US1676609A - Art of distilling hydrocarbon oils - Google Patents

Art of distilling hydrocarbon oils Download PDF

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Publication number
US1676609A
US1676609A US755429A US75542924A US1676609A US 1676609 A US1676609 A US 1676609A US 755429 A US755429 A US 755429A US 75542924 A US75542924 A US 75542924A US 1676609 A US1676609 A US 1676609A
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United States
Prior art keywords
oil
steam
chamber
vapors
tower
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Expired - Lifetime
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US755429A
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English (en)
Inventor
Roger D Hunneman
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Standard Oil Co
Original Assignee
Standard Oil Co
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Filing date
Publication date
Priority to NL24305D priority Critical patent/NL24305C/xx
Application filed by Standard Oil Co filed Critical Standard Oil Co
Priority to US755429A priority patent/US1676609A/en
Priority to DEST44253D priority patent/DE553046C/de
Application granted granted Critical
Publication of US1676609A publication Critical patent/US1676609A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B01D3/06—Flash distillation

Definitions

  • HUNNEMAiiT or cir-reunio, ⁇ 1LLINoIS, As ⁇ sIGNoR 'ro As'1n1 ⁇ 1 u ⁇ n13oII. 'ooM- PANY, oF, WHITING, .IND1ANA, A coRrrotATIoN or INDIANA. f
  • rlhe present 'invention relates tol improvements in the distillation of hydrocarbon oils, and more particularly of lubricating oils or distillates, for the removal of their lighter fractions and the formation of heavier, viscous lubricant residues. It-will be fully understood from the' following description, illustrated by the accompanying drawing;
  • the numeral l5 indicates a furnace set; ⁇ ting, in which is provided a heating coil-6, of which the initial .portion 6V may suitably be of apipefof a smaller cross-sectional arca.
  • a number' ofv spaced stripping plates '25 (shown diagrammaticallvjas of th'e bubble type) are provided -in the tower lbe'low the enlarged chamber .9, and-'a' number of ⁇ fractionating plates 13 are provided. in the vtower above the enlarged chamber 9.
  • The] 4kactionatingplates are preferably of'a type providing a low pressureadrop; vfor example,
  • a heat .exchange cil'r 29 may be providedin the ⁇ upper portion of j the tower, 'if desired.
  • Steam or .other inert gas may be'v 40 Supplied within v'the tower by Athis means.
  • Vapors pass out of the tower through 'the' pipe-.16 tothe condenser 17,4 at a suitable -.pointin which-a trap 18 may be interposed" -for the separation4 of Acondensed 'oil and' un- .#5 f condensed steam or other uncondense vapor'.- Condensedliquidcontinues through the re.-
  • the uncondensed .-steam and vapors.; from the. trap 18 may-bedrawn thlTOll'gh-pipe 24 by the pump 25 and forcedloo ithroug'h pipe 26 into ⁇ the coil 6,- preferably atan. intermediatepointtherein.. 'Ifjde-l vsired, the steam'so fed in may be preheatedf by' any'suitable means ,as bya tar heat ex- .changed as isl well recognized in the art. 1.05
  • the hydrocarbon oil to. bev distilled is forced through 'line 7 by any' suitable supply means, as a.
  • a' vacuum may bemaintained on.- the tower and heating system by-Ineans l' ofthe pump 22,an absolute pressure to'lO to 1 10 -thecolumn ljthrough'the stripping plates 12, in counter-'current to steamer other inert vapor ⁇ admitted intojthe columnl at or near ⁇ its base through supply pipe 14 and dis-17- 50 millimeters being desirably maintained Where the oil enters the tower.
  • the process isparticularly vadapted for the production of residue stocks, such as viscous lubricating oils, from reduced crude oils or from distillates.
  • residue stocks such as viscous lubricating oils
  • it may be employed for the manufactureA of cylinder stocks or of distillate or residue stocks.
  • ln operating for the production of viscous lubricating ⁇ stocks as residues from paratlin distillates, it has been found desirable to control the heatingof the coil 6 to bring the l oil to a temperature of 625 to 700 F.
  • the steam employed may vary from 1 'to 6 pounds per gallon -of oil distillate, about -one-thirdto one-half of this being admitted into the coil andthe remainder into the tower.
  • the proportion of steam and vapor Withdrawn at the trap and returned vto the coil may obviously 'be readily vcont-rolled.
  • bottom stocks obtained are ot unusually high viscosity as compared With bottom stocks.
  • the cooling coil 28 in the upper part of i the fractionating end ofthe column may be entirely' omitted, if desired, and particularly when a sharp removal of heavy ends from the overhead product is not material.
  • a suitable cooling means such as the coil 28, in the top ofthe column, thetemperature of vthe issuing vapors and the amount ofreflux may be readily controlled in accordance with the character of products desired.
  • the process may be used with other types of oils; for exam le, for the removal of lighterfractionsv rom crude and reduced crude oils.
  • I claim 1 The method of distilling hydrocarbon oils comprising passing the oil in a con- .fined stream ofrestricted cross section through a heating zone into an enlarged sepa-ratlng chamber, separately removing fromA said'separatmg chamber vapors 'and -u'nvaporized liquid, passing the unvaporized liquid in countercurrent to a current of steam, and forcing at least a part of said 4 steam and vapors carried thereby into the stream of ⁇ oil flowing through the heated zone.
  • the lmethod of distilling hydrocarbon oils comprising passing the oil in a confined stream through a heatingzone, discharging 'the oil into a separating chamber, passing-the unvaporizedoil in countercurrent to a current'of steam, subsequentlyv subjecting said steam with the vapors from the separating chamber to reluxing action, and maintainling sub-atmospheric pressure. on the system.
