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GB 26569-2011: Civil coalbed methane (coal mine gas) [including MODIFICATION 1]
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Civil coalbed methane (coal mine gas) [including MODIFICATION 1]
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Basic data
Standard ID: GB 26569-2011 (GB26569-2011)
Description (Translated English): Civil coalbed methane (coal mine gas) [including MODIFICATION 1]
Sector / Industry: National Standard
Classification of Chinese Standard: D20
Classification of International Standard: 75.160
Word Count Estimation: 6,635
Date of Issue: 2011-06-16
Date of Implementation: 2011-11-01
Quoted Standard: GB/T 11060.2; GB/T 11060.4; GB/T 11062; GB/T 12206; GB/T 13609; GB/T 13610; GB/T 17283; GB/T 18605.2; GB 50028; GB 50251
Regulation (derived from): Announcement of Newly Approved National Standards No. 9 of 2011
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 Chinese standard specifies the civilian coalbed methane (CMM) of the terms and definitions, quality requirements, product testing, labeling, transportation and storage. This standard applies to civil coalbed methane (CMM).
GB 26569-2011: Civil coalbed methane (coal mine gas) [including MODIFICATION 1]
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Civil coalbed methane (coal mine gas)
ICS 75.160
D20
National Standards of People's Republic of China
Civil coalbed methane (CMM)
Issued on. 2011-06-16
2011-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
4.1 and 6.3 of this standard are mandatory, the rest are recommended.
The standard proposed by China Coal Industry Association.
This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized.
This standard was drafted. Shanxi Jincheng Anthracite Coal Mining Group Co., Ltd., China Coal Research Institute Beijing Coal Chemical Research points
School, Xi'an University of Technology, Institute of Coal Research Institute Chongqing, blue flame Shanxi CBM Engineering Research LLC.
The main drafters of this standard. Zhu Xiaoming, Yang Mao-lin, Liguo Biao, Wang Baoyu, Huqian Ting, Jiang Ying, Tian Yongdong, Bai Jianping, Ma Dongmin,
Luo meteorite fly.
Civil coalbed methane (CMM)
1 Scope
This standard specifies the civilian coalbed methane (CMM) terms and definitions, quality requirements, product testing, labeling, transportation and storage.
This standard applies to civil coalbed methane (CMM).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB /11060.2 Determination of sulfur compounds in natural gas T Part 2. Determination of hydrogen sulfide content with methylene blue method
Determination of GB/T 11060.4 gas sulfur compounds - Part 4. Determination of total sulfur content by oxidation Microcoulometry
GB/T 11062 natural gas calorific value, density, relative density and Wobbe index calculation method
GB/T 12206 Town gas calorific value and relative density determination
GB/T 13609 Gas sampling guidelines
GB/T 13610 natural gas composition analysis by gas chromatography
17283 water dew point of natural gas - Determination of GB/T Cooled surface condensation hygrometers law
Determination of GB/T 18605.2 gas hydrogen sulfide content - Part 2. lead acetate reaction rate single photo path method
GB 50028 City Gas Design Code
GB 50251 gas pipeline project design specifications
3 Terms and Definitions
3.1
CBM coalbedmethane
Fu seam and surrounding rock to the presence of methane as the main component of natural gas.
This standard especially during influx CBM from coal seams and surrounding rock drilling methane as the main component of natural gas.
3.2
CMM coalminegas
Coal mining process into the mining space or natural gas pipe line from the coal seam and surrounding rock.
4 quality requirements
4.1 Civil coalbed methane (CMM) methane content of not less than 30%.
4.2 Civil coalbed methane (CMM) is divided into class Ⅰ, Ⅱ type, Ⅲ class, Ⅳ class, shall comply with the requirements in Table 1.
Table 1 civilian CBM (CMM) Technical Specifications
project
Technical Specifications
Class Ⅰ Ⅱ Ⅲ Ⅳ class class class
Methane content (volume fraction) /% ≥90 ≥83 ~ 90 ≥50 ~ 83 ≥30 ~ 50
Gross Calorific Qgr/(MJ/m3) ≥34 ≥31.4 ~ 34 ≥22.3 ~ 31.4 ≥15.5 ~ 22.3
The total sulfur content of S/(mg/m3) ≤100
Hydrogen sulfide content/(mg/m3) ≤6
Water dew point
Under pressure and temperature conditions intersection of CBM, CBM water dew point should be higher than the lowest ambient
5 ℃ low temperature
Note 1. When the methane content index and gross calorific value indicators of conflict, the methane content indicators classification.
Note 2. This standard gas volume in standard reference conditions 101.325kPa, 20 ℃.
Note 3. The supply residents of CBM (CMM) should be added odor agent.
5 Test methods
5.1 methane content
According to GB/T 13610 execution.
5.2 Gross Calorific Value
According to GB/T 12206 or GB/T 11062 execution.
5.3 Total sulfur content
Measured by the GB/T 11060.4 execution.
5.4 hydrogen sulfide content
According to GB/T 11060.2 or GB/T 18605.2 execution.
5.5 water dew point
According to GB/T 17283 execution.
6 Product Inspection
6.1 Sampling
According to GB/T 13609 execution.
6.2 Inspection
Testing and factory inspection sub-type test.
6.2.1 factory inspection
Test items methane content, two hydrogen sulfide content.
6.2.2 Type inspection
Project-based inspection of all project standards. Type inspection should be drawn from the factory inspection products. The following conditions
First, the type of inspection should be carried out.
--- First put into production when;
--- When normal production, type of inspection every two years;
--- Test results are quite different and the last type test results;
--- Replacement of major equipment or new equipment into the main system in use;
--- Product discontinuation six months or more to resume production.
6.3 determination
Factory inspection methane content of hydrogen sulfide content in the two there is a failure, it is determined that the product failed.
Type test when there is a failure, it is determined that the product failed.
7 logo, odorant, transport and storage
7.1 Logo
Civil coalbed methane (CMM) identification should be marked "flammable" in a prominent place, obviously the words "No smoking" and so on.
7.2 Odorization
Civil coalbed methane (CMM) should odorant, with perceptible odor. The minimum amount of odorant to be qualified as a CBM (Coal watts
Sri Lanka) leaked into the air, methane volume fraction of 1%, should be able to detect.
7.3 transport and storage
Civil coalbed methane (CMM) transport, storage should be in line with GB 50028 and GB 50251 provisions which class Ⅲ and Ⅳ class domestic coal
Bed methane (CMM) transport, storage pressure allowed higher than 0.8MPa.
National Standard No. 1 amendments
The amendments approved by the National Standardization Management Committee on January 20, 2015, with effect from March 1, 2015 implementation.
Table 1 amended as follows.
Table 1 civilian CBM (CMM) Technical Specifications
project
Technical Specifications
Class Ⅰ Ⅱ Ⅲ Ⅳ class class class
Methane content (volume fraction) /% ≥90 ≥83 ~ 90 ≥50 ~ 83 ≥30 ~ 50
Gross Calorific Qgr/(MJ/m3) ≥34 ≥31.4 ~ 34 ≥18.9 ~ 31.4 ≥11.3 ~ 18.9
The total sulfur content of S/(mg/m3) ≤100
Hydrogen sulfide content/(mg/m3) ≤6
Water dew point
Under pressure and temperature conditions intersection of CBM, CBM water dew point should be higher than the lowest ambient
5 ℃ low temperature
Note 1. When the methane content index and gross calorific value indicators of conflict, the methane content indicators classification.
Note 2. This standard gas volume in standard reference conditions 101.325kPa, 20 ℃.
Note 3. The supply residents of CBM (CMM) should be added odor agent.
......
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