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5-hydroxymethylfurfural (5-HMF) is a kind of new green platform chemical with wide application. Glucose, which is the unit compound of cellulose, is one of the most important starting chemicals from biomass. With its low cost and wide supply, the conversion of glucose to HMF has attracted the interests of researchers. In this work, a systematic study has been conducted to evaluate the effects of operating...
In this study, biomass catalytic gasification process for producing H2-rich gas was presented. The process consists of mainly two fluidized beds-a gasifier and a CaO regenerator. The objective of this research is to develop a computer model of biomass catalytic gasification. A model was developed using Aspen Plus software. The model predicted gas composition and hydrogen yield in good agreement with...
The catalytic steam gasification of municipal solid wastes (MSW) for syn-gas production was experimentally investigated in a combined fixed bed reactor using the newly developed tri-metallic catalyst. A series of experiments have been performed to explore the effects of catalyst presence, catalytic temperature, catalyst to MSW weight ratio (C/M) and steam to MSW ratio (S/M) on the composition and...
The experimental research on catalytic cracking of ketone components in biomass pyrolysis oil was carried out on a fix-bed reactor, using HZSM-5 zeolite as the catalyst. Based on the results, coke formation was little during the cracking of ketone components, and the main cracking products were aromatic hydrocarbons and unsaturated alicyclic hydrocarbons. Meanwhile, hydrocarbons were easily produced...
A simulation of direct dimethyl ether (DME) synthesis from syn-gas, produced via biomass gasification and catalytic reforming, has been processed on the assumption of both physical and thermodynamic equilibrium. Simulation showed that reaction temperature, pressure and syn-gas composition are have the most important effect on DME synthesis behavior. In which, low temperature and high pressure would...
Summary form only given. Fast pyrolysis converts up to 75 mass % of biomass into bio-oils of which 12 mass % are small molecules with less than five carbon atoms. These molecules cannot be converted by existing technologies into green gasoline or green diesel. However, this fraction could be an excellent source for the production of hydrogen. In conventional steam reforming of oxygenated molecules,...
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