CO2 mineralizing process

A carbon dioxide, mineralization technology, applied in the preparation of carbonate/acid carbonate, magnesium carbonate, calcium carbonate/strontium/barium, etc., can solve the problem that high-purity carbon dioxide has not been effectively solved, and achieve reserves Abundant, easy to mine, no environmental pollution
CN101020577AInactive Publication Date: 2007-08-22HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2007-08-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The CO2 mineralizing process includes the steps of: grinding silicate mineral of natural calcium and magnesium into powder, mixing with the mixed solution of sodium bicarbonate and sodium chloride or distilled water in a reaction kettle, filling CO2 gas to the reaction kettle to 3-12 MPa and reaction at 100-250 deg.c via stirring for 30-90 min to produce carbonate and realize the permanent storage of CO2. The present invention adopts rich natural silicate and can realize large scale CO2 treatment.
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Description

Technical field

[0001] The present invention relates to a method for mineralizing carbon dioxide, in particular to a method for directly reacting silicate minerals containing calcium and magnesium with carbon dioxide to generate carbonate minerals. Background technique

[0002] In the field of combustion source environmental pollution and prevention research, following many pollutants such as sulfur dioxide, nitrogen oxides, particulate matter, toxic trace elements, etc., the impact of the "greenhouse effect" of carbon dioxide on the human living environment has caused worldwide concern. extensive attention. The World Energy Agency has asserted that the carbon dioxide content in the atmosphere has the most direct impact on the earth's environment suitable for human habitation. The reality of global warming is constantly sounding the alarm to people around the world. The climate warming in the past 50 years is mainly due to the large amount of CO2 emitted by humans using fos...

Claims

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