当前位置: X-MOL 学术Ind. Eng. Chem. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Methyl Methacrylate Synthesis: Thermodynamic Analysis for Oxidative Esterification of Methacrolein and Aldol Condensation of Methyl Acetate
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-05-21 , DOI: 10.1021/acs.iecr.0c02017
Yanan Guan 1 , Hongqin Ma 1 , Wenyao Chen 1 , Maoshuai Li 2 , Gang Qian 1 , De Chen 3 , Xinggui Zhou 1 , Xuezhi Duan 1
Affiliation  

Methyl methacrylate (MMA) as a specialty monomer of polymers has motivated industry to develop clean and sustainable technologies for its production. Herein, a comprehensive thermodynamic analysis of MMA production from petroleum-based and coal/biomass-based resources is conducted through the Gibbs free energy minimization method. For the petroleum-based route via oxidative esterification of methacrolein (MAL), the production of MMA is sensitive to the composition of methanol (MeOH) and O2 in the feed, but insensitive to the reaction temperature and pressure. For the coal/biomass-based route via aldol condensation of methyl acetate (MeOAc), a moderate temperature (350–400 °C) and large MeOH/MeOAc ratio (>2) give rise to the efficient production of MMA. Hence, significant improvements in the MMA yield could be achieved by optimizing the reaction conditions, which could almost reach the maximal value theoretically of 1.0 mol from per mole of MAL or MeOAc. This study would shed new light on the thermodynamics of MMA production, which is foundational for the development of new processes at the industrial scale.

中文翻译:

甲基丙烯酸甲酯的合成:甲基丙烯醛氧化酯化和乙酸甲酯醛醇缩合的热力学分析

甲基丙烯酸甲酯(MMA)作为聚合物的特殊单体,已促使工业界开发清洁,可持续的生产技术。在此,通过吉布斯自由能最小化方法对石油基和煤/生物质基资源生产MMA进行了综合热力学分析。对于通过甲基丙烯醛(MAL)的氧化酯化进行的石油基路线,MMA的生成对甲醇(MeOH)和O 2的组成敏感在进料中,但对反应温度和压力不敏感。对于煤/生物质通过乙酸甲酯(MeOAc)醇醛缩合制得的途径,适中的温度(350–400°C)和较大的MeOH / MeOAc比(> 2)可以有效地生产MMA。因此,通过优化反应条件可以实现MMA收率的显着提高,从理论上讲,每摩尔MAL或MeOAc几乎可以达到1.0 mol的最大值。这项研究将为MMA生产的热力学提供新的思路,这是在工业规模上开发新工艺的基础。
更新日期:2020-05-21
down
wechat
bug