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

[11] PRODUCTION OF OLEFINS BY OXIDATIVE DEHYDROGENATION OF PROPANE AND BUTANE OVER MONOLITHS AT SHORT-CONTACT TIMES [J].

HUFF, M ;

SCHMIDT, LD .

JOURNAL OF CATALYSIS, 1994, 149 (01) :127-141

[12] ETHYLENE FORMATION BY OXIDATIVE DEHYDROGENATION OF ETHANE OVER MONOLITHS AT VERY SHORT-CONTACT TIMES [J].

HUFF, M ;

SCHMIDT, LD .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (45) :11815-11822

[13] Elementary step model of ethane oxidative dehydrogenation on Pt-coated monoliths [J].

Huff, MC ;

Schmidt, LD .

AICHE JOURNAL, 1996, 42 (12) :3484-3497

[14] COMPARISON OF MONOLITH-SUPPORTED METALS FOR THE DIRECT OXIDATION OF METHANE TO SYNGAS [J].

TORNIAINEN, PM ;

CHU, X ;

SCHMIDT, LD .

JOURNAL OF CATALYSIS, 1994, 146 (01) :1-10

[15] Platinum-tin and platinum-copper catalysts for autothermal oxidative dehydrogenation of ethane to ethylene [J].

Yokoyama, C ;

Bharadwaj, SS ;

Schmidt, LD .

CATALYSIS LETTERS, 1996, 38 (3-4) :181-188

← 1 2 →