发明名称 |
METHOD AND SYSTEM FOR CAPTURING CARBON DIOXIDE IN AN OXYFIRING PROCESS WHERE OXYGEN IS SUPPLIED BY REGENERABLE METAL OXIDE SORBENTS |
摘要 |
An oxyfiring system and method for capturing carbon dioxide in a combustion process is disclosed. The oxyfiring system comprises (a) an oxidation reactor for oxidizing a reduced metal oxide; (b) a decomposition reactor wherein a decomposition fuel is combusted and oxidized metal oxide sorbents are reduced with oxygen being released and a flue gas with an oxygen enriched carbon dioxide stream is produced; (c) a fuel combustion reactor for combusting a primary fuel and the oxygen enriched carbon dioxide stream into a primary flue gas; and (d) separation apparatus for separating a portion of the primary flue gas so that a carbon dioxide enriched stream can be prepared. The method comprises providing a primary fuel and an oxygen enriched carbon dioxide stream to a fuel combustion reactor. The primary fuel and oxygen enriched carbon dioxide stream are combusted into a primary flue gas stream which is split into a first flue gas portion and a second flue gas portion. The first flue gas portion is processed to produce a high purity carbon dioxide stream suitable for sequestration. The second flue gas portion is sent to the decomposition reactor to provide heat and serve as a fluid stream. The primary flue gas may include oxygen or else synthesis gas depending on whether the oxygen enriched carbon dioxide stream contains a stoichiometric excess or deficit of oxygen needed for complete combustion. |
申请公布号 |
WO2011066376(A3) |
申请公布日期 |
2011.10.13 |
申请号 |
WO2010US57988 |
申请日期 |
2010.11.24 |
申请人 |
CHEVRON U.S.A. INC.;JADHAV, RAJA, A. |
发明人 |
JADHAV, RAJA, A. |
分类号 |
B01D53/62 |
主分类号 |
B01D53/62 |
代理机构 |
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