Abstract: An apparatus for extraction and recovery of components from biomass feedstocks with pressurized low polarity water. The apparatus is configured with four or more reaction columns, wherein each column is in separate communication with a supply of hot water, a first supply of pressurized heated water, a second supply of pressurized heated water, and a supply of pressurized cooling water. Components may be extracted concurrently from two or more batches of the biomass by, first placing the two batches of biomass into two selected columns, separately flooding the two columns with pressurized water, heating the columns and their contents to the point where the water becomes pressurized low polarity (PLP) water, recovering the PLP water comprising the extracted components from the two selected columns, cooling the columns with PLP water, and removing the spent biomass material from the columns.

Abstract: An apparatus for extraction and recovery of components from biomass feedstocks with pressurized low polarity water. The apparatus is configured with four or more reaction columns, wherein each column is in separate communication with a supply of hot water, a first supply of pressurized heated water, a second supply of pressurized heated water, and a supply of pressurized cooling water. Components may be extracted concurrently from two or more batches of the biomass by, first placing the two batches of biomass into two selected columns, separately flooding the two columns with pressurized water, heating the columns and their contents to the point where the water becomes pressurized low polarity (PLP) water, recovering the PLP water comprising the extracted components from the two selected columns, cooling the columns with PLP water, and removing the spent biomass material from the columns.