Solar Gasification of Biomass: A Molten Salt Pyrolysis Study

[+] Author and Article Information
Roman Adinberg, Michael Epstein

Solar Research Facilities Unit, Weizmann Institute of Science, P.O. Box 26, Rehovot 76100, Israel

Jacob Karni

Department of Environmental Science and Energy Research, Weizmann Institute of Science, P.O. Box 26, Rehovot 76100, Israel

J. Sol. Energy Eng 126(3), 850-857 (Jul 19, 2004) (8 pages) doi:10.1115/1.1753577 History: Received July 01, 2003; Revised February 01, 2004; Online July 19, 2004
Copyright © 2004 by ASME
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Grahic Jump Location
Scheme of the experimental setup showing reactor components: (1) feeder, (2) gas-tight space, (3) gas outlet, (4) reactor tube, (5) thermocouple, (6) ceramic tube, and (7) ball valves
Grahic Jump Location
A photograph of cellulose tablets (1, 2) and remaining char particles (3, 4): (1, 4) front view and (2, 3) side view
Grahic Jump Location
Measurements and simulations of gas production rate related to the initial weight of cellulose as a function of residence time for cellulose particles of 1.0 g in pyrolysis with and without molten salt at 1123 K. The experimental particles are tablets, diameter 12 mm and thickness 7 mm; the modeling particles-spheres, diameter 11.5 mm. The time is measured from the moment when the particle is dropped into the reactor.
Grahic Jump Location
Measurements and simulations of gas production rate related to the initial weight of cellulose as a function of residence time for the cellulose particles of 0.25 g in pyrolysis with molten salt. The experimental particles are fragments of tablets (diameter 12 mm and thickness 7 mm), the modeling particles-spheres, diameter 7.2 mm. The time is measured from the moment when the particle is dropped into the reactor
Grahic Jump Location
Comparison of the model-derived thermal characteristics of a cellulose particle (10 mm diameter) at 1123 K for pyrolysis with and without molten salt
Grahic Jump Location
Model evaluation of the effects of molten salt temperature and particle size on mass conversion rate, which is the total change of the particle weight divided by the completion time of pyrolysis and the initial particle weight
Grahic Jump Location
Schematic representation of the solar reactor concept




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