Temperature swing adsorption carbon-capturing system utilizing microwave heating to assist in desorption process

Abstract

The invention discloses a temperature swing adsorption carbon-capturing system utilizing microwave heating to assist in desorption process. The temperature swing adsorption carbon-capturing system comprises a temperature swing adsorption carbon-capturing unit, a microwave desorption unit and a cooling unit, wherein the carbon-capturing unit comprises an air compressor, two electric control valves,two adsorption towers and one four-way reversing valve; the microwave desorption unit comprises microwave heating devices respectively arranged on the two adsorption towers; the two adsorption towersare each wrapped with a heat-insulation layer; the cooling unit is composed of a cooling tower, a water pump and an electric-control three-way valve; and the microwave desorption unit provides the temperature swing adsorption carbon-capturing unit with heat required in the desorption process and has the advantages of high heating speed and high energy utilization rate. The system of the inventionhas an adsorption temperature of 20-35 DEG C and a desorption temperature of 110-130 DEG C, and ensures the maximum adsorption capacity of zeolite 13X; and the circulation mode of two or more reaction towers is utilized, so the continuity of the process of temperature swing adsorption carbon capturing can be ensured, the capturing rate of carbon dioxide is increased, and industrial production isfacilitated.

Description

technical field [0001] The invention relates to the technical field of microwave-assisted desorption carbon capture, in particular to a temperature-swing adsorption carbon capture system in a microwave heating-assisted desorption process. Background technique [0002] According to the National Oceanic and Atmospheric Administration's Mauna Loa Greenhouse Gas Monitoring Station in Hawaii, the average concentration of carbon dioxide in the atmosphere reached 403.38ppm in September 2017, an increase of 2.35ppm from the average concentration in the same period last year. Despite increasing regulations and guidelines related to burning fossil fuels, and the rapid development of low-carbon technologies including solar and wind power, the concentration of carbon dioxide in the atmosphere is still rising at an alarming rate. A new report by the United Nations shows that global carbon emissions reached the highest level in nearly three million years last year. In order to alleviate ...

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Problems solved by technology

Although these patents are optimized at the equipment level, they still do not solve the problems of high energy consumption, long desorption time and low efficiency in the conventional adsorption process.

[0007] Based on the above, the existing patents cannot solve the inherent problems of the current carbon capture and adsorption process, that is, the problems of high energy consumption, slow rate and low cycle rate in the desorption process

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