Abstract: A process for making furfural, derivatives of furfural, or both from biomass is described. The biomass feed is optionally conditioned to obtain a moisture content of 25 wt % or less. The biomass feed is ground to form particles having a particle size in a range of 0.02 mm to 7 mm with 5 wt % or less being 75 microns or less, and an average aspect ratio of 0.4 or more. The ground biomass feed is blanketed with an inert gas having an oxidant or oxygen content of 5 mol % or less. The ground biomass feed is reacted in the presence of water, a water-immiscible organic solvent, and an acid catalyst to form a reaction product mixture comprising furfural, derivatives of furfural, or both.

Abstract: A porous biomass support system in a fixed bed reactor configuration affords biodegradation of phenolic materials to a level under 20 parts per billion at an hydraulic residence time of about 15 hours with significantly less sludge formation currently possible by available methods. The porous biomass support system utilizes an open-celled foam within which is entrapped small particles of porous activated carbon and suitable microorganisms. The carbon is self-regenerative and does not have to be periodically replaced or replenished. The entire porous biomass support system can operate for extended periods of time without replacement.