EP0256940B1 - Verfahren zur Entasphaltierung eines Schwerkohlenwasserstoffeinsatzes - Google Patents

Verfahren zur Entasphaltierung eines Schwerkohlenwasserstoffeinsatzes Download PDF

Info

Publication number
EP0256940B1
EP0256940B1 EP87401848A EP87401848A EP0256940B1 EP 0256940 B1 EP0256940 B1 EP 0256940B1 EP 87401848 A EP87401848 A EP 87401848A EP 87401848 A EP87401848 A EP 87401848A EP 0256940 B1 EP0256940 B1 EP 0256940B1
Authority
EP
European Patent Office
Prior art keywords
charge
shearing
solvent
phase
process according
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.)
Expired
Application number
EP87401848A
Other languages
English (en)
French (fr)
Other versions
EP0256940A1 (de
Inventor
Roben Loutaty
Gilles Trinquet
Pierre Maroy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TotalEnergies Marketing Services SA
Original Assignee
Total France SA
Compagnie de Raffinage et de Distribution Total France SA
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 Total France SA, Compagnie de Raffinage et de Distribution Total France SA filed Critical Total France SA
Publication of EP0256940A1 publication Critical patent/EP0256940A1/de
Application granted granted Critical
Publication of EP0256940B1 publication Critical patent/EP0256940B1/de
Expired legal-status Critical Current

Links

Images

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
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C10G21/003—Solvent de-asphalting

