Modelling and simulation of the monolithic reactor for gas-liquid-solid reactions
Modelling and simulation of the monolithic reactor for gas-liquid-solid reactions
复制标题
气-液-固反应整体式反应器的建模与仿真
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
R. Lange
中科院分区：
文献类型：
--
作者：
T. Bauer;R. Guettel;S. Roy;M. Schubert;M. Al;R. Lange
本文建立了泰勒模式和膜流模式下整体式反应器的数学模型，并进行了模拟计算。以α-甲基苯乙烯三相加氢制异丙苯和苯乙炔连续加氢为模型反应进行了研究。考察了操作条件和反应器参数，如表观气速、表观液速、床层结构、压力和温度对转化率、选择性和产率的影响。该模型还包括从文献中获得的估算传质系数和动力学参数的关联式。该模型已成功地与实验数据进行了验证。在最佳操作条件下，对泰勒流和膜流反应器的性能进行了比较。已确定关键操作参数，以保持最佳性能，随后可用作设计和放大的标准。此外，一个滴流床反应器的行为进行建模使用的相关性从文献。对整体式反应器和滴流床反应器进行了模拟计算，并在各系统的最佳操作条件下进行了模拟计算。结果表明，整体式反应器具有较高的选择性和较高的产品收率。
This work provides a mathematical model and process simulations of a monolith reactor operated in Taylor mode and film flow mode. The three-phase hydrogenation of α-methylstyrene into cumene and the consecutive hydrogenation of phenyl acetylene were studied as model reactions. The influences of operating conditions and reactor parameters, such as superficial gas and liquid velocities, bed structure, pressure and temperature on conversion, selectivity and productivity were examined. This model also includes the correlations for estimating mass transfer coefficients and kinetic parameters obtained from the literature. The proposed model has been successfully verified with experimental data. A comparison of the reactor performance between Taylor flow and film flow under optimum operating conditions was carried out. Key operating parameters have been identified to maintain optimal performance, which can subsequently be used as criteria for design and scale up. Furthermore, the behaviour of a trickle-bed reactor was modelled using correlations from the literature. The simulations for both monolithic and trickle-bed reactors were performed under optimum operating conditions of each system. It shows that the monolith reactor has higher selectivity and increased product yield.