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Foam carbon-based solid amine adsorbent as well as preparation method and application thereof

A foam carbon and solid amine technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of inability to capture carbon dioxide efficiently and cannot be effectively loaded, and achieve excellent carbon dioxide adsorption performance and regeneration capacity, increase Kinetic barrier, effect of mass transfer rate enhancement

Pending Publication Date: 2021-12-21
河北中煤旭阳能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a method for preparing a foamed carbon-based solid amine adsorbent, so as to alleviate the problems that the existing solid amine adsorbent amine cannot be effectively loaded on the porous matrix material and cannot efficiently capture carbon dioxide

Method used

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  • Foam carbon-based solid amine adsorbent as well as preparation method and application thereof
  • Foam carbon-based solid amine adsorbent as well as preparation method and application thereof
  • Foam carbon-based solid amine adsorbent as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0098] A method of preparation of a foam-based solid anamine adsorbent, including the following steps:

[0099] 1. Put 100 g of coal mirror enrichment (CV) in a metal mold, injected into 50 ml of toluene, and then place the metal mold in a high pressure reactor. Torn at 5 ° C / min to 480 ° C. Maintaining the final foaming pressure of 8 MPa is constant, and the constant temperature is 60 min under the supercritical conditions of toluene. After the constant temperature, it is discharged to normal pressure at a speed of 4 MPa / min, and the air valve is turned off, and the temperature is warmed to 550 ° C, temperature is 20 min, naturally cooling to room temperature to obtain primary coal base foam. The primary coal-based foam carbon is transferred to the tube furnace for carbonization treatment, under the protection of high purity nitrogen, temperature above 1000 ° C, constant temperature 120min, then naturally cooling to room temperature to obtain coal-based foam (CVCF) ), Porous ...

Embodiment 2

[0104] A method of preparation of a foam-based solid anamine adsorbent, including the following steps:

[0105] 1. Put 100 g of gas coal mirror enrichment (GV) into a metal mold, and 100 ml of toluene is injected, and then the metal mold is placed in a high pressure reactor. Torn at 5 ° C / min to 480 ° C. Maintaining the final foaming pressure of 8 MPa is constant, and the constant temperature is 60 min under the supercritical conditions of toluene. After the constant temperature, it is discharged to normal pressure at a speed of 4 MPa / min, and the air valve is turned off, and the temperature is warmed to 550 ° C, temperature is 20 min, naturally cooling to room temperature to obtain primary coal base foam. The primary coal-based foam carbon is transferred to the tube furnace for carbonization treatment, under the protection of high purity nitrogen, temperature above 1000 ° C, temperature temperature 120min, then naturally cooling to room temperature to obtain coal-based foam (...

Embodiment 3

[0110] A method of preparation of a foam-based solid anamine adsorbent, including the following steps:

[0111] 1. Mix 50 g of gas coal mirror enrichment (GV) and 50 g of coal mirror group enrichment (CV) is mixed into the metal mold, inject 100 ml of toluene, then place the metal mold in the high pressure reactor middle. Torn at 5 ° C / min to 480 ° C. Maintaining the final foaming pressure of 8 MPa is constant, and the constant temperature is 60 min under the supercritical conditions of toluene. After the constant temperature, it is discharged to normal pressure at a speed of 4 MPa / min, and the air valve is turned off, and the temperature is warmed to 550 ° C, temperature is 20 min, naturally cooling to room temperature to obtain primary coal base foam. The primary coal-based foam carbon is transferred to the tube furnace for carbonization treatment, under the protection of high purity nitrogen, temperature above 1000 ° C, temperature temperature 120min, then naturally cooling...

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Abstract

The invention provides a foam carbon-based solid amine adsorbent and a preparation method and application thereof, and relates to the technical field of gas trapping materials. The method comprises the following steps that vitrinite enriched products with different coalification degrees serve as precursors, primary coal-based foam carbon is prepared through the supercritical foaming technology, the coal-based foam carbon is obtained after carbonization, activation heat treatment is conducted to obtain a coal-based foam carbon carrier with a graded porous structure, and amine functionalization is conducted to obtain the solid adsorbent. The adsorbent has the advantages that the raw materials are wide in source and suitable for industrial production, and the carrier with the hierarchical porous structure can effectively load organic amine. When the solid adsorbent is used for capturing carbon dioxide, the operation is simple, the corrosion to equipment is small, and excellent carbon dioxide adsorption performance and regeneration capacity are shown.

Description

Technical field [0001] The present invention relates to the technical field of gas trapping materials, and more particularly to a foam-based solid-actin carbon dioxide adsorbent and a preparation method thereof. Background technique [0002] The continuous increase in greenhouse gas concentration in the atmosphere caused unprecedented attention to global warming, global warming may lead to a series of disasters, such as the breeding and spread of tropical diseases, land degradation, floods and species extinction. In addition, carbon dioxide released during the combustion of fossil fuel and its derivatives has become one of the most important greenhouse gases. Therefore, effective capture and separation of carbon dioxide has become a primary task that is effective to warming around the world. Capturing carbon dioxide from fossil fuel is a direct solution to reducing carbon dioxide emissions. In the past decade, many advanced carbon dioxide capture and storage methods have been dev...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30B01J20/32B01D53/04B01D53/30
CPCB01J20/22B01J20/28066B01J20/3078B01J20/3204B01D53/0407B01D53/30B01D2253/25B01D2257/504Y02C20/40
Inventor 金文武张青青庞伟伟尹天长于守立张晓柱闫晓宇杨普玉尹波冯世昌李润芳
Owner 河北中煤旭阳能源有限公司
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