Lurgi PSI, Inc. Patent applications |
Patent application number | Title | Published |
20110296744 | Ethyl Acetate As Fuel Or Fuel Additive - A fuel blend consisting of a hydrocarbon-containing fuel component; and ethyl acetate is provided. The hydrocarbon-containing fuel component may be gasoline, diesel, bioethanol or biodiesel. | 12-08-2011 |
20110092725 | Catalysis Of Fats And Oils To Alkyl Esters Using Hydrolysis As Pretreatment - A process that employs hydrolysis of fats and oils as a pretreatment step to prevent or drastically reduce the formation of glycerin decomposition products that occur in systems that use fixed bed or heterogeneous catalysts for simultaneous trans-esterification and esterification of fats and oils to alkyl esters of fatty acids for use as Biofuels, soaps, detergents, solvents or other applications of fatty acid alkyl esters. The pretreatment step is particularly effective for processes using fixed bed catalytic reactors operating at elevated temperatures and pressures sufficient to cause formation of decomposition products of glycerin which is known to be a problem associated with these processes. The pretreatment hydrolysis step allows the formation, separation and recovery of better quality glycerin by-product and minimizing the formation of glycerin decomposition products in the reactors. | 04-21-2011 |
20100004491 | Method Of Fuse Oil Decanting In An Ethanol Plant - An apparatus including an ethanol stream, wherein said ethanol stream contains greater than 5% of water; a dehydration means, wherein the water content of said ethanol stream is reduced to less than 5%; a desiccation means, wherein the water content of said ethanol stream is reduced to less than about 1%; a 200 proof receiver, wherein said 200 proof receiver comprises a sample port or a sensor to allow the percentage of water in the ethanol to be determined, and wherein said 200 proof receiver comprises an outlet; a heat exchanger to heat said ethanol stream with less than 1% water, and a mixing manifold downstream of said heat exchanger, wherein said heated ethanol stream with less than 1% water is combined with fusal oils from a fusal oil decanter is provided. | 01-07-2010 |
20100000850 | Method Of Improving Rectifier Column Performance In An Ethanol Plant - A method for improving rectifier column performance including positioning a temperature controller on the rectifier column feed tray, wherein said temperature controller is outside the fusel draw region, and controlling distillate composition or temperature, wherein said control is cascaded to the rectifier column flow control is provided. | 01-07-2010 |
20100000849 | Method Of Prevention Of Ethanol In Rectification Column Bottoms In An Ethanol Plant - A method for preventing ethanol buildup in a column including providing a column with a bottom temperature and a next temperature above the bottom; providing a first advisory, wherein said first advisory comprises a temperature difference between said bottom temperature and said next temperature above the bottom that exceeds a first predetermined value, wherein a first action is taken should this first advisory occur; providing a second advisory, wherein said second advisory comprises a temperature depression of said bottom temperature of a second predetermined value, wherein a second action is taken should this second advisory occur, and providing a third advisory, wherein said third advisory comprises a temperature depression of said bottom temperature of a third predetermined value, wherein a third action is taken should this third advisory occur is provided. | 01-07-2010 |
20100000719 | Method Of Preheating Beer In An Ethanol Plant - A method for preheating beer including providing a first heat exchanger, comprising a first outlet stream at a first temperature; providing a second heat exchanger, comprising a hot heat transfer stream, a first flow control valve situated within said hot heat transfer stream, a second outlet stream at a second temperature, a temperature sensor situated within said second outlet stream; wherein said first outlet fluid comprises a first inlet stream, and a second flow control valve situated within said first inlet stream; determining said second temperature with said temperature sensor; comparing said second temperature to a predetermined temperature range; performing an operation selected from the group consisting of: maintaining said first flow control valve in a closed position, and maintaining said second flow control valve in an open position, if said second temperature is within said predetermined temperature range, modulating said first flow control valve in order to effect heat transfer between said hot heat transfer fluid and said first inlet fluid, such that said second temperature within said predetermined temperature range, and maintaining said second flow control valve in an open position, determining if said second temperature is not within said predetermined temperature range if said first control valve is in the fully open position, and then closing said second flow control valve, closing said first flow control valve, and redirecting said first outlet stream away from said second heat exchanger is provided. | 01-07-2010 |
20100000576 | Method of Cleaning Beer Preheaters In An Ethanol Plant - A method for cleaning exchangers including providing a heat exchanger with a liquid contact side and a vapor contact side, providing acid to clean the liquid contact side, and providing caustic to clean the vapor contact side is provided. In the method, the exchanger may be a beer preheater. In the method, the acid may be sulfamic acid. In the method, the liquid contact side may be the beer side. In the method, the exchanger may be a plate-in-frame heat exchanger or a a shell-and-tube heat exchanger. In the method, the acid may be provided from a central storage tank. In the method, there may be a recirculation pump. In the method, the acid may be provided from a local storage tank. | 01-07-2010 |
20100000575 | Method Of On-Line Cleaning Of A Heat Exchanger In An Ethanol Plant - A method for on-line cleaning of a heat exchanger in an ethanol plant, including providing heat exchanger, wherein said heat exchanger has an inlet, and an internal surface, wherein said internal surface has accumulated undesired solids; providing an antifoaming agent to said inlet, during normal operation; providing a caustic to said inlet, during normal operation, and cleaning the internal surface of said accumulated undesired solids, during normal operation is provided. | 01-07-2010 |