Intrinsic kinetics for rapid decomposition of methane in an aerosol flow reactor

被引：53

作者：

Dahl, JK ^{[1
]}

Barocas, VH ^{[1
]}

Clough, DE ^{[1
]}

Weimer, AW ^{[1
]}

机构：

[1] Univ Colorado, Ctr Engn, Dept Chem Engn, Boulder, CO 80309 USA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2002年 / 27卷 / 04期

关键词：

D O I：

10.1016/S0360-3199(01)00140-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A one-dimensional nonisothermal model is developed for the high-temperature rapid dissociation of methane in a fluid-wall graphite aerosol flow reactor. Intrinsic reaction kinetics are identified through simulation of the model and comparison to experimental results. The dissociation rate can be described by dX/dT = 6 x 10(11) exp (-25000/T) (1 - X)(4.4) s(-1) over the temperature range 1533 < T < 2144 K and residence time range 0.9 < t < 1.5 s. This rate expression is useful for describing high-temperature short residence time processes for producing hydrogen and carbon black by methane decomposition (CH4 --> C + 2H(2)). (C) 2002 International Association for Hydrogen Energy. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：377 / 386

页数：10

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