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" ... The process starts with natural gas (CH4), then reforms it with steam (H20) into a stream of hydrogen and carbon monoxide (H2 + CO), which are then chemically synthesized into methanol (CH3OH). Methanol is a simple alcohol that is a raw material for many chemicals and is even used in China as a fuel additive. The Mobil process further converts the methanol into gasoline, first by dehydrating it into a dimethyl ether (CH3OCH3 + H2O) then further dehydrating it over a zeolite catalyst, to yield gasoline. ... "
" ... The process starts with natural gas (CH4), then reforms it with steam (H20) into a stream of hydrogen and carbon monoxide (H2 + CO), which are then chemically synthesized into methanol (CH3OH). Methanol is a simple alcohol that is a raw material for many chemicals and is even used in China as a fuel additive. The Mobil process further converts the methanol into gasoline, first by dehydrating it into a dimethyl ether (CH3OCH3 + H2O) then further dehydrating it over a zeolite catalyst, to yield gasoline.The backend of the process, turning methanol into gasoline, is very energy intensive. Citing poor economics, Mobil in 1996 stopped gasoline production at the New Zealand plant, which continued to produce methanol. Primus's Boyajian says that they have figured out how to improve on the Mobil process to make it more energy efficient. ... "