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...

Novel NiO/GDC (Gadolinium-doped Ceria) cermet catalysts were developed by the Weak Acid Resin (WAR) method using an ion exchange resin template. In addition, the specific surface area of these tunable materials was enhanced by NiO partial dissolution in aqueous acid solution. The whole procedure highly improved the micro-structural properties of these materials compared to previous studies. Cat...

The present review focuses on the current progress harnessing potential of hydrogen production by Methane Steam Reforming (MSR). First, based prominent literature in last few years, overall research efforts using different feed stocks like ethanol, ammonia, glycerol, methanol and methane is presented. presented data reactor type, operating conditions, catalyst used yield to provide a general ov...

catalytic steam reforming of methane Zi-Yian Lim, Chunzheng Wu, Wei Guo Wang, Kwang-Leong Choy, and Hongfeng Yin a Ningbo Institute of Material Technology and Engineering, 519 Zhuangshi Road, Zhenhai District, Ningbo 315201, China. E-mail: [email protected] b University of Nottingham, Ningbo China, 199 Taikang East Road, University Park, Ningbo 315100, China. E-mail: [email protected] c...

Introduction Reforming (i.e., partial oxidation, steam reforming, or autothermal reforming (ATR)) of infrastructure fuels, such as natural gas, liquefied petroleum gas, gasoline, or diesel, is one approach being investigated for distributed H2 production for use with fuel cell systems being developed for automotive and stationary applications. One area of interest is reforming gasoline either o...

A long term pilot scale experiment with steam reforming treatment technology was conducted for volume and weight reduction of uranium contaminated waste tri-n-butyl phosphate/n-dodecane solvent (TBP/dodecane) which was difficult to incinerate. The technology consists of a steam reforming process and a submerged combustion process. In the first process, TBP/dodecane is vaporized and pyrolyzed wi...

High temperature steam gasification/reforming of biomass-methane mixtures was carried out in an indirectly heated entrained flow reactor to analyze the feasibility of controlling the output composition of the major synthesis gas products: H(2), CO, CO(2), CH(4). A 2(3) factorial experimental design was carried out and compared to thermodynamic equilibrium predictions. Experiments demonstrated t...

We examine a H2 PEMFC power generation system composed of three subsystems: fuel reforming, fuel cell stack, and post combustion. The system was simulated and optimized with a fuel cell model integrated within the process flow sheet. We present a case study of the H2 production optimized w.r.t. the CH4 and H2O inlet flow rate and the temperature of steam methane reform reactor. Our objectives a...

Palladium-based catalytic membrane reactors (CMRs) effectively remove H₂ to induce higher conversions in methane steam reforming (MSR) and water-gas-shift reactions (WGS). Within such a context, this work evaluates the technical performance of a novel CMR, which utilizes two catalysts in series, rather than one. In the process system under consideration, the first catalyst, confined within the ...