EP0103053A1 - Amélioration des hydrocarbures lourds - Google Patents

Amélioration des hydrocarbures lourds Download PDF

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Publication number
EP0103053A1
EP0103053A1 EP82304498A EP82304498A EP0103053A1 EP 0103053 A1 EP0103053 A1 EP 0103053A1 EP 82304498 A EP82304498 A EP 82304498A EP 82304498 A EP82304498 A EP 82304498A EP 0103053 A1 EP0103053 A1 EP 0103053A1
Authority
EP
European Patent Office
Prior art keywords
hydrogen
kiln
coke
donor
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.)
Withdrawn
Application number
EP82304498A
Other languages
German (de)
English (en)
Inventor
Ardis L. Anderson
James R. Mcconaghy
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.)
ConocoPhillips Co
Original Assignee
Conoco Inc
ConocoPhillips Co
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 Conoco Inc, ConocoPhillips Co filed Critical Conoco Inc
Priority to EP82304498A priority Critical patent/EP0103053A1/fr
Publication of EP0103053A1 publication Critical patent/EP0103053A1/fr
Withdrawn legal-status Critical Current

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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
    • C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
    • C10G47/32—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions in the presence of hydrogen-generating compounds
    • C10G47/34—Organic compounds, e.g. hydrogenated hydrocarbons
    • 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
    • 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
    • C10G69/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process
    • C10G69/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only
    • C10G69/06—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one step of thermal cracking in the absence of hydrogen

Definitions

  • This invention relates to upgrading of heavy hydrocarbonaceous materials, and more particularly to upgrading of materials such as low gravity crude oil, petroleum residual oil, shale oil, tar sand bitumen and coal-derived liquids.
  • the invention is especially useful for upgrading low gravity, high sulfur crude oil.
  • heavy liquid hydrocarbonaceous material is subjected to hydrogen donor diluent cracking (HDDC)
  • HDDC hydrogen donor diluent cracking
  • the effluent from the HDDC is fractionated
  • pitch from the fractionator is subjected to delayed coking.
  • 'pitch' as used herein means a bottom stream from a fractionator used to separate distillates and lighter cracked products from the effluent of an HDDC unit, and the pitch typically contains the heavier effluent components along with some material in the gas oil boiling range.
  • Green coke from the delayed coking step is calcined in a top fed internally fired moving bed vertical shaft kiln. Steam is injected into the lower part of the kiln to produce a hydrogen-rich stream by the well-known water gas reaction. Part of this gas stream flows up through the calciner and part of it is withdrawn below the combustion zone and, after treatment to remove carbon dioxide or carbon dioxide and carbon monoxide if desired, used to hydrogenate recycle donor solvent for use in the HDDC step.
  • the kiln can be operated at desulfurizing conditions to produce a low sulfur coke product, and part of the hydrogen produced in the lower section of the kiln can be used to hydrotreat other product streams from the fractionator.
  • the process of this invention provides for upgrading a heavy hydrocarbonaceous material such as a low gravity, high sulfur crude oil by the HDDC process and includes the feature of producing the hydrogen required for the HDDC step by reaction of calcined coke produced from the HDDC pitch with steam in a vertical calcining kiln.
  • the products of the process include cracked products and desulfurized coke, and the products are all either low sulfur products or can be hydrotreated by internally generated hydrogen to provide low sulfur products. Hydrogen sulfide can also be recovered and processed by conventional methods to produce elemental sulfur.
  • the process of this invention is useful for materials such as tar sand bitumen, petroleum residuum, retorted shale oil, coal-derived liquids and heavy (low gravity) crude oils. It is particuarly useful for viscous low gravity high sulfur crudes which have until recently been considered unrecoverable or undesirable for processing. Even high sulfur crudes containing more than ten per cent by weight sulfur can be processed successfully by the process of the invention.
  • Feedstock from line 10 and hydrogenated donor solvent from line 11 are fed to donor cracker 12.
  • the conditions for the HDDC operation are well known, as exemplified by U.S.A. Patents Nos. 2,953,513 and 3,238,118.
  • Donor cracker effluent is fractionated in fractionator 13, and recycle donor solvent is drawn off through line 14 and hydrogenated in hydrotreater 15.
  • Hydrogenated solvent from hydrotreater 15 goes through flash separator 16 where gases are removed, and the donor solvent then is recycled to donor cracker 12.
  • the bottom pitch fraction from fractionator 12 passes through line 17 to coking furnace 18 and then to coke drum 19.
  • the coking is carried out at conventional delayed coking conditions, and overhead vapors from coke drum 19 are returned to fractionator 13.
  • Green coke from coke drum 19 passes to an internally-fired moving bed vertical shaft kiln 20. Air is injected from line 21 into a combustion zone in kiln 20. Steam from boiler 28 passes through line 22 into the lower part of kiln 20 where it reacts with hot calcined coke according to the reaction H 2 0 + C H 2 + CO. This is sometimes referred to as the water gas reaction, for which the conditions are well known.
  • Gas flow in kiln 20 is upward, so that nitrogen from combustion air does not contaminate the water gas reaction products which are withdrawn from line 23 located below the air injection level.
  • the water gas reaction products may be treated in a scrubber (not shown) or other equipment to remove gases other than hydrogen before the hydrogen passes to hydrotreater 15 where it is used to hydrogenate recycle donor solvent.
  • hydrogen generated in kiln 20 can regenerate the donor solvent for the HDDC unit.
  • a high sulfur feedstock (above 2 percent by weight sulfur) is fed to donon cracker 12.
  • the green coke from coke drum 19 will contain an unacceptably high sulfur content.
  • Sulfur removed from the coke is recovered as hydrogen sulfide in scrubber 24.
  • Part of the hydrogen from kiln 20 is passed through line 25 to hydrotre ater 26 where overhead liquds from fraction- > ator 13 are hydrotreated to produce low sulfur products. Gases from various stages of the process are scrubbed in vessel 27 to produce low sulfur gaseous products.

