Optimization Of Hydrogen Production From Biomass Gasification In Supercritical Water By Concentrated Solar Energy

Hydrogen is recognized as a new generation of ideal alternative energy，which hasthe advantages of high energy density, high utilizing efficiency, easy storage andtransportation, no pollution for the environment. High efficiency and low-cost hydrogenproduction is key to the realization. Biomass with zero emission and water are chosen asfeedstock to product hydrogen by renewable solar energy. This process of hydrogenproduction hopefully achieves sustaining development of energy. Besides, the study hasstrategic significance and social value.Based on the integration of different systems and the comprehensive steputilization of energy, the system of hydrogen production by biomass gasification insupercritical water has been coupled with solar energy. The analysis of hydrogenproduction process indicates that in the system of hydrogen production by biomassgasification in supercritical water with concentrated solar energy, when reactor andthermal storage equipment are set independently, the comprehensive performance ofsystem is best. Secondly, based on the analysis of products and energy utilization, wecan found that addition of preheating process is beneficial to the transformation ofhydrogen from solar energy and biomass. Finally, in the system with preheating process,we choose glucose and corncob as feedstock, the research comes down to the impact ofcomponents, hydrogen quantity and gasification efficiency from temperature,concentration, pressure, catalyst and flow rate.This article aims at hydrogen production using solar energy system, makes acomparison and draws the reasonable process. The conclusions provide certain theoryinstruction value for the design and application of hydrogen production from biomass by concentrated solar energy.