Intrinsic kinetics of oxidative dehydrogenation of propane in the presence of CO2 over Cr/MSU-1 catalyst

被引：32
|
作者：
Liu, Haitao [1 ]
Zhang, Zhao [1 ]
Li, Huiquan [1 ]
Huang, Qingze [1 ]
机构：
[1] Chinese Acad Sci, Inst Proc & Engn, Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
来源：
JOURNAL OF NATURAL GAS CHEMISTRY | 2011年 / 20卷 / 03期
基金：
中国国家自然科学基金;
关键词：
intrinsic kinetics; propane; carbon dioxide; oxidative dehydrogenation; Cr/MSU-1; catalyst; OXIDE CATALYSTS; MESOPOROUS SILICA; CARBON-DIOXIDE; VANADIUM; OXIDEHYDROGENATION; PERFORMANCE; PROPYLENE; PROPENE; ETHANE;
D O I：
10.1016/S1003-9953(10)60180-6
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The intrinsic kinetics of oxidative dehydrogenation of propane with CO2 has been investigated over Cr/MSU-1 catalyst in a fixed bed reactor. Without limitations of both internal and external diffusion, intrinsic kinetic data were obtained under the following conditions: 490-530 degrees C, space velocity of 3600-6000 mL.h(-1).g(-1) and 3/1 molar ratio for CO2/C3H8 under normal pressure. Based on Langmuir-Hinshelwood mechanism, the kinetic models were established, and they were validated by statistical analysis. The parameters were estimated using Simplex Method combined with Universal Global Optimization Algorithm. The model, taking the surface reaction process as the rate-determining step, is the best one in agreement with the experimental data.
引用
收藏
页码：311 / 317
页数：7
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