Biomass gasification with air in fluidized bed. Hot gas cleanup with selected commercial and full-size nickel-based catalysts

Journal Article · Mon May 01 04:00:00 EDT 2000 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie990738t· OSTI ID:20076064

Caballero, M A; Corella, J; Aznar, M P; Gil, J

Three selected commercial, full-size steam-reforming catalysts for naphthas, BASF G1-50, ICI 46-1, and Topsoee R-67, are tested at pilot-scale level for hot gas cleanup in biomass gasification in a fluidized bed. Gas composition and tar content in the flue gas are measured before and after the catalytic bed. Variations of the catalytic bed in H{sub 2}, CO, CO{sub 2}, CH{sub 4}, and H{sub 2}O contents are reported for different operating conditions. Tar conversions and an apparent first-order kinetics constant for the overall tar removal reaction are calculated. Tar contents at the exit of the catalytic reactor as low as 10 mg/m{sub n}{sup 3} are obtained in a test of 50 h-on-stream without noticeable catalyst deactivation. Important variations in tar conversion with space time in the catalytic bed, with H{sub 2}O/C* in the flue gas, and with the equivalence ratio in the upstream gasifier are observed. These results obtained at the pilot-scale level and with the use of full-sized commercial catalysts are an important forward step in demonstrating the technical feasibility of the overall biomass gasification process.

• Research Organization: Univ. of Saragossa (ES)
• OSTI ID: 20076064
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 5 Vol. 39; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
CATALYSTS
CATALYTIC EFFECTS
GAS FUELS
HOT GAS CLEANUP
NICKEL
PERFORMANCE TESTING
REMOVAL
STEAM REFORMER PROCESSES
TAR