METHOD OF HYDROCARBONS PROCESSING (VERSIONS) Russian patent published in 2005 - IPC

FIELD: petroleum refining industry; methods of separation of hydrocarbons at stabilization of petrol or conversion products of synthesis gas.

SUBSTANCE: the invention is pertaining to the field of petroleum refining industry, in particular, to the methods of separation of hydrocarbons at stabilization of gasoline or the synthesis gas processing products. The method of processing of hydrocarbons according to the first version includes feeding of the liquid hydrocarbons into the rectifying column, withdrawal from its lower part of the residue and from its upper part - of a steam-gaseous phase, which is cooled in the refrigerator-condenser and partially condensed. The produced gas-liquid mixture is separated for a condensate and a steam-gaseous phase. Then a part of the condensate taken in the capacity of a reflux is fed into the rectifying column, and the other part of the condensate taken as a distillate is withdrawn according its destination. At that the steam stripped steam-gaseous phase is fed into the recuperative heat exchanger and after condensation of a part of a steam-gaseous phase separate the produced condensation moisture. The separated gas phase is fed into a vortex pipe for its separation into a cold stream and a hot stream. At that the cold stream is directed into the recuperative heat exchanger as a cooling medium. The cold stream heated in the recuperative heat exchanger and the hot stream both are withdrawn in compliance with their destination and the condensate from the separator is mixed with the withdrawn distillate. According to the second version the method provides for feeding of the synthesis gas into the synthesis column and withdrawal from it of a gases mixture containing a synthesis product and the unreacted synthesis gas. The gases mixture is directed into the refrigerator-condenser, in which the synthesis product is condensed and then the mixture is separated for a condensate and a steam-gaseous phase. The condensate is withdrawn in compliance with its destination. One part of the steam-gaseous phase is used as a blowdown gas, and the other part is returned into the synthesis column for reprocessing. At that the blowdown gas is directed into the recuperative heat exchanger, in which a part of the blowdown gas is condensed. Then the condensate is separated from the gas phase. The produced gas phase is fed into the vortex pipe, where the gas phase is separated for a cold stream and a hot stream. The cold stream is fed into the recuperative heat-exchanger as a medium for cooling the blowdown gas. The cold stream heated in the heat exchanger and the hot stream both are withdrawn as required. The blowdown gas condensate is withdrawn from the separator and fed to the consumer. The technical effect is increased efficiency of the hydrocarbons processing, decreased losses of products at their separation.

EFFECT: the invention ensures increased efficiency of the hydrocarbons processing, decreased losses of products at their separation.

4 cl, 2 dwg