微波裂解木粉生物质制混合可燃气的研究

Study on Microwave Pyrolysis of Wood Powder Biomass to Produce Mixed Combustible Gas

生物质是化石燃料的一种很有前途的替代品,随着世界能源消耗的持续增加,研究如何高效利用生物质已经成为了一个极具前景的方向。本研究提出了一种高效快速的方法,利用木粉生物质催化分解产出主要成分为CO与H_(2)的混合气。使用自主设计的压缩波导以及廉价的铁基催化剂催化裂解生物质,得到了较好的结果,其中CO产率约为28.15 mmol/g,H_(2)产率约为18.29 mmol/g。探索了物料中木粉与催化剂的不同配比、催化剂内铁铝元素配比及电磁场分布情况对气体产率的影响,并得到了能以较高产率裂解木粉生物质的反应条件,展示了以木粉为原料生产可燃气的潜力。

Biomass is a promising alternative to fossil fuels.With the continuous increase of world energy consumption,it has become a very promising direction to study how to use biomass efficiently.An efficient and fast method is proposed to produce a mixture of CO and H_(2)by catalytic pyrolysis of wood powder biomass.A self-designed compression waveguide and cheap iron-based catalyst are used for the catalytic pyrolysis of biomass,and good results are obtained.The CO yield is about 28.15 mmol/g,and the H_(2)yield is about 18.29 mmol/g.The effects of different ratios of wood powder and catalyst in the material,the ratio of iron and aluminum elements in the catalyst and the distribution of electromagnetic field on the gas yield are explored,and the pyrolysis conditions of wood powder biomass with high yield are obtained.The research shows the potential of producing combustible gas with wood powder as raw material.