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Alcohol-based gas stripping process

A stripping and acid gas technology, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of high steam energy cost and reduce the overall efficiency of the system

Inactive Publication Date: 2012-09-26
UNIVERSITY OF REGINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy required to generate steam is costly and reduces the overall efficiency of the system

Method used

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  • Alcohol-based gas stripping process
  • Alcohol-based gas stripping process
  • Alcohol-based gas stripping process

Examples

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Embodiment Construction

[0024] In one embodiment of the present invention, a method of stripping acid gases from an absorption medium and / or adsorption medium using alcohol is provided. Any suitable alcohol can be used in the present invention. For example, short chain alcohols such as C 1 -C 6 or C 1 -C 4 Alcohols can be used herein. Exemplary alcohols include methanol, ethanol, isopropanol, n-propanol, and combinations thereof.

[0025] While not intending to be bound by theory, it is believed that the present invention can perform stripping at lower temperatures than conventional stripping operations using steam due to the evaporation of the stripping solvent at lower temperatures. This saves energy and improves the efficiency of medium (absorbent and / or adsorbent) regeneration. Furthermore, due to the lower operating temperature, the present invention can use different materials in the construction of equipment for stripping operations. Such materials may, for example, be lighter and / or le...

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Abstract

The present disclosure relates to a method for stripping acid gases, exemplified by carbon dioxide, from absorption media and / or adsorption media using an alcohol selected from those having a boiling point lower than the boiling point of the absorption medium and / or adsorption medium.

Description

technical field [0001] The present invention relates to a method of stripping acid gases, such as carbon dioxide, from an absorption or adsorption medium. The present invention also relates to methods, uses and apparatus. Background technique [0002] Large-scale combustion methods are commonly used for municipal and industrial energy production, for the preparation of refined products from raw ores and other raw materials, and for the treatment of municipal and industrial waste. Such combustion processes typically continuously produce large volumes of combustion waste gas streams containing one or more undesired gaseous compounds including one or more acid gases such as carbon dioxide (CO 2 ), sulfur dioxide (SO 2 ) and nitrogen oxides (NO x ), which can cause serious environmental pollution and health threats. In particular, atmospheric CO 2 The increase in the concentration of is considered to be the primary cause of global warming. [0003] Methods of gas absorptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/96B01D53/14B01D53/52
CPCB01D2257/404B01D2257/504B01D2252/20447B01D2257/302B01D19/0015B01D53/1456Y02C10/06B01D2252/20489B01D2252/20484B01D2257/304B01D53/1425Y02C20/40B01D53/14B01D53/40B01D53/96
Inventor A·阿诺韦拉施A·韦瓦布
Owner UNIVERSITY OF REGINA