HG 29804-1991 Calculation method for energy consumption of synthetic ammonia products HG29804-1991 standard download decompression password: www.bzxz.net

Calculation method of energy consumption of synthetic hydrogen products 1 Content and scope
This standard specifies the calculation method of energy consumption of synthetic hydrogen products.
975412
(HG 29804—91)
This standard is applicable to the calculation of energy consumption of synthetic ammonia products of different origins and processes, and is the basis for the assessment of energy consumption of synthetic ammonia products 2 Reference standards
GB2589 General rules for calculation of comprehensive energy consumption
ZBGO1001 General rules for calculation of energy consumption and savings of chemical enterprises 3 Energy consumption calculation
3.1 Energy consumption of synthetic nitrogen products is divided into: comprehensive energy consumption of products, comprehensive energy consumption per unit product, and comprehensive energy consumption per comparable unit product. 32 Comprehensive energy consumption refers to the total energy consumed in the production of synthetic nitrogen products during the reporting period, which includes the energy consumption and loss of production systems: auxiliary production systems, and ancillary production systems. It does not include infrastructure, life energy, and energy output to the outside of the system.
3.2.1Energy includes primary and secondary energy and energy-consuming working fluids. The energy quantity is based on the meter. The calorific value of raw materials and fuels is based on the measured value. The calorific value of electric energy is calculated as 0.404 kg of standard coal/kilowatt-hour. The energy and loss of auxiliary and auxiliary systems shared with other products are calculated according to the consumption ratio allocation method. 3.2.2The units of physical energy are tons, dry grams, cubic meters, standard cubic meters, kilowatt-hours, etc. The energy unit of comprehensive energy consumption is ear or dry grams of standard coal.
3.2.3The energy consumption of the production system refers to the direct energy consumption of gasification, gas purification, compression, ice machine, ammonia synthesis, auxiliary boiler, and ammonia storage processes.
3.2.4The energy consumption of the auxiliary production system refers to the energy consumed in the process of providing steam, energy-consuming working fluids, raw materials, and fuel for the production of synthetic ammonia.
3.2.5 The energy consumption of the auxiliary production system refers to the energy consumption of mechanical, electrical, instrumentation, metal processing and other processes that provide indirect conditions for the production of synthetic ammonia, as well as the energy used for repair work including planned minor repairs and shutdowns of the synthetic nitrogen production system, and the energy consumed in the start-up and shutdown processes caused by maintenance (including major repairs). : 3.26 "Energy-consuming working fluids include primary water, circulating water, soft water, deoxygenated water, oxygen, nitrogen, compressed air, etc. 3.2.7 Output energy refers to the primary and secondary energy and energy-consuming working fluids output to the outside of the system during the synthetic production process. 3.2.8 The comprehensive energy consumption does not include the following parts: a. Processing of by-product sulfur;
b. Utilization of waste heat and waste energy in the production process of synthetic ammonia for this system; c. Ice machine added for commercial ammonia.
3.2.9: The comprehensive energy consumption of the product is calculated according to formula (1): 335
Wu Zhong: E, one Comprehensive energy consumption of synthetic ammonia products, kilograms of standard coal;! The amount of certain energy and energy-consuming materials consumed by the production system of synthetic hydrogen products, in grams, kilowatt-hours, cubic meters or standard cubic meters;
u——the energy and energy-consuming materials consumed by the auxiliary and ancillary production systems in the production process of synthetic ammonia and their losses;
K the coefficient of certain energy conversion to standard coal;
number of energy types.
Comprehensive energy consumption per unit product:
Comprehensive energy consumption per unit product refers to the comprehensive energy consumption expressed in terms of unit production of synthetic hydrogen. Calculated according to formula (2): Ea E
: Ea—comprehensive energy consumption per unit product of synthetic ammonia, kg standard coal/ton; L
—synthetic nitrogen production, tons.
3.3.1.1 The production of synthetic hydrogen shall be based on the metering table. 3.3.1.2, the production of synthetic ammonia hydrogen includes:
. a. Nitrogen used for nitrogen processing;
b. Commercial nitrogen;
c. Ammonia used for self-use in the production process of synthetic ammonia (copper ammonia liquid washing, rehydration desulfurization, etc.); d. Hydrogen recovered from hydrogenation relaxation gas, analytical gas, and synthesis tower blow-off gas. (2)
3.4 ​​Comparable unit product comprehensive energy consumption:
3.4.1 The amount of energy directly consumed in the system of comparable unit product comprehensive energy consumption, It includes: starting from the gasifier (gasifier, cracking furnace), gas purification, gas compression, ammonia synthesis, auxiliary boilers, ice machines and the direct energy consumption of the ammonia storage process, excluding the energy consumption of auxiliary and ancillary systems and the loss and allocation outside the system, and also does not include the energy consumption of normal operation or accident start-up and shutdown processes. 3.4.2. The calorific value of primary and secondary energy entering the synthetic ammonia production system shall be based on the actual measured value. 3.4.3 The conversion coefficient of energy-consuming working fluids shall be selected according to Appendix A. 3.4.4 The comprehensive energy consumption of comparable unit products is calculated according to formula (3): Z(eK)
Where: E—comprehensive energy consumption of comparable unit products of synthetic ammonia, kilograms of standard coal/ton of ammonia; e: a certain energy directly consumed in the synthetic ammonia production system, in grams, in watt-hours, cubic meters cubic meter or standard cubic meter; K is the standard coal conversion coefficient of a certain energy source.
3.4.5 When methanol and synthetic ammonia are produced together, the actual amount of raw material consumption is calculated based on the ratio of 100% crude methanol to synthetic ammonia (re-recorded) of 1.1/1.0, and the energy consumption of other processes is calculated based on 1.0/1.0. 336
Purchased water
Dehydrogenated water
Yu air
Oxidation gas
Appendix A
Average conversion heat table of energy-consuming working fluids
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Conversion unit
Average conversion heat
2.51 (MJ/ton)
600 (cal/ton)||tt ||14.23 (megajoules/ton)
3400 (calories/ton)
28.5 (megajoules/ton)
6800 (calories/ton)
1.1 megajoules/standard meter
280 (square calories/meter)
0.88 (megajoules/standard meter)
210 (calories/internal meter)
11.72 (megajoules/standard meter)
2.800 (kilocalories/standard meter)
19.66 (megajoules/standard meter)
4700 (medium calories/standard meter)
6.28 megajoules/standard meter)
1500 (kilocalories/standard meter*)
Converted to standard coal, kg
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