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GB/T 11060.12-2023: Natural gas - Determination of sulfur compound - Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy
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Natural gas - Determination of sulfur compound - Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy
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GB/T 11060.12-2023
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| GB/T 11060.12-2014 | English | 239 |
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Natural gas -- Determination of sulfur compound -- Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy
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GB/T 11060.12-2014
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Basic data | Standard ID | GB/T 11060.12-2023 (GB/T11060.12-2023) | | Description (Translated English) | Natural gas - Determination of sulfur compound - Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E24 | | Classification of International Standard | 75.060 | | Word Count Estimation | 15,167 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-09-01 | | Older Standard (superseded by this standard) | GB/T 11060.12-2014 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 11060.12-2023: Natural gas - Determination of sulfur compound - Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy
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ICS 75:060
CCSE24
National Standards of People's Republic of China
Replace GB/T 11060:12-2014
Determination of sulfur compounds in natural gas
Part 12: Determination by laser absorption spectrometry
Hydrogen sulfide content
2023-05-23 release 2023-09-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface I
Introduction III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 1
5 Reagents and materials 2
5:1 Hydrogen sulfide gas standard substance 2
5:2 Methane2
5:3 Hydrogen sulfide absorption solution 2
6 Instruments and equipment 2
6:1 General requirements 2
6:2 Laser light source 3
6:3 Pretreatment system 3
6:4 Analysis and detection unit 3
6:5 Data processing unit 3
6:6 Data display unit 3
6:7 Data transfer unit 3
7 sample 3
8 Determination step 3
8:1 Preparation 3
8:2 Calibration of the instrument 4
8:3 Analysis 4
9 Experimental data processing 4
10 Precision and measurement uncertainty4
10:1 Repeatability 4
10:2 Evaluation of uncertainty 5
Appendix A (Informative) Uncertainty Calculation Example 6
Appendix B (informative) This document is compared with the structure number of ISO 20676:2018 8
Reference 9
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 is part 12 of GB/T 11060 "Determination of Sulfur Compounds in Natural Gas": GB/T 11060 has issued the following
part:
--- Part 1: Determination of hydrogen sulfide content by iodometric method;
--- Part 2: Determination of hydrogen sulfide content by the methylene blue method;
--- Part 3: Determination of hydrogen sulfide content by double-light path detection method of lead acetate reaction rate;
--- Part 4: Determination of total sulfur content by oxidative microcoulometry;
--- Part 5: Determination of total sulfur content by hydrogenolysis-rate meter colorimetric method;
--- Part 6: Measuring the content of hydrogen sulfide, mercaptan sulfur and sulfur oxide carbon by potentiometric method;
--- Part 8: Determination of total sulfur content by ultraviolet fluorescence photometry;
--- Part 9: Determination of mercaptan sulfur content by iodometric method;
--- Part 10: Determination of sulfur compounds by gas chromatography;
--- Part 11: Determination of hydrogen sulfide content by coloring length detection tube method;
--- Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy;
--- Part 13: Determination of hydrogen sulfide content by ultraviolet absorption method:
This document replaces GB/T 11060:12-2014 "Determination of Sulfur Compounds in Natural Gas - Part 12: Laser Absorption Spectroscopy
"Determination of hydrogen sulfide content", compared with GB/T 11060:12-2014, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Changed the measurement range of hydrogen sulfide, changed the measurement range from "1%~20% (mole fraction)" to "1×10-6~20% (mole fraction)
score)" (see Chapter 1, Chapter 1 of the:2014 edition);
b) Changed Figure 1 (see Chapter 4, Chapter 3 of the:2014 edition);
c) Changed the requirements for hydrogen sulfide gas standard substance in reagents and materials (see 5:1, 5:1 of the:2014 edition);
d) Changed the requirements for zero calibration gas (see 5:2, 5:2 of the:2014 edition);
e) The requirements for hydrogen sulfide absorption liquid have been changed (see Section 5:3, 5:3 of the:2014 edition);
f) Added general requirements for instruments (see 6:1);
