发明名称 |
PROCESS FOR RECOVERING PARAXYLENE UTILIZING AMMONIA ABSORPTION REFRIGERATION |
摘要 |
A process for recovering paraxylene from a substantially hydrocarbon feedstock. The recovery comprises cooling the hydrocarbon feedstock in at least one refrigerated crystallization stage that is indirectly refrigerated by evaporating at least a portion of a substantially liquid stream comprising ammonia. The crystallization stage may also be cooled by an ethylene refrigerant, which has been cooled by heat exchange with a substantially liquid stream comprising ammonia. The process further comprises a series of cooling substeps. This invention is also directed to an ammonia absorption refrigeration process powered by an enthalpy to source from or near a paraxylene recovery unit.
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申请公布号 |
WO2005100287(A8) |
申请公布日期 |
2006.01.26 |
申请号 |
WO2005US09372 |
申请日期 |
2005.03.22 |
申请人 |
BP CORPORATION NORTH AMERICA INC.;AMELSE, JEFFREY, A. |
发明人 |
AMELSE, JEFFREY, A. |
分类号 |
B01D9/00;C07C7/14;(IPC1-7):C07C7/14;C07C15/08 |
主分类号 |
B01D9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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