Recent advances in catalysts for hot-gas removal of tar and NH3 from biomass gasification
- 18 February 2010
- journal article
- review article
- Published by Elsevier BV in Fuel
- Vol. 89 (8), 1784-1795
- https://doi.org/10.1016/j.fuel.2010.02.014
Abstract
Biomass gasification produces a low to medium-BTU product gas (or syngas) containing primarily CO2, H2, CO, CH4 and (C2 + C3), as well as some contaminants such as tars, NH3, H2S and SO2. In order to achieve better efficiencies of the syngas applications, these contaminants must be removed before the syngas is used for internal combustion, gas engines, and in particular for fuel cells and methanol synthesis. Compared with the wet scrubbing technology, hot-gas cleanup technology to remove tar, ammonia and other contaminants at the “hot” state is more advantageous with respect to energy efficiencies. This paper provides an overview on recent advances in catalysts for hot-gas removal of tar and ammonia from biomass gasification. The review focuses on the recent development and applications of dolomite catalysts, iron-based catalysts, nickel and other metal supported catalysts, and the novel carbon-supported catalysts for hot-gas tar removal and ammonia decomposition. The barriers in applications of hot-gas cleanup processes and catalysts for full-scale biomass gasification, and areas for future research, are also discussed.Keywords
This publication has 88 references indexed in Scilit:
- Novel carbon-based Ni/Fe catalysts derived from peat for hot gas ammonia decomposition in an inert helium atmosphereApplied Catalysis A: General, 2010
- Recent progress in Japan on hot gas cleanup of hydrogen chloride, hydrogen sulfide and ammonia in coal-derived fuel gasPowder Technology, 2009
- Modeling and optimization of the moving granular bed for combined hot gas desulfurization and dust removalPowder Technology, 2008
- Olivine catalysts for methane- and tar-steam reformingApplied Catalysis B: Environment and Energy, 2007
- Catalytic decomposition of ammonia gas with metal cations present naturally in low rank coalsFuel, 2005
- Decomposition of ammonia over a catalyst consisting of ruthenium metal and cerium oxides supported on Y-form zeoliteJournal of Molecular Catalysis A: Chemical, 2000
- Release of Fuel-Bound Nitrogen during Biomass GasificationIndustrial & Engineering Chemistry Research, 2000
- Formation of HNCO from the Rapid Pyrolysis of CoalsEnergy & Fuels, 1996
- Catalytic purification of tarry fuel gasFuel, 1990
- Catalytic Steam Gasification of Biomass for Methanol and Methane ProductionJournal of Solar Energy Engineering, 1985