g) Added requirements for laser light sources (see 6:2);
h) Changed the gas pressure reducer and rotameter, integrated as a sample pretreatment system, and added a filter unit (see 6:3,:2014
version 4:2, 4:3);
i) Delete the hydrogen sulfide absorption bottle (see 4:4 of the:2014 edition);
j) Added requirements for analysis and testing units (see 6:4);
k) Increased data processing unit requirements (see 6:5);
l) Added requirements for data display unit (see 6:6);
m) Added data transmission unit requirements (see 6:7);
n) Added samples (see Chapter 7);
o) Change the preparation content in the determination steps (see 8:1, 6:1 of the:2014 edition);
p) Changed the calibration content of the instrument (see 8:2:1, 8:2:2, 8:2:3, 6:2 of the:2014 edition);
q) Changed the content of sample analysis (see Section 8:3, 6:3 of the:2014 edition);
r) Changed the test data processing requirements (see Chapter 9, 6:4 of the:2014 edition);
s) Changed the repeatability requirements (see 10:1, Chapter 7 of the:2014 edition);
t) Increased uncertainty assessment (see 10:2):
This document is modified to adopt ISO 20676:2018 "Determination of Hydrogen Sulfide Content by Laser Absorption Spectroscopy in the Upstream Field of Natural Gas":
Compared with ISO 20676:2018, this document has more structural adjustments, and the structure number changes between the two documents are compared in the list
See Appendix B:
The technical differences between this document and ISO 20676:2018 and their reasons are as follows:
---Changed the measurement range of hydrogen sulfide, changed the measurement range from "10×10-6~20% (mole fraction)" to "1×10-6~20% (mol fraction)
Score)" (see Chapter 1) to enhance the applicability of the standard;
--- Changed the normative reference documents, replacing ISO 10715 with GB/T 13609 (see Chapter 7) to enhance the operability of the standard
active;
--- Increased the terms and definitions defined in GB/T 20604 (see Chapter 3) to better adapt to the technical conditions of our country;
--- Added general requirements for instruments and equipment (see 6:1) to enhance operability;
--- Added requirements for laser light sources (see 6:2) to enhance operability;
--- Increased filter unit (see 6:3:1), to avoid liquid and solid particles affecting the operation of the instrument;
---Increase the pressure control range (see 6:3:2), and enhance the guiding significance and operability of the standard to users;
---Increase the flow control range (see 6:3:3), and enhance the guiding significance and operability of the standard to users;
--- An analysis and detection unit (see 6:4) has been added to enhance operability;
--- Increased data processing unit (see 6:5) to enhance operability;
--- Added data display unit (see 6:6) to enhance operability;
--- Increased data transmission unit (see 6:7) to enhance operability;
--- Added requirements for instrument preheating, instrument purging and zero point calibration (see 8:1), which improved the standardization of standard operation;
--- Changed the calibration frequency of the instrument (see 8:2:1) to meet the user's on-site analysis needs and improve the accuracy of the analysis data;
--- Changed the calibration steps of the instrument (see 8:2:2) to enhance the applicability of the standard;
---Changed the calibration method of the instrument (see 8:2:3), which is convenient for users to choose and use;
---Changed the description of the analysis steps (see 8:3) to enhance the standardization of the standard;
--- Changed the test data processing requirements (see Chapter 9) to improve the operability of the standard;
--- Changed the repeatability of the method (see 10:1), improving the applicability and operability of the standard:
The following editorial changes have been made to this document:
--- In order to coordinate with existing standards, change the name of the standard to "Determination of Sulfur-Containing Compounds in Natural Gas Part 12: Using Laser Absorption
Determination of hydrogen sulfide content by spectrometry";
--- Deleted the analysis flow chart (see 8:1);
--- Deleted the original Appendix A (informative) "Statistical example of repeatability assessment";
--- Added Appendix A (informative) "Uncertainty Calculation Example":
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Natural Gas Standardization Technical Committee (SAC/TC244):
This document was drafted by: PetroChina Southwest Oil and Gas Field Branch Natural Gas Research Institute, PetroChina
Co:, Ltd: Southwest Oil and Gas Field Branch, Sinopec Zhongyuan Oilfield Puguang Branch, China National Petroleum Corporation
Co:, Ltd: Southwest Oil and Gas Field Branch Natural Gas Purification Plant, Wuhan University, Wuhan Mizi Energy Technology Co:, Ltd:, Endresshaus (China
