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4277816 
Journal Article 
Vegetable oil as a solvent for removing producer gas tar compounds 
Bhoi, PR; Huhnke, RL; Kumar, A; Payton, ME; Patil, KN; Whiteley, JR 
2015 
Yes 
Fuel Processing Technology
ISSN: 0378-3820 
133 
97-104 
English 
WOS:000352050000014 
The objective of this study was to evaluate the performance of vegetable oil as a solvent in a wet packed bed scrubbing system for removing model producer gas tar compounds. Solvent type, column bed height, solvent temperature and solvent flow rate were varied to assess the performance in terms of tar removal efficiency. Soybean and canola oils were used as solvents. Benzene, toluene and ethylbenzene were used as model tar compounds. Testing was conducted using a bench scale packed bed column, 5.25 cm diameter by 1.1 m height, filled with 6-mm raschig rings as packing material. Statistical analysis showed that soybean and canola oils provide comparable removal efficiencies of tar compounds. The analysis also revealed that bed height and solvent temperature had highly significant effects on tar removal efficiencies. Bed height, solvent temperature and solvent flow rate had highly significant effects on liquid holdup and pressure drop across the column. (C) 2015 Elsevier B.V. All rights reserved. 
Producer gas tars; Raschig rings; Wet scrubbing system; Soybean oil; Canola oil