Food Processing: Venturi Scrubber and Separator Cuts Steam Costs New Solutions to Plant Problems: Soybean extraction at Land 0 ‘ Lakes, Inc., Sheldon, IA, is an energy- intensive operation. Beans must be cleaned, properly dried, tempered, cleaned a second time, fragmented, and heat-conditioned to increase smface area and distort cell walls. On the extraction side of the process, soybean flakes are extracted by repeated countercurrent percolation of hexane solvent in either a continuous or continuous-batch extractor. Energy demand for this soy processing operation is about 1000 lb of steam/ton of soybeans processed. Steam costs approximately $4.20/1000 lb. White flakes (oil extracted) are desolventized by sparging with steam. Flakes are then toasted by tray cookers, which denatures the prot

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