环己醇/酮合成工艺的原子经济量化分析

“双碳”目标把我国化工产业绿色发展之路提升到新的高度,在此背景下为了优化己内酰胺生产过程中的环己醇、环己酮生产的路线选择,本文简要综述介绍了当前环己醇、环己酮的主要工业合成路线,并引入原子经济性的指标概念,分别对传统的环己烷氧化工艺、环己烯水合工艺、苯酚加氢工艺以及中国石化环己烯酯化加氢新工艺的绿色化程度进行了量化评估。研究发现环己烯酯化加氢新工艺更具原子经济性优势,单程转化率高、经济效益良好。

QUANTITATIVE ANALYSIS OF CYCLOHEXANOL CYCLOHEXANONE SYNTHESIS PROCESS BY ATOM ECONOMY

The "dual carbon" goal promotes China's chemical industry green development to a new level. To optimize the production route of cyclohexanol and cyclohexanone in producing caprolactam, this article introduces the main industrial synthesis process of cyclohexanol and cyclohexanone. The traditional processes such as cyclohexane oxidation, cyclohexene hydration and phenol hydrogenation as well as the new esterification hydrogenation process have been quantitatively evaluated for the degree of greenness by introducing index of atomic economy. It is found that the novel process of esterification hydrogenation has more advantages in atomic economy, high single-pass conversion and good economic benefits.