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  • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Coke Industry (AREA)
EP82304498A 1982-08-26 1982-08-26 Amélioration des hydrocarbures lourds Withdrawn EP0103053A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82304498A EP0103053A1 (fr) 1982-08-26 1982-08-26 Amélioration des hydrocarbures lourds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82304498A EP0103053A1 (fr) 1982-08-26 1982-08-26 Amélioration des hydrocarbures lourds

Publications (1)

Publication Number Publication Date
EP0103053A1 true EP0103053A1 (fr) 1984-03-21

Family

ID=8189754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304498A Withdrawn EP0103053A1 (fr) 1982-08-26 1982-08-26 Amélioration des hydrocarbures lourds

Country Status (1)

Country Link
EP (1) EP0103053A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772209A (en) * 1953-07-01 1956-11-27 Exxon Research Engineering Co Recovery of oil from bituminous sands
US3676517A (en) * 1969-09-12 1972-07-11 Marathon Oil Co Process for the production of synthesis gas, cracked hydrocarbon and calcined coke
US4115246A (en) * 1977-01-31 1978-09-19 Continental Oil Company Oil conversion process
GB2020309A (en) * 1978-05-08 1979-11-14 Exxon Research Engineering Co Coal liquefaction process
EP0005643A2 (fr) * 1978-05-22 1979-11-28 Conoco Phillips Company Procédé de production de coke de haute qualité et électrode obtenue en graphitisant ledit coke
GB2057493A (en) * 1979-09-04 1981-04-01 Mobil Oil Corp Coal liquefaction process with reduced hydrogen consumption

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772209A (en) * 1953-07-01 1956-11-27 Exxon Research Engineering Co Recovery of oil from bituminous sands
US3676517A (en) * 1969-09-12 1972-07-11 Marathon Oil Co Process for the production of synthesis gas, cracked hydrocarbon and calcined coke
US4115246A (en) * 1977-01-31 1978-09-19 Continental Oil Company Oil conversion process
GB2020309A (en) * 1978-05-08 1979-11-14 Exxon Research Engineering Co Coal liquefaction process
EP0005643A2 (fr) * 1978-05-22 1979-11-28 Conoco Phillips Company Procédé de production de coke de haute qualité et électrode obtenue en graphitisant ledit coke
GB2057493A (en) * 1979-09-04 1981-04-01 Mobil Oil Corp Coal liquefaction process with reduced hydrogen consumption

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Legal Events

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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

AK Designated contracting states

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19840522

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

18D Application deemed to be withdrawn

Effective date: 19851213

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MCCONAGHY, JAMES R.

Inventor name: ANDERSON, ARDIS L.