Title:
Catalytic Steam Reforming of Model Tar Compounds over CaO-Al2O3 Catalysts
Author(s):
Gil Lalaguna, N., Moreno, A., Sánchez, J.L., Murillo, M.B., Gea, G.
Document(s):
Paper
Abstract:
The end use application of the gaseous product obtained in a gasification process depends on its quality. Related to gas quality, tar formation is one of the mayor problems to deal with during biomass gasification. In regard to tar reduction, catalytic reforming is one of the most promising alternatives. In this work, tar reforming activity of different metal oxides (MgO, NiO, Fe2O3) impregnated over CaO/Al2O3 has been tested when two different gaseous streams (N2 as inert gas or a synthetic gasification gas, which included H2S) were fed together with tar model compounds and steam. When the gas used was N2, the catalyst which contained NiO showed the highest activity in tar steam¬ reforming reactions and, unlike the other catalysts, it didn´t show a clear deactivation trend. However, when the synthetic gasification gas was used, the difference between the activity of NiO and Fe2O3¬catalysts wasn't such significant. This fact could be due to H2S presence in the synthetic gas, which seems to be most detrimental to the NiO/CaO/Al2O3 catalyst.
Keywords:
catalytic conversion, gas cleaning, tar
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for synthesis gas production
Event:
20th European Biomass Conference and Exhibition
Session:
2BV.2.42
Pages:
1115 - 1119
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2BV.2.42
Price:
FREE
