Production of Hydrogen and Nanofibrous Carbon by Selective Catalytic Decomposition of Propane | Sciact - CRIS-system of Boreskov Institute of Catalysis

Production of Hydrogen and Nanofibrous Carbon by Selective Catalytic Decomposition of Propane Full article

Journal

International Journal of Heat and Mass Transfer
ISSN: 0017-9310

Output data

Year: 2009, Volume: 34, Number: 3, Pages: 1310-1323 Pages count : 14 DOI: 10.1016/j.ijhydene.2008.11.045

Tags

Hydrogen for PEMFC, Nanofibrous carbon (NFC), Ni-Cu catalysts, Propane decomposition, Selectivity of hydrogen

Authors

Solovyev E.A. ¹ , Kuvshinov D.G. ² , Ermakov D.Yu. ³ , Kuvshinov G.G. ¹

Affiliations

1	Novosibirsk State Technical University, Prosp. Karla Marksa 20, Novosibirsk 630092, Russia
2	Department of Chemical and Process Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK
3	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Science, Prosp. Ak. Lavrentieva 5, Novosibirsk 630090, Russia

The process of production of highly concentrated COx-free hydrogen and nanofibrous carbon (NFC) by catalytic propane decomposition on Ni and Ni–Cu catalysts (different in active phase composition) at relatively low temperatures (400–700 °C) was investigated. The bimetallic Ni–Cu catalysts showed significantly higher propane conversion and longer lifetime than monometallic Ni catalyst. The Ni (50 wt.%)–Cu (40 wt.%)/SiO2 catalyst exhibited the best activity and selectivity at 600 °C. Total hydrogen yield of 60.8 mol H2/gcat (during 24 h time on stream) and the total H2:CH4 ratio of 8.4 were obtained during propane decomposition under these optimal conditions. The possible reaction scheme of propane decomposition over Ni-based catalysts and the reasons of increasing the selectivity of hydrogen are discussed. Propane decomposition on Ni-based catalysts is accompanied by simultaneous formation of hydrogen and NFC. Carbon nanofibers with stacked-cone structure as well as platelet structure with a wide distribution of carbon nanofiber diameters (10–500 nm) were obtained. These nanofibers were formed by heterogeneous reactions at the temperatures up to 600 °C. At temperatures above 600 °C nanofibers with thin coating of pyrocarbon on their surface were obtained. The branched nanofibers were grown on Ni catalyst. The coiled nanofibers and the carbon nanofiber ropes were grown on Ni–Cu catalysts. This process is proposed to be acceptable for production of COx-free hydrogen used in proton-exchange membrane fuel cells (PEMFC).

Solovyev E.A. , Kuvshinov D.G. , Ermakov D.Y. , Kuvshinov G.G.
Production of Hydrogen and Nanofibrous Carbon by Selective Catalytic Decomposition of Propane
International Journal of Heat and Mass Transfer. 2009. V.34. N3. P.1310-1323. DOI: 10.1016/j.ijhydene.2008.11.045 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Sep 26, 2007
Accepted:	Nov 14, 2008
Published online:	Jan 1, 2009
Published print:	Feb 1, 2009

Web of science:	WOS:000263666000019
Scopus:	2-s2.0-58649095099
Elibrary:	13608801
Chemical Abstracts:	2009:125502
Chemical Abstracts (print):	151:554315
OpenAlex:	W2019821027

DB	Citing
Web of science	18
Scopus	20
Elibrary	20
OpenAlex	21