FR2366239A1 - Ethylene prodn. from higher paraffin(s) - by hydrocracking and steam cracking - Google Patents

Ethylene prodn. from higher paraffin(s) - by hydrocracking and steam cracking

Info

Publication number
FR2366239A1
FR2366239A1 FR7629992A FR7629992A FR2366239A1 FR 2366239 A1 FR2366239 A1 FR 2366239A1 FR 7629992 A FR7629992 A FR 7629992A FR 7629992 A FR7629992 A FR 7629992A FR 2366239 A1 FR2366239 A1 FR 2366239A1
Authority
FR
France
Prior art keywords
zone
hydrocracking
steam cracking
degrees
fraction
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.)
Granted
Application number
FR7629992A
Other languages
French (fr)
Other versions
FR2366239B1 (en
Inventor
Jean-Pierre Franck
Edouard Freund
Jean Miquel
Christian Marcilly
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7629992A priority Critical patent/FR2366239A1/en
Priority to US05/834,025 priority patent/US4137147A/en
Publication of FR2366239A1 publication Critical patent/FR2366239A1/en
Application granted granted Critical
Publication of FR2366239B1 publication Critical patent/FR2366239B1/fr
Granted 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/40—Ethylene production

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Prodn. of ethylene comprises hydrocracking (hydrogenolysis) of ahydrocarbon feed boiling in the 0-360 degrees C range an and contg. >=10 wt. % C4+n-paraffins and >=10 wt. % C4+ isoparaffins, followed by steam cracking at the C2-3 prod. Hydrocracking is carried out in a series of >=2 reaction zones each operating at 300-550 degrees C, 10-150 bars, LHSV of 0.2-5 and an H2/feed ratio of 300-3000 Nl/l. The temp. in each downstream zone is 5-25 degrees C higher than that in the preceding zone. The 1st zone contains an acidic mordenite catalyst contg. 0.01-25% of Ni, CO and 1 or Fe. The downstream zone(s) contain(s) a catalyst comprising 0.01-25% of >=1 Pt-group metal on a support comprising SiO2, Al2O3, SiO2-Al2O3 or a zeolite. The effluent from each hydrocracking zone is fractionated into an H2 stream, a CH4 stream, a C2-3 fraction (ethane + propane) and a C4+ fraction. Each C4+ fraction is passed to the next zone or, in the case of the last zone, is recycled to >=1 preceding zone. THe C2-3 fractions are combined and passed to a steam cracking zone. Steam cracking is carried out at 700-850 degrees C, 1-1.4 bar, a residence time of 0.2-1.2 sec and an H2/hydrocarbon wt. ratio of 0.25-0.4. cf. process employing one-stage hydrocracking with steam cracking of the total effluent, the process gives higher ethylene yields (e.g. 46.6% cf 42.9%) and reduced CH4 formation (e.g. 36.2% cf 40.4).
FR7629992A 1976-09-16 1976-10-04 Ethylene prodn. from higher paraffin(s) - by hydrocracking and steam cracking Granted FR2366239A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7629992A FR2366239A1 (en) 1976-10-04 1976-10-04 Ethylene prodn. from higher paraffin(s) - by hydrocracking and steam cracking
US05/834,025 US4137147A (en) 1976-09-16 1977-09-16 Process for manufacturing olefinic hydrocarbons with respectively two and three carbon atoms per molecule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7629992A FR2366239A1 (en) 1976-10-04 1976-10-04 Ethylene prodn. from higher paraffin(s) - by hydrocracking and steam cracking

Publications (2)

Publication Number Publication Date
FR2366239A1 true FR2366239A1 (en) 1978-04-28
FR2366239B1 FR2366239B1 (en) 1982-08-13

Family

ID=9178427

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7629992A Granted FR2366239A1 (en) 1976-09-16 1976-10-04 Ethylene prodn. from higher paraffin(s) - by hydrocracking and steam cracking

Country Status (1)

Country Link
FR (1) FR2366239A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000843A1 (en) 2013-07-02 2015-01-08 Saudi Basic Industries Corporation Process for the production of light olefins and aromatics from a hydrocarbon feedstock.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000843A1 (en) 2013-07-02 2015-01-08 Saudi Basic Industries Corporation Process for the production of light olefins and aromatics from a hydrocarbon feedstock.
EA032112B1 (en) * 2013-07-02 2019-04-30 Сауди Бейсик Индастриз Корпорейшн Process for the production of light olefins and aromatics from a hydrocarbon feedstock
US10465131B2 (en) 2013-07-02 2019-11-05 Saudi Basic Industries Corporation Process for the production of light olefins and aromatics from a hydrocarbon feedstock

Also Published As

Publication number Publication date
FR2366239B1 (en) 1982-08-13

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