公开(公告)号：JP2000273470A

公开(公告)日：2000-10-03

申请号：JP31575499

申请日：1999-09-30

Applicant: BASF AG

Inventor： LAIB HEINRICH ,  JENNE ERIC ,  VEER VIKTOR ,  KUEHN HEINZ-JUERGEN ,  KAISER WULF ,  GERBER BERND

IPC: B01D53/18 ,  B01D53/14 ,  C10G9/36 ,  C10G19/00 ,  C10G35/24 ,  C10G55/04 ,  C10G70/06

Abstract: PROBLEM TO BE SOLVED: To provide a removing method of CO2 and H2S from a crude gas obtained by cracking of naphtha, by which a serious disadvantage causing adverse consequence in polymer formation (sedimentation in the discharge shaft, blockage of the inlet channel) can be avoided. SOLUTION: This method uses an absorption column having tunnel trays whose gas passage openings are fitted with chimneys arranged in hoods, where the heights of the respective chimneys are above the height of a shaft outlet, for removing CO2 and H2S from an ethene- and propene-enriched crude gas obtained by naphtha cracking by wet chemical washing with caustic lyes.

公开(公告)号：DE19845274A1

公开(公告)日：2000-04-20

申请号：DE19845274

申请日：1998-10-01

Applicant: BASF AG

Inventor： LAIB HEINRICH ,  JENNE ERIC ,  VEER VIKTOR ,  KUEHN HEINZ-JUERGEN ,  KAISER WULF ,  GERBER BERND

IPC: B01D53/18 ,  B01D53/14 ,  C10G9/36 ,  C10G19/00 ,  C10G35/24 ,  C10G55/04 ,  C10G70/06 ,  C10G47/32

Abstract: Process for removing carbon dioxide and hydrogen sulfide from naphtha cracking gas enriched with ethene and propene comprises wet chemical scrubbing with alkali in absorption columns with tunnel plates, whose gas through-holes are provided with chimneys (5) arranged in hoods (4). The height of each chimney is more than the height of the shaft outlet.

公开(公告)号：CA3195680A1

公开(公告)日：2022-03-31

申请号：CA3195680

申请日：2021-09-10

Applicant: LINDE GMBH ,  BASF AG

Inventor： HOFSTATTER MARTIN ,  DELHOMME-NEUDECKER CLARA ,  POSSELT HEINZ ,  FLEISCHMANN NIKLAS ,  KOCHENDORFER KIARA AENNE ,  JENNE ERIC ,  SHUSTOV ANDREY ,  STILL WERNER JOSEF ,  STARK TORSTEN

IPC: B01J8/06 ,  B01J19/24

Abstract: What is provided is a device for conducting a chemical reaction in a process fluid in a production facility that has at least one grounding connection connected to ground. The device comprises a reactor having one or more reaction tubes that are guided into the reactor and out of the reactor via at least one infeed section and at least one discharge section, respectively, and that have a number of tube sections that are able to be heated electrically and that are connected to one another in a current output area by an electrically conductive star bridge, and at least one current source that is designed to provide a multiphase AC current having N phases on N phase lines at a predetermined voltage, wherein N is an integer greater than or equal to 2 and wherein it is the case, for any two phases, that a phase shift between the two phases is 2p·k/N, wherein k is in each case an integer in the range from 1 to N-1. Provision is made, for each of the at least one current sources, for a number N of current connections that are each connected, in a current infeed area, to at least one of the pipe sections, wherein each of the current connections is connected to one of the phase lines of the current source, wherein a star point is formed in the at least one current source, the phase lines of the current source being connected to said star point, wherein the star point is not connected to a grounding connection.