High active calcium-base CO2 absorbent and its preparing method

An absorbent and high-activity technology, which is applied in separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as activity decline, carbon dioxide absorption capacity reduction, and obstacles to large-scale application of technology, and achieve stable and high reactivity. The effect of carbon dioxide absorption capacity
CN1676210AInactive Publication Date: 2005-10-05TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2005-10-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a high-activity calcium base CO2 obsorbent and its preparation method. The described method uses alcohols, distilled water, aluminium salt and calcium oxide as raw material, and includes the following steps: calcining for 1-4 hr. at 800-1000 deg.C, adding alcohols and distilled water, calcining dried sample for 3 hr, at 500-700 deg.C, grinding, more adding distilled water, drying, calcining dried sample for 1-3 hr, at 700-1000 deg.C, fine grinding so as to obtain the invented high-activity calcium base CO2 absorbent.
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Description

technical field

[0001] The invention relates to a highly active calcium-based CO 2 Absorbent (CaO / Ca 12 Al 14 o 33 ) and a preparation method thereof, which belong to the technical field of solid absorbent for absorbing gas. It can be used as a carbon dioxide absorbent in the steam methane reforming hydrogen production process to improve hydrogen purity, methane conversion rate and overall system efficiency; 2 The acceptor method has a wide range of application prospects in the hydrogen production process of near-zero emission carbon-based fuels; it is also suitable for the greenhouse gas CO in various industrial exhaust gases 2 Separation process; can also be used as CO 2 Highly active reactive substances for chemical heat pumps with mobile working fluids. Background technique

[0002] At present, among all possible hydrogen production technologies, natural gas steam reforming is the most mature. In 2002, 48% of the world's hydrogen production was provided by the natu...

Claims

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