Skid-mounted carbon dioxide gas absorption method and apparatus applicable to offshore platform

A carbon dioxide and ocean platform technology, which is applied in chemical instruments and methods, separation methods, air quality improvement, etc., can solve the problems that are difficult to adapt to the application of ocean platforms, and achieve the effect of small size of main equipment, reduced volume and simple process

Inactive Publication Date: 2017-01-18
北京化工大学苏州(相城)研究院 +2
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Problems solved by technology

For example, several patent applications previously filed by the research team of the inventor of this case involved this technology, such as ZL200810103231. application

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  • Skid-mounted carbon dioxide gas absorption method and apparatus applicable to offshore platform
  • Skid-mounted carbon dioxide gas absorption method and apparatus applicable to offshore platform

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[0028] In order to make the technical solution of the present invention easier to understand, the present invention will be explained more specifically in conjunction with the accompanying drawings and embodiments as follows.

[0029] The present invention provides a method of using high-gravity equipment, such as a high-gravity rotating bed as a reactor, high-pressure physical absorption liquid absorption, low-pressure analysis, removal and separation of carbon dioxide in the mixed gas, which effectively simplifies the decarburization process and reduces production costs , can be used for gas purification and greenhouse gas emission reduction, especially for the separation of carbon dioxide in natural gas, oilfield associated gas and process industry tail gas, and the device used can be integrated into a skid, especially suitable for seawater platforms, limited space, etc. The application in various occasions can produce significant economic and environmental benefits in the f...

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Abstract

The invention provides a skid-mounted carbon dioxide gas absorption method and apparatus applicable to an offshore platform. The method comprises the following steps: conveying high-pressure gas (feed gas) with high carbon dioxide content and a barren decarburization solution (a barren solution) into a hypergravity absorption machine and allowing the barren solution to absorb CO2 in the feed gas to form a rich decarburization solution ( a rich solution) so as to realize purification of the feed gas; and allowing the rich solution to enter a desorption tower after flash evaporation and pressure reduction so as to realize release of CO2 and regeneration into a barren solution, allowing CO2 to enter a post-treatment system after treatment by a gas-liquid separator and re-inputting the regenerated barren solution into the hypergravity absorption machine for cyclic utilization. The hypergravity absorption machine and the like are integrally arranged to form a detachable skid-mounted integrated system. The apparatus provided by the invention employs a skid-mounting design, and is small in size, light in weight and applicable to space-limited occasions like an offshore platform; and through a combination of the method and the apparatus provided by the invention, CO2 in feed gas like natural gas and oilfield associated gas can be highly and environment-friendlily removed at low cost, low consumption and low discharge, and rational utilization of resources is realized.

Description

technical field [0001] The invention relates to a method for removing carbon dioxide, in particular to a skid-mounted method and device for absorbing carbon dioxide gas suitable for offshore platforms. Background technique [0002] The capture, utilization and storage of carbon dioxide is a hot research topic in the international community today. Carbon dioxide in natural gas, oilfield associated gas, and process industry tail gas is the main source of carbon dioxide. The removal of carbon dioxide in these gas sources can achieve the following goals: one is to reduce greenhouse gas emissions; the other is to recover CO 2 The third is to prevent carbon dioxide from corroding and clogging pipelines and poisoning catalysts in subsequent processes according to the needs of the process. [0003] Carbon dioxide removal and capture methods include absorption, pressure swing adsorption, membrane separation and cryogenic fractionation. Among them, the absorption method is the meth...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01D53/18B01D53/24
CPCY02A50/20Y02C20/40
Inventor 高立东陈建峰赵宏向良玉吴菲张大锴
Owner 北京化工大学苏州(相城)研究院
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