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1. (WO2018122662) ETHYLENE PLANT REFRIGERATION SYSTEM

Pub. No.:    WO/2018/122662    International Application No.:    PCT/IB2017/057970
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 15 00:59:59 CET 2017
IPC: F25J 3/02
Applicants: SABIC GLOBAL TECHNOLOGIES B.V.
Inventors: VAN WILLIGENBURG, Joris
Title: ETHYLENE PLANT REFRIGERATION SYSTEM
Abstract:
A refrigeration system for cooling a charge gas by a binary refrigerant. The refrigeration system comprises n heat exchangers, n compressor stages, at least one separator and a demethanizer. By flowing depressurized refrigerant through all the subsequent heat exchangers and installing interstage coolers, the overall energy for the refrigeration system is reduced.