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GB 29436.2-2015: Norm of energy consumption per unit product of methanol -- Part 2: Natural gas to methanol
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GB 29449   GB 29539   GB 29540   GB 29436   GB 29445   GB/T 29456   

Basic data

Standard ID GB 29436.2-2015 (GB29436.2-2015)
Description (Translated English) Norm of energy consumption per unit product of methanol -- Part 2: Natural gas to methanol
Sector / Industry National Standard
Classification of Chinese Standard F01
Classification of International Standard 27.010
Word Count Estimation 10,150
Date of Issue 2015-06-30
Date of Implementation 2016-07-01
Quoted Standard GB/T 213; GB 338; GB/T 2589; GB/T 3484; GB/T 11062; GB/T 12497; GB/T 12723; GB/T 13462; GB/T 13466; GB 17167
Regulation (derived from) National Standard Announcement 2015 No.21
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Standard specifies the natural gas as raw materials to produce methanol energy consumption per unit product requirements, the scope of statistics, computational methods, and energy management measures. This Standard applies to natural gas as raw materials to produce methanol product enterprise computing energy consumption, assessment, as well as for new construction, renovation and expansion project of methanol consumption control.

GB 29436.2-2015: Norm of energy consumption per unit product of methanol -- Part 2: Natural gas to methanol


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Norm of energy consumption per unit product of methanol.Part 2. Natural gas to methanol ICS 27.010 F01 National Standards of People's Republic of China Methanol energy consumption per unit product Part 2. natural gas, methanol Part 2. Naturalgastomethanol Published 2015-06-30 2016-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Foreword

In this section 4.1 and 4.2 are mandatory, others are recommended. This standard was drafted in accordance with rules GB/T 1.1-2009 given. GB 29436 "Methanol energy consumption per unit product" is divided into four parts. --- Part 1. coal, methanol; --- Part 2. natural gas, methanol; --- Part 3. ammonia methanol co-production; --- Part 4. coke oven gas methanol. This is Part of 2 GB 29436. This section Conservation and Environmental Protection, the Ministry of Industry and Information Technology Energy Saving and Comprehensive Utilization Department put forward by the National Development and Reform Commission resources. This in part by the National Energy Foundation and Management Standardization Technical Committee (SAC/TC20) China Petroleum and Chemical Industry Federation Centralized. This part of the drafting units. China Nitrogen Fertilizer Industry Association, China Petroleum and Chemical Industry Federation. The main drafters of this section. Wang Liqing, Wei Yong, Li Yongliang, Sun Shaohua, Cao accounted high, Zhang Rong, Zhou Junhua, Ling Xiaodong, Li Dan, Sun Weishan, Chen Jiming. Methanol energy consumption per unit product Part 2. natural gas, methanol

1 Scope

GB 29436 This section provides the natural gas as raw material for methanol consumption of energy per unit of product (hereinafter referred to as consumption) limits Requirements, the scope of statistics, computational methods, and energy management measures. This section applies to the production of methanol from natural gas products enterprise computing energy consumption assessment, as well as for new or expanded A Energy consumption of alcohol control project.

2 Normative references

The following documents for the application of this document is essential. For dated references, only applies to the version dated paper Pieces. For undated references, the latest edition (including all repair orders) applies to this document. Heat GB/T 213 Determination of coal GB 338 industrial methylated GB/T 2589 comprehensive energy consumption computing General GB/T 3484 General corporate energy Ping Heng GB/T 11062 calorific gas, density, relative density and Wobbe Index Method GB/T 12497 three-phase asynchronous motor economy GB/T 12723 energy consumption per unit product preparation General GB/T 13462 power transformer economic operation GB/T 13466 AC driven fan (pump, air compressor) General economic operation system GB 17167 energy use per unit of energy measurement apparatus equipped and General Management

