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Date of Publication:2020-01-01

Journal:Taiyangneng Xuebao/Acta Energiae Solaris Sinica

Volume:41

Issue:8

Page Number:351-356

ISSN No.:0254-0096

Abstract:Na2CO3, Fe2O3 and CaO were selected as additives to enhance the hydrogen production characteristics of biomass char. A set of high temperature steam gasification reactor was designed and built to study the hydrogen production from corn straw char under different reaction temperature. The experimental results show that the H2 content in gasification gas can be effectively improved by increasing the temperature. All of the three additives can promote the volume fraction of H2 in the steam gasification of char, of which Na2CO3 is the best. Under the action of Na2CO3, the volume of H2 can reach 61.04% at 800℃, which is 12.02% higher than that without additive. Under the action of Fe2O3, the content of H2 can increase to 49.07%, which is 6.3% higher. Under the action of CaO, the volume content fraction of H2 can not be significantly increased. At 950℃, the effect of additives on H2 content in product gas is not obvious, and the H2 content in gasification gas is 62.53%. © 2020, Solar Energy Periodical Office Co., Ltd. All right reserved.

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