TH136262A - Hydrocarbon gas processing - Google Patents

Abstract

DC60 (19/3/55) Process and equipment for recovery of heavier hydrocarbons from gas currents. Hydrocarbons have been disclosed. The gas currents are cooled and divided into first and second currents. The first stream is further cooled and is divided into the first and the second. The first and second sections were expanded to the pressure of the holding chamber separating the product by its boiling point. After the second part was heated, the second stream was expanded to the tower pressure and supplied at the feed position in the center of the column. The impulse vapor stream is drawn above the feed point of the second current. Is combined with the upper part of the tower Being pressed to a higher pressure And cooled to condense at least one part of the vapor stream. Which creates a condensed current At least one portion of the condensed current is expanded to the tower pressure and directed to the tower as above feeding.

Claims (1)

Disclaimer (all) which will not appear on the advertisement page: Amendment 9 Oct. '18 Claims 1. In a process for the separation of gas streams containing methane, C2, C3 and heavier hydrocarbon components into gaseous parts. The volatile residues and the volatile content were somewhat less than those containing the main C2 component, C3 component, and heavier hydrocarbon component. Or C3 component and heavier hydrocarbon component mentioned above. In this process: (a) the aforementioned gas current is cooled under pressure so that the cooled current (b) the above cooled current is expanded to a lower pressure point. At the stream And (c) the aforementioned additional cooled stream is brought into the distillation column and distilled. The product is separated by boiling point at a lower pressure, where relatively fewer components of the volatile component are recovered for improvement primarily through cooling. The aforementioned cooled currents are divided into The first and second currents and (1) the aforementioned first currents were cooled to condense all of them literally. (2) The first truly condensed currents were divided into condensed sections. The first and at least (3) the second condensation. The first condensed part was expanded to a lower pressure. This is where the section is further cooled. And after that it is supplied to the aforementioned distillation column. At the feed position higher than the center of the column (4), the second condensed part above is expanded to a lower pressure. This is where the section is further cooled. And after that it is supplied to the aforementioned distillation column. (5) at the feed position higher than the center column (5), the second current expands to a lower pressure than the above and is supplied to the (6) The aforementioned distillation column at the center of the column feed position is higher than the center of the aforementioned column (6). The vapor was divided into at least the first and second vapor (7). The second mentioned steam was heated. After that released the second part that was At least one of the above is heated as a volatile residual gas. (8) The vapor stream of the distillation is drawn from one area of the aforementioned distillation column. Below the feed position is higher than the center of the aforementioned column and above the feed position in the center of the aforementioned column and is combined with the aforementioned first vapor section to create a combined vapor stream (9). To a higher pressure (10), the aforementioned compressed combined current was cooled enough to condense the vapor stream. Such as at least part of it to generate condensed current while supplying at least one heating. Parts of steps (4) and (7) (11) at least one of the aforementioned condensed currents is expanded to a lower pressure than the foregoing and thereafter supplied to the said distillation column. Come to the top feed position and (12) the amount and temperature of the aforementioned feed currents being fed to the distillation column at The aforementioned distillation column is effective in keeping the upper temperature of the aforementioned distillation column at the temperature where the main part of the components is. The relatively less volatile parts of the above were recovered.