单选题:煤焦化是将炼焦煤在密闭的焦炉内隔绝空气高温加热,释放出水分和吸附气体,剩下以碳为主体的焦炭。下列不属于煤焦化工艺产品的是

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题目内容:
煤焦化是将炼焦煤在密闭的焦炉内隔绝空气高温加热,释放出水分和吸附气体,剩下以碳为主体的焦炭。下列不属于煤焦化工艺产品的是( )。 A.水冲渣
B.冶金焦
C.焦炉煤气
D.粗苯
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