EP0181066A3 - Process for dewaxing heavy distillates and residual liquids - Google Patents

Process for dewaxing heavy distillates and residual liquids Download PDF

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Publication number
EP0181066A3
EP0181066A3 EP85306342A EP85306342A EP0181066A3 EP 0181066 A3 EP0181066 A3 EP 0181066A3 EP 85306342 A EP85306342 A EP 85306342A EP 85306342 A EP85306342 A EP 85306342A EP 0181066 A3 EP0181066 A3 EP 0181066A3
Authority
EP
European Patent Office
Prior art keywords
dewaxing
waxes
stage
units
residual liquids
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Withdrawn
Application number
EP85306342A
Other languages
German (de)
French (fr)
Other versions
EP0181066A2 (en
Inventor
Philip Varghese
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.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
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 Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of EP0181066A2 publication Critical patent/EP0181066A2/en
Publication of EP0181066A3 publication Critical patent/EP0181066A3/en
Withdrawn legal-status Critical Current

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
    • C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
    • C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
    • C10G65/04—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps
    • C10G65/043—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only refining steps at least one step being a change in the structural skeleton
    • 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
    • C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
    • C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
    • C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
    • C10G45/64—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
    • 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
    • C10G55/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process
    • C10G55/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only
    • C10G55/06—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only including at least one catalytic cracking step

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)
  • Crystallography & Structural Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Process for dewaxing heavy distillate and residual feed. Easily converted waxes are partially removed in a first catalytic dewaxing step, and the resulting product is separated to remove the light ends. The heavy liquid fraction, which contains difficult to convert waxes, such as poly-branched or mid-methyl branched paraffin waxes, is then introduced into a second dewaxing stage, where the liquid stream is dewaxed to a specification pour point. The process may be implemented via double pass dewaxing in existing units or by passing through two consecutive dewaxing units. Improvements are due to a decoupling of temperature requirements in each reaction step and removal of cracked products which inhibit dewaxing and accelerate aging in the second dewaxing stage.
EP85306342A 1984-10-29 1985-09-06 Process for dewaxing heavy distillates and residual liquids Withdrawn EP0181066A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66579384A 1984-10-29 1984-10-29
US665793 1984-10-29

Publications (2)

Publication Number Publication Date
EP0181066A2 EP0181066A2 (en) 1986-05-14
EP0181066A3 true EP0181066A3 (en) 1988-07-20

Family

ID=24671599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85306342A Withdrawn EP0181066A3 (en) 1984-10-29 1985-09-06 Process for dewaxing heavy distillates and residual liquids

Country Status (5)

Country Link
EP (1) EP0181066A3 (en)
JP (1) JPS61108693A (en)
AU (1) AU586980B2 (en)
CA (1) CA1253107A (en)
ZA (1) ZA856718B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695364A (en) * 1984-12-24 1987-09-22 Mobil Oil Corporation Lube or light distillate hydrodewaxing method and apparatus with light product removal and enhanced lube yields
AU5527486A (en) * 1985-04-18 1986-10-23 Mobil Oil Corp. Catalytic dewaxing process
GB8624952D0 (en) * 1986-10-17 1986-11-19 Shell Int Research Converting stream containing heavy hydrocarbons into stream
US4908120A (en) * 1987-08-20 1990-03-13 Mobil Oil Corporation Catalytic dewaxing process using binder-free zeolite
AU2013488A (en) * 1987-08-20 1989-02-23 Mobil Oil Corporation Catalytic dewaxing process
US4921593A (en) * 1987-08-20 1990-05-01 Mobil Oil Corporation Catalytic dewaxing process
AU1718999A (en) * 1997-12-10 1999-06-28 Chevron U.S.A. Inc. Dewaxing process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431194A (en) * 1966-10-14 1969-03-04 Exxon Research Engineering Co Process for lowering the pour point of a middle distillate
EP0072220A1 (en) * 1981-08-07 1983-02-16 Mobil Oil Corporation Two-stage hydrocarbon dewaxing hydrotreating process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211634A (en) * 1978-11-13 1980-07-08 Standard Oil Company (Indiana) Two-catalyst hydrocracking process
US4428819A (en) * 1982-07-22 1984-01-31 Mobil Oil Corporation Hydroisomerization of catalytically dewaxed lubricating oils
US4597854A (en) * 1985-07-17 1986-07-01 Mobil Oil Corporation Multi-bed hydrodewaxing process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431194A (en) * 1966-10-14 1969-03-04 Exxon Research Engineering Co Process for lowering the pour point of a middle distillate
EP0072220A1 (en) * 1981-08-07 1983-02-16 Mobil Oil Corporation Two-stage hydrocarbon dewaxing hydrotreating process

Also Published As

Publication number Publication date
JPS61108693A (en) 1986-05-27
AU4685985A (en) 1986-05-08
CA1253107A (en) 1989-04-25
ZA856718B (en) 1987-04-29
AU586980B2 (en) 1989-08-03
EP0181066A2 (en) 1986-05-14

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Inventor name: VARGHESE, PHILIP