbon derived from biomass shall be in accordance with Equation A.12 and
Equation A.13 calculates CO2 emissions from fossil fuel-derived non-fuel carbon and biomass-derived non-fuel carbon combustion.
Γγ kkWP ⋅⋅⋅= ∑ FQ wknwk (A.12)
kkWP δδ ⋅⋅⋅=∑ FQ wknwk (A.13)
Where. Pγ--the CO2 emissions from the combustion of non-fuel carbon derived from fossil fuels in the co-processing waste, t;
Pδ--the CO2 emissions from the combustion of biomass-derived non-fuel carbon in the waste during the statistical period, t;
Wk--the amount of various co-processing wastes during the statistical period, t;
Qnwk -- weighted average low calorific value of various co-processing wastes, MJ/kg, see Table A.4 for specific data;
Fwk -- CO2 emission factor for co-processing waste combustion, kg/MJ, the specific data is shown in Table A.4;
Γk--the mass fraction of non-fuel carbon derived from fossil fuels in various co-processing wastes, %, as shown in Table A.4;
Δk--the mass fraction of non-fuel carbon derived from biomass in various co-processing wastes, %, the specific data is shown in Table A.4;
k -- indicates the type of co-processing waste.
Table A.4 Low calorific value and CO2 emission factors for some wastes (dry basis)
Waste type low calorific value (MJ/kg) CO2 emission factor (kg/MJ) Fossil carbon mass fraction (%)
Biomass mass fraction
(%)
Impregnated wood chips 15.6 0.075 0 100
Drying sludge 11.6 0.11 0 100
Wood and wood waste 15.6 0.11 0 100
Agricultural, organic, fabric waste 11.6 0.11 0 100
Domestic garbage sieves 11.6 0.10 0 100
A.5.6 Production process and co-processing of CO2 emissions from waste fuel combustion
It should be calculated according to formula A.14.
∑ ⋅⋅= olnoliloil FQOP (A.14)
In the formula. Poil - during the statistical period, each production process (including vehicle transportation, kiln start ignition) and co-processing waste fuel burning
CO2 emissions produced by burning t;
Oil - During the statistical period, the amount of fuel used in each production process and co-processing waste, t, should be differentiated from fossil fuel and raw
Material fuel consumption, and statistical calculations;
Qnol -- low calorific value of various fuels, MJ/kg, the specific data is shown in Table A.5;
Fol -- CO2 emission factor for various fuel combustion, kg/MJ, the specific data is shown in Table A.5;
L-- indicates different types of fuel.
Table A.5 Low calorific value and CO2 emission factors for some energy sources
Energy type low calorific value (MJ/kg) CO2 emission factor (kg/MJ)
Crude oil 42.3 0.0733
Fuel oil 42.3 0.0733
Gasoline 44.3 0.0700
Kerosene 43.8 0.0719
Diesel 43.0 0.0741
Coal tar 28.0 0.0807
A.5.7 CO2 emissions corresponding to the production process and co-processing waste power consumption
It should be calculated according to formula A.15.
FEP eiei
⋅= (A.15)
In the formula. Pei--the CO2 emission corresponding to the power consumption of each production process and co-processing waste, t;
Ei--In the statistical period, the power consumption of each production process and co-processing waste, kW·h;
Fe--electrical CO2 emission factor, kg/kW·h; the value of electric power CO2 emission factor is determined by national uniform regulations, and the current value is
0.86kg/kW·h;
A.5.8 Corresponding CO2 emissions from kiln exhaust heat utilization
The waste heat utilization of the kiln exhaust gas includes waste heat utilization outside the operation boundary, waste heat power generation, and co-processing waste waste heat utilization.
(1) Corresponding CO2 emissions from waste heat utilization outside the operational boundary
It should be calculated according to formula A.16.
CTGFP bg ⋅⋅⋅×= 1000307.29
(A.16)
Where. Pg - kiln waste heat is used for the corresponding CO2 emissions outside the operating boundary, t;
G - the amount of exhaust gas used for the utilization of waste heat outside the boundary during the statistical period, Nm3;
T--the statistically-weighted average temperature used to operate the waste heat outside the boundary during the statistical period, °C;
C--exhaust gas specific heat, kJ/Nm3·°C; the value is 1.42 kJ/Nm3·°C.
(2) CO2 emissions corresponding to waste heat power generation
It should be calculated according to formula (A.17).
FEP erer
⋅=
(A.17)
Where. Per--the statistical period, the CO2 emissions corresponding to waste heat power generation, t;
Er -- The net amount of waste heat generated during the statistical period, kW·h.
(3) Corresponding CO2 emissions from co-processing waste drying and waste heat utilization
It should be calculated according to formula A.18.
Φ kkbc WFP ⋅∑⋅⋅= 307.29
45.2 (A.18)
Where. Pc - co-processing waste drying corresponding to CO2 emissions, t;
Фk -- the mass fraction of moisture in various co-processing wastes, %;
2.45--The heat of vaporization of water at a temperature of 20 ° C, MJ/kg.
A.5.9 Corresponding CO2 emissions from purchased cement clinker and purchased ground mixed materials
(1) Corresponding CO2 emissions from purchased cement clinker
It should be calculated according to formula A.19.
