Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method to improve the accuracy of total sulfur analysis

An accuracy and analysis device technology, applied in the field of improving the accuracy of total sulfur analysis, can solve the problems of impact on results, cumbersome operation, low analysis accuracy, etc., and achieve improved accuracy, good repeatability and accuracy, and full conversion Effect

Active Publication Date: 2019-03-15
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The method disclosed in this patent document for the determination of organic sulfide content in gas, for complex gas components, the absorbent cannot completely absorb the sulfide components, and incomplete extraction or the extraction agent absorbs a small amount of sulfide components may affect the results. Great impact, low analysis accuracy, cumbersome operation, small scope of application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method to improve the accuracy of total sulfur analysis
  • A method to improve the accuracy of total sulfur analysis
  • A method to improve the accuracy of total sulfur analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for improving the accuracy of total sulfur analysis, comprising the following steps:

[0044] a. Select the standard sample gas with the same composition and content as the actual natural gas sample. The standard sample gas includes hydrogen sulfide, carbonyl sulfide, methyl mercaptan, ethanethiol, propylene mercaptan, isopropyl mercaptan, carbon disulfide and thiophene;

[0045] b. First put the standard sample gas into the normal-pressure tin foil bag 7, then connect the tin foil bag 7 to the first air inlet pipe 11 of the total sulfur analysis device, determine the sample volume of the calibration point, and the standard sample gas is in the cracking furnace The quartz high-temperature combustion tube 10 of 2 is burned together with oxygen, and the sulfur dioxide converted into the titration cell 3 along with the argon gas after combustion reacts with the electrolyte, and the total sulfide content in the standard sample gas is calculated by calculating the el...

Embodiment 2

[0050] A method for improving the accuracy of total sulfur analysis, comprising the following steps:

[0051] a. Select the standard sample gas with the same composition and content as the actual natural gas sample. The standard sample gas includes hydrogen sulfide, carbonyl sulfide, methyl mercaptan, ethanethiol, propylene mercaptan, isopropyl mercaptan, carbon disulfide and thiophene;

[0052] b. First put the standard sample gas into the normal-pressure tin foil bag 7, then connect the tin foil bag 7 to the first air inlet pipe 11 of the total sulfur analysis device, determine the sample volume of the calibration point, and the standard sample gas is in the cracking furnace The quartz high-temperature combustion tube 10 of 2 is burned together with oxygen, and the sulfur dioxide converted into the titration cell 3 along with the argon gas after combustion reacts with the electrolyte, and the total sulfide content in the standard sample gas is calculated by calculating the el...

Embodiment 3

[0062] A method for improving the accuracy of total sulfur analysis, comprising the following steps:

[0063] a. Select the standard sample gas with the same composition and content as the actual natural gas sample. The standard sample gas includes hydrogen sulfide, carbonyl sulfide, methyl mercaptan, ethanethiol, propylene mercaptan, isopropyl mercaptan, carbon disulfide and thiophene;

[0064] b. First put the standard sample gas into the normal-pressure tin foil bag 7, then connect the tin foil bag 7 to the first air inlet pipe 11 of the total sulfur analysis device, determine the sample volume of the calibration point, and the standard sample gas is in the cracking furnace The quartz high-temperature combustion tube 10 of 2 is burned together with oxygen, and the sulfur dioxide converted into the titration cell 3 along with the argon gas after combustion reacts with the electrolyte, and the total sulfide content in the standard sample gas is calculated by calculating the el...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method capable of improving total sulfur analysis accuracy and belongs to the technical field of petrochemical industry. The method includes following steps: a, selecting standard sample gas including hydrogen sulfide, carbonyl sulfide, methyl mercaptan, ethyl mercaptan, propyl mercaptan, isopropyl mercaptan, carbon disulfide and thiophene; b, filling a tin foil bag at normal pressure with the standard sample gas, connecting the tin foil bag onto a first gas incoming pipe, determining sample feeding volume of a correction point, respectively measuring repeatedly, and calculating an average value to obtain a total sulfur value; c, measuring total sulfur values under different sample feeding volumes, and establishing a standard curve; d, filling an empty normal-pressure tin foil bag with to-be-measured sample gas, calling the standard curve, starting a total sulfur analysis device, repeating sample feeding for three times, and acquiring an average value which is content of total sulfide in the to-be-measured sample gas. Through the method, accurate and quantitive analysis of total sulfur content in natural gas can be realized; no matter for high-concentration samples or complex samples, analysis errors can be reduced, and total sulfur analysis accuracy can be improved.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a method for improving the accuracy of total sulfur analysis. Background technique [0002] The total sulfide content is a key quality indicator of commercial natural gas. Sulfur-containing compounds will have a destructive impact on the transportation, storage and use of natural gas. Therefore, the total sulfide content is an essential item for natural gas detection. With the increasing environmental protection requirements With continuous improvement, commercial natural gas has stricter restrictions on the total sulfide content. At the same time, the total sulfide content is also a particularly important control indicator for natural gas purification processes and various chemical processes that use natural gas as raw materials. Accurate and quantitative analysis of natural gas total sulfide content is the premise and basis for product quality control, process co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 崔吉宏陈辉苗华姜玉峰夏吉佳卢波程娟邓清月高洋洋李永峰韩雪梅范祝君
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com