The Experimental Study Of Hydrogen Production From Biomass Gasification

Hydrogen is expected to be an environmentally clean energy in the future. But it is not a kind of primary energy and has to be converted from some kind of primary energy. Hydrogen production from carbonaceous energy, such as coal and biomass, is a hot spot for study in the world. Biomass is a kind of renewable energy that fixes the solar energy. To some extent, hydrogen production from biomass, as well as capturing CO2, can achieve the goal of CO2 negative emission.Compared to conventional hydrogen production, direct hydrogen production from carbonaceous energy realizes the integration of reaction and separation processes, and endothermic and exothermic reactions. That is a high efficient way to produce hydrogen. The paper presents studies based on the principle of direct hydrogen production.This paper firstly builds a theoretical model of biomass gasification, then introduces Aspen Plus chemical process simulation software to study the effects of temperature, pressure, absorbent and catalyst on hydrogen production from biomass gasification. On this basis the paper summarizes the ideal parameter range of hydrogen production from biomass gasification.In order to study the reaction conditions and influencing factors of hydrogen production from biomass, direct hydrogen production from coal experiment facility has been amended. The reactants of the gasification process include biomass, CaO and steam. The facility has the ability to continuously feed the biomass/CaO powder into the reactor at a given pressure. The temperature, pressure, absorbent and catalyst parameters on the experimental results are studied in the continuous experiment facility. During the continuous experiment, the operation conditions and difficulties are also studied.