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Gas chromatography measurement method for hydrogen sulfide and carbonyl sulfide in crude synthesis gas

A technology of gas chromatography and determination method, which is applied in the field of gas chromatography determination of hydrogen sulfide and carbonyl sulfide in crude synthesis gas, can solve the problems of poor data accuracy and repeatability, high measurement cost of hydrogen sulfide and carbonyl sulfide, and achieves data accuracy And the effect of high repeatability, low equipment cost, simple and convenient operation

Inactive Publication Date: 2019-07-05
INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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Problems solved by technology

[0004] In order to solve the problems of high cost of measuring hydrogen sulfide and carbonyl sulfide in the prior art, and poor data accuracy and repeatability, the present invention proposes a gas chromatography method for measuring hydrogen sulfide and carbonyl sulfide in crude synthesis gas, which can be used at low cost Configuration of Gas Chromatograph for Hydrogen Sulfide and Carbonyl Sulphide Measurement in Crude Syngas

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  • Gas chromatography measurement method for hydrogen sulfide and carbonyl sulfide in crude synthesis gas
  • Gas chromatography measurement method for hydrogen sulfide and carbonyl sulfide in crude synthesis gas
  • Gas chromatography measurement method for hydrogen sulfide and carbonyl sulfide in crude synthesis gas

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Embodiment 1

[0023] 1. Materials and tools

[0024] Agilent 6820GC (6-way valve injection, 1ml quantitative loop, packed column inlet, TCD detector); CNW Company Paropak Q chromatography filler (60-80 mesh); CNW Company Paropak N chromatography filler (60-80 mesh); φ3*3000 stainless steel chromatographic column tube; hydrogen (>99.999%); glass wool; isotope bottle (20ml); standard gas (hydrogen sulfide 800ppm, carbonyl sulfide 100ppm, hydrogen balance).

[0025] Suction filter bottle; vacuum pump; two rubber tubes, rubber rod, iron stand, titration clamp, beaker, medicine spoon, small triangular funnel, thin metal stick (for glass wool at both ends of the column).

[0026] 2. String treatment

[0027] First soak in 10% hot sodium hydroxide aqueous solution, and then wash with tap water until neutral. Repeat the treatment once more with 1:20 dilute hydrochloric acid aqueous solution.

[0028] 3. Filling volume weighing

[0029] First, the filling volume V is determined by the inner diam...

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Abstract

The invention relates to a gas chromatography measurement method for hydrogen sulfide and carbonyl sulfide in a crude synthesis gas. The method includes the following steps that: (1) a Paropak Q filler and a Paropak N filler are weighed, and are mixed uniformly; (2) the Paropak Q filler and Paropak N filler are added to a chromatographic column; (3) chromatographic column aging is performed; and (4) chromatographic measurement is performed. The method of the invention has the advantages of low device cost, simple and convenient operation, high data accuracy and high repeatability. With the method adapted, total sulfur, namely the hydrogen sulfide and carbonyl sulfide in the crude synthesis gas can be measured; desulfurization treatment in a subsequent stage can be well guided; and the problem that an existing method fails to effectively measure carbonyl sulfide when applying a Paropak N chromatographic column can be solved.

Description

technical field [0001] The invention belongs to the field of gas chromatography, in particular to a method for measuring hydrogen sulfide and carbonyl sulfide in crude synthesis gas by gas chromatography. Background technique [0002] Gasified crude synthesis gas is an important product of the gasification section, its main components are carbon monoxide, hydrogen, methane, carbon dioxide, water, nitrogen, hydrogen sulfide, carbonyl sulfide, and the effective components for the synthesis section are carbon monoxide and hydrogen for synthesis reactions , the rest of the gas will be processed in the post-processing section, and the most critical gases are hydrogen sulfide and carbonyl sulfide, because hydrogen sulfide and carbonyl sulfide gas directly poison the catalyst of the synthesis reaction, especially for the Fischer-Tropsch synthesis catalyst. Therefore, crude The content of hydrogen sulfide and carbonyl sulfide in the gas directly affects the load of desulfurization t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/74
CPCG01N30/02G01N30/74
Inventor 张晓龙钱震李俊诚武靖为高源曹宏成董蓝雨
Owner INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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