Liquid composition capable of removing sulfide in gas

A liquid composition and degassing technology, which is applied in combustible gas purification, combustible gas purification/transformation, organic chemistry, etc., can solve problems such as lack of anti-corrosion ability, impact on desulfurization efficiency, and inability to obtain easily

Inactive Publication Date: 2009-08-19
江苏大海能源科技有限公司
View PDF10 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the methods of using hindered amine desulfurization described in the above documents have some drawbacks
Wherein CN 1125158 A uses different components to selectively remove H 2 S and CO 2 , due to the small hindrance coefficient of the sterically hindered amine used, the selectivity of desulfurization is low, and organic sulfur such as mercaptans and thioethers cannot be

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
  • Liquid composition capable of removing sulfide in gas
  • Liquid composition capable of removing sulfide in gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Composition of desulfurizer solution: hindered amine TBEE 10%, alkanolamine MDEA 45%; additives 44.9% (including benzotriazole 1%, polyoxyethylene sorbitan monooleate 4%, quinone 95%); defoamer methyl silicone oil 0.1%.

[0033] The solutions of the above components are mixed to prepare the desulfurizing agent solution of the present invention.

[0034] At 40°C under normal pressure, use the desulfurizer solution obtained above to pass figure 1 The device shown removes the gas to be treated (N 2 80%, CO 2 16%, H 2 S3%, mercaptan 540mg / m 3 ), the result H2 S, mercaptan removal rate is 90%.

Embodiment 2

[0040] Absorbing solution composition: hindered amine TBEE 20%, alkanolamine triisopropanolamine 35%; additives 44.9% (of which benzotriazole 3%, quinone 60%, α-naphthoquinone 37%); Defoamer methyl silicone oil 0.1%.

[0041] The preparation method and desulfurization method are the same as in Example 1.

[0042] The result shows H 2 S, mercaptan removal rate is 85%.

Embodiment 3

[0044] Composition of desulfurizer solution: hindered amine TBEE 10%, alkanolamine MDEA 30%, triisopropanolamine 15%; additives 44.9% (including polyoxyethylene sorbitan monooleate 10%, hydroquinone 90% %); antifoaming agent methyl silicone oil 0.1%.

[0045] The preparation method and desulfurization method are the same as in Example 1.

[0046] The result shows H 2 S, mercaptan removal rate is 90%.

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 provides a liquid composition for removing sulfide in gas, which consists of an absorbent, an auxiliary agent and an antifoaming agent, wherein the absorbent consists of steric hindrance amine and alkanolamine; the auxiliary agent is one or a mixture of thiazoles, fatty amine and phenols; and the antifoaming agent is siloxane. The liquid composition comprises the following components in percentage by weight: 29 to 89 percent of absorbent, 10 to 70 percent of auxiliary agent and 0.01 to 1 percent of antifoaming agent. The liquid composition can simultaneously and effectively remove organic sulfur and inorganic sulfur in the gas, has obvious desulfurization effect, can effectively protect production equipment, and reduces the loss and the maintenance cost.

Description

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

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
IPC IPC(8): B01D53/14C10K1/14C07C7/11C07C9/04
Inventor 黄精忠杨文毅陈先奎
Owner 江苏大海能源科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap