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.