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Quang A Nguyen, Fred A Keller, Melvin P Tucker: Ethanol production with dilute acid hydrolysis using partially dried lignocellulosics. Midwest Research Institute, Paul J White, December 9, 2003: US06660506 (69 worldwide citation)

A process of converting lignocellulosic biomass to ethanol, comprising hydrolyzing lignocellulosic materials by subjecting dried lignocellulosic material in a reactor to a catalyst comprised of a dilute solution of a strong acid and a metal salt to lower the activation energy (i.e., the temperature) ...


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Fred A Keller, Quang A Nguyen: Pentose fermentation of normally toxic lignocellulose prehydrolysate with strain of Pichia stipitis yeast using air. Paul J White Senior Counsel, National Renewable Energy Laboratory, November 1, 2001: US20010036659-A1

Strains of the yeast Pichia stipitis NPw9 useful for the production of ethanol using oxygen for growth while fermenting normally toxic lignocellulosic prehydrolysates.


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Quang A Nguyen, Fred A Keller, Melvin P Tucker: Ethanol production with dilute acid hydrolysis using partially dried lignocellulosics. Paul J White, Senior Counsel, October 23, 2003: US20030199049-A1

In a process for converting lingnocellulosic biomass to ethanol, the improvement of obtaining higher fermentable soluble sugar yields by drying acid impregnated biomass particles, comprising: a) feeding moist lignocellulosic biomass into an acid impregnator to render it acid-soaked and draining the ...



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