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Carbon dioxide sequestration materials and processes

A carbon dioxide and calcium oxide technology, applied in separation methods, chemical instruments and methods, through chemical separation, etc., can solve problems such as small throughput capacity, low removal efficiency, high capital investment and operating costs

Active Publication Date: 2009-04-01
C QUEST TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Each of the above methods has disadvantages, including high capital investment and operating expenses, and in some cases relatively small throughput capacity and low removal efficiency

Method used

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  • Carbon dioxide sequestration materials and processes
  • Carbon dioxide sequestration materials and processes
  • Carbon dioxide sequestration materials and processes

Examples

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Embodiment Construction

[0021] The following description is merely exemplary in nature and is not intended to limit the invention, application or use. It should be understood that like numerals indicate like or corresponding parts and features throughout the drawings.

[0022] The teachings of the present invention provide, in various aspects, methods for reducing the gaseous carbon dioxide content of a fluid stream by separating or scrubbing carbon dioxide from the gaseous fluid stream. In certain embodiments, the fluid stream comprises gas and / or water vapor, but may also contain solids and / or liquids, eg, particles, droplets and / or aerosols. In various embodiments, the fluid stream is a waste stream or effluent stream generated in an industrial process. The fluid stream is contacted with a carbon dioxide scrubbing or separation material to remove carbon dioxide. The carbon dioxide content of the fluid stream is reduced after contact with the scrubbing material. In certain embodiments, carbon di...

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Abstract

The disclosure provides methods and systems for sequestering and / or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and / or cement kilns, iron and / or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.

Description

technical field [0001] The present invention relates to methods of abatement of emissions, and more particularly to methods of separating carbon dioxide from fluid streams containing carbon dioxide. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Global climate change (ie, global warming) is believed to be caused by anthropogenic emissions of greenhouse gases. Models of the effects of global warming foresee global increases in temperature and sea levels, changes in weather patterns, and more extreme weather phenomena, including floods and droughts. Greenhouse gases include carbon dioxide, methane, nitrous oxide, water vapor, ozone and perfluorocarbons / chlorofluorocarbons. It is estimated that carbon dioxide constituted approximately 84% of US greenhouse gas emissions in 2000. carbon dioxide (CO 2 ) and other harmful air pollutants are highly cor...

Claims

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Application Information

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IPC IPC(8): B01D53/62B01J10/00C01F11/02C01F11/18C04B2/00C04B7/00C09K3/00
CPCB01D2257/504B01D53/62C04B7/367Y02C10/04Y02C10/06B01D2258/0233B01D2251/404Y02C20/10B01D2258/0283B01D53/77Y02P40/18Y02C20/40
Inventor 道格拉斯·C·科姆里
Owner C QUEST TECH
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