丙烯产品中甲醇含量高的原因及处理方法

乙烯工业 ›› 2022, Vol. 34 ›› Issue (4): 26-29.

丙烯产品中甲醇含量高的原因及处理方法

刘源波，雷伟伟，张锋刚

中国石油四川石化有限责任公司，四川成都 611930

收稿日期:2021-11-21 修回日期:2022-08-05 出版日期:2022-12-25 发布日期:2022-12-29
作者简介:刘源波，男，2010年毕业于四川大学高分子材料学专业，工学博士，主要从事石油化工管理工作，现任生产四部部长，高级工程师。

Causes and Treatment of High Methanol Content of Propylene Products

Liu Yuanbo, Lei Weiwei, Zhang Fenggang

PetroChina Sichuan Petrochemical Company Limited, Chengdu, Sichuan, P.C.611930

Received:2021-11-21 Revised:2022-08-05 Online:2022-12-25 Published:2022-12-29

摘要/Abstract

摘要：

乙烯装置生产的丙烯产品作为聚丙烯装置的原料，当丙烯产品中甲醇超标时，会对聚丙烯装置的生产运行造成巨大影响。乙烯装置生产过程中,目的产品中甲醇的来源有多种途径,包括原料中携带甲醇、其他含氧化合物等在高温裂解条件下产生的醇类,以及装置自身为解冻而准备的甲醇、丙醇等。这些醇类最终会进入到丙烯精馏系统中，影响丙烯产品的质量。通过对原料、急冷水系统、丙烯精馏系统等进行优化调整，达到提高丙烯产品质量、降低其中甲醇的目的。

关键词: 乙烯装置 , 丙烯产品 , 甲醇含量 , 分析优化

Abstract:

Propylene products from ethylene plant are used as raw materials for polypropylene plant. If the methanol in propylene products exceeds the standard, it will have a great impact on the production and operation of polypropylene plant. During the production of ethylene plant, there are many sources of methanol in the target product, including the methanol carried in raw materials, the alcohols produced from oxygenated compounds under high-temperature cracking conditions, and the methanol and propanol prepared by the plant for defrosting. These alcohols will eventually enter the propylene distillation system and affect the quality of propylene products. In this paper, the raw materials, quench water system and propylene distillation system are optimized and adjusted to improve the quality of propylene products and reduce its methanol content.

Key words: ethylene plant, propylene product, methanol content, analysis and optimization

刘源波, 雷伟伟, 张锋刚. 丙烯产品中甲醇含量高的原因及处理方法[J]. 乙烯工业, 2022, 34(4): 26-29.

Liu Yuanbo, Lei Weiwei, Zhang Fenggang. Causes and Treatment of High Methanol Content of Propylene Products[J]. Ethylene Industry, 2022, 34(4): 26-29.

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