BE788621A - Removing hydrocarbons from spent sulphuric acid catalyst - which has been used for alkylation of olefins or aromatics - Google Patents

Removing hydrocarbons from spent sulphuric acid catalyst - which has been used for alkylation of olefins or aromatics

Info

Publication number
BE788621A
BE788621A BE788621DA BE788621A BE 788621 A BE788621 A BE 788621A BE 788621D A BE788621D A BE 788621DA BE 788621 A BE788621 A BE 788621A
Authority
BE
Belgium
Prior art keywords
acid
aromatics
alkylation
olefins
sulphate
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Texaco Development 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.)
Publication date
Publication of BE788621A publication Critical patent/BE788621A/en

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
    • C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
    • C10G29/20—Organic compounds not containing metal atoms
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/92—Recovery from acid tar or the like, e.g. alkylation acids
    • C01B17/925—Recovery from acid tar or the like, e.g. alkylation acids by processes involving a liquid-liquid extraction
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/56—Addition to acyclic hydrocarbons
    • C07C2/58—Catalytic processes
    • C07C2/62—Catalytic processes with acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/053—Sulfates or other compounds comprising the anion (SnO3n+1)2-
    • C07C2527/054—Sulfuric acid or other acids with the formula H2Sn03n+1

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Recovering H2SO4 catalyst used for alkylation of olefins or aromatics, (a) contacting it with olefinic hydrocarbon to produce mostly dialkyl sulphate with some alkyl acid sulphate, acid-polymeric hydrocarbon complex and water (b) extracting the dialkyl sulphate from the product with a liq. hydrocarbon solvent (c) diluting the raffinate to 85-90% acidity, extracting the residual dialkyl sulphate with more solvent, (d) diluting the second raffinate to 50% H2SO4 to hydrolyse the acid sulphate to alcohol and release the polymeric hydrocarbon from the complex and finally removing the alcohol and polymeric hydrocarbon from the final acid which contains about 50% acid. The final acid may be concd. by distn.
BE788621D 1972-09-08 Removing hydrocarbons from spent sulphuric acid catalyst - which has been used for alkylation of olefins or aromatics BE788621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE788621 1972-09-08

Publications (1)

Publication Number Publication Date
BE788621A true BE788621A (en) 1973-03-08

Family

ID=3860154

Family Applications (1)

Application Number Title Priority Date Filing Date
BE788621D BE788621A (en) 1972-09-08 Removing hydrocarbons from spent sulphuric acid catalyst - which has been used for alkylation of olefins or aromatics

Country Status (1)

Country Link
BE (1) BE788621A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110092358A (en) * 2019-05-24 2019-08-06 华东理工大学 A kind of processing method of waste sulfuric acid from alkylation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110092358A (en) * 2019-05-24 2019-08-06 华东理工大学 A kind of processing method of waste sulfuric acid from alkylation

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