本文提出了一个新型的焦炭和甲醇/动力多联产系统,新系统在焦炉子系统中采用煤炭燃烧替代焦炉煤气燃烧;在合成气制备过程采用焦炉煤气与气化煤气共制合成气,取消了重整反应和变换反应;在合成单元中采用了部分未反应气再循环方式.新型联产系统具有较高的热力性能,系统节能率高达22%.对新系统的(火用)分析结果表明:采用煤炭燃烧替代焦炉煤气燃烧,取消重整单元,以及合成煤气与焦炉煤气共制合成气是系统性能提升的关键所在.总之,新系统进一步拓展了煤基多联产,将为洁净煤技术指引一个新的方向.
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