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《工程(英文)》 >> 2017年 第3卷 第3期 doi: 10.1016/J.ENG.2017.03.003

尼龙-6 单体己内酰胺绿色生产技术

Research Institute of Petroleum Processing, China Petrochemical Corporation , Beijing 100083, China

收稿日期: 2016-11-17 修回日期: 2017-01-18 录用日期: 2017-01-19 发布日期: 2017-05-10

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摘要

中国石化石油化工科学研究院(RIPP) 历经20 年的努力,成功开发出尼龙-6 单体己内酰胺绿色生产技术。该项技术主要包括:钛硅分子筛与浆态床反应器集成用于环己酮氨肟化合成环己酮肟,纯硅分子筛与移动床反应器集成用于环己酮肟气相贝克曼重排,非晶态Ni 催化剂与磁稳定床反应器集成用于己内酰胺精制。己内酰胺绿色生产技术在国际上率先实现工业化应用,建成了200 kt·a−1的工业装置。与已有技术相比,工业装置投资明显减少,氮原子利用率大幅提升,“三废”排放显著下降,没有副产硫酸铵。因此,已内酰胺与苯之间的价格差逐步减小。2015 年,己内酰胺绿色生产技术的产能达到3 × 106 kt·a−1,使我国成为世界第一己内酰胺生产大国,全球市场份额超过50 %。

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