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A new combined desalination and power generation system using solar pond was presented in this paper and the principle of the new system was introduced. A new disc convergent-divergent nozzle was desgined and used in the simple reaction turbine. According to theoretical analysis of the thermodynamics process, the power production and fresh water rate were obtained at tapical parameters. To prove the...
Ethylene glycol (EG) synthesis from dimethyl oxalate (DMO) hydrogenation is a sustainable method compared with the production by petrochemical technology. The Cu/ZnO/SiO2 catalysts prepared by deposition precipitation method have been characterized by XRD, SEM, H2-TPR, and N2 physisorption. Under optimum reaction conditions, a DMO conversion of 100% and EG selectivity of 98% was obtained on the CuZn-5...
Experimental research on the synthesis of dimethyl ether (DME), ethylene glycol (EG), methyl glycolate (MG) from syngas, produced by biomass gasification and catalytic reforming, was carried out. The improved two step process, composed of methanol synthesis and methanol dehydration in a fixed-bed reactor, was employed for the direct DME synthesis. It shows that methanol synthesis catalyst in top stage...
Dimethyl ether (DME) has received growing attention due to its potential use as a multi-purpose fuel. A new technical route of improved two step synthesis is proposed for DME production, which is composed of methanol synthesis and methanol dehydration in a fixed-bed reactor. The influences of the operating conditions including reaction pressure, temperature, H 2 /CO mole ratio in the syngas...
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...
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