Figueroa, C., Akse, J., Lunsford, T., and Fisher, J., "Biomass Conversion to Pumpable Slurries," SAE Technical Paper 981757, 1998, doi:10.4271/981757.
Author(s):
Carlos Figueroa - Umpqua Research Co.
James R. Akse - Umpqua Research Co.
Ted Lunsford - Umpqua Research Co.
John W. Fisher - NASA-Ames Research Center
Abstract:
The inedible portion of plant biomass in closed regenerative life support systems must be reprocessed producing recyclable by-products such as carbon dioxide, sugars, and other useful organic species. High solids biomass slurries containing up to 27 wt% were successfully prepared in a stirred batch reactor and then pumped using a single piston valveless pump. Wheat straw, potato, and tomato crop residues were acid hydrolyzed using 1.2 wt% sulfuric acid at 180°C and 1.2 MPa for 0.75-1.5 hours. Viscosity for a 25 wt% acid hydrolyzed wheat straw emulsion (Bingham-plastic) was 6.5 centipoise at 3 cm/sec and 25°C.
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