3 Terms and Definitions

GB/T 12723 defines the following terms and definitions apply to this document. 3.1 Methanol comprehensive energy consumption comprehensiveenergyconsumptionofmethanolproduction In statistical reporting period, the total production of methanol various energy products consumed. 3.2 Methanol comprehensive energy consumption per unit of product comprehensiveenergyconsumptionperunitproductofmethanol Methanol product expressed in the comprehensive energy consumption per unit of production. 4. Technical Requirements 4.1 existing natural gas, methanol manufacturers limit energy consumption per unit of product Conventional natural gas, methanol company limits the energy consumption per unit product should meet the requirements of Table 1. Table 1 conventional natural gas, methanol manufacturers limit energy consumption per unit of product Type of feedstock Methanol comprehensive energy consumption per unit of product / (Kgce/t) Gas ≤1460 4.2 New natural gas, methanol production enterprises access to energy consumption per unit of product value New natural gas, methanol production enterprises access unit product energy consumption values should be consistent with the requirements of Table 2. Table 2 New natural gas, methanol production enterprises access to energy consumption per unit of product value Type of feedstock Methanol comprehensive energy consumption per unit of product / (Kgce/t) Gas ≤1150 4.3 natural gas, methanol production enterprises advanced energy consumption per unit of product value Manufacturer of advanced energy consumption per unit of product value of natural gas, methanol should be in accordance with Table 3. Table 3 manufacturers of advanced energy consumption per unit of product value of natural gas, methanol Type of feedstock Methanol comprehensive energy consumption per unit of product / (Kgce/t) Gas ≤1150 Statistical methods and calculation range 5 5.1 statistical range 5.1.1 methanol production including a variety of input energy production system, auxiliary production system, the production system affiliated primary energy consumed amount (formerly Coal, oil, natural gas, etc.), the amount of secondary energy (electricity, heat, petroleum products, coke, coal gas, etc.), production and use of energy working fluid (water, oxygen, Compressed air energy consumed), not including the aspects of construction and renovation process with energy and life energy (for example, an enterprise system dormitories, schools, etc. Energy). Production system includes desulfurizing, conversion, conversion, purification, methanol synthesis, and other technology sectors methanol distillation. Auxiliary production system mainly Comprising a gasification agent (oxygen, oxygen enriched air, air and steam) preparation, water treatment and circulating cooling water systems, heating systems, instrumentation control sub Production system includes waste (waste water, solid waste) treatment, mechanic, electrical repair and the like. 5.1.2 Methanol output energy refers to energy for other products or devices used methanol system output externally. Methanol production system to produce Emissions, waste recovery is not used, no measurement, no measured values, and not by way of thermal energy again, can output shall be reckoned the amount. Methanol system out system output energy, the output energy should be included in methanol outwardly. Synthetic air discharge, methanol storage purge gas, steam Isochronous outwardly system output can not deduct off from the input of coal fuel in coal consumption, but should be included in the energy output of methanol. 5.1.3 Energy recycling methanol production, energy shall not be included as an input to the present system. 5.1.4 methanol necessary for the production of energy (e.g., oil recovery energy consumption, waste water treatment, etc.) safety, environmental protection facilities consumption, should be included in methanol Energy consumption. 5.1.5 Multi-user sharing of raw materials, utilities (steam, energetic working fluid, etc.) energy consumption shall apportion the relevant provisions. 5.1.6 energy loss of stock depletion, should be assessed monthly. 5.2 Calculation Method 5.2.1 methanol comprehensive energy consumption by the formula (1). E = Σ i = 1 (Ei × ki) -Σ j = 1 (Ej × kj) (1) Where. E --- methanol comprehensive energy consumption in kg coal (kgce); --- n-number of types of energy input; The amount of physical energy Ei --- i-th input of the methanol production process, tonnes (t) or kilowatt (kW · h) or standard cubic meters (M3); Ki --- i-th coefficient of coal off the energy input, in kilograms per tonne of coal (kgce/t) or kilograms per kilowatt coal When [kgce/(kW · h)] or kgce per standard cubic meter (kgce/m3); --- m number of kinds of energy output; Ej --- j th physical energy amount of methanol production process output in tonnes (t) or kilowatt (kW · h) or standard cubic meters (M3); J th coefficient of coal off energy kJ --- output in kilograms per tonne of coal (kgce/t) or kilograms per kilowatt coal When [kgce/(kW · h)] or kgce per standard cubic meter (kgce/m3). 5.2.2 Calculation of methanol production Appendix A. 5.2.3 Methanol comprehensive energy consumption per unit of product according to equation (2) is calculated. e = (2) Where. E --- Methanol comprehensive energy consumption per unit of product, in kilograms per tonne of coal (kgce/t); Methanol --- E comprehensive energy consumption reporting period, in kg coal (kgce); Methanol production M --- During the reporting period, tonnes (t). 5.2.4 various energy sources (natural gas, coal, electricity, steam) heating value should be GB/T 2589 translated into a uniform unit of measurement --- coal, each Species off standard coal energy enterprise computing coefficients to whichever heating value measured during the reporting period. Coal and natural gas calorific value measuring method according to GB/T 213 and GB/T 11062 execution. Various input, output energy calculation methods described in Appendix B. 5.2.5 methanol

