WO2002097013A1 - Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence - Google Patents

Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence Download PDF

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Publication number
WO2002097013A1
WO2002097013A1 PCT/US2001/016977 US0116977W WO02097013A1 WO 2002097013 A1 WO2002097013 A1 WO 2002097013A1 US 0116977 W US0116977 W US 0116977W WO 02097013 A1 WO02097013 A1 WO 02097013A1
Authority
WO
WIPO (PCT)
Prior art keywords
gasoline
catalyst
riser
zone
secondary feed
Prior art date
Application number
PCT/US2001/016977
Other languages
English (en)
Inventor
Lawrence L. Upson
Julie E. Wesling
Original Assignee
Uop Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uop Llc filed Critical Uop Llc
Priority to DE60134789T priority Critical patent/DE60134789D1/de
Priority to PCT/US2001/016977 priority patent/WO2002097013A1/fr
Priority to EP01939444A priority patent/EP1390446B1/fr
Priority to CN01823403.8A priority patent/CN1223653C/zh
Priority to AT01939444T priority patent/ATE400629T1/de
Publication of WO2002097013A1 publication Critical patent/WO2002097013A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
    • C10G11/18—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised-bed" technique

Definitions

  • US-A 3,776,838 shows the cracking of a naphtha stream in a fluidized catalytic cracking process.
  • Regenerated catalyst from a catalyst regenerator 10 (shown schematically) is transferred by a conduit 12, to a Y-section 14.
  • Lift gas injected into the bottom of Y-section 14, by a conduit 16 carries the catalyst upward through a lower riser section 18.
  • Traditional FCC feed is injected into the riser above lower riser section 18 at feed injection points 20.
  • the mixture of feed, catalyst and lift gas travels up an intermediate section 22 of the riser and into an upper internal riser section 24 that terminates in an upwardly directed outlet end 26.
  • Riser end 26 is located in a separation device 28 which in turn is located in a reactor vessel 30.
  • stripping zone 63 communicates directly with the bottom of reactor vessel 30 and more preferably has a sub-adjacent location relative thereto.
  • steam or another stripping medium from a distributor 64 rises countercurrently and contacts the catalyst to increase the stripping of adsorbed components from the surface of the catalyst.
  • a conduit 66 conducts stripped catalyst into catalyst regenerator 10 which combustively removes coke from the surface of the catalyst to provide regenerated catalyst.
  • the countercurrently rising stripping medium desorbs hydrocarbons and other sorbed components from the catalyst surface and pore volume. Stripped hydrocarbons and stripping medium rise through bed 52 and combine with the secondary feed and any resulting products in the dilute phase section 74 of reactor vessel 30 to form a reactor vessel product stream.
  • the products from the reactor vessel reaction zone are recovered with minimal intermixing of the riser product stream. Therefore, a separate outlet can be provided for the recontacted gasoline that has been upgraded in the secondary zone and that outlet withdraws a stream of at least 90 wt-% recontacted gasoline and less than 10 wt-% of the riser gaseous products.
  • US-A 5,310,477 discloses a riser separation arrangement that can provide a recovery of over
  • the secondary feed may contact the spent catalyst in any type of contacting zone that will provide sufficient contact time and the desired low severity conditions. It is contemplated that a separation device will supply the catalyst for contacting the secondary feed.
  • the separation device will ordinarily have a location in an upper portion of the reactor vessel. As shown in the FIGURE, catalyst from the such a separation device may drop downwardly into the dense bed 52 that is maintained in a lower portion of reactor vessel 30 and referred to as the reactor vessel reaction zone.
  • the main column or other fluid separation zone generally separates the gaseous product stream from the riser into a first product stream comprising light gasoline having an end boiling point at least below 121 °C (250°F); a gasoline heart cut having an 80 wt-% boiling point of at least 93 °C (200°F) and an end point below 204°C (400°F); a heavy gasoline having an initial boiling point greater than 177°C (350°F) and an end boiling point of at least 204°C (400°F), and a first cycle oil stream and heavier fractions having an initial boiling point above the end point of the gasoline feed.
  • a first product stream comprising light gasoline having an end boiling point at least below 121 °C (250°F); a gasoline heart cut having an 80 wt-% boiling point of at least 93 °C (200°F) and an end point below 204°C (400°F); a heavy gasoline having an initial boiling point greater than 177°C (350°F) and an end boiling point of at least 204
  • the degree of hydrocarbon rearrangement is surprising considering the small amount of conversion (13 wt-%) that occurred. Furthermore, the amount of full range gasoline (C5 to 232°C (450°F)) recovered after recracking is 95 wt-% of the starting 121° to 177°C (250° to 350°F) gasoline. Most of the aromatic product can be accounted for as Cg aromatics.
  • the feed contained 24 wt-% Cg aromatics and 29 wt-% C9 aromatics.
  • the liquid product contained over 85 wt-% Cg aromatics on a fresh feed basis, out of a total of 89 wt-% total aromatics.

