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煤干馏装置上下层分别是什么

更新时间: 2020-10-22 00:00:00     

煤干馏装置上下层分别是大烧杯,U型管,酒精灯。煤干馏是煤化工的重要过程之一,指煤在隔绝空气条件下加热、分解,生成焦炭或半焦、煤焦油、粗苯、煤气等产物的过程,煤的干馏是属于化学变化。按加热终温的不同,可分为三种:900~1100℃为高温干馏,即焦化;700~900℃为中温干馏;500~600℃为低温干馏(见煤低温干馏)。

关键词: 装置 下层 别是 什么

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