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.
Other Database Pages Exist for this Phrase:
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 ...)