Metal foam carrier CO2 adsorbent

Abstract

The invention relates to a metal foam carrier CO2 adsorbent. The metal foam carrier CO2 adsorbent comprises a hollow continuous skeleton, wherein the hollow continuous skeleton is made of metal foam, and CO2 adsorbents with a heat conductivity coefficient of 0.06 to 0.12 W/m.K grow or fill in holes in the metal foam. According to the metal foam carrier CO2 adsorbent, the CO2 adsorbent with low heat conductivity coefficient fills in the metal foam, and because the metal foam is a heat transfer medium with good heat-conducting property, the CO2 adsorbent disclosed by the invention adsorbs heat generated by CO2, so that the heat can be dissipated in time, and the CO2 adsorption capacity is increased, thereby overcoming the defect of low adsorption capacity and even adsorbent failure caused by the low heat conductivity coefficient of the CO2 adsorbent. In addition, because the specific surface area of the metal foam is large, more CO2 adsorbents can grow or fill in the limited volume, and therefore, the metal foam carrier CO2 adsorbent can efficiently adsorb CO2.

Description

technical field [0001] The present invention relates to a CO 2 Sorbent, especially relates to a metal foam carrier CO 2 Adsorbent. Background technique [0002] In the confined space of man and machine, due to reasons such as personnel breathing, mechanical equipment operation and material oxidation combustion, CO will be produced. 2 , while the concentration of CO 2 It will disturb the normal metabolism of the human body and even threaten the safety of personnel, so the development of high-efficiency CO 2 Adsorption is very important. [0003] It can be seen from the existing literature and patents that in physical adsorption, single materials such as zeolite and carbon nanorods are often used as adsorbents. Heat is released in this adsorption. According to the principle of equilibrium, it can be known that when the heat of adsorption is reduced or transferred in time, it is beneficial for more CO 2 Adsorbed on carbon nanorods. However, the existing patents and lite...

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Problems solved by technology

However, the existing patents and literatures do not consider the influence of heat on adsorption, and at the same time, they do not solve the problem that large-area carbon nanorods can adsorb CO in a limited volume. 2 question

[0004] Patent US2005040090-A1 and patent US2005040090-B1 respectively introduced the distribution of carbon nanorods in metal foam, which did not eliminate the influence of air resistance between carbon nanorods and metal foam on thermal conductivity, thus affecting the adsorption capacity, and did not make full use of the metal foam structure Features and characteristics of carbon nano-adsorption, using reasonable carbon nano-rod spatial arrangement, thus affecting the adsorption capacity

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