GB/T 33445-2023Coal-based synthetic natural gas (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

This document replaces GB/T 33445-2016 "Synthetic Natural Gas from Coal". Compared with GB/T 33445-2016, except for structural adjustment and compilation In addition to editorial changes, the main technical changes are as follows:

a) Changed the classification of coal-to-synthetic natural gas (see 4.1, 4.1 of the 2016 edition);

b) The regulations on product gases other than the three categories are deleted (see 4.3 of the 2016 edition);

c) Changed the calorific value of a type of gas high level (see Table 1, Table 1 of the 2016 edition);

d) Changed the technical requirements for hydrogen content (see Table 1, Table 1 of the 2016 edition);

e) Changed the carbon dioxide technical requirements (see Table 1, Table 1 of the 2016 edition);

f) Change the technical requirements for carbon monoxide (see Table 1, Table 1 of the 2016 edition);

g) Added technical requirements for oxygen content (see Table 1);

h) Delete the technical requirements for ammonia content (see Table 1 of the 2016 edition)

i) Delete the technical requirements for solid particles (see Table 1 of the 2016 edition);

j) Delete the water dew point technical requirements (see Table 1 of the 2016 edition);

k) Changed the inspection rules and sampling requirements (see Chapter 6, Chapter 5 of the 2016 edition);

l) Added the determination method of oxygen content (see 5.5);

m) The requirements for transportation, marking, storage, transportation and use have been changed (see Chapter 7, Chapter 7 of the 2016 edition).

1 Scope

This document specifies the classification and technical requirements, inspection rules, test methods, and transportation, marking, storage, transportation and use of coal-to-synthetic natural gas.

This document is applicable to synthetic natural gas produced from coal, including coke oven gas, semi-coke tail gas, steelmaking blast furnace gas, etc., produced after treatment.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 11062 Calculation method of calorific value, density, relative density and Wobbe index of natural gas

GB 12268 List of Dangerous Goods

GB/T 13609 Natural Gas Sampling Guidelines

GB/T 17258 Compressed natural gas cylinders for automobiles

GB/T 19158 Compressed natural gas cylinders for stations

GB/T 28727 Gas Analysis - Determination of Sulfides - Flame Photometric Gas Chromatography

GB/T 30490 Natural Gas Automatic Sampling Method

GB/T 33318 Gas Analysis - Determination of Sulfur Compounds - Sulfur Chemiluminescence Gas Chromatography

GB/T 37124 Requirements for the quality of gas entering long-distance natural gas pipelines

GB 50028 Code for Design of Town Gas

GB 50251 Code for Design of Gas Transmission Pipeline Engineering

JJG 700 Gas Chromatograph Verification Regulations

TSG R0005 Mobile Pressure Vessel Safety Technical Supervision Regulations

TSG 21 Safety Technical Supervision Regulations for Stationary Pressure Vessels

TSG 23 Gas Cylinder Safety Technical Regulations

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Classification and technical requirements