生物质空气-水蒸气催化气化制氢技术

生物质气化技术已在国内外得到广泛的开发和运用,但由于燃气品质较差,焦油较多,限制了生物质气化气的进一步利用。利用生物质制氢可以实现二氧化碳归零排放,从根本上解决化石能源消耗带来的温室效应问题,已引起世界各国研究者的普遍兴趣。本文介绍了生物质催化气化制氢概况,讨论了在气化过程中发生的主要化学反应以及影响可燃气中氢气含量的主要因素,进而给出了生物质催化气化制氢的典型流程。

Catalytic Gasification of Biomass with Air-Steam to Produce Hydrogen

The technology of biomass gasification was developed and applied universally all over the world.However,the poor quality of fuel gas and much content of tar limited its further application.In the process of producing hydrogen from biomass,zero CO_2 emission could be realized.This technology has attracted the researchers around the world.In this paper,the general situation of biomass catalytic gasification to produce hydrogen was firstly introduced.The main chemical reactions that occured in biomass gasfication were listed in this paper.The principal factors,i.e.gasifying agent and catalyst,which affect the hydrogen content of gases were discussed.Then the representative flow for biomass catalytic gasification was presented in this paper.