Experimental study of the partial catalytic dehydrogenation of selected kerosene components with Pt-Sn/γ-Al2O3

被引：8

作者：

Pearson, K. ^{[1
]}

Kaefer, T. ^{[1
]}

Kraaij, G. ^{[1
]}

Woerner, A. ^{[1
]}

机构：

[1] German Aerosp Ctr, Inst Engn Thermodynam, D-70569 Stuttgart, Germany

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 03期

关键词：

Partial catalytic dehydrogenation; Hydrogen; Kerosene composition; HYDROGEN-PRODUCTION; METHYLCYCLOHEXANE; AIRCRAFT; CRACKING; KINETICS;

D O I：

10.1016/j.ijhydene.2014.11.060

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：

The partial catalytic dehydrogenation has been carried out with defined model components and model mixtures representing hydrocarbon groups and chemical composition of desulfurized Jet A-1 over 1.0 wt% Pt/Sn catalyst on gamma-Al2O3 carrier. The hydrogen yield, cracking products and carbon deposit on the catalyst surface are studied in order to define suitable reaction conditions for a pressurized auxiliary power unit concept with gas conditioning for fuel cell systems. The results show that alkanes lead to high cracking rate and carbon deposit which can be suppressed with increased pressure up to 8 bar. The hydrocarbon group cycloalkanes represented by methylcyclohexane shows sufficient conversion of 32 wt% towards hydrogen evolution in model mixtures under pressurized conditions. The average hydrogen yield of the model mixture of 72 nl(H2)/kg(feed) was achieved under defined reaction conditions of 425 degrees C catalyst bed temperature, 8 bar system pressure and 4 s of contact time on the catalyst. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1367 / 1378

页数：12

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