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Title:
METHANOL TO OLEFINS PROCESS
Document Type and Number:
WIPO Patent Application WO/2012/129194
Kind Code:
A3
Abstract:
A process for chilling ethylene to required storage temperatures is disclosed, the process including: cooling an ethylene product from at least one of an ethylene production process and an ethylene recovery process via indirect heat exchange with a coolant at a temperature less than about -100°C to decrease the temperature of the ethylene product; mixing a portion of the cooled ethylene product with methane to form the coolant; expanding at least one of the coolant, the methane, and the portion of the cooled ethylene to reduce a temperature of the coolant to less than -100°C prior to the cooling; and feeding the heat exchanged coolant to at least one of the ethylene production process, the ethylene recovery process, and an open-loop refrigeration system.

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Inventors:
DE HAAN STEPHEN (US)
Application Number:
PCT/US2012/029727
Publication Date:
December 27, 2012
Filing Date:
March 20, 2012
Export Citation:
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Assignee:
LUMMUS TECHNOLOGY INC (US)
DE HAAN STEPHEN (US)
International Classes:
C07B61/00; B01J10/00; C07C1/20; C07C11/04
Foreign References:
US4167402A1979-09-11
US20060058564A12006-03-16
US20040116757A12004-06-17
EP0088494A11983-09-14
EP0060103A11982-09-15
Attorney, Agent or Firm:
BERGMAN, Jeffrey, S. et al. (909 Fannin Street Suite 350, Houston TX, US)
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