HJ 2026-2013_English: PDF (HJ2026-2013)
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Technical specifications of adsorption method for industrial organic emissions treatment project
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HJ 2026-2013
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| Standard ID | HJ 2026-2013 (HJ2026-2013) | | Description (Translated English) | Technical specifications of adsorption method for industrial organic emissions treatment project | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | Z25 | | Classification of International Standard | 13.040.40 | | Word Count Estimation | 16,126 | | Quoted Standard | GB 3836.4; GB/T 3923.1; GB/T 7701.1; GB 12348; GB/T 16157; GB/T 20449; GB 50016; GB 50019; GB 50051; GB 50057; GB 50058; GB 50140; GB 50160; GB 50187; GBJ 87; HGJ 229; HJ/T 1; HJ/T 386; HJ/T 387; HJ/T 389; HJ 2000; HJ 2027; JJF 1049; " construction Projec | | Drafting Organization | China Environmental Protection Industry Association | | Administrative Organization | ?Ministry of Environmental Protection | | Regulation (derived from) | ?Ministry of Environmental Protection Announcement 2013 No. 18 | | Summary | This standard specifies the industrial organic waste gas adsorption treatment project design, construction, technical requirements for acceptance and operation. This standard applies to atmospheric absorption of industrial organic waste treatment project, |
HJ 2026-2013
Technical specifications of adsorption method for industrial organic emissions treatment project
National Environmental Protection Standard of the People's Republic
Adsorption method industrial organic waste gas treatment engineering technical specification
Technical specifications of adsorption method for industrial organic emissions
Treatment project
2013– 3 –29 release
2013- 7 -1 Implementation
Ministry of Environmental Protection released
Content
Preface II
1 Scope 1
2 Normative references 1
3 Terms and definitions. 2
4 Contaminants and pollution loads.3
5 General requirements 4
6 Process Design 4
7 main process equipment..8
8 Detection and Process Control 8
9 Major auxiliary projects..8
10 Engineering Construction and Acceptance..9
11 Operation and maintenance 9
Appendix A (informative appendix) typical organic waste gas adsorption process flow chart.11
Foreword
Standardize industrial organic waste gas for the implementation of the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China
The construction of the treatment project, prevention and control of industrial organic waste gas pollution, improvement of environmental quality, the development of this standard.
This standard specifies the technical requirements for the design, construction, acceptance and operation of industrial organic waste gas adsorption treatment engineering.
This standard is a guidance document.
This standard is the first release.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard is mainly drafted by. China Environmental Protection Industry Association, Chinese People's Liberation Army Institute of Chemical Defense, Chinese Academy of Sciences, Ecological Environment
Research Center, China Energy Saving Tianchen (Beijing) Environmental Protection Technology Co., Ltd., Ningxia Huahui Activated Carbon Co., Ltd., Beijing Lvhuang Environmental Protection Equipment
Co., Ltd., Jiangsu Sutong Carbon Fiber Co., Ltd., Jiayuan Environmental Protection Co., Ltd., Quanzhou Tianlong Environmental Engineering Co., Ltd.
This standard was approved by the Ministry of Environmental Protection on March 29,.2013.
This standard has been implemented since July 1,.2013.
This standard is explained by the Ministry of Environmental Protection.
Adsorption method industrial organic waste gas treatment engineering technical specification
1 Scope of application
This standard specifies the technical requirements for the design, construction, acceptance and operation of industrial organic waste gas adsorption treatment engineering.
This standard is applicable to the atmospheric pressure adsorption treatment of industrial organic waste gas, and can be used as environmental impact assessment, engineering consulting, design, construction,
The technical basis for operation and management after acceptance and completion.
