GB906980A - Improvements in or relating to vaporizing olefin-containing streams - Google Patents

Improvements in or relating to vaporizing olefin-containing streams

Info

Publication number
GB906980A
GB906980A GB13727/61A GB1372761A GB906980A GB 906980 A GB906980 A GB 906980A GB 13727/61 A GB13727/61 A GB 13727/61A GB 1372761 A GB1372761 A GB 1372761A GB 906980 A GB906980 A GB 906980A
Authority
GB
United Kingdom
Prior art keywords
steam
hydrocarbon
olefins
direct
superheated
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
GB13727/61A
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 Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB906980A publication Critical patent/GB906980A/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
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/38—Steam distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/321—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00—Chemistry of hydrocarbon compounds
    • Y10S585/909—Heat considerations
    • Y10S585/911—Heat considerations introducing, maintaining, or removing heat by atypical procedure
    • Y10S585/914—Phase change, e.g. evaporation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00—Chemistry of hydrocarbon compounds
    • Y10S585/949—Miscellaneous considerations
    • Y10S585/95—Prevention or removal of corrosion or solid deposits

Landscapes

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

Abstract

The vaporization of a liquid hydrocarbon stream containing C3-C6 olefins is effected by direct contact with steam, e.g. in a distillation column, where the hydrocarbon is introduced at the top and direct steam below. The condensed water washes away deposits and prevents fouling. The steam used is preferably saturated but may be superheated. Where the vapour stream is to be used as feed to a dehydrogenation unit, excess steam is added to give the required steam: hydrocarbon ratio, e.g. 0,1-1 by weight, and an overhead temperature of 100 DEG -400 DEG F.ALSO:The vaporization of a liquid hydrocarbon stream containing C3-C6 olefins is effected by direct contact with steam, e.g. in a distillation column, where the hydrocarbon is introduced at the top and direct steam below. The condensed water washes away deposits and prevents fouling. The steam used is preferably saturated but may be superheated. Where the vapour stream is to be used as feed to a dehydrogenation unit, excess steam is added to give the required steam: hydrocarbon ratio, e.g. 0.1-1 by weight, and an overhead temperature of 100-400 DEG F. The dehydrogenation of C4-C6 olefins to diolefins over calcium nickel phosphate-chromium oxide is described.
GB13727/61A 1960-05-27 1961-04-17 Improvements in or relating to vaporizing olefin-containing streams Expired GB906980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32315A US3179709A (en) 1960-05-27 1960-05-27 Process of heating olefin feed to dehydrogenation process

Publications (1)

Publication Number Publication Date
GB906980A true GB906980A (en) 1962-09-26

Family

ID=21864278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13727/61A Expired GB906980A (en) 1960-05-27 1961-04-17 Improvements in or relating to vaporizing olefin-containing streams

Country Status (2)

Country Link
US (1) US3179709A (en)
GB (1) GB906980A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067921A (en) * 1976-12-06 1978-01-10 The Dow Chemical Company Primary adjunct, continuous diene process
US5442921A (en) * 1993-02-22 1995-08-22 Epri Targeted fluid delivery system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733285A (en) * 1956-01-31 Recovery of hydrocarbons from highly
CA591209A (en) * 1960-01-19 E. Worthington Albert Extraction of hydrocarbons from water
US2297004A (en) * 1938-12-01 1942-09-29 Lee Alan Porter Distillation of organic liquids
US2367623A (en) * 1941-09-27 1945-01-16 Phillips Petroleum Co Process for dehydrogenation of hydrocarbons
US2411808A (en) * 1943-07-14 1946-11-26 Standard Oil Dev Co Separation of hydrocarbons from water miscible liquids by distillation and washing
US2459449A (en) * 1946-06-10 1949-01-18 Standard Oil Dev Co Catalytic dehydrogenation of olefinic hydrocarbons while maintaining the potassium content of the catalyst
US2509900A (en) * 1946-10-12 1950-05-30 Standard Oil Dev Co Method for supplying tempering steam and regeneration gas to a catalyst
US2918508A (en) * 1957-12-02 1959-12-22 Standard Oil Co Polyisobutylene production
US2957928A (en) * 1958-09-25 1960-10-25 Exxon Research Engineering Co Production of diolefins

Also Published As

Publication number Publication date
US3179709A (en) 1965-04-20

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