Definitions

  • the present invention relates to a process for deasphalting a heavy hydrocarbon feed.
  • heavy hydrocarbon filler is meant, within the meaning of the present invention, a filler having a density at 15 ° C greater than about 930 kg / m 3 , composed essentially of hydrocarbons, but also containing other chemical compounds which, in addition to carbon and hydrogen atoms, have heteroatoms, such as oxygen, nitrogen, sulfur and metals, such as vanadium or nickel.
  • This charge can be constituted, in particular, by a crude oil or a heavy oil having the density indicated above.
  • the feedstock can also come from the fractionation or processing of crude oil, heavy oil, oil shale or even coal. It may thus be the residue from the distillation under reduced pressure or the residue from the distillation at atmospheric pressure of the starting materials mentioned above or, for example, the products obtained by the heat treatment of these starting materials or their distillation residues.
  • the heaviest part of the heavy hydrocarbon charges consists of a mixture of an oily phase and an asphaltic phase.
  • the asphaltic phase is the phase which precipitates by the addition of a low boiling point hydrocarbon (for example, propane, butane, pentane, hexane, heptane), the oily phase being soluble in said hydrocarbon.
  • a low boiling point hydrocarbon for example, propane, butane, pentane, hexane, heptane
  • the oily phase that is to say the lighter phase, which is economically more advantageous than the asphaltic phase. It can indeed serve as a catalytic cracking charge leading to the production of light products. It can also serve as a filler for obtaining bases for lubricating oils. The value of these products is higher than those of the fuels and bitumens obtained from the asphalt phase.
  • heavy hydrocarbon feedstocks contain compounds having, in addition to hydrogen and carbon atoms, heteroatoms, such as oxygen, nitrogen, sulfur and metals. Some of these compounds, especially those having metals, are contained in particular in the asphalt phase.
  • Asphaltenes like resins have polycyclic aromatic structures. Next to the aromatic rings are thiophenic and pyridine rings. But resins have less condensed structures than asphaltenes and lower molecular weights.
  • the compounds which precipitate by addition to the charge of a saturated aliphatic hydrocarbon having from 5 to 7 carbon atoms are generally designated under the name of asphaltenes: pentane, hexane, heptane.
  • pentane, hexane, heptane pentane, hexane, heptane.
  • a hydrocarbon with a lower boiling point for example propane.
  • this distinction is conventional and it is obvious that, if a given hydrocarbon is used for treating a charge at a given temperature, it will be possible, if the hydrocarbon and the temperature are suitable, to obtain the precipitation of compounds of the type asphaltenes. If the charge freed from asphaltenes is then treated with the same hydrocarbon at a higher temperature, precipitation of the resins can be obtained.
  • the oily phase and the asphaltic phase are separated in the well-known deasphalting process, as indicated above, by the operation which consists in extracting the oily phase from a hydrocarbon charge using a body called by man. solvent art.
  • the solvent is both a solvent for the oily phase and a precipitant for the asphalt phase. In the remainder of this description, it will simply be called a solvent.
  • the deasphalting can be carried out in a single step, obtaining, in this case, an oily phase and an asphaltic phase, the latter containing both the asphaltenes and the resins. It can also be carried out in two stages, with the use of two different solvents and / or different operating conditions in the two stages.
  • the oily phase, the resins and the asphaltenes are obtained separately in this two-step process (see for example French patent application No. 86 06994, filed on May 15, 1986, in the name of the applicant).
  • FR-A-716 703 describes a deasphalting process in which the precipitated asphalt passes through a screw and is therefore subjected to shearing, while the treated load is simply agitated in a tower intended to ensure the mixing of the constituents and the homogenization of this mixture.
  • FR-A-2 218 920 describes a deasphalting tower in which a rotor drives blades in different compartments which successively borrows the load to be treated. No information is given on the rotation speeds of the blades.
  • the object of the present invention is therefore, in a deasphalting process, to increase the yield in the oily phase, while retaining the latter the characteristics desired for the application which is targeted.
  • a “Conradson” residue (measured according to the AFNOR NFT 60-116 standard) of less than 10% by weight is desirable.
  • shearing is meant the application of a high stress to the load, whether diluted or not.
  • the shear can be applied to the load after and / or before the addition of at least part of the solvent.
  • the shearing can in particular be obtained by forced passage of the load, optionally containing at least part of the solvent, in an air gap limited by a fixed part and a coaxial part rotating therein.
  • the shearing can also be caused by the use of a turbine or any other means of agitation, possibly in the deasphalting tower.
  • the deasphalting operation which follows the shearing or which is carried out at the same time as this, can be carried out in one or two stages.
  • This drawing schematically represents a deasphalting unit comprising a shearing installation.
  • the heavy hydrocarbon feedstock for example an oil with a density at 15 ° C. greater than 930 kg / m 3 , is introduced via line 1 into the middle part of an extractor liquid-liquid 2.
  • the oily phase is extracted from the feedstock with a solvent, which is introduced into the extractor through line 3.
  • This solvent can in particular be an aliphatic hydrocarbon, saturated or unsaturated, having 2 to 8 atoms carbon, preferably from 3 to 5 carbon atoms, or the formula diapers of hydrocarbons, called distillates, having from 2 to 8 carbon atoms, or mixtures of all the hydrocarbons previously mentioned.
  • the solvent for starting the unit comes from a source external to the unit via line 4. Losses of solvent can be compensated by an external make-up, brought by line 4.
  • the pressure inside the extractor 2 can be between 20 ⁇ 10 5 and 1 ⁇ 10 7 absolute pascals, the temperature between 30 and 300 ° C, the mass rate being between 1 and 10.
  • the oily phase dissolved in solvent is collected at the head of extractor 2, via line 5.
  • This mixture is conducted by line 5 in a fractionation assembly 6.
  • this assembly has not been shown in detail, but it generally includes a regulator controlling a pressure drop and evaporators.
  • solvent is collected, on the one hand, by line 7, which is recycled to extractor 2 via line 3 and, on the other hand, by the line 8, the oily phase.
  • the precipitated asphalt phase and the solvent are recovered at the bottom of the extractor 2.
  • This mixture is conducted by line 10 in a fractionation assembly 11, which generally comprises an oven or an exchanger with a hot fluid, an evaporator and a water vapor drive column.
  • Part of the solvent in line 3 can optionally be brought to line 1 via line 14 to predilute the charge.
  • This restriction can also be placed after or before the intersection of lines 1 and 14, before the deasphalting tower 2.
  • This example relates to deasphalting tests carried out on a residue from the distillation under reduced pressure of the residue from the distillation at atmospheric pressure of a Safaniya crude oil, with and without prior shearing of said residue.
  • This example relates to deasphalting tests carried out on two loads C 1 and C 2 , with and without prior shearing of the loads. When it is carried out, the shearing takes place in the presence of solvent.
  • the feedstock C is identical to that used in Example 1 and is therefore constituted by a distillation residue under reduced pressure of an atmospheric distillation residue of a Safaniya crude oil. Its characteristics are given in Example 1.
  • the feed C 2 consists of a residue from the distillation under atmospheric pressure of a Maya crude oil.
  • the shearing is carried out at a temperature of 95 ° C. in a turbine having an air gap of 0.6 mm and a crenellated head (2 mm of space between the teeth) with a rotational speed of 17,000 rpm.
  • the solvent contains 78.1% by weight of normal pentane and 21.9% by weight of normal heptane.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Claims (7)

