نتایج جستجو برای: catalytic reforming

تعداد نتایج: 84809  

ژورنال: مواد پرانرژی 2020

In this research, the catalytic reforming of kerosene was performed to investigate the production of jet fuels with military application. For this purpose, at first the role of catalysts in the process of jet fuel production was surveyed. Then, two catalysts of Ni supported on Al2O3 and Ni/ZSM-5 was applied as a case study in a fixed bed reactor. The applied catalysts in this research were prep...

1997
A. N. J. van Keulen K. Seshan J. H. B. J. Hoebink J. R. H. Ross

TAP Investigations of the CO2 Reforming of CH4 over Pt/ZrO2 A. N. J. van Keulen,∗,†,1 K. Seshan,† J. H. B. J. Hoebink,‡ and J. R. H. Ross∗ ∗College of Science, University of Limerick, Limerick, Ireland; †Catalytic Processes and Materials Group, Faculty of Chemical Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; and ‡Schuit Institute of Catalysis, Laboratorium ...

2017
Takeshi Fujita Kimitaka Higuchi Yuta Yamamoto Tomoharu Tokunaga Shigeo Arai Hideki Abe

We performed in-situ transmission electron microscopy (TEM) on a dealloyed nanoporous NiCo catalyst used for the dry reforming of methane (DRM) to investigate the origin of the catalytic activity and structural durability. The in-situ observations and local chemical analysis indicated that the DRM induced chemical demixing of Ni and Co accompanied by grain refinement, implying possible “synergi...

2008
Jing Su Chang-Won Park

A compact reformer to generate hydrogen for portable fuel cell applications is presented. This reformer is a conventional type single-path tubular reactor packed with granular catalyst particles in which steam reforming and catalytic partial oxidation reactions take place in series using a mixture of methanol and water as a feed. The novel feature of this reformer is in the interlacing of the f...

2007
Vinod M. Janardhanan Olaf Deutschmann

A detailed model is presented for the analysis of temperature, species concentration, and current density profiles as well as the efficiency and power density of a planar solid oxide fuel cell at direct internal reforming condition. The model describes the interactions of mass transport, heat transport, heterogeneous chemistry, and electrochemistry. The heterogeneous chemistry model for the cat...

2013
Chunfei Wu Zichun Wang Paul T. Williams Jun Huang

In this report, we introduce a novel and commercially viable method to recover renewable hydrogen and carbon nanotubes from waste glycerol produced in the biodiesel process. Gas-phase catalytic reforming converts glycerol to clean hydrogen fuel and by replacing the problematical coke formed on the catalyst with high value carbon nanotubes, added value can be realised. Additional benefits of aro...

Journal: :Renewable Energy 2022

The electrochemical activation of a Pt-KβAl2O3 catalytic system is studied for hydrogen production from ethanol. in-situ intercalation potassium ions onto the catalyst surface under negative polarization leads to and an increase in rate all explored conditions, observing reproducible, controllable reversible effect. Under ethanol partial oxidation migration promotes dehydrogenation route vs. de...

2002
Stefan Czernik Richard French Calvin Feik Esteban Chornet

At present, the commercial production of hydrogen is essentially carried out by catalytic steam reforming of hydrocarbons: natural gas and naphtha. However, the instability of the prices of natural gas makes the use of other raw materials increasingly attractive. This research focuses on the development of a technology for producing hydrogen from alternative resources, specifically from two typ...

2016
R. Manabe S. Okada R. Inagaki K. Oshima S. Ogo Y. Sekine

Catalytic steam reforming of methane for hydrogen production proceeds even at 473 K over 1 wt% Pd/CeO2 catalyst in an electric field, thanks to the surface protonics. Kinetic analyses demonstrated the synergetic effect between catalytic reaction and electric field, revealing strengthened water pressure dependence of the reaction rate when applying an electric field, with one-third the apparent ...

2016
Salwa A. Ghoneim Radwa A. El-Salamony Seham A. El-Temtamy S. A. Ghoneim

Decreasing supplies of high quality crude oil and increasing demand for high quality distillates have motivated the interest in converting natural gas to liquid fuels, especially with the present boom in natural gas proven reserves. Nevertheless, one major issue is the curtailment of costs incurred in producing synthesis gas from natural gas, which account for approximately 60% of the costs use...

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