EP1015529A4 - Procede ameliore d'obtention de rendements importants d'olefine a partir de charges d'alimentation residuelles - Google Patents
Procede ameliore d'obtention de rendements importants d'olefine a partir de charges d'alimentation residuellesInfo
- Publication number
- EP1015529A4 EP1015529A4 EP97931426A EP97931426A EP1015529A4 EP 1015529 A4 EP1015529 A4 EP 1015529A4 EP 97931426 A EP97931426 A EP 97931426A EP 97931426 A EP97931426 A EP 97931426A EP 1015529 A4 EP1015529 A4 EP 1015529A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- solids
- reaction zone
- zone
- feedstock
- contact time
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/20—C2-C4 olefins
Definitions
- Residual feedstocks which are suitable for use in the present invention are those petroleum fractions boiling above about 480°C, preferably above about 540°C, more preferably above about 560°C.
- Non-limiting examples of such fractions include vacuum resids, atmospheric resids, heavy and reduced petroleum crude oil; pitch; asphalt; bitumen; tar sand oil; shale oil; coal; coal slurries; and coal liquefaction bottoms. It is understood that such residual feedstocks may also contain minor amounts of lower boiling material.
- feedstocks typically cannot be used as feeds to steam crackers to produce olefinic products because they excessively coke.
- Such feeds will typically have a Conradson carbon content of at least 5 wt.%, generally from about 5 to 50 wt.%. As to Conradson carbon residue, see ASTM Test D 189- 165.
- Olefinic products are produced from the residual feedstocks in accordance with the present invention in a short vapor contact time process unit which is comprised of a heating zone, a short vapor contact time horizontal fluidized bed reaction zone and a stripping zone.
- a short vapor contact time process unit which is comprised of a heating zone, a short vapor contact time horizontal fluidized bed reaction zone and a stripping zone.
- a residual feedstock is fed via line 10 to one or more short vapor contact time reaction zones 1 which contains a horizontal moving bed of fluidized hot solids.
- the solids in the short vapor contact time reactor be fluidized with assistance by a mechanical means.
- the particles are fluidized by use of a fluidizing gas, such as steam, a mechanical means, and by the vapors which result in the vaporization of a fraction of the feedstock.
- the mechanical means be a mechanical mixing system characterized as having a relatively high mixing efficiency with only minor amounts of axial backmixing. Such a mixing system acts like a plug flow system with a flow pattern which ensures that the residence time is nearly equal for all particles.
- the most preferred mechanical mixer is the mixer referred to by Lurgi AG of Germany as the LR-Mixer or LR-Flash Coker which was originally designed for processing oil shale, coal, and tar sands.
- the LR-Mixer consists of two horizontally oriented rotating screws which aid in fluidizing the particles.
- the solid particles be coke particles, they may also be any other suitable refractory particulate material.
- Non-limiting examples of such other suitable refractory materials include those selected from the group consisting of silica, alumina, zirconia, magnesia, mullite, synthetically prepared or naturally occurring material such as pumice, clay, kieselguhr, diatomaceous earth, bauxite, and the like. It is within the scope of the present invention that the solids can be inert or have catalytic properties. The solids will have an average particle size of about 40 microns to 2,000 microns, preferably from about 50 microns to about 800 microns.
- the olefin portion of the product stream obtained by the practice of the present invention will typically be comprised of about 5 to 15 wt.%, preferably about 7 to 10 wt.% methane; about 10 to 20 wt.%, preferably about 12 to 18 wt.% ethylene; and about 5 to 15 wt.%, preferably 7 to 12 wt.% propylene, based on the feed.
- the vaporized fraction is passed via line 11 to cyclone 20 where most of the entrained solids, or dust, is removed.
- the dedusted vapors are then passed to quench zone 13 via line 24 where the vapors are reduced to temperatures below which substantial thermal cracking occurs. This temperature will preferably be below about 450°C, more preferably below about 340°C.
- Solids, having carbonaceous material deposited thereon are passed from reaction zones 1 via lines 15 to the bed of solids 17 in stripper 3. The solids pass downwardly through the stripper and past a stripping zone at the bottom section where any remaining volatiles, or vaporizable material, are stripped from the solids with use of a stripping gas, preferably steam, introduced into the stripping zone via line 16.
- a stripping gas preferably steam
- Stripped vapor products pass upwardly in stripper vessel 3, through line 22 to cyclone 20 to quench zone 13 via line 24 where a light product, containing a substantial amount of olefins, is removed overhead via line 28.
