Abstract:
A DECANTING APPARATUS WITH HEAT EXCHANGER AND QUIESCENT CHAMBERS IS DESCRIBED. THE INLET CHAMBER IS CONNECTED VIA A PRODUCT CHAMBER OF A SPIRAL HEAT EXCHANGER TO A DISCHARGE CHAMBER DISPOSED ROUND THE HEAT EXCHANGER, THE SAID PRODUCT CHAMBER BEING NARROW AS COMPARED TO ITS HEIGHT AND BEING ARRANGED IN SEVERAL TURNS ROUND THE INLET CHAMBER.
Abstract:
IMPROVEMENT IN THE PROCESS FOR ISOLATING CARBON DIOXIDE AND ACETYLENE FROM CRACKED GASES WHICH SUBSTANTIALLY CONTAIN HYDROGEN, CARBON MONOXIDE, METHANE, CARBON DIOXIDE, ETHYLENE AND ACETYLENE, BY MULTISTAGE WASHINGS USING ACETONE AND DIMETHYLFORMAMIDE AS SOLVENTS.
Abstract:
A PROCESS IS DESCRIBED FOR THE ISOLATION OF CARBON DIOXIDE AND ACETYLENE FROM A CRACKED GAS BY MULTISTAGE WASHINGS USING ACETONE AND DIMETHYLFORMAMIDE, WHEREIN THE CRACKED GAS IS FIRST WSASHED WITH ACETON, THEN ACETYLENE, CARBON DIOXIDE AND ETHYLENE ARE EXPELLED FROM THE
ACETONE SOLUTION BY RELEASE FROM PRESSURE AND THE ACETYLENE IS WASHED OUT OF THIS MIXTURE WITH DIMETHYLFORMAMIDE.
Abstract:
A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.
Abstract:
Water is separated by distillation from organic multiple component mixtures containing at least one component partly miscible with water. The component miscible with water is distilled azeotropically with the water contained in the mixture, the distillate is separated into water and a zeotrope forming agent and the latter is recycled to the distilling column. In the recycling process, one part of the azeotrope forming agent is conducted to the top of the column and the other part is fed into the column at the feed mixture inlet or at a location thereunder.
Abstract:
A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.
Abstract:
A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.