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

An absorbent for reducing methane concentration

A methane concentration and absorbent technology, which is applied in the field of absorbents for reducing methane concentration, can solve the problems of single surfactant, low gas absorption effect, and difficulty in reducing gas concentration, so as to enhance safety, reduce gas concentration, increase The effect of large particle size

Inactive Publication Date: 2017-03-29
CHINA UNIV OF MINING & TECH (BEIJING)
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the gas-absorbing materials mainly include a single surfactant, an absorbent compounded with a surfactant and vegetable oil, etc., but the gas-absorbing effect of these existing gas-absorbing materials is still relatively low, and it is difficult to realize Quickly and efficiently reduce gas concentration

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
  • An absorbent for reducing methane concentration
  • An absorbent for reducing methane concentration
  • An absorbent for reducing methane concentration

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Sodium dodecyl sulfate (SDS), sodium dodecylbenzenesulfonate (SDBS), sodium oleate, fatty alcohol polyoxyethylene ether carboxylate (AEC), lauryl ether phosphate The five single surfactants of potassium (MAEPK) were subjected to methane absorption experiments, and the volume fractions of methane absorbed when the solute mass fractions of the surfactants were 5%, 10%, 15%, and 20% were respectively measured. The specific experimental results of this example 1 can be shown in the following table 1:

[0030] Table 1:

[0031] Solute mass fraction of surfactant 5％ 10％ 15％ 20％ Volume fraction of methane absorbed by SDS 4.48％ 5.21％ 5.74％ 6.24％ Volume fraction of methane absorbed by SDBS 3.65％ 4.49％ none none Volume fraction of methane absorbed by sodium oleate 5.35％ 5.87％ 5.76％ none Volume fraction of methane absorbed by AEC 4.12％ 4.62％ 5.45％ 5.86％ Volume fraction of methane absorbed by MAEPK 3.78％ 4.02％ 4.43％ 4.98...

example 2

[0033] Adopt sodium dodecyl sulfate (SDS) to carry out compounding respectively with these 4 kinds of vegetable oils of castor oil, olive oil, cottonseed oil, peppermint oil, and measure the mass ratio of SDS and every kind of vegetable oil respectively at 6:1, 8: 1. Volume fraction of methane absorbed at 9:1, 11:1, 13:1, 17:1, 19:1; SDS, castor oil and decamethylcyclopentasiloxane were used to compound and measure Get the volume fraction of absorbed methane when the mass ratio of SDS and castor oil is respectively at 6:1, 8:1, 9:1, 11:1, 13:1, 17:1, 19:1, wherein decamethyl The consumption of cyclopentasiloxane accounts for 4% of the mass sum of the three. The specific experimental results of this example 2 can be shown in the following table 2;

[0034] Table 2:

[0035]

[0036]By comparing the measurement results of example 1 and example 2, it can be seen that: compared with a single surfactant, the absorbing agent compounded by SDS and vegetable oil has improved the ...

example 3

[0039] Adopt sodium dodecyl sulfate (SDS) to carry out compounding respectively with these 4 kinds of vegetable oils of castor oil, olive oil, cottonseed oil, peppermint oil, and measure the mass ratio of SDS and every kind of vegetable oil respectively at 6:1, 13: 1. The volume fraction of methane absorbed at 19:1. At the same time, SDS, castor oil and activated carbon were used to compound, and the volume fractions of methane absorbed when the mass ratios of SDS and castor oil were 6:1, 13:1, and 19:1 were measured, and the amount of activated carbon accounted for three 0.03% of the total mass of those. Then use SDS, castor oil, decamethylcyclopentasiloxane and activated carbon to compound, and measure the volume of methane absorbed when the mass ratio of SDS and castor oil is 6:1, 13:1, 19:1 Fractions, wherein the amount of decamethylcyclopentasiloxane accounts for 4% of the total mass of the three, and the amount of activated carbon accounts for 0.03% of the total mass of...

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 an absorbent capable of reducing concentration of methane. The absorbent is an organic and sequential complex mixture prepared by mixing the following materials in percentage by weight: 0.30 to 1.80% of vegetable oil, 5 to 15% of an anionic surfactant, more than 0% and not greater than 4% of decamethylcyclopentasiloxane, and more than 0% and not greater than 0.1% of activated carbon, and the balance of water. The absorbent disclosed by the embodiment is convenient to use and low in cost; the solubility of methane can be greatly improved, and therefore, the concentration of gas in air can be efficiently and quickly reduced, and as a result, the safety of mine production can be increased.

Description

technical field [0001] The invention relates to the field of harmful gas absorption in coal mine production, in particular to an absorbent for reducing methane concentration. Background technique [0002] Gas is a gas that exists in a free state and an adsorbed state in coal bodies. Its main component is methane, which is insoluble in water and cannot maintain breathing. Severe combustion or explosion is caused, so the gas concentration needs to be closely monitored in coal mine production. When the gas concentration exceeds the standard, the production can only be stopped, and measures such as strengthening underground ventilation or using gas-absorbing materials to quickly absorb the gas concentration are used to reduce the gas concentration. [0003] In the prior art, the gas-absorbing materials mainly include a single surfactant, an absorbent compounded with a surfactant and vegetable oil, etc., but the gas-absorbing effect of these existing gas-absorbing materials is st...

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): B01D53/14
Inventor 张增志张超杰邢蕊峰
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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