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 3836.4 Electrical equipment for explosive atmospheres - Part 4. Intrinsically safe "i"
Textile fabrics - Tensile properties - Part 1. Determination of breaking strength and elongation at break
GB/T 7701.2 recovery of solvent coal granular activated carbon
GB/T 7701.5 Purified air coal granular activated carbon
GB 12348 industrial enterprise boundary noise standard
GB/T 16157 Determination of particulate matter in fixed pollution source exhaust gas and sampling method of gaseous pollutants
GB/T 20449 Activated carbon butane working capacity test method
GB 50016 Building Design Fire Code
GB 50019 Heating, Ventilation and Air Conditioning Design Code
GB 50051 exhaust pipe design specification
GB 50057 lightning protection design code for buildings
GB 50058 Specification for design of electrical installations for explosion and fire hazard environments
GB 50140 Building Fire Extinguisher Configuration Design Specification
GB 50160 Petrochemical Enterprise Design Fire Protection Code
GB 50187 General Plan for Design of Industrial Enterprises
GB J 87 Industrial Enterprise Noise Control Design Specification
HGJ 229 Industrial equipment, pipeline anti-corrosion engineering construction and acceptance specifications
HJ/T 1 gas parameter measurement and sampling fixed position device
HJ/T 386 industrial waste gas adsorption purification device
HJ/T 387 industrial waste gas absorption and purification device
HJ/T 389 Industrial Organic Waste Gas Catalytic Purification Device
HJ .2000 Technical Guidelines for Air Pollution Control Engineering
JJF 1049 temperature sensor dynamic response calibration
"Design Regulations for Environmental Protection of Construction Projects" National Planning Commission, State Council Environmental Protection Committee [1987] No. 002
Regulations on Environmental Protection Management of Construction Projects, State Council of the People's Republic of China [1998] No. 253
“Measures for Completion and Acceptance of Construction Projects (Engineering)” National Planning Commission.1990
“Administrative Measures for Environmental Protection Acceptance of Completion of Construction Projects” State Environmental Protection Administration Order [2002] No. 13
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1 Industrial organic emissions
Refers to gaseous pollutants containing volatile organic compounds emitted by industrial processes.
3.2 Explosion limit explosive limit
Also known as the explosive concentration limit. Refers to the concentration range in which a combustible gas or vapor can be combined with air to explode.
3.3 Lower explosive limit lower explosive limit
Refers to the lowest concentration value of the explosion limit.
3.4 Activated carbon fiber felt activated carbon fiber felt
Refers to a porous material prepared by carbonization and activation of a fiber mat processed by viscose, polyacrylonitrile or pitch fiber.
3.5 Honeycomb activated carbon
Refers to the powdered activated carbon, water-soluble binder, lubricant and water, etc. after being compounded, kneaded, extruded, and then dried, charred,
Honeycomb adsorbent material prepared after activation.
3.6 Honeycomb molecular sieve honeycomb-type molecular sieve
Refers to the powdered molecular sieve, water-soluble binder, lubricant and water, etc. after being compounded, kneaded, extruded, and then dried and activated.
a honeycomb adsorbent material produced later; or a slurry prepared by using a powdery molecular sieve, a water-soluble binder, and water, is coated on the fiber material,
A honeycomb-like adsorbent material made by folding and drying.
3.7 BET specific surface area BET specific surface area
Refers to the surface area per unit mass of adsorbent tested by the BET method, in m2/g.
3.8 Fixed bed adsorption device fixed bed adsorber
Refers to the adsorption device in which the adsorbent layer is in a stationary state during the adsorption process.
3.9 moving bed adsorption device moving bed adsorber
It refers to the continuous passage of the adsorbent in a certain manner, and sequentially completes the adsorption, desorption and regeneration and re-enters the adsorption section of the adsorption section.
3.10 fluidized bed adsorption device fluidized bed adsorber
Refers to the adsorption device in which the adsorbent is strongly agitated under the action of high-speed airflow during the adsorption process, and the fluid is in a fluidized state.
3.11 Rotary wheel adsorber
Refers to a circular adsorption device with a certain thickness prepared by using granular, felt or honeycomb adsorption materials, driven by motor
The movement is divided into an adsorption zone, a regeneration zone and a cooling zone on the entire circular fan surface, and the polluted air is adsorbed and purified through the adsorption zone, and the pollution is adsorbed.
After the region of the object is rotated to the regeneration zone, it is regenerated by the hot air flow, and the regenerated high temperature zone is rotated to the cooling zone and then cooled by the cold airflow.
The adsorption and regeneration of the adsorbent are carried out in this cycle.
3.12 dynamic adsorption capacity
Refers to filling a certain amount of adsorbent into the adsorption column, so that a certain concentration of polluted air flows at a constant speed under constant temperature and constant pressure, when sucking
When the concentration of the pollutant in the outlet of the column reaches the set value, the average adsorption amount of the adsorbent per unit mass to the pollutant is calculated. Average adsorption amount
It is called the adsorbent's dynamic adsorption capacity of adsorbate at a given temperature, pressure, concentration and flow rate, in mg/g.
3.13 Purification efficiency
Refers to the ratio of the amount of pollutants captured by a treatment project or purification equipment to the amount of pollutants before treatment, expressed as a percentage. Calculated as follows.