  • the method of distillin'g hydrocarbon oils which comprises passing the oil'in an'- externally heated confined stream through a heating zone, discharging'the oil.
  • Th@J method of distiuing hydrmarimn oils which comprises passing the oil' in an Y externally heated confined stream through a heating-zone. discharging the oil into an unheated separat-ing chamber, 'supplying steaml i realices in said chamber so as to pass through the liquid therein, removing separated vapors and steam from said chamber, subjecting the removed vapors and steam to a controlled refluxing action and returning reflux to the separating chamber.
  • the method of distilling hydrocarbon oils comprisingpassing the oil in a confined stream through a heating zone, discharging the oil into a separating chamber, passing the vunvaporized oil countercurrent to a current of steam, subsequently subjecting said steam to refiuxing action with the vapors from the separating chamber, partially cooling the reuxed vapors and steam, separating uncondensed steam from condensate therefrom and introducing said steam into the coniined stream of oil in the heating Zone.
  • the method of distilling hydrocarbon oils comprising passing the oil in a confined stream through a heating Zone, discharging the oil into a separating cha mbcr, passing the unvaporized oil countercurrent to a current of steam, subsequently subjecting said steam -with the vapors from the separating chamberl to refluxing action, partially cooling the reiluxed vapors and steam, separating uncon. densed steam from condensate therefrom, introducing said steam into the confined stream of oil in the heating zone at an intermediate point, and maintaining sub-atmospheric pressure on the system.
  • ln distillation apparatus i a tower having an intermediate enlarged chamber, stripping plates therebelow, retluxing plates above said chamber, means for introducing steam into the lower portion of said tower, a heatl ing coil emptying into the enlarged chamber lin the tower, means for supplying oil to the heating coils, and means for maintaining subatmospheric pressure within the tower.
  • a tower having an intermediate enlarged chamber, stripping plates below the chamber ⁇ reluxing plates above the chamber, means for heating a continuously flowing stream of oil, meansl for discharging it into the tower within the enlarged chamber, a vapor outlet from the tower, a condenser connected to said outlet, a
  • a tower having an intermediate enlarged chamber, stripping plates below the chamber, retluxing plates above the chamber, means for heating a continuously flowing stream of oil, means for discharging it into the tower within the enlarged chamber', means for partially condensing vapors issuing from the tower, and means for introducing uncondensed vapors into the owing stream of oil.
  • the method of distilling hydrocarbon oils which comprises passing the oil in a coniined stream through a heating zone, discharging the oil into a separating chamber, supplying steam in said chamber at substantially the same temperature as the oil and in thermal equilibrium therewith, separately removingv unvaporized oil and vapors from said chamber, subjecting the removed unvaporized oil to the action of live steam, thereby removing lighter fractions therefrom, withdrawing from the system the thus treated unvaporized oil, and subjecting the removed lighter fractions with the vapors from the separating chamber to a controlled refluxing action.
  • the method of distilling hydrocarbon oils which comprises passing the oil in a confined stream through a heating Zone, discharging the oil into a separating chamber, supplying steam in said chamber at substantially the same temperature as the oil and in thermal equilibrium therewith, separately removing unvaporized oil and vapors from said chamber, .subjecting the removed unvaporized oil to the action oflive steam, thereby removing lighter fractions therefrom, withdrawing from the system the thus treated unvaporized oil, commingling the removed lighter fractions with the vapor contents of the separating chamber ⁇ and subjecting the vapors removed from the separating chamber to a controlled re'luxing action.
  • the metho .of distilling hydrocarbon oils comprisingpassing the oil in a Aconfined 'stream through a'heating zone', discharging the oil into a-separating chamber, passing the'unvaporized oil in countercurrent to acurrent of steam, subsequently subjecting said steam with the vapors from the separating chamber toA reluxing action, and maintaining sub-atmospheric pressure on the systcma V 6.
  • the method of distilling hydrocarbon oils Which ⁇ comprises passing the oil in an ,externally heated confined stream through aheating Zone, discharging the oil into an unheated separating chamber,supplying steam in said chamber'f so as to'.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US755429A 1924-12-12 1924-12-12 Art of distilling hydrocarbon oils Expired - Lifetime US1676609A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL24305D NL24305C (enrdf_load_html_response) 1924-12-12
US755429A US1676609A (en) 1924-12-12 1924-12-12 Art of distilling hydrocarbon oils
DEST44253D DE553046C (de) 1924-12-12 1928-05-20 Verfahren zur ununterbrochenen Destillation von Kohlenwasserstoffoelen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US755429A US1676609A (en) 1924-12-12 1924-12-12 Art of distilling hydrocarbon oils

Publications (1)

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US1676609A true US1676609A (en) 1928-07-10

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US (1) US1676609A (enrdf_load_html_response)
NL (1) NL24305C (enrdf_load_html_response)

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