Simulation and Optimization of an innovative Dual Mixed Component Refrigerant Cycle (DMRC) for Natural Gas Off
Shore Liquefaction Plants
Prepared By
LAMIAA.A.SHAHBA
EGYPTIAN GAS HOLDING COMPANY
Dr,M.F.M.Fahmy
Faculty of Engineering, Cairo University
Abstract
Simulation and optimization of an innovative liquefaction process used for
the LNG production , namely the Dual Mixed Refrigerant Process
(DMRC) has been conducted using the HYSYS simulator .This new
process is especially suitable for off shore natural gas liquefaction plants.
A numerical optimization technique has been used to determine the
optimum conditions for Egyptian natural gas feed source. The
investigation of the effect of different compositions of the Mixed
refrigerants used was conducted. Meanwhile, the investigation of the
influence of the temperature of cooling water used was conducted. The
best optimum conditions for the DMRC process were determined .The
optimum results achieved for the DMRC process revealed that the DMRC
process can be successfully applied as a promising technique for off shore
natural gas liquefaction plants.

Simulation and Optimization of an Innovative Dual Mixed Comp