US1266281A - Apparatus for refining mineral oils. - Google Patents

Description

c. E. LA PP.

APPARATUS FOR REFINING MINERAL OILS.

APPLICATION FILED NOV. 5, 19!?- Patented May 14, 1918.

INVENTOR CLEMENS El LAPP lid CLEMENS E. LAPP, 0]? LOS ANGELES, CALIFORNIA.

APPARATUS FQR REFINING MINERAL OILS.-

aeegaesi.

Specification of Letters Patent.

Patented May id, 1918..

Application filed November 5, 1917. Serial No.'200,257.

To all whom it may concern:

Be it known that I, CLEMENS E. L'Arr, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Apparatus for Refining Mineral Oils, of which the following is a specification.

This invention relates to an apparatus for refining mineral oils.

The principal object of this invention is to provide an apparatus for the distillation of mineral oils which will provide means for continuously treating such oils, to successively increasing temperatures whereby the volatile hydrocarbon fluids will be distilled from the oil and will be drawn ofi at various points along the flow of the oil throughthe furnace, thus allowing the various grades of light hydrocarbons to be separately and con tinuously drawn from the liquid as it is treated at difi'erent temperatures.

Another object of this invention is to provide an apparatus of the above class through which hydrocarbon oils may be fractionally distilled and which will carry away the hydrocarbon vapors during the distilling operation, and which will reduce carbon deposits to a minimum within the coils of the distilling furnace, thus insuring thap the furnace may be operated continuous y.

Other objects will appear hereinafter.

The invention is illustrated, by way of example, in the accompanying drawlngs in which:

Figure 1 is a view in side elevation illustrating the distilling furnace used in the refining apparatus, with parts broken away to more clearly disclose th coils therein and the draw-0E pipe leading therefrom.

Fig. 2 is a view in perspective illustrating one of the supporting column elements by which the "co'nvolutions of the coil. within co the'furnace are spaced from each other and held in fixed positions.

Referring more particularly to the drawings, 10 indicates a base-upon which the cylindrical outer wall 11 of the refining" furnac is positioned. This wall inclosesa cylindrical heat chamber 12 and a fire box 13 disposed therebeneath. A door 14 is rov'ided through which access to the fire ox ma be obtained, while a cleaning door 15 I is osed beneath the do'br 14 to provide draft and allow access to the ash pit of the fire box. It will be understood that gas or combustible material ma be used in the furnace. The upper end of the heat chamber is preferably fitted witha frusto-conical head 16, the apex of which is in communication with a flue pipe 17 through which the products of combustion are drawn off.

Arranged within the heat chamber and concentricwith the cylindrical wall thereof is a distilling coil 18 composed of a series of convolutions of pipe disposed in helical fashion adjacent the wall of the chamber and through thecenter of which hot gases from the fire box may pass. The convolutions of this coil are held in position by supporting columns 19 here shown as composed of separate units 20, as illustrated in Fig. 2. These units are formed with seats 21 and 22 at their opposite ends upon which the adjacent walls of the coil may rest.

Rivet holes are formed through the opposite. ends of the units so that they maybe assembled as shown in Fig. 1 and rigidly held by rivets 23.

The upper end of the coil is fitted with an oil inlet pipe 24 having a control valve 24 which is in communication with a supply tank and is preferably led through a preheater of suitable design. The opposite end of the coil is fitted with a draw-off pipe 25 which communicates with a residuum tank into which the residue of the oil is carried.

In order that the hydrocarbon vapors and gases produced by the distillation may be carried off, a series of draw-off pipes 26 are tapped into the coil at various points along its length and extend substantially vertically to provide an escape for these vapors and gases. It will be noted that the temperature within the furnace will decrease as the heat passesupwardly through the coil.

and away from the firebox. Thus the various convolutions of the coil will be subjected to different de ees of heat and the oil passing through t e coil will therefore carried at substantially atmospi sures.

The rapidity of the fiovv of the mineral to he treated may be controlled by valve E l, thus also controlling the tem" tim or the mineral oil in its passage thcoil 18. residue may, of course be subjected to another cycle .01": treatment through tne coil 1 either alone or with untreated mineral oil.

The temperature to which the oil under treatment is subjected may be varied as desired, by t is control of the combustion in the furnace and the rate or flow oi the oil through the coil 18. it may increase the temperature so that considerable cracking occurs, especially in the lower section or" the coil 18. Such higher temperatures may he found desirable when the residue is suhj ected to a successive treatment.

llt Will thus he seen that the apparatus here disclosed While simple in its construction, will operate continuously to refine mineral oils and allow the hydrocarbon vapors and gases to be drawn 0% in the order they are produced and conveyed away separately.

While 1 have shown the preferred con struction of my apparatus for refining mineral oils as now lrnovvn to me, it will he understood that various changes in the comhinetion, construction and arrangement of parts may he made by those skilled in the art Without departing from the spirit o1 my invention as claimed.

1 claim: I

1. in apparatus for refining oil, a base, a cylindrical Wall mounted upon the base a helical pipe coil mounted vertically with in the cylindrical well; there being supporting columns to engage the convolutions of the coil and hold the convolutions regularly spaced apart said supporting columns being made up of units fitting together end to end and having seats in their ends to receive the convolutions of the coil; and means for securing the units together.

2. in an apparatus for refining oil, a base, a cylindrical wall mounted upon the base, a helical pipe coil mounted vertically Within the cylindrical Well; there being supporting columns to engage the convolutions of the coil and hold the convolutions regularly spaced apart, said supporting columns losing made up of units fitting together end to end and having seats in their ends to receive the convolutions of the coil; means for securing the units together, and draw-0d pipes leading upwardly from various parts of the coil.

In testimony whereof I have signed my name to this specification.

CLEMENS E. LAPP.

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