Full-component quantitative detection device and method for natural gas containing high-concentration H2S

A quantitative detection and natural gas technology, applied in measurement devices, material separation, analysis of materials, etc., can solve the problems of complex analysis process and long analysis process, improve experimental analysis efficiency, accurate test results, avoid long-term and toxic Effects of harmful gas exposure

Pending Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology in the prior art, such as the complex analysis process of natural gas containing hydrogen sulfide, the analysis process is too long, etc., to provide a hydrogen-containing 2 Quantitative detection device and method for all components of natural gas in S

Method used

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  • Full-component quantitative detection device and method for natural gas containing high-concentration H2S
  • Full-component quantitative detection device and method for natural gas containing high-concentration H2S
  • Full-component quantitative detection device and method for natural gas containing high-concentration H2S

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] a H 2 S natural gas full component quantitative detection device, such as Figure 1-4 As shown, it includes a first detection part A and a second detection part B; the first detection part A includes a third connection part 3, a first sample storage part, a first separation part and a first thermal conductivity detector 8, so The first sample storage part, the first separation part, and the first thermal conductivity detector 8 are respectively communicated with the third connection part 3; further, the first detection part A also includes a first buffer column 5, the The first thermal conductivity detector 8 communicates with the third connection part 3 through the first buffer column 5, the first sample storage part includes the first quantitative tube 4, and the first separation part includes a separation column 6 and molecular sieves7. Specifically, the first quantitative tube 4 is a 1mL quantitative tube, the separation column 6 is a HayesepR separation column, w...

Embodiment 2

[0086] Detection of Natural Gas No.1 Sample

[0087] The content of each component in the standard gas: O 2 (0.200%), N 2 (2.00%), C 2 h 6 (2.53%), CO 2 (3.00%), H 2 S (1.49%), C 3 h 8 (2.52%), iC 4 h 10 (0.204%), nC 4 h 10 (0.201%), iC 5 h 12 (0.202%), nC 5 h 12 (0.201%), C 6+ (0.203%), He (0.200%), H 2 (0.199%), CH 4 , (86.889%)

[0088] The specific implementation process of the test includes the following steps:

[0089] S1. Start the device, set the initial state of the device, set the flow rate of carrier gas nitrogen at the first detection part A to 20mL / min, column pressure at 19.3psi, and column temperature at 120°C; set the flow rate of carrier gas helium at the second detection part B to 25mL / min , the chromatographic column pressure is 41psi, the chromatographic column temperature is 130°C, and the device is preheated and stabilized for 1 hour. After the preheating is completed, adjust the ten-way valve and eight-way valve of the device to the...

Embodiment 3

[0101] Natural Gas No. 2 Sample

[0102] The specific detection method of the natural gas No. 2 sample is the same as in Example 2, the only difference being the content of hydrogen sulfide in the natural gas sample.

[0103] In this embodiment, natural gas No. 2 sample is used, and the hydrogen sulfide content in the sample is about 10.00%. The measured data of the natural gas sample are shown in Table 2.

[0104] Table 2 Test data of natural gas No. 2 sample

[0105]

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Abstract

The invention discloses an oil gas experimental analysis technology. The invention discloses an all-component quantitative detection device for natural gas containing high-concentration H2S. The all-component quantitative detection device comprises a first detection part and a second detection part, the first detection part comprises a third connecting part, a first sample storage part, a first separation part and a first thermal conductivity detector; the second detection part comprises a first connecting part, a second connecting part, a second sample storage part, a second separation part and a second thermal conductivity detector; the invention develops an independent dual-channel gas chromatographic analysis device formed by matching the performance of a thermal conductivity detector (TCD), a plurality of pneumatic valves and a plurality of different chromatographic columns, realizes one-time quantitative detection of all components of the natural gas containing H2S, greatly saves the sample dosage, the detection time and the detection cost, greatly improves the experimental analysis efficiency, and is suitable for large-scale industrial production. The long-time contact between experimental analysts and toxic and harmful gases is effectively avoided, and the test result is more accurate by taking a multi-component gas standard substance as a calculation reference.

Description

technical field [0001] The invention relates to the technical field of oil and gas experimental analysis, in particular to a 2 A device and method for quantitatively detecting all components of natural gas. Background technique [0002] Hydrogen sulfide gas is a colorless, irritating and toxic gas that enters the human body through the respiratory tract, mainly damaging the central nervous system, respiratory system, and irritating mucous membranes. The symptoms of mild poisoning are photophobia, tearing, eye stinging, runny nose, foreign body sensation Nasopharyngeal burning, accompanied by symptoms such as dizziness, headache, and fatigue; dizziness, headache, fatigue, nausea, vomiting, unsteady walking, coughing, dyspnea, throat itching, and chest compression will appear immediately after moderate poisoning Sensation, disturbance of consciousness and other symptoms, strong eye irritation symptoms, tearing, photophobia, and eye stinging sensation; severe poisoning may cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/66G01N30/86G01N30/88G01N30/20G01N30/04G01N30/60
CPCG01N30/02G01N30/66G01N30/8634G01N30/88G01N30/20G01N30/04G01N30/6034G01N2030/8854G01N2030/8859G01N2030/042G01N2030/201
Inventor 陈霞刘成川敬永红刘莉萍梁颖罗桂滨徐莹黄亮张戈浩蒋明丽刘昊年郑懿刘华全永旺
Owner CHINA PETROLEUM & CHEM CORP
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