2211 ×−=
Sn
Snsn
QC
QCQCη
(1)
In the formula.
Η-- purification efficiency of treatment engineering or purification equipment,%;
C1, C2 - concentration of pollutants imported or exported from treatment engineering or purification equipment, mg/m3;
Qsn1, Qsn2 - dry gas flow rate under the standard of import and export of treatment engineering or purification equipment, m3/h.
3.14 Regeneration of adsorbent
Refers to the process of desorbing the adsorbate from the adsorbent by means of high temperature steam, hot gas purging or depressurization.
3.15 In-situ regeneration of adsorbent in-site regeneration of adsorbent
Refers to the process in which the adsorbent adsorbing the pollutants is regenerated in situ in the adsorption device.
3.16 noncondensing gas
Refers to the portion of the mixed gas that has not been liquefied after being condensed at a low temperature.
4 Contaminants and pollution loads
4.1 In addition to the organic waste gas adsorption and recovery of solvent and oil storage and transportation devices, the concentration of organic matter in the organic waste gas entering the adsorption device should be low.
It is 25% of the lower limit of its explosion limit. When the concentration of organic matter in the exhaust gas is higher than 25% of the lower limit of its explosion limit, it should be reduced to its explosion.
Adsorption purification can be performed after 25% of the lower limit.
4.2 For exhaust gases containing mixed organic compounds, the controlled concentration P should be lower than the lower explosive limit of the most explosive component or mixed gas.
25%, ie P \u003cmin(Pe ,Pm)×25%，Pe为最易爆组分爆炸极限下限值（%），Pm为混合气体爆炸极限下限值
(%), Pm is calculated according to the following formula.
Pm=(P1 P2 Pn)/(V1/P1 V2/P2 Vn/Pn) (2)
In the formula.
Pm -- lower limit of explosive limit of mixed gas, %;
P1, P2,, Pn - the lower limit of the explosion limit of each component in the mixed gas, %;
V1, V2,, Vn - the volume percentage of each component in the mixed gas, %;
n -- The number of organic compounds contained in the mixed organic waste gas.
4.3 The particulate matter entering the adsorption unit should be less than 1 mg/m3.
4.4 The temperature of the exhaust gas entering the adsorption unit should be lower than 40 °C.
5 General requirements
5.1 General provisions
5.1.1 The construction of the governance project shall be carried out in accordance with the relevant national basic construction procedures or technical transformation approval procedures, and the overall design shall meet the requirements of “Construction”.
The provisions of the Environmental Protection Design Regulations of the Project and the Regulations on Environmental Protection Management of Construction Projects.
5.1.2 The governance project should follow the principles of comprehensive management, recycling, emission standards, and total amount control. Governance process design should be mature
Reliable, technologically advanced, economically applicable principles, and consider energy saving, safety and ease of operation.
5.1.3 The treatment project should be compatible with the production process level. Production companies should manage the equipment as part of the production system.
The treatment equipment should be operated synchronously with the corresponding production equipment that produces the exhaust gas.
5.1.4 The discharged pollutants after treatment shall comply with the national or local relevant air pollutant discharge standards.
5.1.5 Treatment and discharge of waste gas, waste water, waste residue and other pollutants generated during the construction and operation of the treatment project shall be implemented in the country
Relevant regulations on domestic or local environmental protection regulations and standards to prevent secondary pollution.
5.1.6 Governance works shall be set up in accordance with relevant national laws and regulations, air pollutant discharge standards and local environmental protection departments.
Continuous monitoring of equipment.
5.2 Engineering composition
5.2.1 The governance project consists of the main project and the auxiliary project.
5.2.2 The main works include exhaust gas collection, pretreatment, adsorption, adsorbent regeneration and desorption gas aftertreatment unit. If the process of production is in progress
When secondary pollutants are produced, secondary pollutant treatment facilities should also be included.
5.2.3 Auxiliary works mainly include testing and process control, electrical instrumentation and water supply and drainage units.
5.3 Site selection and general layout
5.3.1 Site selection and general layout should be carried out in accordance with the provisions of the standard GB 50187.
5.3.2 Site selection should follow the principles of reducing environmental impact, facilitating construction, operation and maintenance, and leaving fire exits in accordance with fire protection requirements.
Security distance.
5.3.3 The arrangement of the treatment equipment should consider the influence of the dominant wind direction to reduce the environmental impact of harmful gases and noise.
