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Title: Miniaturization of a Hydrogen Plant

Abstract

The development of a miniaturized hydrogen plant is discussed. The micro-scale system is capable of producing 1-5 sccm hydrogen that could be used as a fuel supply in a small fuel cell to produce <1 W power. The paper describes the developmental approach, significant unit operations, material selection, and reactor design. The final microscale fuel processing system is composed of a catalytic combustor, catalytic methanol reformer, selective methanation reactor, and the necessary vaporizers and heat exchangers. The fuel processing system is less than 0.3 cm3 and less than 1 gram mass. Thermal efficiencies as high as 33% for hydrogen production were achieved. When a methanation reactor was incorporated into the system, a carbon monoxide level of less than 100 ppm was reached, but at a reduced system efficiency. Further development work includes increasing efficiency through improved system integration.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
984258
Report Number(s):
PNNL-SA-42455
17504; TRN: US201015%%913
DOE Contract Number:
AC05-76RL01830
Resource Type:
Book
Resource Relation:
Related Information: Microreactor Technology and Process Intensification, ACS Symposium Series, 914:162-178
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 10 SYNTHETIC FUELS; 30 DIRECT ENERGY CONVERSION; CARBON MONOXIDE; CATALYTIC COMBUSTORS; DESIGN; EFFICIENCY; FUEL CELLS; HEAT EXCHANGERS; HYDROGEN; HYDROGEN PRODUCTION; METHANATION; METHANOL; MINIATURIZATION; PROCESSING; microchannel reactors; methanol reforming; hydrogen production; Environmental Molecular Sciences Laboratory

Citation Formats

Holladay, Jamie D., Jones, Evan O., Dagle, Robert A., Xia, Gordon, Cao, Chunshe, and Wang, Yong. Miniaturization of a Hydrogen Plant. United States: N. p., 2005. Web.
Holladay, Jamie D., Jones, Evan O., Dagle, Robert A., Xia, Gordon, Cao, Chunshe, & Wang, Yong. Miniaturization of a Hydrogen Plant. United States.
Holladay, Jamie D., Jones, Evan O., Dagle, Robert A., Xia, Gordon, Cao, Chunshe, and Wang, Yong. Thu . "Miniaturization of a Hydrogen Plant". United States. doi:.
@article{osti_984258,
title = {Miniaturization of a Hydrogen Plant},
author = {Holladay, Jamie D. and Jones, Evan O. and Dagle, Robert A. and Xia, Gordon and Cao, Chunshe and Wang, Yong},
abstractNote = {The development of a miniaturized hydrogen plant is discussed. The micro-scale system is capable of producing 1-5 sccm hydrogen that could be used as a fuel supply in a small fuel cell to produce <1 W power. The paper describes the developmental approach, significant unit operations, material selection, and reactor design. The final microscale fuel processing system is composed of a catalytic combustor, catalytic methanol reformer, selective methanation reactor, and the necessary vaporizers and heat exchangers. The fuel processing system is less than 0.3 cm3 and less than 1 gram mass. Thermal efficiencies as high as 33% for hydrogen production were achieved. When a methanation reactor was incorporated into the system, a carbon monoxide level of less than 100 ppm was reached, but at a reduced system efficiency. Further development work includes increasing efficiency through improved system integration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2005},
month = {Thu Sep 01 00:00:00 EDT 2005}
}

Book:
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