Transformation of noncondensable gas recovery methanol in methanol distillation system
The 1.8 million t/a methanol distillation system of the first phase project of Shaanxi Yanchang zhongmei Yulin Energy and Chemical Co.,Ltd.,the noncondensable gas at the top of the stabilizer has a high carbon dioxide content,which cannot be sent to the downstream converter for combustion and discharged to the flare,resulting in increased methanol condensate content in the flare and methanol waste.By adding a desalination water washing tower,tail gas cooler,and liquid collection bag,the methanol in the noncondensable gas was washed,separated,and recovered,and sent back to the stabilizer for recycling,achieving good benefits.
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