公开(公告)号：US3557530A

公开(公告)日：1971-01-26

申请号：US3557530D

申请日：1970-01-21

Applicant: HOECHST AG

Inventor： VOIGT HARTMUT ,  MALOW EGON ,  WETZEL WALTER ,  SCHNECK ERICH

IPC: C07C7/11 ,  B01D19/00

CPC classification number: C07C7/11 ,  C07C11/24

Abstract: Process for the separation of acetylene from gases obtained by pyrolysis by absorption by means of a high boiling solvent which absorbs acetylene selectively and by subsequent desorption, in which the portions of the gas components absorbed by the solvent are again expelled in several stages, partly with the use of stripping gases.

公开(公告)号：CA624901A

公开(公告)日：1961-08-01

申请号：CA624901D

Applicant: HOECHST AG

Inventor： SCHWENK ULRICH ,  SCHNECK ERICH

公开(公告)号：CA952545A

公开(公告)日：1974-08-06

申请号：CA105594

申请日：1971-02-17

Applicant: HOECHST AG

Inventor： VOIGT HARTMUT ,  SCHNECK ERICH ,  GUENTHER KLAUS ,  NOHA KLAUS

IPC: B01D51/10 ,  C10G9/00 ,  F28C3/06

Abstract: In a process for the production of acetylene and/or lower olefins from hydrocarbons the enthalpy of cracked gas is recovered in two stages by an oil wash. In the first stage of the oil wash using temperatures within the boiling range of the wash oil and approximately atmospheric pressures, a cycle of high-boiling oil components is maintained and condensed lower boiling oil components which are recycled from the second wash stage are directly vaporized by the cracked gases. The saturated mixture of oil vapor and cracked gases formed in the first stage is fed to the second wash stage and condensed therein by indirect cooling.