1. Verfahren zur Entasphaltierung eines Schwerkohlenwasserstoffeinsatzes, welcher aus einer Ölphase und einer Asphaltphase besteht, eine spezifische Masse grösser als 930 kg/m3 bei 15° C aufweist und sich im wesentlichen aus Kohlenwasserstoffen zusammensetzt, jedoch auch andere chemische Verbindungen enthält, die neben Kohlenstoff- und Wasserstoffatomen noch Heteroatome aufweisen, wobei
die Ölphase und die Asphaltphase in einem Schritt oder in zwei Schritten durch Zusatz eines Lösungsmittels für die Ölphase und zugleich Fällungsmittels für die Asphaltphase zum Einsatz voneinander getrennt werden und
das in den voneinander getrennten Öl- und Asphaltphasen enthaltene Lösungs-/Fällungsmittel wiedergewonnen und zur neuerlichen Verwendung beim Öl- und Asphaltphasentrennen rückgeführt wird,

dadurch gekennzeichnet, dass der Einsatz ausserdem einer Scherung unterworfen wird, indem er zwischen zwei gegenseitig bewegten Teilen unter solchen Bedingungen hindurchgezwungen wird, dass die durch das Verhältnis du (du = Geschwindigkeitsdifferenz zwischen den Teilen; dx = Abstand zwischen den Teilen) definierte Scherung zwischen 103 und 106 S-1, vorzugsweise zwischen 104 und 2 · 105s-1, liegt.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Scherung des Einsatzes vor dem Öl- und Asphaltphasentrennen durchgeführt wird.
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Scherung des Einsatzes während des Öl- und Asphaltphasentrennens in der Entasphaltierungseinheit durchgeführt wird.
4. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Scherung des Einsatzes vor dem Lösungs-/Fällungsmittelzusatz zum Einsatz durchgeführt wird.
5. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Scherung des Einsatzes nach dem Lösungs-/Fällungsmittelzusatz zum Einsatz durchgeführt wird.
6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Scherung des Einsatzes mittels eines Rührmittels, wie einer Turbine, erfolgt.
7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Scherung des Einsatzes aus seinem Hindurchzwingen durch einen von einem stationären Teil und einem dazu koaxialen, darin rotierenden Teil begrenzten Spalt resultiert.
EP87401848A 1986-08-12 1987-08-07 Verfahren zur Entasphaltierung eines Schwerkohlenwasserstoffeinsatzes Expired EP0256940B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8611638 1986-08-12
FR8611638A FR2602783B1 (fr) 1986-08-12 1986-08-12 Procede de desasphaltage d'une charge hydrocarbonee lourde

Publications (2)

Publication Number Publication Date
EP0256940A1 EP0256940A1 (de) 1988-02-24
EP0256940B1 true EP0256940B1 (de) 1989-11-08

Family

ID=9338237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401848A Expired EP0256940B1 (de) 1986-08-12 1987-08-07 Verfahren zur Entasphaltierung eines Schwerkohlenwasserstoffeinsatzes

Country Status (6)

Country Link
US (1) US4882035A (de)
EP (1) EP0256940B1 (de)
JP (1) JPS6346294A (de)
CA (1) CA1328420C (de)
DE (1) DE3760957D1 (de)
FR (1) FR2602783B1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7025713B2 (en) * 2003-10-13 2006-04-11 Icon Ip, Inc. Weight lifting system with internal cam mechanism
JP2007537351A (ja) * 2004-05-13 2007-12-20 ペトロシアー・コーポレイション 複合混合物の分離の改良
US9669381B2 (en) * 2007-06-27 2017-06-06 Hrd Corporation System and process for hydrocracking
JP2009242517A (ja) * 2008-03-31 2009-10-22 National Institute Of Advanced Industrial & Technology ジメチルエーテルを用いた重質油の脱レキ方法
CA2778964C (en) * 2009-11-17 2019-02-19 H R D Corporation Bitumen extraction and asphaltene removal from heavy crude using high shear
CA2732919C (en) 2010-03-02 2018-12-04 Meg Energy Corp. Optimal asphaltene conversion and removal for heavy hydrocarbons
KR101930580B1 (ko) * 2012-01-17 2018-12-18 메그 에너지 코오퍼레이션 중질 탄화수소의 낮은 복잡도, 고수율 전환
CA2899136A1 (en) * 2013-01-25 2014-07-31 H R D Corporation Method of high shear comminution of solids
BR112015020366A2 (pt) 2013-02-25 2017-07-18 Meg Energy Corp separação melhorada de asfaltenos sólidos de hidrocarbonetos líquidos pesados usando-se novos aparelho e processo ("ias")
JP2017095732A (ja) * 2017-01-26 2017-06-01 エムイージー エナジー コーポレイション 複雑性の低い、重質炭化水素の高収率転化

