发明名称 |
Method of recovering carbon dioxide and recovery apparatus |
摘要 |
A recovery apparatus of carbon dioxide includes: an absorption column contacting a carbon dioxide-containing gas into contact with an absorbing liquid and allowing the absorbing liquid to absorb carbon dioxide; a regeneration column for regenerating the absorbing liquid to release carbon dioxide; a circulation system which circulates the absorbing liquid to flow from the absorption column and return to the absorption column through the regeneration column; and a steam supply system which generates steam available for a heat source that regenerates the absorbing liquid, using the absorbing liquid that returns to the absorption column and/or the absorbing liquid in the absorption column, and supplies the steam to the regeneration column. High temperature steam is generated from the absorbing liquid and is provided to the regeneration column to use as a heat source for regenerating the absorbing liquid. |
申请公布号 |
US9375676(B2) |
申请公布日期 |
2016.06.28 |
申请号 |
US201213981387 |
申请日期 |
2012.01.17 |
申请人 |
IHI Corporation |
发明人 |
Nakamura Shiko;Muramoto Tomoya;Nishiyama Yuichi;Okuno Shinya |
分类号 |
B01D53/14 |
主分类号 |
B01D53/14 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. A recovery apparatus of carbon dioxide comprising:
an absorption column configured to bring a gas containing carbon dioxide into contact with an absorbing liquid and to allow the absorbing liquid to absorb carbon dioxide; a regeneration column for regenerating the absorbing liquid, configured to cause the absorbing liquid having carbon dioxide absorbed in the absorption column to release carbon dioxide by heat; a circulation system configured to circulate the absorbing liquid in such a manner that the absorbing liquid flows from the absorption column and returns to the absorption column through the regeneration column, the circulation system comprising a heat a exchanger configured to perform heat exchange between the absorbing liquid supplied from the absorption column to the regeneration column and the absorbing liquid that returns from the regeneration column to the absorption column thereby the absorbing liquid supplied from the absorption column is heated and the obsorbing liquid that returns from the regeneration column is cooled; and a steam supply system configured to supply to the regeneration column steam available for a heat source that regenerates the absorbing liquid, the steam supply system comprising: a steam generator configured to generate steam, using the absorbing liquid that has passed heat exchange by the heat exchanger and returns to the absorption column by the circulation system; and a compression device configured to compress the generated steam to raise a temperature of the steam to be higher than a regeneration temperature of the absorbing liquid. |
地址 |
Tokyo JP |