8-07: Rheological Understanding of High Biomass Loaded Pretreated Slurries

Tuesday, May 1, 2012
Napoleon Ballroom C-D, 3rd fl (Sheraton New Orleans)
Alejandro G. Cruz, Chen Mu, Chessa Scullin, Patanjali Varanasi, Blake A. Simmons and Seema Singh, Deconstruction Division, Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
Lignocellulosic biomass must be pretreated  prior to enzymatic hydrolysis to improve sugar yields and saccharification efficiency. Ionic liquid (IL) has shown great potential as a novel pretreatment technology with sugar yields as high as ~100%. However, to decrease production costs higher biomass loading is necessary in conjunction with efficient means of pumping pretreated biomass slurry.  Here we investigate the viscosity of pretreated switchgrass slurry in ionic liquid as a function of solids loading. Viscosity measurements provide a detailed profile of biomass solubilization and the effects of high biomass loading.
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