Kinetic Studies of Methanol Steam Reforming Over Pd/ZnO Catalyst Using a Microchannel Reactor

Journal Article · Thu Apr 01 04:00:00 EST 2004 · Applied catalysis. A, General

DOI:https://doi.org/10.1016/j.apcata.2003.11.043· OSTI ID:15007752

Cao, James; Xia, Gordon; Holladay, Jamie D; Jones, Evan O; Wang, Yong

A microchannel reactor with effective heat exchange has been developed to evaluate catalyst performance and measure reaction kinetics. The reactor provides an isothermal environment for rate measurement of the endothermic methanol steam reforming reactions over a Pd/ZnO catalyst in a wide temperature range (160C to 310C). The apparent activation energy and rate equation have been determined to fit the power law expression. This kinetic result provides fundamental data for the design of a miniature fuel processor for small fuel cell applications. The rate equation has been applied to a three-dimensional pseudo homogeneous model to simulate temperature profiles in both microchannel and conventional fixed bed reactors.

• Research Organization: Pacific Northwest National Lab., Richland, WA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15007752
• Report Number(s): PNWD-SA-6164
• Journal Information: Applied catalysis. A, General, Journal Name: Applied catalysis. A, General Journal Issue: 1 Vol. 262
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
30 DIRECT ENERGY CONVERSION
ACTIVATION ENERGY
CATALYSTS
DESIGN
FUEL CELLS
KINETICS
KINETICS
METHANOL STEAM REFORMING
MICROCHANNEL REACTOR
PD/ZNO CATALYST
METHANOL
PACKED BEDS
PERFORMANCE
REACTION KINETICS
STEAM