Carbon dioxide capturing agent and application thereof

A carbon dioxide and collector technology, applied in alkali metal oxides/hydroxides, reagents, inorganic chemistry, etc., can solve the problems of high cost, complex preparation process, low capture efficiency, etc., and achieve low cost, wide range of sources, The effect of simple and easy process

Active Publication Date: 2019-04-16
YANGTZE NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a carbon dioxide capture agent and its application, which solves the problems of high

Method used

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  • Carbon dioxide capturing agent and application thereof
  • Carbon dioxide capturing agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Preparation of carbon dioxide capture agent:

[0027] Select waste concrete from construction waste, use a small hammer crusher for primary crushing and control the output particle size to ≤10mm, put the waste concrete after primary crushing into a corundum crucible and put it into a box-type resistance furnace at different temperature systems Pre-burn at 500°C; take it out after the furnace temperature drops below 100°C, and then crush and separate it in an electromagnetic vibrating pulverizer after cooling to room temperature, and control the vibrating pulverization time to 3~ After shaking for 10 seconds, pour it into a 60-325-mesh square-hole sieve, and separate the coarse aggregate and fine powder in the waste concrete through sieving. The smaller waste concrete fine powder passes through the sieve holes to become the undersize, and the fine particles that pass through the sieve are collected to obtain the hardened gel.

[0028] Since the above-mentioned preparat...

Embodiment 2

[0034] 1) Preparation of carbon dioxide capture agent:

[0035] Select waste concrete from construction waste, use a small hammer crusher for primary crushing and control the output particle size to ≤10mm, put the waste concrete after primary crushing into a corundum crucible and put it into a box-type resistance furnace at different temperature systems Pre-burn at 600°C; take it out after the furnace temperature drops below 100°C, and crush and separate it in an electromagnetic vibrating pulverizer after cooling to room temperature, and control the vibrating pulverization time to 3 ~ After shaking for 10 seconds, pour it into a 60-325-mesh square-hole sieve, and separate the coarse aggregate and fine powder in the waste concrete through sieving. The smaller waste concrete fine powder passes through the sieve holes to become the undersize, and the fine particles that pass through the sieve are collected to obtain the hardened gel.

[0036] Since the above-mentioned preparatio...

Embodiment 3

[0044] 1) Preparation of carbon dioxide capture agent:

[0045] Select waste concrete from construction waste, use a small hammer crusher for primary crushing and control the output particle size to ≤10mm, put the waste concrete after primary crushing into a corundum crucible and put it into a box-type resistance furnace at different temperature systems Pre-burning at a temperature of 700°C; take it out after the furnace temperature drops below 100°C, and crush and separate it in an electromagnetic vibrating pulverizer after cooling to room temperature, and control the vibrating pulverization time to 3 ~ After shaking for 10 seconds, pour it into a 60-325-mesh square-hole sieve, and separate the coarse aggregate and fine powder in the waste concrete through sieving. The smaller waste concrete fine powder passes through the sieve holes to become the undersize, and the fine particles that pass through the sieve are collected to obtain the hardened gel.

[0046] Since the above-...

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PUM

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Abstract

The invention discloses a carbon dioxide capturing agent and application thereof. Waste concrete is taken as a raw material, after primary cutting, pre-burning and vibration smashing, after vibrationseparating, the waste concrete is sieved through a 60 mesh-325 mesh sieve, sieved subparticles are collected and subjected to grinding treatment, and the carbon dioxide capturing agent is obtained. The prepared CO2 capturing agent is high in speed of absorbing carbon dioxide, short in reaction time, simple in operation, high in technology adaptability and capable of being widely applied to wet ordry carbon capturing. According to the agent, the high added value of hardened gel and the utilization efficiency of waste concrete are improved, the new material with wide sources and low cost is provided for carbon dioxide capturing agents of industrial gas, and the green and environmentally friendly new material meeting the national related supporting policies is provided, can be used for capturing carbon dioxide in smoke of large-scale coal burning enterprises of electricity generation, metallurgy, cement and the like, and has significant social benefits, environment benefits and economicbenefits.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a carbon dioxide trapping agent and its application. Background technique [0002] with CO 2 The greenhouse effect caused by greenhouse gas emissions and the resulting global climate change have become global problems and have attracted extensive attention from governments. To reduce CO in the atmosphere 2 The concentration of CO produced by various industrial processes 2 Capture and storage is a technical means that is widely researched and widely used at present. Since the carbon dioxide in the atmosphere largely comes from the combustion process of fossil fuels, the technical routes to realize carbon dioxide capture can be mainly divided into post-combustion capture, pre-combustion capture and oxygen-enriched combustion capture. The carbon capture methods currently used mainly include absorption, adsorption, membrane separation and cryogenic distillation, etc. F...

Claims

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Application Information

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IPC IPC(8): B01J20/28B01J20/02B01J20/30B01D53/02C01B32/50
CPCB01D53/02B01J20/02B01J20/28057B01J20/28061B01J20/28064C01B32/50Y02P20/151Y02C20/40
Inventor 刘东升陈林沐周丽新余友清宋金峰
Owner YANGTZE NORMAL UNIVERSITY
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