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716703A (fr) * 1930-05-26 1931-12-26 Ig Farbenindustrie Ag Procédé pour la séparation de l'asphalte et des substances similaires d'avec les goudrons, les huiles minérales, les produits résultant de l'hydrogénation sous pression du charbon, etc., qui en renferment
US2303023A (en) * 1940-12-19 1942-11-24 Standard Oil Dev Co Process for producing improved asphalts
US2871180A (en) * 1957-05-24 1959-01-27 Shell Dev Recovery of oil from tar sands
US3228870A (en) * 1964-12-14 1966-01-11 Phillips Petroleum Co Treatment of asphaltic crude oils
FR2218920A1 (en) * 1973-02-22 1974-09-20 Foster Wheeler Corp Contacting tower for treating petroleum residue - with rotor blades inter-fitting with stator rings and with wash oil recycle from perforate basin
US3811844A (en) * 1973-02-22 1974-05-21 Foster Wheeler Corp Rotating disc contactor draw-off system
JPS582162B2 (ja) * 1974-07-02 1983-01-14 丸善石油株式会社 ダツアスフアルトユノ セイホウ
US4315815A (en) * 1980-06-30 1982-02-16 Kerr-Mcgee Refining Corporation Process for separating bituminous materials and recovering solvent
US4508597A (en) * 1982-04-05 1985-04-02 Kerr-Mcgee Refining Corporation Recovery of organic solvents from liquid mixtures
US4666562A (en) * 1982-09-27 1987-05-19 Kerr-Mcgee Refining Corporation Solvent recovery from solvent process material mixtures
US4572781A (en) * 1984-02-29 1986-02-25 Intevep S.A. Solvent deasphalting in solid phase
US4528068A (en) * 1984-03-22 1985-07-09 Exxon Research And Engineering Co. Tray apparatus for deasphalting and extraction
US4686028A (en) * 1985-04-05 1987-08-11 Driesen Roger P Van Upgrading of high boiling hydrocarbons

Also Published As

Publication number Publication date
CA1328420C (fr) 1994-04-12
US4882035A (en) 1989-11-21
FR2602783B1 (fr) 1989-06-02
EP0256940A1 (de) 1988-02-24
JPS6346294A (ja) 1988-02-27
DE3760957D1 (en) 1989-12-14
FR2602783A1 (fr) 1988-02-19

Similar Documents

Publication Publication Date Title
EP0246956B1 (de) Verfahren zur Entfernung von Asphalt aus einer Kohlenwasserstoffbeschickung
RU2733847C2 (ru) Интегрированный способ для увеличения производства олефинов переработкой и обработкой тяжелого остатка крекинга
US3278415A (en) Solvent deasphalting process
EP0256940B1 (de) Verfahren zur Entasphaltierung eines Schwerkohlenwasserstoffeinsatzes
US4259171A (en) Process for the separation of quinoline-insoluble components from coal tar pitch
US11286428B2 (en) Solvent and temperature assisted dissolution of solids from steam cracked tar
US4465587A (en) Process for the hydroliquefaction of heavy hydrocarbon oils and residua
FR2999597A1 (fr) Procede de desasphaltage selectif de charges lourdes
FR2579985A1 (de)
JP2588772B2 (ja) 残留炭化水素油を熱クラッキングする方法
EP0235027B1 (de) Verfahren, um feste Asphalte zu fraktionieren
US11674093B2 (en) Temperature control for centrifugation of steam cracked tar
US2899373A (en) Light hydrocarbons
JPH04227988A (ja) 原油の脱歴及び脱金属化法
US20220204866A1 (en) Pyrolysis Tar Upgrading
EP0064447B1 (de) Verfahren zur Herstellung von synthetischem Rohöl
RU2694533C1 (ru) Способ сольвентной деасфальтизации тяжелого нефтяного сырья и растворитель для реализации способа
EP0329510B1 (de) Verfahren zur Entasphaltierung schwerer Erdölfraktionen und dessen Verwendung
FR2542005A1 (fr) Procede de traitement de petrole et de residus de petrole pour produire des produits plus hydrogenes
JPH0212276B2 (de)
US20220033716A1 (en) Solvent Control for Centrifugation of Steam Cracked Tar
EP0333554B1 (de) Thermische Behandlungsverfahren von Kohlenwasserstoffeinsätzen in Gegenwart von Polysulfiden und wasserstoffabgebenden Substanzen
CA1126186A (en) Process for recovering a premium oil from a slurry produced by high temperature hydrogenation of a solid, hycrocarbonaceous fuel
FR2497818A1 (fr) Composition et procede pour maitriser le moussage dans les procedes de cokefaction retardee
Hill The Petroleum Industry of 1935

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19880226

17Q First examination report despatched

Effective date: 19880725

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

REF Corresponds to:

Ref document number: 3760957

Country of ref document: DE

Date of ref document: 19891214

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940715

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940805

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19940810

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940831

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940905

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950831

BERE Be: lapsed

Owner name: CIE DE RAFFINAGE ET DE DISTRIBUTION TOTAL FRANCE

Effective date: 19950831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960430

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050807