Mixed solvent for removing acid gas
A technology of mixed solvents and acid gases, which is applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of high equipment material requirements, complex processes, and high cold preservation requirements, and achieve optimized formulas, reduced energy consumption, and low The effect of fees
Inactive Publication Date: 2012-09-12
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It has the characteristics of strong absorption capacity, good selectivity, high degree of purification, and low regeneration energy consumption, but it has strong toxicity, high requireme
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0025] Mixed solvent PC50%+EC25%+DMC15%+TEA5%+NFM2%+Pi1%+MDEA2%
Embodiment 2
[0027] Mixed solvent PC50%+EC20%+DEC20%+TEA5%+MDEA2%+NFM2%+PZ0.5%+HA-K0.5%
Embodiment 3
[0029] Mixed solvent PC70%+EC10%+DEC10%+TEA5%+MDEA2%+NFM2%+PZ0.5%+HA-K0.5%
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
Login to view more Abstract
The invention discloses a mixed solvent for removing acid gas, which belongs to the technical field of gas separation and is characterized by being composed of two or more than two of main absorption components, assisting absorption components and active components in mixing mode, wherein the main absorption components comprise propylene carbonate (PC), ethylene carbonate (EC), dimethyl carbonate (DMC), diethyl carbonate (DEC) and N-methyl-2-pyrrolidone (NMP), the assisting absorption components comprise N-methyldiethanolamine (MDEA), triethanolamine (TEA), diglycolamine (DGA) and dimethylethanolamine (DMEA), and the active components comprise phosphoric acid (Pi), piperazine (PZ), urotropin (HA-K), N-Formylmorpholine formylmorpholine (NFM), 2-amino-2methyl-1-propyl alcohol (AMP) and morpholine by-products. By means of the mixed solvent for removing acid gas, on one hand, absorption capacity and purification of CO2 are improved, and on the other hand, desulfuration accuracy is greatly improved.
Description
technical field [0001] The invention belongs to the field of gas separation, and relates to a mixed solvent for removing acid gas (CO2, sulfide) from medium and high pressure process gas. Background technique [0002] In petrochemical, coal chemical, ammonia synthesis, methanol synthesis, oxo synthesis, hydrogen production and natural gas industries, it is necessary to remove acid gases (mainly carbon dioxide and sulfide) from raw gas to meet the needs of subsequent processes. At present, there are many mature purification methods in the industry, which can be divided into three types: physical absorption, chemical absorption, and physical and chemical absorption. The solvents used are pure physical solvent absorbents, chemical solvents and activators. Absorbents composed of solvents. Generally speaking, the investment and operation costs of the physical absorption method are low, and it is not necessary to use steam regeneration, and it is not necessary to install a large ...
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
Login to view more IPC IPC(8): B01D53/14
Inventor 梁锋施小红明素荣徐丙根张弛
Owner CHINA PETROLEUM & CHEM CORP
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
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