FKP pcp
⋅= (A.19)
Where. Pp -- the CO2 emissions corresponding to the cement clinker purchased by the enterprise during the statistical period, t;
Kc -- the amount of cement clinker purchased by the enterprise during the statistical period, t;
Fp--the unit of comparable cement clinker can be compared with the CO2 emission factor, kg/t; if the actual statistical value is missing, the value can be 940 kg/t.
(2) CO2 emissions corresponding to purchased ground mixed materials
It should be calculated according to formula A.20.
FK
Ss
⋅= (A.20)
Where. Ps - during the statistical period, the CO2 emissions corresponding to the company's purchased finely mixed materials, t;
Ks--the amount of finely mixed materials purchased by the enterprise during the statistical period, t;
Fs--CO2 emission factor of purchased mixture of finely mixed materials, kg/t; if the actual statistical value is missing, the value is 50 kg/t.
A.5.10 The CO2 emissions from cement production shall be classified according to Table A.6, and the comparable CO2 emissions shall be calculated in accordance with A.5.11.
Table A.6 Statistical calculation of CO2 emissions from cement production
Calculation
unit
Production process
Calculation project
direct
CO2
emission
Other direct
CO2 emissions
Indirect CO2
emission
Biomass energy
CO2 emissions
Unit can
Than CO2
Emissions
1 Mining and auxiliary facilities
Production process
energy burn
Fossil fuel + +
Biomass fuel +
Production process power consumption + +
2 raw material preparation
Production process physical coal consumption + +
Vehicle transportation, etc.
Oil consumption
Fossil fuel + +
Biomass fuel +
Production process power consumption + +
3 clinker calcination
Raw material carbonate mineral decomposition + +
Non-fuel carbon burning in raw meal +
Production process physical coal consumption + +
Production process
Alternative fuel consumption
Fossil fuel carbon +
Biomass carbon +
Production process
energy burn
Fossil fuel + +
Biomass fuel +
Production process power consumption + +
4 Cement preparation production process physical coal consumption + + production process fossil fuel + +
Fuel consumption biomass fuel +
Production process power consumption + +
Clinker + +
Purchased ground mixed material + +
Auxiliary production and
management
Production process
Fuel consumption
Fossil fuel + +
Biomass fuel +
Production process power consumption + +
use of excess heat
External heat utilization outside the boundary - + -
Net waste heat power generation - -
Co-processing waste waste heat utilization - + -
Cooperative disposal
waste
Co-processing waste physical coal consumption +
Co-processing waste
Non-fuel carbon combustion
Fossil fuel carbon +
Biomass carbon +
Co-processing waste
Oil consumption
Fossil fuel +
Biomass fuel +
Co-processing waste power consumption +
+--Statistically calculate the items that should be included in the calculation, --- statistically calculate the items that should be deducted from the total amount, -- items that are not statistically calculated.
A.5.11 Units comparable to CO2 emissions from cement clinker and cement products
(1) Units of cement clinker comparable to CO2 emissions
It should be calculated according to formula A.21.
KQ
TC ck
Ck
Ck
Ck ⋅⋅= 1000 (A.21)
Where. Cck--the statistical ratio of CO2 emissions per unit of cement clinker, kg/t;
Tck - Direct CO2 emissions and indirect CO2 emissions in calculation units other than Compute Unit 4 in Table A.6 during the statistical period
The sum of the volume (excluding the indirect CO2 emissions corresponding to the co-processing waste power consumption), t;
Qck--the production period of cement clinker during the statistical period, t;
Kck--The correction factor for the comparable CO2 emissions of cement clinker units during the statistical period should be calculated according to formula A.22.
pK H
Ck
Ck
s 0
5.52 ⋅ = (A.22)
In the formula.
Sck -- the average compressive strength of cement clinker for 28 days, MPa;
PH - cement enterprise ambient atmospheric pressure, Pa; When the cement enterprise has an altitude of more than 1000 meters, take the environmental pressure of the production enterprise,
Otherwise take the sea level environment atmospheric pressure;
P0 -- sea level ambient atmospheric pressure, with a value of 101325 Pa;
52.5 -- Cement clinker 28 days contrast strength, MPa.
(2) Units comparable to CO2 emissions for each cement grade at each strength level
It should be calculated according to formula A.23.
[ ] KFFeKQ
FKCQC cemssmemckm
Cck
Pcckck
Cem ⋅⋅⋅ ⋅
⋅ ⋅ = δδ (A.23)
Where. Ccem--in the statistical period, the unit of each cement product can be compared with CO2 emissions, kg/t;
Δckm--the amount of clinker in a cement grade of a certain strength grade during the statistical period, %;
Em -- During the statistical period, the power consumption of a cement grade unit of a certain strength level is kW·h/t; if statistical data is missing,
The slag Portland cement may have a value of 55 kW·h/t, and other general Portland cements may have a value of 45 kW·h/t.
Δsm -- the content of purchased ground mixed material in a certain cement grade of a certain strength grade, %;
Kcem--The correction factor for the comparable CO2 emissions of cement products during the statistical period should be calculated according to formula A.24.
SK
Cem
Cem = (A.24)
Where. Sq--factory strength grade of cement products, MPa;
Scem--the average 28-day compressive strength of a cement grade at a certain strength level during the statistical period, MPa.
m -- represents each cement product of a certain cement grade of a certain strength grade.
   
 
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