A comparison of H2 addition to 3 ms partial oxidation reactions

被引：18

作者：

Bodke, A ^{[1
]}

Henning, D ^{[1
]}

Schmidt, LD ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

CATALYSIS TODAY | 2000年 / 61卷 / 1-4期

关键词：

H-2; addition; partial oxidation reactions; dehydrogenation;

D O I：

10.1016/S0920-5861(00)00379-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We compare the effects of adding large amounts of H-2 to 3 ms partial oxidation reactions, ethane to ethylene, propane to olefins, and methane and ammonia to HCN. It is found that H-2 can be safely added at the 2/1 H-2/O-2 stoichiometry in the presence of these fuels without any homogeneous reactions, flames, or explosions. For all of these systems the addition of H-2 increases the selectivities to the desired products while strongly decreasing CO and CO2. Addition of H-2 forces water formation near the front face of the catalyst which consumes O-2 and allows dehydrogenation processes to dominate. (C) 2000 Published by Elsevier Science B.V.

引用

页码：65 / 72

页数：8

共 15 条

[1]

BHARADWAJ SS, 1996, J MOL CATAL-A CHEM, V105, P145

[2]

BODKE A, IN PRESS SCIENCE

[3]

BODKE A, UNPUB EFFECT H2 ADDI

[4] The effect of ceramic supports on partial oxidation of hydrocarbons over noble metal coated monoliths [J].

Bodke, AS ;

Bharadwaj, SS ;

Schmidt, LD .

JOURNAL OF CATALYSIS, 1998, 179 (01) :138-149

[5] Modeling the partial oxidation of methane in a short-contact-time reactor [J].

Deutschmann, O ;

Schmidt, LD .

AICHE JOURNAL, 1998, 44 (11) :2465-2477

[6]

DEUTSCHMANN O, IN PRESS P INT COMB

[7] Conditions for HCN synthesis and catalyst activation over Pt-Rh gauzes [J].

Dietz, AG ;

Schmidt, LD .

APPLIED CATALYSIS A-GENERAL, 1999, 180 (1-2) :287-298

[8]

Faravelli T, 1998, STUD SURF SCI CATAL, V119, P575

[9] STEPS IN CH4 OXIDATION ON PT AND RH SURFACES - HIGH-TEMPERATURE REACTOR SIMULATIONS [J].

HICKMAN, DA ;

SCHMIDT, LD .

AICHE JOURNAL, 1993, 39 (07) :1164-1177

[10] PRODUCTION OF SYNGAS BY DIRECT CATALYTIC-OXIDATION OF METHANE [J].

HICKMAN, DA ;

SCHMIDT, LD .

SCIENCE, 1993, 259 (5093) :343-346

← 1 2 →