Biomass gasification using a horizontal entrained-flow gasifier and catalytic processing of the product gas

摘要: A novel study on biomass-air gasification using a horizontal entrained-flow gasifier and catalytic processing of the product gas has been conducted. The was designed to investigate effect catalyst loading gas. use reactor used assess orientation process. Both experimental computational fluid dynamics (CFD) approaches were employed. tests conducted at 800 oC equivalence ratio 0.23 while catalysed 350-400 hourly space velocity (GHSV) 8000 h-1. Preparation characterisation wood powder catalysts performed classical methods. Moreover, syngas tar composition analysed chromatograph (GC) GC-mass spectrometer (GC-MS) respectively. The research findings showed that maximum fuel conversion cold efficiency 99 % 70 respectively. length can also be reduced from common 1000-2000 mm 500 mm. catalysis pumice kaolin have limited However, doping with CeO2, ZrO2, CuO NiO improved heating value, coking resistance conversion. notable increase in LHV achieved ceria doped (8.97 MJ/Nm3) copper (8.66 compared 6.67 MJ/Nm3 non-catalytic test. For tested catalysts, CeO2 exhibited highest resistance. Furthermore, mainly through cracking partial oxidation reactions. lowest yield found 3.55 g/Nm3 kaolin-ceria-zirconia 14.92 gasification. Tar reduction untreated adsorption ranged 4-6 g/Nm3. In general, results this suggest there exist sensitivity overall It shown metal oxides both beneficial detrimental effects composition. Although value increased increasing loading, H2 decreasing trend highlighting further modification is required. utilised as support technology. investigation various metals testing different operating conditions are hereby proposed.