Monometallic platinum and palladium-based catalysts in the competitive oxidation of methanol over the liquid-phase methanol-ethanol mixtures

被引：10

作者：

Morales-Leal, Francisco Jose ^{[1
]}

De la Rosa, Javier Rivera ^{[1
]}

Lucio-Ortiz, Carlos J. ^{[1
]}

De Haro Del Rio, David A. ^{[1
]}

Garza-Navarro, M. A. ^{[2
]}

Tian, Wei ^{[3
]}

Herrera, Jose E. ^{[3
]}

机构：

[1] Univ Autonoma Nuevo Leon, UANL, Fac Ciencias Quim, Ave Univ S-N, San Nicolas De Los Garza 64450, Nuevo Leon, Mexico

[2] Univ Autonoma Nuevo Leon, UANL, Fac Ingn Mecan & Elect, Ave Univ S-N, San Nicolas De Los Garza 64450, Nuevo Leon, Mexico

[3] Western Univ, Dept Chem & Biochem Engn, Thompson Engn Bldg,Room TEB 463, London, ON N6A 3K7, Canada

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 426卷

关键词：

Pt-based catalysts; Pd-based catalyst; Methanol-ethanol mixture; Competitive oxidation; Molecular sieve; CO2; formation; AEROBIC ALCOHOL OXIDATION; SELECTIVE OXIDATION; ETHYLENE-GLYCOL; FUEL-CELL; MOLECULAR-OXYGEN; GLASSY-CARBON; FORMIC-ACID; NANOPARTICLES; PERFORMANCE; GOLD;

D O I：

10.1016/j.cej.2021.131623

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work explored the catalytic performances of monometallic platinum and palladium-based catalysts applied in the competitive oxidation reaction of methanol in presence of ethanol as a possible quality control in counterfeit alcohol production. Pt and Pd over different supports like alumina, SBA-15, as well as faujasite type Y (FAU-Y) and ZSM-5 zeolites were applied in the competitive oxidation reaction of methanol and ethanol (equimolar amounts in 20 mL aqueous solution) with the addition of two kinds of oxidants (hydrogen peroxide (H2O2) and pure O-2 gas) for sake of evaluating the alcohols oxidation effect. The results showed that Pt/FAU-Y catalyst had the best performance, due to the molecular size difference between methanol and ethanol and the negligible diffusivity of ethanol through the small pore faujasite, the optimized Pt active sites can be fully accessed by the methanol molecule.

引用

页数：19

共 87 条

[11] INTERMEDIATES AND PRODUCTS OF ETHANOL OXIDATION ON PLATINUM IN ACID-SOLUTION [J].