Unlock instant, AI-driven research and patent intelligence for your innovation.

Carbon dioxide adsorbent and preparation method thereof

A carbon dioxide and adsorbent technology, which is applied in the field of carbon dioxide adsorbent and its preparation, can solve the problems such as the decline of carbon dioxide absorption capacity, and achieve the effects of improving anti-sintering ability, improving stability, and increasing conversion efficiency

Inactive Publication Date: 2020-09-08
WUHAN UNIV OF TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, for the cyclic absorption of carbon dioxide using ordinary calcium adsorbents, the carbon dioxide absorption capacity of the calcium-based adsorbents in each carbonation reaction will be greatly reduced after multiple carbonation cycles.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon dioxide adsorbent and preparation method thereof
  • Carbon dioxide adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The present invention is described in detail below by means of drawings and examples.

[0024] The present embodiment provides a kind of preparation method of calcium-based adsorbent, comprising the following steps:

[0025] 1) At room temperature, 112g calcium gluconate (Ca(C 6 h 11 o 7 ) 2 •H 2 O) and magnesium nitrate 9.5g (Mg(NO 3 ) 2 ) into 50 mL of deionized water and mixed together at room temperature for 0.5 h.

[0026] In this embodiment, the precursor of calcium is calcium gluconate, but the present invention is not limited thereto. Other types of organic calcium precursors are appl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of a carbon dioxide adsorbent. The preparation method comprises the following steps: adding a calcium precursor and nitrate to deionized water, and mixing at room temperature to form a solution, wherein the molar ratio of calcium ions to cation magnesium ions in nitrate is (1-5): 1; stirring the prepared solution to form sol, and drying the sol to form gel; calcining the gel at the calcination temperature of 600-900 DEG C to obtain calcium-based adsorbent particles; and grinding the calcium-based adsorbent particles, and screening to obtain the powdery calcium-based carbon dioxide adsorbent. The calcium-based adsorbent particles prepared by the method have good cyclic carbon dioxide absorption capacity.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a carbon dioxide adsorbent and a preparation method thereof. The adsorbent can be applied to capture carbon dioxide in the flue gas of smelters, power stations and the like. Background technique [0002] The greenhouse gas carbon dioxide (CO 2 ) emissions are mainly due to various human behaviors, and the increase in emissions has also directly led to global warming. The world has paid special attention to greenhouse gas emission reduction since the 1990s. A series of international action frameworks Build gradually. Currently CO 2 capture and storage (CO 2 Capture and Storage (CCS) technology is considered to be one of the most promising emission reduction technologies. The relatively mature carbon dioxide capture technology can be roughly divided into two types: physical adsorption and chemical absorption. CO capture based on calcium cycle and magnesium cycle 2 technolog...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/62B01D53/81
CPCB01D53/62B01D53/81B01D2251/404B01D2251/602B01D2257/504
Inventor 吴汇哲陈奔
Owner WUHAN UNIV OF TECH