煤气可以从煤炭中提制。
毕竟那些可以从煤炭中或烟道气体中滤除的其他污染物质本身就是杂质。
Other pollutants, after all, are essentially impurities, which can be washed from the coal or filtered out of the flue gas.
太原市三兴煤炭气化有限公司始建于1988年，从煤炭发运、型煤制品开始起步。
The coal gasification taiyuan co., LTD was founded in 1988, coal, coal shipments from the start products.
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