Removal of carbon dioxide from air

A technology of air and chemicals, applied in the direction of air quality improvement, inorganic chemistry, carbon compounds, etc., can solve problems such as impossible to replenish absorbent materials

Inactive Publication Date: 2008-08-13
GLOBAL RES TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this device is that it is not possible to supplement the separation

Method used

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  • Removal of carbon dioxide from air
  • Removal of carbon dioxide from air
  • Removal of carbon dioxide from air

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Embodiment Construction

[0023] The present invention generally relates to the extraction, reduction, capture, treatment, sequestration or storage of carbon dioxide (CO 2 ), and including the reduction or elimination of CO from the environment 2 new methods and devices. CO 2 Both the extraction and isolation of are encompassed by the present invention.

[0024] In our earlier U.S. Patent Application Serial No. 60 / 603,811 we presented a strategy for bringing air into contact with absorbent coated surfaces. We indicate that due to the absorption of CO 2 With the slow reaction kinetics typical of hydroxide or carbonate solutions of , one should provide a straight path for laminar flow to make the CO 2 to maximize absorption. If liquid side reaction kinetics can be improved, more complex channels reduce air-side confinement, but for low reaction kinetics straight channels with smooth surfaces appear to be more effective.

[0025] The present invention provides in one aspect a solution for the absorp...

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Abstract

The present invention relates to a method for removing CO2 from air comprising exposing an absorbent-covered surface to air. The invention also provides means for exposing air to a CO2 absorbent. In another aspect, the present invention provides methods and apparatus for separating bound carbon dioxide (CO2) in absorbents.

Description

technical field [0001] The present invention relates to the removal of selected gases from air. The present invention is particularly suitable for extracting carbon dioxide (CO2) from air 2 ), the present invention will be described below in conjunction with this purpose, certainly other purposes can also be arranged. Background technique [0002] Extraction of carbon dioxide (CO) from ambient air 2 ), enabling the use of carbon-based fuels and dealing with the associated greenhouse gas emissions after the fact. Due to the CO content in parts per million 2 Neither toxic nor harmful, it creates an environmental concern by simply accumulating in the atmosphere, so CO needs to be removed from the air 2 , in order to compensate for emissions elsewhere and at different times. General schemes of air capture are well known. [0003] CO is produced in various industrial applications such as in coal-fired power plants and in the use of hydrocarbons, which are typically a major ...

Claims

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Application Information

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IPC IPC(8): B01D53/14C01B31/20C01B32/50
CPCY02A50/20Y02C20/40Y02P20/151Y02P90/70
Inventor A·B·赖特K·S·拉克纳E·J·彼得斯B·赖特M·沃伦U·金斯特
Owner GLOBAL RES TECH
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