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Trapping and pyrolysis method for carbon dioxide

A carbon dioxide and pyrolysis technology, applied in chemical instruments and methods, separation methods, inorganic chemistry, etc., can solve the problems of high energy consumption, high cost, uncertain long-term safety and reliability, etc. Concentration rate, the effect of reducing the greenhouse effect

Active Publication Date: 2013-05-01
浙江森井生物技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon dioxide capture utilization and storage technology is still in the research and development and demonstration stage at home and abroad, and is facing prominent problems such as high cost, high energy consumption, long-term safety and reliability uncertainty

Method used

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  • Trapping and pyrolysis method for carbon dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: A method for carbon dioxide capture and pyrolysis, comprising the following steps:

[0021] 1) Fully dissolve the sodium carbonate solution with the catalyst and the active agent to make a carbon dioxide absorbent solution, in which the catalyst is fully soluble humic acid with a content of more than 5%, or fully soluble fulvic acid; the active agent is a full-soluble humic acid with a content of more than 5%. Soluble biochemical amino acid; the weight ratio of catalyst and carbon dioxide consumption is 0.01%, the weight ratio of activator and carbon dioxide consumption: 0.01%; the carbon dioxide absorbent solution made is sent into the solution batching tank 13, and sent into the carbonization through the sodium carbonate solution pump 14 Tower 2 is sprayed downwards by sodium carbonate dissolving nozzle 15;

[0022] 2) The temperature of the carbonization tower 2 is controlled at 60°C, and the flue gas is sent into the carbonization tower 2 from the flue...

Embodiment 2

[0041] Embodiment 2: a method for carbon dioxide capture and pyrolysis, comprising the following steps:

[0042] 1) Fully dissolve the sodium carbonate solution with the catalyst and the active agent to make a carbon dioxide absorbent solution, in which the catalyst is fully soluble humic acid with a content of more than 5%, or fully soluble fulvic acid; the active agent is a full-soluble humic acid with a content of more than 5%. Soluble biochemical amino acid; the weight ratio of catalyst and carbon dioxide consumption is 0.5%, the weight ratio of activator and carbon dioxide consumption: 0.5%; the carbon dioxide absorber solution that makes is sent into solution batching tank 13, sends into carbonization through sodium carbonate solution pump 14 Tower 2 is sprayed downwards by sodium carbonate dissolving nozzle 15;

[0043] 2) The temperature of the carbonization tower 2 is controlled at 60-70°C, the flue gas is sent into the carbonization tower 2 from the flue gas inlet 1,...

Embodiment 3

[0062] Embodiment 3: a method for carbon dioxide capture and pyrolysis, comprising the following steps:

[0063] 1) Fully dissolve the sodium carbonate solution with the catalyst and the active agent to make a carbon dioxide absorbent solution, in which the catalyst is fully soluble humic acid with a content of more than 5%, or fully soluble fulvic acid; the active agent is a full-soluble humic acid with a content of more than 5%. Soluble biochemical amino acid; the weight ratio of catalyst and carbon dioxide consumption is 0.3%, the weight ratio of activator and carbon dioxide consumption: 0.3%; the carbon dioxide absorbent solution that makes is sent into solution batching tank 13, is sent into carbonization through sodium carbonate solution pump 14 Tower 2 is sprayed downwards by sodium carbonate dissolving nozzle 15;

[0064] 2) The temperature of the carbonization tower 2 is controlled at 66°C, the flue gas is sent into the carbonization tower 2 from the flue gas inlet 1,...

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Abstract

The invention relates to the field of emission reduction and conversion of carbon dioxide, in particular to a trapping and pyrolysis method for carbon dioxide. The carbon dioxide in smoke is converted into a sodium bicarbonate solution by a sodium carbonate solution in a carbonizer, and a pyrolyzer resolves high-purity carbon dioxide quickly. The pollution due to excessive carbon dioxide generated when fossil fuel is burnt is avoided, and energy conservation, environmental protection, energy crisis reduction and greenhouse effect reduction are realized. The method has the benefits that (1) the trapping rate of the carbon dioxide is significantly increased by the synergistic action of sodium carbonate, a catalyst and an activating agent; (2) the solution decomposes the carbon dioxide quickly, and the dissociation cost is lowered; and (3) the equipment investment is low, a large amount of carbon dioxide can be trapped and pyrolyzed, near zero release of the carbon dioxide can be realized, and the method is suitable for key coal-consumption industries of coal power, coal chemistry, steel, cement, papermaking, metallurgy, printing and dyeing, chemical engineering and the like to trap, recover and apply carbon dioxide resources on a large scale, and reduces the greenhouse effect.

Description

technical field [0001] The invention relates to the fields of carbon dioxide emission reduction and carbon dioxide conversion, in particular to a method for capturing and pyrolyzing carbon dioxide. Background technique [0002] Fossil fuels are one of the main energy sources in the world. The complete combustion of fossil fuels and organic compounds produces carbon dioxide, which is emitted into the atmosphere. In recent years, people have determined through research that carbon dioxide is the culprit of the greenhouse effect and the main factor leading to abnormal changes in the world's climate. If timely and effective measures are not taken, the global temperature will rise by 1.5-3.5 degrees within a century, and the polar glaciers will melt in large areas. The survival of many species will also be affected or even disappear. Therefore, the emission reduction and conversion of carbon dioxide has become a hot research topic in current science. Carbon capture and storage t...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/62C01B31/20C01B32/50
CPCY02C10/04Y02A50/20Y02C20/40Y02P20/151
Inventor 程礼华沈宏良应惟白
Owner 浙江森井生物技术股份有限公司
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