6 Process design
6.1 General requirements
6.1.1 Before the process route selection, the economic calculation is based on the recovery value and treatment cost of the organic matter in the exhaust gas.
Recycling process.
6.1.2 The treatment capacity of the treatment project should be determined according to the treatment volume of the exhaust gas, and the design air volume should be set according to 120% of the maximum exhaust gas emissions.
meter.
6.1.3 The purification efficiency of the adsorption device shall not be less than 90%.
6.1.4 The design of the exhaust pipe should meet the requirements of GB 50051.
6.2 Routing options
6.2.1 The process route should be selected based on comprehensive analysis of the source, nature (temperature, pressure, composition) and flow rate of the exhaust gas.
6.2.2 According to the different methods of adsorbent regeneration and desorption gas post-treatment, the typical treatment processes available are.
a) water vapor regeneration - condensation recovery process;
b) regeneration of hot gas (air or inert gas) - condensation recovery process;
c) hot gas (air) regeneration - catalytic combustion or high temperature incineration process;
d) Buck desorption regeneration - liquid absorption process.
A typical organic waste gas adsorption process flow chart is shown in Appendix A.
6.2.3 Continuously generated exhaust gas can be fixed bed, moving bed (including rotary adsorption device) and fluidized bed adsorption device, non-connected
A continuous bed adsorption device should be used for the continuous or unstable gas. When using a fixed bed adsorption device, it is advisable to use in situ regeneration of the adsorbent.
Process.
6.2.4 When the organic matter in the exhaust gas has a recovery value, steam regeneration, hot air flow (air or inert gas) may be selected according to the situation.
Regeneration or depressurization desorption regeneration process. The high concentration gas generated after desorption can be selected according to the situation, using cooling condensation or liquid absorption process.
The organic matter is recovered.
6.2.5 When the organic matter in the exhaust gas is not suitable for recycling, the hot gas flow regeneration process should be adopted. High concentration organic gas produced by desorption is catalyzed
Destruction by combustion or high temperature incineration process.
6.2.6 When the concentration of organic matter in the exhaust gas is high and it is easy to condense, it is better to use a condensation process to partially recover the organic matter in the exhaust gas.
Then carry out adsorption purification.
6.3 Process design requirements
6.3.1 Exhaust gas collection
6.3.1.1 The design of the exhaust gas collection system shall comply with the provisions of GB 50019.
6.3.1.2 The collection system of the main production unit itself should be used as much as possible. The configuration of the collector hood should be consistent with the production process.
Does not affect the process operation. Under the premise of ensuring the collection capacity, the structure should be simple and easy to install and maintain.
6.3.1.3 When determining the position, structure and wind speed of the suction port of the collector hood, the cover shall be in a state of micro-negative pressure and the negative pressure inside the cover shall be uniform.
6.3.1.4 The suction direction of the gas collecting hood should be as consistent as possible with the direction of the moving airflow to prevent the airflow around the suction hood from being disordered, avoiding or reducing
The influence of weak interference airflow and air supply airflow on the intake airflow.
6.3.1.5 When there are many exhaust gas generation points and they are far away from each other, multiple collection systems should be appropriately divided.
6.3.2 Pretreatment
6.3.2.1 The pretreatment equipment shall be selected according to the composition and nature of the exhaust gas and the nature and content of the substance affecting the adsorption process.
6.3.2.2 When the content of particulate matter in the exhaust gas exceeds 1 mg/m3, it should be pretreated by filtration or washing.
6.3.2.3 When the exhaust gas contains components that are difficult to desorb after adsorption or cause poisoning of the adsorbent, pretreatment such as washing or pre-adsorption should be used.
Processing.
6.3.2.4 When the concentration of organic matter in the exhaust gas is high, it should be adjusted to meet the requirements of 4.1 by condensation or dilution. When the exhaust gas temperature
When it is higher, it is adjusted to meet the requirements of 4.4 by heat exchange or dilution.
6.3.2.5 A differential pressure gauge shall be installed at both ends of the filter device. When the resistance of the filter exceeds the specified value, the filter material shall be cleaned or replaced in time.
