US1613737A - Producing residual oil products - Google Patents

Producing residual oil products Download PDF

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Publication number
US1613737A
US1613737A US750489A US75048924A US1613737A US 1613737 A US1613737 A US 1613737A US 750489 A US750489 A US 750489A US 75048924 A US75048924 A US 75048924A US 1613737 A US1613737 A US 1613737A
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United States
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products
residual oil
oil products
oil
engler
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US750489A
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Edward E Bartels
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Standard Oil Co
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Standard Oil Co
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    • 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
    • C10G7/00—Distillation of hydrocarbon oils

Definitions

  • The, present invention relates to improvements in the handling of pressure tar, by which term is designated the residual product of the conversion under pressure ot hydrocarbon'oils into gasoline, the lighter por-- tions thereof (containing gasoline) having been removed.
  • An average pressure tar resulting from the operation of the Burton process, for example, may have a Baume gravity of 18.
  • a battery or series of successive stills is used in running down the pressure tar; an intermediate residual product is drawn off from an intermediate still in the system, th scorresponding to the lightest of the desired commercial products, and a residue or tar is simultaneously drawn off from'theend of the system, this corresponding to the heaviest of the commercial products.
  • the light road oil (viscosity 1.5 Engler) may be drawn off as a residue, for example, from the seventh still. and the fluxing oil (viscosity 6 Engler) may suitably be drawn off as a residue from the last still.
  • the jintermediateproducts ot' the desired viscosities may then be produced in the desired quantities in accordance with market demands by mixing or blending the heavy residue and the intermediate product drawn oil.
  • the second grade of road oil above referred to (viscosity 2.5 Engler) may be produced and by mixing them in the proportion of about 70 to 30, the heaviest road oil (viscosity 3 Engler) may be produced.

Description

Patented Jan. 11, 1927.
UNITED. STATES PATENT OFFICE.
EDWARD E. BABTELS, OF W HITING, INDIANA, ASSIGNOR TO STANDARD OIL COM- PANY, OF WHITING, INDIANA, A CORPORATION OF INDIANA.
PRODUCING RESIDUAL 'OIL PRODUCTS.
No Drawing.
The, present invention relates to improvements in the handling of pressure tar, by which term is designated the residual product of the conversion under pressure ot hydrocarbon'oils into gasoline, the lighter por-- tions thereof (containing gasoline) having been removed. An average pressure tar, resulting from the operation of the Burton process, for example, may have a Baume gravity of 18.
In the running down of pressure tar for the formation of various grades of road oils and fluxing oils, it has hitherto been customary to employ series of stills in ordinary continuous operation, the operation of the entire battery or series of stillsbeing controlled for the production, as a residue, of a specific one of the commercial grades of such oils. Thus it hasbeen customary to produce from pressure tar in this manner four or more products of increasing vis'osity, some being designated as road oils and the heaviest as fluxing oils. The lightest of these products, the first road oil, may have, for example, a viscosity of 1.5 Engler. The heaviest or' fluxing oil product may have a viscosity of 6 Engler, intermediate road oil products having viscosities, for example, of 2 5 Engler and 3 Engler, the viscosity being measured in each case at 212 F.
Variation in the simultaneous market requirements for the various products has made this method of running very uneconomical and disadvantageous, usually it has been found necessary to make certain of the products in batch stills While the battery is in use for the manufacture of the products for which there is the greatest demand.
In carrying out the present'invention, a battery or series of successive stills is used in running down the pressure tar; an intermediate residual product is drawn off from an intermediate still in the system, th scorresponding to the lightest of the desired commercial products, and a residue or tar is simultaneously drawn off from'theend of the system, this corresponding to the heaviest of the commercial products. ample, if a system consisting "of ten stills is operated continuously on pressure tar of For ex Application filed November 17, 1924. Serial No. 750,489.
the character above set. forth, the light road oil (viscosity 1.5 Engler) may be drawn off as a residue, for example, from the seventh still. and the fluxing oil (viscosity 6 Engler) may suitably be drawn off as a residue from the last still. The jintermediateproducts ot' the desired viscosities may then be produced in the desired quantities in accordance with market demands by mixing or blending the heavy residue and the intermediate product drawn oil. Thus, by mixing them in the proportion of about 45 to 55, the second grade of road oil above referred to (viscosity 2.5 Engler) may be produced and by mixing them in the proportion of about 70 to 30, the heaviest road oil (viscosity 3 Engler) may be produced.
It is to be understood that the figures and proportions above given are intended for purposes of illustration only, and that the process may readily be adapted for use in connection with any type of residual'products' produced by continuous distillation, either with fire alone or with lire and steam.
I claim:
1. The method offorming a plurality of residual products by continuous distillation of a hydrocarbon oil in a succession of stills, which comprises drawing off as a residual from an intermediate one of said stills the desired product of the lightest grade, drawing off from the end still. a residue having the properties of the desired product of the heaviest grade, and blending said products to produce the desired products of intermediate grade.
2. The method of reducing pressure tar for the formation of a plurality of residual products of predetermined viscosities coin.-
at 212 F., and blending said residues to produce intermediate products (ii-desired visrosities- EDWARD E. BARTEL'S.
US750489A 1924-11-17 1924-11-17 Producing residual oil products Expired - Lifetime US1613737A (en)

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