Abstract

L'invention concerne un procédé de craquage catalytique fluide, qui transforme une alimentation secondaire comprenant le coeur d'un flux de produit d'essence avec un catalyseur épuisé dans des conditions modérées, afin d'obtenir une augmentation insoupçonnée de l'indice d'octane du produit d'essence résultant. Plus étonnant encore, l'augmentation de l'indice d'octane du produit d'essence s'accompagne d'une très faible production de gaz sec. L'on a découvert que le fait de limiter la présence de constituants d'essence lourde augmente considérablement l'indice d'octane résultant du procédé.
PCT/US2001/016977 2001-05-25 2001-05-25 Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence WO2002097013A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE60134789T DE60134789D1 (de) 2001-05-25 2001-05-25 Fcc-verfahren zur aufwertung von benzin im mittleren siedebereich
PCT/US2001/016977 WO2002097013A1 (fr) 2001-05-25 2001-05-25 Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence
EP01939444A EP1390446B1 (fr) 2001-05-25 2001-05-25 Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence
CN01823403.8A CN1223653C (zh) 2001-05-25 2001-05-25 用于提高汽油中心馏分质量的流化催化裂化方法
AT01939444T ATE400629T1 (de) 2001-05-25 2001-05-25 Fcc-verfahren zur aufwertung von benzin im mittleren siedebereich

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2001/016977 WO2002097013A1 (fr) 2001-05-25 2001-05-25 Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence

Publications (1)

Publication Number Publication Date
WO2002097013A1 true WO2002097013A1 (fr) 2002-12-05

Family

ID=21742595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/016977 WO2002097013A1 (fr) 2001-05-25 2001-05-25 Procede de craquage catalytique fluide destine a valoriser une fraction de coeur d'essence

Country Status (5)

Country Link
EP (1) EP1390446B1 (fr)
CN (1) CN1223653C (fr)
AT (1) ATE400629T1 (fr)
DE (1) DE60134789D1 (fr)
WO (1) WO2002097013A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2008726B1 (fr) * 2007-06-29 2013-08-14 Eurecat Sa. Tri de particules de catalyseur ou de particules absorbantes par couleurs
CN102206505A (zh) * 2011-04-26 2011-10-05 中国石油大学(北京) 催化裂化工艺中汽提油气单独引出的装置
CA3008603A1 (fr) * 2015-12-17 2017-06-22 Exxonmobil Research And Engineering Company Craquage catalytique fluide de residus d'huiles de reservoir compact

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894934A (en) * 1972-12-19 1975-07-15 Mobil Oil Corp Conversion of hydrocarbons with mixture of small and large pore crystalline zeolite catalyst compositions to accomplish cracking cyclization, and alkylation reactions
US4032432A (en) * 1975-08-28 1977-06-28 Mobil Oil Corporation Conversions of hydrocarbons
US5310477A (en) * 1990-12-17 1994-05-10 Uop FCC process with secondary dealkylation zone
US6238548B1 (en) * 1999-09-02 2001-05-29 Uop Llc FCC process for upgrading gasoline heart cut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894934A (en) * 1972-12-19 1975-07-15 Mobil Oil Corp Conversion of hydrocarbons with mixture of small and large pore crystalline zeolite catalyst compositions to accomplish cracking cyclization, and alkylation reactions
US4032432A (en) * 1975-08-28 1977-06-28 Mobil Oil Corporation Conversions of hydrocarbons
US5310477A (en) * 1990-12-17 1994-05-10 Uop FCC process with secondary dealkylation zone
US6238548B1 (en) * 1999-09-02 2001-05-29 Uop Llc FCC process for upgrading gasoline heart cut

Also Published As

Publication number Publication date
ATE400629T1 (de) 2008-07-15
DE60134789D1 (de) 2008-08-21
EP1390446B1 (fr) 2008-07-09
CN1520453A (zh) 2004-08-11
EP1390446A1 (fr) 2004-02-25
CN1223653C (zh) 2005-10-19

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