China) Automation Co:, Ltd:, Concentrating Technology (Hangzhou) Co:, Ltd:, China Institute of Metrology, and National Petroleum Pipeline Network Group Co:, Ltd:
Co:, Ltd: West-East Gas Pipeline Branch, China National Petroleum Corporation North China Oilfield Branch:
The main drafters of this document: Chang Honggang, Wang Weijie, Cai Li, Tang Meng, Zhou Li, Zeng Wenping, Li Xiaohong, Luo Qin, Chen Xuefeng, Fan Rui, He Min,
Wu Hai, Ma Fan, Jiang Jiqiang, Pei Quanbin, Hu Xuejiao, Xiang Liu, Huang Qiang, Gong Kai, Yu Dahai, Feng Hongnian, Zhao Boya, He Yaqin, Zhang Yingxia:
This document was first published in:2014, and this is the first revision:
Introduction
Sulfur compounds in natural gas include hydrogen sulfide, mercaptans and other organic sulfur compounds: From the perspective of safety, environmental protection and pipeline and equipment corrosion
The content of sulfur compounds is an important quality indicator of natural gas:
The purpose of measuring the content of sulfur compounds:
--- Monitor gas quality;
--- Monitor the operation of gas treatment plants to remove sulfur compounds:
In view of the obvious differences in the properties of different sulfur compounds, the different detection accuracy and detection purposes, my country has released the total sulfur in natural gas, individual sulfur
GB/T 11060 "Determination of Sulfur-Containing Compounds in Natural Gas" to ensure that users can
It is required to choose the appropriate method and carry out the determination under the best conditions:
GB/T 11060 "Determination of Sulfur Compounds in Natural Gas" consists of the following 12 parts:
--- Part 1: Determination of hydrogen sulfide content by iodometric method;
--- Part 2: Determination of hydrogen sulfide content by the methylene blue method;
--- Part 3: Determination of hydrogen sulfide content by double-light path detection method of lead acetate reaction rate;
--- Part 4: Determination of total sulfur content by oxidative microcoulometry;
--- Part 5: Determination of total sulfur content by hydrogenolysis-rate meter colorimetric method;
--- Part 6: Measuring the content of hydrogen sulfide, mercaptan sulfur and sulfur oxide carbon by potentiometric method;
--- Part 8: Determination of total sulfur content by ultraviolet fluorescence photometry;
--- Part 9: Determination of mercaptan sulfur content by iodometric method;
--- Part 10: Determination of sulfur compounds by gas chromatography;
--- Part 11: Determination of hydrogen sulfide content by coloring length detection tube method;
--- Part 12: Determination of hydrogen sulfide content by laser absorption spectroscopy;
--- Part 13: Determination of hydrogen sulfide content by ultraviolet absorption method:
Compared with chemical titration, laser absorption spectrometry is a more convenient and stable method for on-line monitoring of hydrogen sulfide:
Determination of sulfur compounds in natural gas
Part 12: Determination by laser absorption spectrometry
Hydrogen sulfide content
NOTE: This document does not address all safety issues related to its application: Before using this document, it is the user's responsibility to establish appropriate safety
Safety and protection measures, and clearly define the scope of application:
1 Scope
This document specifies the test method for the determination of hydrogen sulfide content in natural gas by laser absorption spectroscopy, including the principle of the method, reagents and materials
Specific requirements for materials, instruments and equipment, samples, determination procedures, data processing, method precision and uncertainty, etc:
This document is applicable to the online continuous monitoring of hydrogen sulfide content in natural gas, and the measurement range is 1×10-6~20% (mol fraction):
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 13609 Natural Gas Sampling Guidelines (GB/T 13609-2017, ISO 10715:1997, MOD)
GB/T 20604 Natural Gas Vocabulary
3 Terms and Definitions
The terms and definitions defined in GB/T 20604 apply to this document:
4 principles
The tuned laser beam emitted by the semiconductor laser passes through the measured gas and is detected by the photoelectric sensor of the receiving unit: exciting
The beam energy is attenuated by the absorption of hydrogen sulfide molecules in the measured gas, and the absorbance detected by the receiving unit is related to the hydrogen sulfide content in the measured gas:
According to the Lambert-Beer law:
Figure 1 shows the schematic diagram of the detection principle of the hydrogen sulfide analyzer by laser absorption spectroscopy:
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