- the light product will typically be a 510°C minus product stream.
- This 510° C minus product stream will typically contain about 7 to 10 wt.% methane, 12 to 18 wt.% ethylene, and 7 to 12 wt.% propylene, and 6 to 9 wt.% unsaturated C 4 's, such as butanes and butadienes, based on the total weight of the feed.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1997/011108 WO1998059018A1 (fr) | 1997-06-25 | 1997-06-25 | Procede ameliore d'obtention de rendements importants d'olefine a partir de charges d'alimentation residuelles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1015529A1 EP1015529A1 (fr) | 2000-07-05 |
EP1015529A4 true EP1015529A4 (fr) | 2002-08-14 |
Family
ID=22261158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97931426A Withdrawn EP1015529A4 (fr) | 1997-06-25 | 1997-06-25 | Procede ameliore d'obtention de rendements importants d'olefine a partir de charges d'alimentation residuelles |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1015529A4 (fr) |
JP (1) | JP2002505704A (fr) |
AU (1) | AU3505797A (fr) |
CA (1) | CA2291189A1 (fr) |
WO (1) | WO1998059018A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020038778A1 (en) * | 2000-05-01 | 2002-04-04 | Maa Peter S. | Process for upgrading residua |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172857A (en) * | 1978-04-03 | 1979-10-30 | Arthur G. Mckee & Company | Process and apparatus for ethylene production |
US4411769A (en) * | 1982-03-23 | 1983-10-25 | Exxon Research & Engineering Co. | Integrated two stage coking and steam cracking process and apparatus therefor |
US4975181A (en) * | 1984-12-10 | 1990-12-04 | Utah Tsao | Process and apparatus for ethylene production |
WO1997004043A1 (fr) * | 1995-07-17 | 1997-02-06 | Exxon Research And Engineering Company | Enrichissement integre de residuum et craquage catalytique fluide |
WO1997031083A1 (fr) * | 1996-02-22 | 1997-08-28 | Exxon Chemical Patents Inc. | Procede pour obtenir des olefines a partir de charges d'alimentation residuelles et autres charges d'alimentation lourdes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2768127A (en) * | 1951-05-17 | 1956-10-23 | Exxon Research Engineering Co | Improved residual oil conversion process for the production of chemicals |
-
1997
- 1997-06-25 WO PCT/US1997/011108 patent/WO1998059018A1/fr not_active Application Discontinuation
- 1997-06-25 EP EP97931426A patent/EP1015529A4/fr not_active Withdrawn
- 1997-06-25 AU AU35057/97A patent/AU3505797A/en not_active Abandoned
- 1997-06-25 JP JP50435699A patent/JP2002505704A/ja active Pending
- 1997-06-25 CA CA002291189A patent/CA2291189A1/fr not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172857A (en) * | 1978-04-03 | 1979-10-30 | Arthur G. Mckee & Company | Process and apparatus for ethylene production |
US4411769A (en) * | 1982-03-23 | 1983-10-25 | Exxon Research & Engineering Co. | Integrated two stage coking and steam cracking process and apparatus therefor |
US4975181A (en) * | 1984-12-10 | 1990-12-04 | Utah Tsao | Process and apparatus for ethylene production |
WO1997004043A1 (fr) * | 1995-07-17 | 1997-02-06 | Exxon Research And Engineering Company | Enrichissement integre de residuum et craquage catalytique fluide |
WO1997031083A1 (fr) * | 1996-02-22 | 1997-08-28 | Exxon Chemical Patents Inc. | Procede pour obtenir des olefines a partir de charges d'alimentation residuelles et autres charges d'alimentation lourdes |
Non-Patent Citations (1)
Title |
---|
See also references of WO9859018A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU3505797A (en) | 1999-01-04 |
JP2002505704A (ja) | 2002-02-19 |
EP1015529A1 (fr) | 2000-07-05 |
WO1998059018A1 (fr) | 1998-12-30 |
CA2291189A1 (fr) | 1998-12-30 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19991221 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB IT NL |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WEISENBERGER, HANS, A. Inventor name: SEIMANDI, NOEL Inventor name: PARRISH, MICHAEL, R. Inventor name: PAGEL, JOHN, F. Inventor name: LADWIG, PAUL, K. Inventor name: JACOBSON, MITCHELL Inventor name: SERRAND, WILLIBALD |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20020627 |
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AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): BE DE FR GB IT NL |
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17Q | First examination report despatched |
Effective date: 20020930 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20030211 |