6 and energy management measures

6.1 energy management 6.1.1 establish and improve the energy management organization, energy-saving work organization, management, monitoring, assessment and evaluation. 6.1.2 develop energy-saving systems and measures, establish and improve energy conservation responsibility assessment system. 6.1.3 implementation of GB 17167, reasonably equipped and with good energy measurement equipment and instrumentation, the measuring equipment in good condition; logarithmic basis According to effectively detect, measure and calculate, ensure the accuracy and integrity of the energy underlying data. 6.1.4 implementation of GB/T 3484, scientific and effective organization of energy statistics to ensure the accuracy and timeliness of energy statistics, good Energy consumption and utilization of statistical analysis, regularly published, and make energy statistics management and archiving. 6.2 energy-saving measures 6.2.1 Economic Operation 6.2.1.1 enterprises should make the production of generic equipment to achieve the state of the economy, the economic operation of the motor management should be consistent with GB/T 12497 Regulations; economic operation and management of fans, pumps and air compressors shall comply with GB/T 13466; the economy of power transformers Operation and management should be consistent with GB/T 13462 of. 6.2.1.2 enterprises should strengthen maintenance equipment, pipe network, maintenance and management, improve the load rate of the equipment, reducing the run, run, drip, leak; rotating equipment should be combined Li match, the stationary device is in high-efficiency low-power state; enhancing recovery and use waste heat, residual pressure. 6.2.2 energy-saving technology 6.2.2.1 energy efficient exploitation of new technologies, new processes, new equipment. 6.2.2.2 promote clean production, improve resource utilization efficiency, reduce emissions of pollutants. 6.2.2.3 the promotion of cogeneration, improve the utilization of heat and power units. 6.2.2.4 promotion of waste water, waste gas, solid waste utilization technology. 6.2.2.5 promotion of high-efficiency conversion, purification, synthesis, distillation technology. 6.2.2.6 elimination of high energy consumption, high pollution technology and equipment. 6.2.3 supervision and evaluation Establish energy consumption testing, energy statistics, energy Ping Heng paper files and examination results of energy consumption, and the file is controlled by management.

Appendix A

(Normative) Methanol production Calculation A.1 spirit and scope of the calculated yield of methanol A.1.1 methanol production statistics reporting period in an enterprise, the crude methanol distillation step after the crude methanol to remove water, mixed alcohols, ethers and other impurities, production Product quality in line with GB 338. A.1.2 accurate measurement. enterprises should be equipped with the necessary metering equipment, to yield the actual measurement, the measurement should be used methanol metering. To maintain Methanol permit accurate measurement of flow meter, should resolve the methanol gas dissolved in methanol through an intermediate pressure tank, pressure and temperature to be compensated. When prices The use of existing methanol production industry summary table, there are points when each user table, the table should divide the total Ping Heng sheet, shall not exceed the allowed error methanol flow meter Difference. A.1.3 product quality standards. GB 338 product quality should be consistent with the provisions of the technical conditions specified in the order or contract, before statistical production. A.1.4 Period covered. product yield reflects the outcome of a certain period of industrial production, where the reporting period, the products should be calculated in the newspaper Production sue within the period. A.1.5 methanol production enterprises, including the amount of goods sold and the enterprise self-consumption. In the production of industrial products, waste generated, not It should be counted as product output; enterprises purchased from outside the enterprise without any industrial processing, not as a business product output statistics. A.1.6 crude methanol belonging semi-finished products are not as statistics, the statistical assessments facilitate semi-finished products consumed calculated. A.2 methanol production Calculation A.2.1 crude methanol production (physical quantity) Calculation Method After the crude alcohol flowmeter tank. The crude methanol production (t) = (period crude methanol stock - stock opening crude methanol) crude alcohol tank after each flowmeter sum Meter before the crude alcohol tank. The crude methanol production (t) of each flow meter before the tank and the crude alcohol = No flow meter. The crude methanol production (t) = the count of the metering tank and the liquid level of each of the crude alcohol A.2.2 refined methanol production (physical quantity) Calculation Method After finishing tank flowmeter alcohol. Refined methanol production (t) = (ending refined methanol stock - stock beginning refined methanol) alcohol tank after finishing each flowmeter sum Before finishing tank flowmeter alcohol. Yield of refined methanol (t) = flow meter before each pot and alcohol No flow meter. Yield of refined methanol (t) = the count of the metering tank and the liquid level of each fine-ol

