Chimney device for capturing and recovering CO2

Abstract

The invention discloses a chimney device for capturing and recovering CO2. The chimney device comprises a flue, and an alkali washing section and an absorption section which are arranged in the flue. The alkali washing section performs desulfurization and denitrification on flue gas by spraying alkali liquor. The alkali washing section comprises a liquid collecting tray, an alkali liquor outlet, a gas distributor and at least one alkali liquor spray head from bottom to top. The absorption section is arranged above the alkali washing section and absorbs CO2 in the flue gas by spraying barren liquor. The absorption section comprises a first gas rising cap liquid collector, a rich liquor outlet and a plurality of barren liquor spray heads from bottom to top. According to the chimney device for capturing and recycling CO2, the chimney structure of an existing factory is utilized, the alkali washing section and the absorption section are arranged in the flue of the chimney, the effects of a purification tower and an absorption tower arranged in a CO2 capturing process in the prior art are replaced, the investment cost and the maintenance cost of equipment are reduced, application and popularization of the CO2 capturing process are facilitated, and huge economic value is shown in actual industrial application.

Description

technical field [0001] The present invention relates to CO 2 in the field of capture, more specifically a capture and recovery of CO 2 chimney installation. Background technique [0002] Since the greenhouse effect has caused climate anomalies such as global warming, which has brought potential harm to human life on earth, it has been the focus of attention of the international community, including China, in recent years. Over the years, the United Nations has consistently called on all countries in the world to jointly control greenhouse gas emissions through solidarity and cooperation, and to accelerate the promotion of the United Nations Framework Convention on Climate Change. [0003] Reduce CO in the atmosphere 2 Content is a key measure to solve the greenhouse effect. CO 2 It is not only the chief culprit of the greenhouse effect, climate warming, and air pollution, but also an important industrial resource. At present, the capture, development and utilization of...

AI Technical Summary

Problems solved by technology

[0007] In order to solve CO 2 The capture process has the problem of high investment equipment cost and high equipment maintenance cost. The present invention provides a capture and recovery CO 2 The chimney device includes: a flue, and an alkali washing section and an absorption section arranged in the flue, wherein:

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