Title:
PROCESS FOR RECOVERING PARAXYLENE UTILIZING AMMONIA ABSORPTION REFRIGERATION
Document Type and Number:
WIPO Patent Application WO2005100287
Kind Code:
A8
Abstract:
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.
Inventors:
AMELSE JEFFREY A (US)
Application Number:
PCT/US2005/009372
Publication Date:
January 26, 2006
Filing Date:
March 22, 2005
Export Citation:
Assignee:
BP CORP NORTH AMERICA INC (US)
AMELSE JEFFREY A (US)
AMELSE JEFFREY A (US)
International Classes:
B01D9/00; C07C7/14; (IPC1-7): C07C7/14; B01D9/00; C07C15/08
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