Appendix B

(Normative) Calculation methanol production input, output energy B.1 methanol production of various energy input B.1.1 methanol and natural gas product consumption B.1.1.1 methanol total gas consumption, comprising a feedstock and fuel natural gas. Units of standard cubic meters (m3). B.1.1.2 export, personal use (other non-production of refined methanol product) of crude methanol consumed by the total amount of consumption of natural gas of methanol gas should be deducted except. Purchased refined methanol production process is subtracted from the crude methanol in the methanol production. B.1.2 methanol fuel standard coal consumption of the product B.1.2.1 methanol fuel consumption of coal means coal fuel boiler actual investment. When B.1.2.2 boiler produced (or purchased) is a multi-product steam, steam heat should be assessed for each user consumes fuel or coal purchased Steam consumption. The amount of steam consumed methanol, methanol production system comprising a total amount of steam and the auxiliary subsidiary production system used. Steam output Steam heat should be included in the output of energy. B.1.2.3 when steam from corporate-owned power plants, coal fuel consumption should be assessed in accordance with captive power plant steam enthalpy value. B.1.2.4 purchased by steam enthalpy steam purchased off coal, boiler efficiency is not considered. B.1.2.5 export, personal use (other non-production of refined methanol product) crude methanol and crude methanol purchased processing of refined methanol fuel coal apportioned It shall be deducted from the total amount of methanol consumption of fuel coal. Yield of refined methanol purchased crude methanol from the methanol production process are subtracted. B.1.3 methanol product consumption B.1.3.1 "total amount of methanol consumption" production systems include methanol and auxiliary sub production system power consumption and loss, as well as production lines Emergency overhaul of the system, planned repair of small power consumption, does not include the construction and renovation process with energy and life energy quarters within the enterprise system (for example, school School and other aspects of energy). Metering to prevail. B.1.3.2 methanol CHP. When all the thermoelectric system with methanol waste heat, residual pressure power generation, power consumption of methanol is not deductible cogeneration Amount, which is included in the power generation output energy methanol. When all or part of the thermoelectric system using coal power generation fuel purchased thermoelectric independent accounting system, Methanol consumption nor spontaneous deduction amount, for heat cogeneration in methanol, heat and pressure, the methanol included in the output energy. B.1.3.3 export, personal use (other non-production of refined methanol product) crude methanol and crude methanol purchased processing of refined methanol power consumption should be apportioned In methanol was subtracted from the total power consumption. Yield of refined methanol purchased crude methanol from the methanol production process are subtracted. B.2 Methanol products of various output power B.2.1 methanol blowing gas, purge gas, or other products for gas analytical means used as an energy source (a raw material, fuel) (including burning as a civilian ) Found by low calorific value through the use of the output energy of the feed gas. B.2.2 system output material in methanol (slag discharged from a boiler and the like) or other products for use as an energy source means (such as manufactured honeycomb, coal Ball fired brick, power plant as fuel, etc.) by Found low calorific value through the output energy. B.2.3 steam boiler or all of captive power plant waste heat utilization system methanol, TRT, when steam production (not blended with other purchased fuel), for its external External power supply off steam and coal are included in the energy output of methanol. Off the power to the output when the value of coal. B.2.4 methanol production using waste heat to preheat the material (or produced water), or other products for use in the apparatus (by recovering thermal energy). Recovering heat energy calculating formula (B.1) is. Q = D × C × (T1-T2) (B.1) Where. --- Q output of the thermal energy of waste heat recovery units of megajoules (MJ); D --- amount of preheated material, in kilograms (kg); C --- preheated material specific heat, the unit megajoules per kilogram degree Celsius [MJ/(kg · ℃)]; T1, T2 --- the material is preheated, the temperature of the methanol system, in degrees Celsius (deg.] C). B.2.5 outer methanol system feeding the condensate (water) for other products or users (including for the purpose of life), can be used as output energy from the Overall energy consumption deducted (outward transport of the condensate or hot water consumed electric power should be deducted). Calculation formula (B.2). Q = W × C × (T1-T2) (B.2) Where. Q --- Delivery condensate (water) heat energy output, in units of megajoules (MJ); --- W is the system to send the outer methanol condensate (water) amount, in kilograms (kg); C --- Delivery condensate specific heat (hot water) the amount, in units of megajoules per kilogram degree Celsius [MJ/(kg · ℃)]; Tl --- Delivery condensate (water) temperature, in degrees Celsius (deg.] C); T2 --- statistical reporting period average ambient temperature, in degrees Celsius (℃). B.2.6 export, personal use (other non-production of refined methanol product) crude methanol and crude methanol purchased processing of refined methanol average output power apportioned It should be deducted from the total amount of methanol in energy output. Yield of refined methanol purchased crude methanol from the methanol production process are subtracted.

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