In this work we proposed and investigated a new technology using gasoline
as a fuel for solid polymer electrolyte fuel cell through the decomposition
of gasoline range alkanes into hydrogen and carbon. The method can
supply a high purity hydrogen without CO and CO2. The decompositions
of various alkanes (CH4, C2H6, C3H8, C4H10, C6H14, and C8H18) have
been examined over Ni/fumed silica (Cab-O-Sil) at a temperature of
773 K. Main products were hydrogen and carbon fibers with a low concentration
by-product CH4. The number of carbons deposited per one Ni atom after
complete deactivation of the catalyst was in the range of 750-1000
depending on the starting alkanes. The selectivity of H2 formation
increased as the number of carbon in the molecular structure of alkanes
increased. Among C6-alkanes, the H2 selectivity improved as 3-methylpentane
(92%) n-hexane (94%) 6-alkanes and C8H18) were superior to the light
alkanes (4) for selective decomposition into hydrogen and carbon.
The amount of by-products probably formed due to thermal cracking
in the gas phase were negligible compared to that of CH4 during the
catalytic decomposition of gasoline range alkanes.
%0 Journal Article
%1 Otsuka2002
%A Otsuka, Kiyoshi
%A Shigeta, Yukio
%A Takenaka, Sakae
%D 2002
%J International Journal of Hydrogen Energy
%K imported
%N 1
%P 11-18
%T Production of hydrogen from gasoline range alkanes with reduced CO2
emission
%U http://www.sciencedirect.com/science/article/B6V3F-44FD6C8-2/1/b40810f30777f82cf834d13ddac6aa7e
%V 27
%X In this work we proposed and investigated a new technology using gasoline
as a fuel for solid polymer electrolyte fuel cell through the decomposition
of gasoline range alkanes into hydrogen and carbon. The method can
supply a high purity hydrogen without CO and CO2. The decompositions
of various alkanes (CH4, C2H6, C3H8, C4H10, C6H14, and C8H18) have
been examined over Ni/fumed silica (Cab-O-Sil) at a temperature of
773 K. Main products were hydrogen and carbon fibers with a low concentration
by-product CH4. The number of carbons deposited per one Ni atom after
complete deactivation of the catalyst was in the range of 750-1000
depending on the starting alkanes. The selectivity of H2 formation
increased as the number of carbon in the molecular structure of alkanes
increased. Among C6-alkanes, the H2 selectivity improved as 3-methylpentane
(92%) n-hexane (94%) 6-alkanes and C8H18) were superior to the light
alkanes (4) for selective decomposition into hydrogen and carbon.
The amount of by-products probably formed due to thermal cracking
in the gas phase were negligible compared to that of CH4 during the
catalytic decomposition of gasoline range alkanes.
@article{Otsuka2002,
abstract = {In this work we proposed and investigated a new technology using gasoline
as a fuel for solid polymer electrolyte fuel cell through the decomposition
of gasoline range alkanes into hydrogen and carbon. The method can
supply a high purity hydrogen without CO and CO2. The decompositions
of various alkanes (CH4, C2H6, C3H8, C4H10, C6H14, and C8H18) have
been examined over Ni/fumed silica (Cab-O-Sil) at a temperature of
773 K. Main products were hydrogen and carbon fibers with a low concentration
by-product CH4. The number of carbons deposited per one Ni atom after
complete deactivation of the catalyst was in the range of 750-1000
depending on the starting alkanes. The selectivity of H2 formation
increased as the number of carbon in the molecular structure of alkanes
increased. Among C6-alkanes, the H2 selectivity improved as 3-methylpentane
(92%) n-hexane (94%) 6-alkanes and C8H18) were superior to the light
alkanes (4) for selective decomposition into hydrogen and carbon.
The amount of by-products probably formed due to thermal cracking
in the gas phase were negligible compared to that of CH4 during the
catalytic decomposition of gasoline range alkanes.},
added-at = {2007-11-22T09:11:49.000+0100},
author = {Otsuka, Kiyoshi and Shigeta, Yukio and Takenaka, Sakae},
biburl = {https://www.bibsonomy.org/bibtex/22e4ff84e0cf4dea409c4ee0c7eda6d2b/tboehme},
endnotereftype = {Journal Article},
interhash = {679f729f6a68917a0d5fa73bfa6e04d0},
intrahash = {2e4ff84e0cf4dea409c4ee0c7eda6d2b},
journal = {International Journal of Hydrogen Energy},
keywords = {imported},
month = {2002/1},
note = {TY - JOUR},
number = 1,
pages = {11-18},
shorttitle = {Production of hydrogen from gasoline range alkanes with reduced CO2
emission},
timestamp = {2007-11-22T09:12:04.000+0100},
title = {Production of hydrogen from gasoline range alkanes with reduced CO2
emission},
url = {http://www.sciencedirect.com/science/article/B6V3F-44FD6C8-2/1/b40810f30777f82cf834d13ddac6aa7e},
volume = 27,
year = 2002
}