The basic process involves crushing coal to a powder, which is then heated in the presence of steam and oxygen to produce a gas. The gas is then refined to reduce sulfur and other impurities. The gas can be used as a fuel or processed further and concentrated into chemical or liquid fuel.
Ref: 122759/2006-10-01
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Coal (Coal is formed from plant and animal matter that ...)
Coal gas (Coal gas refers to substitute natural gas ...)
Process (Process means the preparation of a substance, ...)
Coal (Coal refers to a combustible black or brownish ...)
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