The conversion of logistics fuels to hydrogen by steam reforming is attractive but poses great challenge since they contain sulfur up to about 3000 ppm leading to catalyst deactivation due to sulfur poisoning. In this paper, we report the fabrication of nominally doped nanoscale ceriasupported rhodium catalyst matrices for their performance evaluation in sulfur-laden fuel streams. Systematic st...

A simple yet efficient method to remove organic ligands from supported nanocrystals is reported for activating uniform catalysts prepared by colloidal synthesis procedures. The method relies on a fast thermal treatment in which ligands are quickly removed in air, before sintering can cause changes in the size and shape of the supported nanocrystals. A short treatment at high temperatures is fou...

A comprehensive mathematical model of the performance of the cathode-supported solid oxide fuel cell (SOFC) with syngas fuel is presented. The model couples the intricate interdependency between the ionic conduction, electronic conduction, gas transport, the electrochemical reaction processes in the functional layers and on the electrode/electrolyte interfaces, methane steam reforming (MSR) and...

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...

The switch from a carbon-based to hydrogen-based economy requires environmentally friendly methods for hydrogen production. CO 2 -reforming of methane promises be greener alternative steam-methane reforming, which accounts the majority production today. For this dry process become industrially competitive, challenges such as catalyst deactivation and degradation through coke formation must bett...

Ethylene is the most produced organic substance in world and a pillar chemical process industry. The production pathway energy intensive has corresponding high carbon footprint. This work explores, simulates, presents possibility of reforming fuel gas steam cracking furnace. Currently, methane (CH4) hydrogen (H2) from furnace outlet makes up source. If H2 by reformation current can cover demand...

Novel micro-structured string-reactor designed as catalytically active wires placed in parallel into a tube was developed. The small diameter of the channels (∼100 m) leads to a short radial diffusion time, a narrow residence time distribution (RTD), and a low pressure drop. This reactor was applied for the oxidative steam-reforming of methanol (OSRM) to produce hydrogen in autothermal mode for...

The focus of this review paper was to investigate innovations currently employed capture and use greenhouse gases produced within livestock farms for energy production expected future directions. methods considered data collection regarded a systematic the literature, where 50 journal articles were critically reviewed. main findings identified that conventional method used in transforming agric...

methanol steam reforming plays a pivotal role to produce hydrogen for fuel cell systems in a low temperature range. to accomplish higher methanol conversion and lower co production, the reaction was catalyzed by cuznfe mixed oxides. various ratios of fe and cu/zn were coprecipitated in differential method to optimize the cuznfe structure. the sample containing 45cu50zn5fe (wt. %) revealed its m...

a micro-channel heat exchanger reactor with different micro-baffle shapes has been studied numerically. governing equations were solved base on the finite volume method with fluent software. in upper section, oxidation reaction of methanol was occurred and in lower section, steam reforming of methanol was done. two sections were separated with solid part which played as heat exchanger and trans...