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快速微波辅助催化生物质气化联产煤气和去除焦油。

Fast microwave-assisted catalytic gasification of biomass for syngas production and tar removal.

机构信息

Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States.

Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States; GIMSCOP and Department of Chemical Engineering, Federal University of Rio Grande do Sul, Rua Engenheiro Luiz Englert, Prédio 12204, 90040-040 Porto Alegre-RS, Brazil.

出版信息

Bioresour Technol. 2014 Mar;156:291-6. doi: 10.1016/j.biortech.2014.01.057. Epub 2014 Jan 24.

DOI:10.1016/j.biortech.2014.01.057
PMID:24508907
Abstract

In the present study, a microwave-assisted biomass gasification system was developed for syngas production. Three catalysts including Fe, Co and Ni with Al2O3 support were examined and compared for their effects on syngas production and tar removal. Experimental results showed that microwave is an effective heating method for biomass gasification. Ni/Al2O3 was found to be the most effective catalyst for syngas production and tar removal. The gas yield reached above 80% and the composition of tar was the simplest when Ni/Al2O3 catalyst was used. The optimal ratio of catalyst to biomass was determined to be 1:5-1:3. The addition of steam was found to be able to improve the gas production and syngas quality. Results of XRD analyses demonstrated that Ni/Al2O3 catalyst has good stability during gasification process. Finally, a new concept of microwave-assisted dual fluidized bed gasifier was put forward for the first time in this study.

摘要

在本研究中,开发了一种用于合成气生产的微波辅助生物质气化系统。考察了三种负载型催化剂(Fe、Co 和 Ni)对合成气生产和焦油去除的影响。实验结果表明,微波是一种有效的生物质气化加热方法。Ni/Al2O3 被发现是用于合成气生产和焦油去除的最有效催化剂。当使用 Ni/Al2O3 催化剂时,气体产率达到 80%以上,焦油组成最简单。确定催化剂与生物质的最佳比例为 1:5-1:3。添加蒸汽被发现能够提高气体产量和合成气质量。XRD 分析结果表明,Ni/Al2O3 催化剂在气化过程中具有良好的稳定性。最后,首次在本研究中提出了微波辅助双流化床气化器的新概念。

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