EP 1088879 A1 20010404 - Process for the production of gasolines with improved octane number
Title (en)
Process for the production of gasolines with improved octane number
Title (de)
Verfahren zur Erzeugung von Benzin mit verbesserter Oktanzahl
Title (fr)
Procédé de production d'essences à indice d'octane amélioré
Publication
Application
Priority
FR 9912337 A 19990930
Abstract (en)
The process is operated with a charge comprising mainly straight chain paraffins obtained from a Fischer-Tropsch synthesis to produce high octane gasolines, middle distillates and oils. The process comprises the following stages :- a) Conversion with simultaneous hydrotreatment of the paraffins in the charge ; the charge has a S content less than 1000 ppm, N content less than 200 ppm, metal content less than 50 ppm and O2 content less than 0.2 %.The stage is operated at 200 - 500 degrees C., 5 - 25 MPa, and VVH of 0.1-5 h<->1 in the presence of a catalyst containing a noble metal on an acidic amorphous support ; from the effluent obtained, a petrol cut and residue comprising compounds boiling at more than 340 degrees C. are separated off ; b) Separation of the isoparaffins from the petrol cut obtained and recovery of an effluent containing n-paraffins ; c) Isomerisation of the effluent from (b) by contact with a catalyst containing a hydro-dehydrogenating metal an acid solid in the presence of hydrogen to produce an effluent containing isoparaffins of improved octane index ; b<1>) Catalytic de-paraffination of the residue with a catalyst comprising a molecular sieve with a microporous system consisting of channels with pore openings having 9 or 10 atoms T(T is Si, Al, P, B, Ti, Fe or Ga), alternating with an equal number of O atoms ; the distance between two pore openings accessible to 9 or 10 T atoms is no more than 0.75 nm and the product presents a ratio 2-methylnonane /5-methylnonane greater than 5 in the n-decane test.
Abstract (fr)
L'invention concerne un procédé pour la production d'essences à indice d'octane amélioré, accompagné éventuellement de production d'huiles et/ou de distillats moyens, par conversion - hydroisomérisation des paraffines de la charge sur un catalyseur contenant au moins un métal noble déposé sur un support acide amorphe. Sur la coupe essence obtenue les isoparaffines sont séparées et les paraffines normales et éventuellement les paraffines monobranchées contenues dans l'effluent résultant sont isomérisées sur un catalyseur contenant au moins un métal hydro-déshydrogérant et au moins un solide acide. L'ensemble des flux chargés en isoparaffines présentant un indice d'octane amélioré est envoyé au pool essence. Le résidu subit un déparaffinage catalytique. <IMAGE>
IPC 1-7
IPC 8 full level
B01J 29/67 (2006.01); B01J 29/74 (2006.01); B01J 35/10 (2006.01); C10G 25/00 (2006.01); C10G 31/09 (2006.01); C10G 35/085 (2006.01); C10G 45/62 (2006.01); C10G 45/64 (2006.01); C10G 47/14 (2006.01); C10G 65/04 (2006.01); C10G 65/12 (2006.01); C10G 67/02 (2006.01); C10G 67/06 (2006.01); C10L 1/06 (2006.01); C10L 10/10 (2006.01)
CPC (source: EP KR US)
C10G 65/043 (2013.01 - EP US); C10G 65/12 (2013.01 - EP KR US); C10G 67/02 (2013.01 - EP US); C10G 67/06 (2013.01 - EP US)
Citation (search report)
- [A] EP 0471524 A1 19920219 - EXXON RESEARCH ENGINEERING CO [US]
- [A] EP 0295638 A1 19881221 - UNION CARBIDE CORP [US]
- [A] EP 0583836 A1 19940223 - SHELL INT RESEARCH [NL]
- [A] EP 0280476 A2 19880831 - MOBIL OIL CORP [US]
Designated contracting state (EPC)
DE ES GB GR IT NL
DOCDB simple family (publication)
EP 1088879 A1 20010404; BR 0004550 A 20010417; FR 2799202 A1 20010406; FR 2799202 B1 20020426; JP 2001146592 A 20010529; KR 100695183 B1 20070319; KR 20010088289 A 20010926; US 6436278 B1 20020820
DOCDB simple family (application)
EP 00402632 A 20000922; BR 0004550 A 20000929; FR 9912337 A 19990930; JP 2000302136 A 20001002; KR 20000057589 A 20000930; US 67699200 A 20001002