TH6061B - Processes and machines for anhydrous ethanol production - Google Patents

Abstract

There is a process for the production of anhydrous ethanol using a concentrator, distillation tower, aceotropic and solvent recovery tower combined and can use steam at the top. The end of the concentrating tower and the aceotropic distillation tower effectively. The process consists of (i) connecting an absorption heat pump acting as a Condenser and reboiler at the same time with the tower Concentration or one of the distillation and zeotropic towers. (ii) Mechanical connection of the integrated heat pump. A heat exchanger that acts as a condenser. and the re-boiler at the same time to the other tower (iii) the use of a back pressure turbine as a propulsion moving the heat pump mechanically; and (iv) the use of back pressure steam generated by the mechanical heat pump as a source of heat for absorption heat pumps

Claims (4)

1. In the process for producing anhydrous ethanol from diluted ethanol raw materials using a machine consisting of a concentrating tower, an aciotrophic distillation tower, And reverse solvent separation tower The nights in this order are combined. Enhancement consisting of (i) the connection of an absorbent heat pump acting as Condensers and re-ballers at the same time into the tower, making (Ii) the connection of a mechanical heat pump integrated with the unit. A heat exchanger that acts as a condenser and (Iii) the use of a back-pressure turbine as a driving engine. And (iv) the use of the back pressure steam generated by the operation. The mechanical heat pump is a source of heat Hot for the aforementioned heat pumps. 2. Process of claim No. 1, where it is sufficiently intense It will be connected to the aforementioned heat pump. The IT top of the tower is condensed in the evaporator pump, part of the condensate is returned to the tower and the rest of the The substance will be fed to the acetic distillation tower. 3. Process of claim 1 where the pump The absorption heat is connected to the concentrate tower, the steam turbine compressor is connected to the condensing tower to zeotropic. Thereof and part of the steam back pressure thereof. The compressor is then fed back to the generator. Provided in the aforementioned heat pump to provide the The absorbent is diluted by vapor absorption of the cooling medium used in such a high-pressure apparatus under The circulation is concentrated, while the other part of the steam The return will be fed to the Reiler that is connected to the tower. Separate the solvent back. 4. A machine for anhydrous ethanol production consisting of Concentrate tower Aziotropic distillation tower and reverse solvent separation tower This sorted night is combined and where (i) the L-type absorbent heat pump acting as a condenser and re The boiler at the same time is attached to the tower to intensify it. Or one of the aforementioned azotropic distillation tower (ii) D-F mechanical heat pump combined with exchanger. Change the heat E that acts as a condenser and At the same time it is connected to another tower and (iii) the back-pressure turbine F of the pump. It is a mechanical heating machine for driving. The mechanical heat pump and (iv) the back pressure turbine is connected to the heat pump L by hoses 10 (4 claims, 2 faces, 2 figures).