Enhancing MTBE rate equation by considering reaction medium influence

被引：23

作者：

Fite, C ^{[1
]}

Tejero, J ^{[1
]}

Iborra, M ^{[1
]}

Cunill, F ^{[1
]}

Izquierdo, JF ^{[1
]}

机构：

[1] Univ Barcelona, Fac Chem, Dept Chem Engn, E-08028 Barcelona, Spain

来源：

AICHE JOURNAL | 1998年 / 44卷 / 10期

关键词：

D O I：

10.1002/aic.690441016

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Rate data are reanalyzed for MTBE synthesis in the liquid phase at 318 - 363 K on the sulfonic macroporous resin Bayer K-2631. The data were obtained in a continuous upflow packed-bed reactor fed with isobutene (IB)-methanol (MeOH) mixtures with an IB/MeOH molar ratio ranging from 0.5 to 2.0. Rate equations based on LHHW and ER mechanisms do not predict rate data accurately, because of the influence of the reaction medium on the catalyst activity. A factor evaluating the resin-medium affinity has been introduced in the rate equations which, as a result, Ft the data with a good agreement. Fitted parameters were the overall kinetic constant and the resin solubility parameter. The apparent activation energy agrees with the values quoted in the literature, and the resin solubility parameter and its temperature dependence are plausible.

引用

页码：2273 / 2279

页数：7

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