乙烯环氧化制环氧乙烷体系反应影响因素的模拟研究

• 作 者: 李芮丽 赵振兴 王学义
• 机 构: 清华大学化工系，中国科学院化工冶金研究所，新乡市化工一厂
• 出 处: 计算机与应用化学
• 发表日期: 1995年01期
• 关键词: 环氧化 影响因素 二维数学模型 反应选择性 催化剂技术 北京燕山 反应特性 氧化反应 石油化工公司 爆炸极限

采用拟均相二维数学模型对乙烯环氧化制环氧乙烷体系反应影响因素进行了模拟研究。结果表明提高温度Ｔ，降低空速Ｓｖ不利于反应选择性的提高；提高Ｏ２浓度，可显著改善反应特性，并提出分段投氧；Ｃ２Ｈ４浓度的提高，环氧乙烷的产率明显提高，但其它相关因素需相应调整。还提出了高选择性（８５％）催化剂需重新优化的问题。

The quasi-homogeneous two-dimensional mathematical model was used to simulate the influencing factors of the reaction of ethylene oxide with ethylene oxide. The results show that increasing the temperature T and decreasing the space velocity Sv are not conducive to the improvement of the reaction selectivity. Increasing the O2 concentration can significantly improve the reaction characteristics and propose a stepwise oxygen input. With the increase of the C2H4 concentration, the yield of ethylene oxide is obviously increased, However, other relevant factors need to be adjusted accordingly. It also raised the issue of the need for re-optimization of highly selective (85%) catalysts.