Production process for removing carbon dioxide from smoke and preparing ammonium compound fertilizer and light calcium carbonate

Abstract

The invention relates to a production process for removing carbon dioxide from smoke and preparing ammonium compound fertilizer and light calcium carbonate. The process comprises the following steps of: performing gas-liquid two-phase high strength mass transfer absorption reaction on the primary smoke through a super-gravity field absorption tower by using dilute aqueous ammonia as an absorbent to remove carbon, discharging the treated smoke through a chimney, and performing further reaction treatment on byproducts of the carbon removal reaction to obtain the ammonium compound fertilizer and the light calcium carbonate with good economic values. The whole set of reaction and separation device for supporting the process comprises the super-gravity field absorption tower, a static mixer 19, a deep reaction tank 20, a cyclone 24, an ammonium compound fertilizer reclaiming system 26, a light calcium carbonate reclaiming system 28, various pumps and the like, wherein the super-gravity field absorption tower is used at a chemical reaction absorption section for removing the carbon dioxide. The brand-new process has the advantages of high efficiency, low investment and low running expense.

Description

technical field [0001] The invention relates to a production process for removing carbon dioxide from flue gas and preparing various ammonium compound fertilizers and light calcium carbonate. Background technique [0002] Since carbon dioxide is the main gas that causes the "greenhouse effect", problems such as the intensification of the greenhouse effect pose severe challenges to the sustainable development of the environment and economy. Therefore, the reduction technology of carbon dioxide in the flue gas that causes the greenhouse effect and global climate change has become the focus of all countries. focus. However, most of the current research is mainly on how to separate and concentrate carbon dioxide, and then store it, which has not achieved the purpose of truly removing carbon dioxide, and there are still disadvantages such as high construction costs and high operating costs. Therefore, research and development of a process technology and equipment with simple pro...

AI Technical Summary

Problems solved by technology

However, most of the current research is mainly on how to separate and concentrate carbon dioxide, and then store it, which has not achieved the purpose of truly removing carbon dioxide, and there are still disadvantages such as high construction costs and high operating costs.

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