CATALYTIC STEAM REFORMING OF TAR IN BIOMASS DERIVED PRODUCER GAS OVER A NOVEL PALYGORSKITE SUPPORTED NiCATALYST
IntroductionBiomass is considered as a promising renewable energy resource with the advantage of reducing the emission of greenhouse gases CO2. Currently, the most potential way of biomass utilizing is gasification of biomass to obtain a high-grade synthesis gas. However, during this process, the most troublesome problem is the existence of the undesired by-product tar, which not only reduces the efficiency of gasification, but harm the safety of the system after condensation at lower temperatures. Thus, Tar removal is the bottleneck process of the hot-gas cleanup and even the biomass gasification. Among many available methods, Catalytic cracking especially catalytic steam reforming seems to be the most effective way for biomass tar elimination.Ni based catalysts have promising activity for steam reforming of tar but easily suffers from the deactivation by carbon deposition.Calcined dolomites are the most widely used non-metallic catalysts for tar conversion 1-5, but their low attrition resistance and frangibility under high temperatures renders their utilizations. An effective solution for tar reforming was proposed by Corella 6, consisting of a calcined dolomite guard bed to decrease tar content, followed by a fixed bed Ni catalyst reforming reactor operating at about 800℃. Palygorskite (PG), another naturally mineral, with similar activity in tar conversion as calcined dolomite, has seldom been reported so far.
Tianhu Cheng Lei Song Xianlong Zhang Shuchuan Peng Peichao Shi
School of Resources & Environmental Engineering, Hefei University of Technology.Hefei, 230009, China School of Chemical Engineering, Hefei University of Technology,Hefei, 230009, China
国际会议
The 7th China-Korea Workshop on Clean Energy Technology(第七届中韩清洁能源技术研讨会)
太原
英文
89-90
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）