6.3.3 Adsorption
6.3.3.1 The choice of adsorbent should meet the following requirements.
a) When using depressurization desorption, the performance of coal granular activated carbon should meet the requirements of GB/T 7701.2, and the working capacity of butane
(Test method see GB/T 20449) should be not less than 12.5g/dl, BET specific surface area should not be less than 1400m2/g. Non-coal particles
When activated carbon is used as the adsorbent, it can be referred to.
b) When using water vapor regeneration, the performance of coal granular activated carbon should meet the requirements of GB/T 7701.2, and the working capacity of butane (measured
For the test method, see GB/T 20449) It should be not less than 8.5g/dl, and the BET specific surface area should be not less than 1200m2/g. Non-coal granular activated carbon
It can be referred to as an adsorbent.
c) When regenerating by hot gas flow purging, the performance of coal granular activated carbon should meet the requirements of GB/T 7701.5, using non-coal
When the activated carbon is used as the adsorbent, it can be referred to. The BET specific surface area of the particulate molecular sieve should be not less than 350 m2/g.
d) The lateral strength of honeycomb activated carbon and honeycomb molecular sieve should be not less than 0.3MPa, and the longitudinal strength should not be lower than 0.8MPa, honeycomb activated carbon
The BET specific surface area should be not less than 750 m 2 /g, and the BET specific surface area of the honeycomb molecular sieve should be not less than 350 m 2 /g.
e) The breaking strength of activated carbon fiber mat should not be less than 5N (test method according to GB/T 3923.1), BET specific surface area should not
Less than 1100 m2/g.
6.3.3.2 After the adsorbent is selected, the amount of adsorbent in the adsorbent bed shall be based on the amount of exhaust gas treated, the concentration of pollutants and the dynamic adsorption of the adsorbent.
The amount is determined.
6.3.3.3 Fixed bed adsorption unit The gas flow rate of the adsorption layer shall be determined according to the form of the adsorbent. Gas flow rate when using granular adsorbent
It should be less than 0.60m/s; when using fibrous adsorbent (activated carbon fiber felt), the gas flow rate should be less than 0.15m/s; using honeycomb adsorbent
The gas flow rate should preferably be less than 1.20 m/s.
6.3.3.4 For mobile adsorption devices using honeycomb adsorbents, the gas flow rate should be less than 1.20 m/s; for granular adsorbents
In the moving bed and fluidized bed adsorption device, the gas flow rate of the adsorption layer should be determined according to the amount of the adsorbent, the particle size and the bulk density.
6.3.3.5 For the one-time adsorption process, the adsorbent should be replaced when the exhaust gas concentration does not meet the design or emission requirements; for renewable processes,
The adsorbent dynamic adsorption amount should be checked regularly, and the adsorbent should be replaced when the dynamic adsorption amount is reduced to 80% of the design value.
6.3.3.6 When using a fibrous adsorbent, the pressure loss of the adsorption unit should be less than 4 kPa; when using other shaped adsorbents, the adsorption unit
The pressure loss should be less than 2.5 kPa.
6.3.4 Regeneration of adsorbents
6.3.4.1 When steam is used for regeneration, the temperature of the water vapor should be lower than 140 °C.
6.3.4.2 When using hot air for regeneration, for activated carbon and activated carbon fiber adsorbents, the hot gas flow temperature should be lower than 120 ° C; for molecules
For the sieve adsorbent, the hot gas flow temperature should be lower than.200 °C. When flammable gases such as ketones are contained, hot air regeneration shall not be used. In the airflow after desorption
The concentration of the organism should be strictly controlled below 25% of the lower limit of its explosive limit.
6.3.4.3 The adsorbent after high temperature regeneration should be used after cooling.
6.3.5 Desorption gas post treatment
6.3.5.1 The post-treatment of desorbed gas may be carried out by condensation recovery, liquid absorption, catalytic combustion or high temperature incineration. Should be based on the exhaust
A post-treatment method is selected for the composition, recovery value, and processing cost of the machine.
6.3.5.2 When treating desorbed gas by condensation recovery method, the following requirements shall be met.
a) A condensing device such as a tubular or plate gas (vapor)-liquid condenser can be used.
b) When the boiling point of organic matter is high, it can be condensed with normal temperature water; when the boiling point of organic matter is low, the cooling water should use low temperature water or
Normal temperature - low temperature water multi-stage condensation.
c) The non-condensable gas generated by condensation should be introduced into the adsorption device for re-adsorption treatment.
6.3.5.3 When the desorption gas is treated by the liquid absorption method, the equilibrium partial pressure of the organic matter in the absorption liquid should be lower than the equilibrium of the organic matter in the exhaust gas.
Pressure. When the tail gas after liquid absorption cannot reach the standard discharge, it should be introduced into the adsorption device for re-adsorption treatment.
6.3.5.4 When the desorbed gas is treated by catalytic combustion or high temperature incineration, the generated flue gas s......
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