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低温甲醇洗甲醇/水分离系统的模拟与改造

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Indexed by:期刊论文

Date of Publication:2011-02-25

Journal:大氮肥

Volume:34

Issue:1

Page Number:1-4

ISSN No.:1002-5782

Key Words:焦炉气;甲醇/水分离塔;杂醇

Abstract:阐述低温甲醇洗系统中甲醇/水分离系统在焦炉气合成氨工艺流程中,气体净化工段的现状,并提出改造方案.改造方案采用热再生塔一部分贫液作为甲醇/水分离塔的回流,甲醇/水分离塔塔顶甲醇蒸汽可以直接通往热再生塔作为汽提介质,并根据焦炉气组分复杂的特点,在甲醇/水分离塔适当位置侧线采出一部分杂醇.模拟结果表明.改造方案可较好的解决甲醇/水分离塔塔顶指标不合格的问题,减少杂醇积累并降低系统的热负荷.

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