Abstract: A process separates pure components from a product mixture produced by a one-step dimethyl ether synthesis reactor. The product mixture is scrubbed with pure dimethyl ether followed by scrubbing with aqueous methanol solvent in two absorption columns to reduce CO2 level and to minimize methanol and dimethyl ether loss with the recovered unconverted synthetic gas. The pure water or aqueous methanol is mixed with the vapor stream of CO2 separation distillation. Dimethyl ether, methanol and water mixture are separated. A scheme for separation of methanol and water mixture minimizes the size, energy and cost of separation. The process can be cost-effective, energy-efficient, environment-friendly and readily-miniaturized.

Abstract: A method for significant increase in gas oil yield and energy efficiency in crude oil distillation is provided. The present invention relates to a method of separating the components of crude oil. This method utilizes the innovative and novel application of lighter fraction of crude through its superheating and its injection in the stripping section consisting of bottom to flash zone of main distillation column. Method also illustrates the innovative utilization of water in crude distillation unit to eliminate the bottom striping steam and for significant energy saving.

Abstract: A process separates pure components from a product mixture produced by a one-step dimethyl ether synthesis reactor. The product mixture is scrubbed with pure dimethyl ether followed by scrubbing with aqueous methanol solvent in two absorption columns to reduce CO2 level and to minimize methanol and dimethyl ether loss with the recovered unconverted synthetic gas. The pure water or aqueous methanol is mixed with the vapor stream of CO2 separation distillation. Dimethyl ether, methanol and water mixture are separated. A scheme for separation of methanol and water mixture minimizes the size, energy and cost of separation. The process can be cost-effective, energy-efficient, environment-friendly and readily-miniaturized.

Abstract: A method for significant increase in gas oil yield and energy efficiency in crude oil distillation is provided. The present invention relates to a method of separating the components of crude oil. This method utilizes the innovative and novel application of lighter fraction of crude through its superheating and its injection in the stripping section consisting of bottom to flash zone of main distillation column. Method also illustrates the innovative utilization of water in crude distillation unit to eliminate the bottom striping steam and for significant energy saving.