Design and Economic Evaluation of Coal to Synthetic Natural Gas (SNG) Process

Abstract In this work, the steady state design and the economic evaluation for coal to Synthetic Natural Gas (SNG) process are rigorously studied. For those countries which lack energy resources, importing natural gas is very costly due to the requirement of liquefaction and compression. SNG holds very similar composition and heat value to typical natural gas, and can be used as a replacement directly in industrial and home usages. Thus, producing SNG from gasification route will be an attractive alternate for those countries which lack energy sources. From the simulation results, the plant-wide energy conversion efficiency is about 60.38%, and the SNG production cost is 11.433 (USD/MMBTU).

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