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Researches on methyl tertiary butyl ether(MTBE) distillation desulfurization process are very common now, but the influence of the separation of tertiary butyl alcohol(TBA) in MTBE on this process was seldom reported. This paper analyzes the 2-column MTBE distillation desulfurization process in detail by using the PRO/II simulation software. The best sulfides content in MTBE and more suitable operating parameters of the second column which carries on TBA separation have been determined exactly. It suggested that the best sulfides content index value in MTBE be 10mg/kg. The optimal MTBE distillation desulfurization process can make the recovery of TBA up to 99% by weight and remain the sulfides content index value in MTBE at the level of 10mg/kg steadily.

The separation of tertiary butyl alcohol in methyl tertiary butyl ether distillation desulfurization process