FR2044513A5 - Separation of butadiene from pyrolysis gas - Google Patents

Separation of butadiene from pyrolysis gas

Info

Publication number
FR2044513A5
FR2044513A5 FR6916875A FR6916875A FR2044513A5 FR 2044513 A5 FR2044513 A5 FR 2044513A5 FR 6916875 A FR6916875 A FR 6916875A FR 6916875 A FR6916875 A FR 6916875A FR 2044513 A5 FR2044513 A5 FR 2044513A5
Authority
FR
France
Prior art keywords
hydrocarbons
fraction
butadiene
contg
separation zone
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
FR6916875A
Other languages
French (fr)
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products 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 Universal Oil Products Co filed Critical Universal Oil Products Co
Priority to FR6916875A priority Critical patent/FR2044513A5/en
Application granted granted Critical
Publication of FR2044513A5 publication Critical patent/FR2044513A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Butadiene free of C3H4 hydrocarbons is separated from pyrolysis gas contg. a major proportion of C1-5 hydrocarbons including butadiene and C3H4 and a minor proportion of C5 - 400 deg.F hydrocarbons by a) introducing the pyrolysis gases into a first separation zone under conditions sufficient to produce one fraction comprising C1-3 hydrocarbons including C3H4 hydrocarbons and another comprising C3+ hydrocarbons contaminated with C3H4 hydrocarbons; b) passing the latter fraction into a second separation zone under conditions sufficient to produce a third fraction comprising C3 and C4 hydrocarbons including butadiene contg. C3H4 contaminant and a fourth fraction comprising C5+ hydrocarbons and c) passing the third fraction into a third separation zone under distillation conditions (including a temp. less than 225 deg.F and a pressure 25-200 psig less than the pressure in the first separation zone) sufficient to produce a C3 fraction contg. contaminant and a C4 fraction contg. butadiene subst. free of contaminant.
FR6916875A 1969-05-23 1969-05-23 Separation of butadiene from pyrolysis gas Expired FR2044513A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6916875A FR2044513A5 (en) 1969-05-23 1969-05-23 Separation of butadiene from pyrolysis gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6916875A FR2044513A5 (en) 1969-05-23 1969-05-23 Separation of butadiene from pyrolysis gas

Publications (1)

Publication Number Publication Date
FR2044513A5 true FR2044513A5 (en) 1971-02-19

Family

ID=9034512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6916875A Expired FR2044513A5 (en) 1969-05-23 1969-05-23 Separation of butadiene from pyrolysis gas

Country Status (1)

Country Link
FR (1) FR2044513A5 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse