This study was able to perform simulation of the DME synthesis
reaction from coal syngas by applying a kinetics model under
the environment of ASEPN plus. A modified DME synthesis model
based on kinetics parameters has approximate operating values
through validating by experimental data of a DME synthesis pilot
plant. So operating conditions of DME synthesis are able to be predicted
by sensitivity analysis of the DME synthesis model for various
operating variables. According to sensitivity analysis, optimal
operating conditions of DME synthesis from coal syngas are proposed
to operate at 60-65 kg/cm2 of pressure, 265-270 oC of temperature,
0.15-0.35 of void fraction and 1.0-1.5 of H2/CO ratio. Comparing
DME synthesis controlled by reaction (5) with reaction (6)
for DME synthesis, its production rate is approximately similar.
ACKNOWLEDGMENT
The research is the outcome of the fostering project of the Best
Lab in the area of IGCC supported financially by the Ministry of
Knowledge Economy (MKE).