Global Patent Index - EP 1254198 A1

EP 1254198 A1 2002-11-06 - QUENCHING DEWAXING REACTOR WITH HEAVY DEWAXATE RECYCLE

Title (en)

QUENCHING DEWAXING REACTOR WITH HEAVY DEWAXATE RECYCLE

Title (de)

HÄERTUNG VON ENTWACHSUNGSREAKTOR DURCH RÜCKFÜHRUNG SCHWERER REAKTIONSPRODUKTE

Title (fr)

REACTEUR DE DEPARAFFINAGE A REFROIDISSEMENT AVEC RECYCLAGE DE DEPARAFFINAT LOURD

Publication

EP 1254198 A1 (EN)

Application

EP 01903113 A

Priority

  • US 0101703 W
  • US 49743900 A

Abstract (en)

[origin: WO0157158A1] During catalytic dewaxing of paraffinic hydrocarbons, the exothermic catalytic dewaxing reaction is moderated by separating and cooling a heavy dewaxate having an initial boiling point of at least 800 DEG F+, and recycling it back into the dewaxing zone as quench liquid. The heavy dewaxate reacts very little, if at all, with the hydrogen in the dewaxing zone. This has been found to be particularly useful for dewaxing hydroisomerized, paraffinic Fischer-Tropsch synthesized, hydrocarbons.

IPC 1-7 (main, further and additional classification)

C10G 45/58; C10G 65/04

IPC 8 full level (invention and additional information)

B01J 3/00 (2006.01); C10G 2/00 (2006.01); C10G 45/58 (2006.01); C10G 45/60 (2006.01); C10G 45/62 (2006.01); C10G 45/64 (2006.01); C10G 65/04 (2006.01); C10G 65/12 (2006.01); C10G 67/02 (2006.01); C10G 73/34 (2006.01)

CPC (invention and additional information)

C10G 65/043 (2013.01); C10G 45/58 (2013.01)

Citation (search report)

See references of WO 0157158A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0157158 A1 20010809; AR 029033 A1 20030604; AT 322529 T 20060415; AU 3097001 A 20010814; AU 778654 B2 20041216; BR 0108018 A 20021029; CA 2397810 A1 20010809; CA 2397810 C 20100427; DE 60118528 D1 20060518; DE 60118528 T2 20061102; DK 1254198 T3 20060731; EP 1254198 A1 20021106; EP 1254198 B1 20060405; ES 2261375 T3 20061116; JP 2003522250 A 20030722; MY 137743 A 20090331; NO 20023683 A 20020927; NO 20023683 D0 20020802

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- Inventor name: DEAN, CHRISTOPHER, M.

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- Inventor name: WITTENBRINK, ROBERT, JAY

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- Inventor name: RYAN, DANIEL, FRANCIS

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