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GB/T 17281-2016Determination of hydrocarbons from butane (C4) to hexadecane (C16) in natural gas—Gas chromatographic method (English PDF)

天然气中丁烷至十六烷烃类的测定气相色谱法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 30, 2016

Implementation date

July 1, 2017

Scope

GB/T 17281-2016 is the English-translated version of 天然气中丁烷至十六烷烃类的测定气相色谱法.

GB/T 17281-2016 is the Chinese standard "Determination of hydrocarbons from butane (C4) to hexadecane (C16) in natural gas—Gas chromatographic method". Its scope clause reads: This standard specifies the quantitative analysis of butane to hexadecane hydrocarbons in natural gas.

This standard applies to the determination of butane to hexadecane hydrocarbons in natural gas. Note 1. Butane and pentane hydrocarbon components are individually determined, and higher carbon hydrocarbons are classified as carbon.

Note 2. The results of this method and GB/T 13610 unaligned results can be combined to obtain a complete analysis of the results, GB/T 13610 Determination of component package Containing helium, hydrogen, oxygen, nitrogen, carbon dioxide, methane to pentane, hexane and heavier hydrocarbon components (C6).

Note 3. This standard is used in conjunction with GB/T 13610. The results of methane to pentane can be obtained by the method described in GB/T 13610, the hexane to hexadecane The results are described in the methods described in this standard. Its clauses include normative reference documents; principle; material.

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Document preview — GB/T 17281-2016

National Standard of the People's Republic of China

ICS: 75.060
Classification: E 24
Replacing: GB/T 17281-1998

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

4 material1
5 instrument2
6 Sample3
7 Step3
8 results show6
9 Test Report7
Appendix A (Normative Appendix) Method for sampling from a natural gas delivery line or separator8

1 Scope

This standard specifies the quantitative analysis of butane to hexadecane hydrocarbons in natural gas.

This standard applies to the determination of butane to hexadecane hydrocarbons in natural gas.

Note 1. Butane and pentane hydrocarbon components are individually determined, and higher carbon hydrocarbons are classified as carbon.

Note 2. The results of this method and GB/T 13610 unaligned results can be combined to obtain a complete analysis of the results, GB/T 13610 Determination of component package

Containing helium, hydrogen, oxygen, nitrogen, carbon dioxide, methane to pentane, hexane and heavier hydrocarbon components (C6).

Note 3. This standard is used in conjunction with GB/T 13610. The results of methane to pentane can be obtained by the method described in GB/T 13610, the hexane to hexadecane

The results are described in the methods described in this standard.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 4946 Glue term

GB/T 5274 Preparation of gas mixtures for gas analysis calibration

Composition analysis of natural gas - Gas chromatographic method GB/T

3 principle

Natural gas samples were injected into the capillary column of methylsiloxane. Using the program to heat up the separation, the composition of the flame with ionization

Detector (FID) for detection.

The quantitative determination of butane to hexadecane is either calibrated with a standard gas mixture containing butane and the remainder

The response of all hydrocarbons, or the pentane content measured with GB/T 13610.

When the results of the analysis are combined with the results obtained in GB/T 13610, the sum of the components is determined to be normalized

To 100%.

4 material

4.1 Carrier gas

Helium or nitrogen, the purity of not less than 99.99% 1), anaerobic and water.

1) If the purity of the gas is lower than specified, it is advisable to check the presence of impurities. That is, even if the carrier gas nitrogen or hydrogen purity is appropriate

It is stipulated that some of the impurities present in these gases will still interfere with the analysis, and in this case appropriate purification is necessary.

4.2 auxiliary gas

4.2.1 Hydrogen

Purity of not less than 99.99%.

4.2.2 Air

No hydrocarbon impurities.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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Editions of GB/T 17281

Edition	Title	Revision	Status
GB/T 17281-2016	Determination of hydrocarbons from butane (C4) to hexadecane (C16) in natural gas—Gas chromatographic method	current edition	Current
GB/T 17281-1998	Determination of hydrocarbons from butane (C4) to hexadecane (C16) in natural gas—Gas chromatographic method	previous edition	Superseded

This page sells the current edition, GB/T 17281-2016. Earlier editions are listed for reference only.

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