GB/T 29721-2023Commercial coal quality—Coal for fluidized bed gasification (English PDF)

Foreword

This document complies with the regulations of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Custom drafting.

This document replaces GB/T 29721-2013 "Technical Conditions for Raw Coal for Fluidized Bed Gasification". Compared with GB/T 29721-2013, except In addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Product quality levels and technical requirements have been changed (see Chapter 4, Chapter 3 of the 2013 edition);

b) The classification of coal products for fluidized bed gasification has been added, and the quality grades are divided according to ash content and total sulfur index. Expressed in the form of "sulfur grade" (see 4.1);

c) Added inspection rules (see Chapter 6);

d) Added labeling, transportation and storage requirements (see Chapter 7).

1 Scope

This document stipulates the product quality grade and technical requirements, test methods, inspection rules, labeling, transportation and Storage.

This document applies to raw coal for fluidized bed gasification in all aspects of production, processing, storage, transportation, sales, and use.

2 Normative reference documents

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

GB/T 211 Method for determination of total moisture in coal

GB/T 212 Industrial analysis methods for coal

GB/T 213 Calorific value determination method of coal

GB/T 214 Determination method of total sulfur in coal

GB/T 216 Determination of phosphorus in coal

GB/T 219 Method for determination of fusibility of coal ash

GB/T 220 Determination method of coal's reactivity to carbon dioxide

GB/T 474 Coal sample preparation method

GB/T 475 Manual collection method of commercial coal samples

GB/T 3058 Determination method of arsenic in coal

GB/T 3558 Determination method of chlorine in coal

GB/T 5447 Determination method of bituminous coal adhesion index

GB/T 5751 China Coal Classification

GB/T 16659 Determination of mercury in coal

GB/T 19494.1 Mechanized coal sampling Part 1: Sampling methods

GB/T 19494.2 Mechanized sampling of coal Part 2: Preparation of coal samples

GB/T 25209 Commercial coal identification

GB/T 25214 Infrared spectroscopy method for determination of total sulfur in coal

GB/T 30732 Industrial analytical methods for coal - Instrumental method

GB/T 31087 Technical requirements for control of commercial coal and debris

SN/T 3511 Determination of mercury in minerals General principles for direct determination of mercury by solid sample injection

3 Terms and definitions

There are no terms or definitions to be defined in this document.