US1575905A - Process for blending and purifying light hydrocarbons - Google Patents

Description

March 9 1926. 1,575,905 v G. EGLOFF PROCESS FOR BLENDING AND PURIFYING LIGHT HYDROCARBONS Filed Dec. 31, 1920 W 1 X i 1 1 l i 1 I} I fizmflz;

, Patented Mar. 9, 1926.

UNITED STATES PATENT OFFICE.

GUSTAV EGLOFF, OF INDEPENDENCE, KANSAS ASSIGNOR TO UNIVERSAL OIL PROD- UCTS COMPANY, OF CHICAGO, ILLINOIS, A

CORPORATION OF SOUTH DAKOTA.

PROCESS FOR BLENDING AND PURIFYING LIGHT HYDROCARBONS.

Application filed December 31, 1920. Serial No. 434,184.

To all whom it may concern:

1 Be it known that I, Gosmv EGLOFF, a citizen of the United States, residing in the town of Independence, county of Montgomery, and State of Kansas, have invented certain new and useful Improvements in Processes for Blending and Purifying Light Hydrocarbons, of which the following is a specification.

This invention relates to improvements in processes of blending and purifying light hydrocarbon oils and has as its salient object to simultaneously absorb very light hydrocarbons, as for example, casinghead gasoline, from the uncondensable gas by means -of an absorbing fluid, as for example, naphtha and purifying the blending material as part of the same operation and preferably in the same receptacle.

In the drawing, the single figure is a view, partly in side elevation and partly in vertical section, of the apparatus suitable for carrying out the process.

Referring in detail to the drawing, 1 designates the container which may take the form of a vertically extending cylinder provided at its upper end with manhole plate 2 and at its lower end with residue drawofi' 3, having throttle valve 4.. The retort also has a. pressure gauge 5. The blended material is drawn off through the discharge line 6 having throttle valve 7 and leading to the upper end of a suitable receiver 8. This receive-r 8 has liquid drawoff pipe 9 having throttle valve 10 and is also provided with uncondensable gas outlet pipe 11, having throttle valve 12. The container 1 is adapted to be substantially filled with a solution of a base and oxide of a metal carried in a vehicle of a solvent fluid. For example, this purifying material may consist of a liquid solution of caustic soda forming a base and litharge forming the oxide of metal. Light hydrocarbon, as for example, naphtha of 48 degrees Baum gravity, may be introduced by means of a pressure pump through line 13 having throttle valve 14. This line 13" preferably terminates in the perforated extension 15 in the lower end of the container 1. The uncondensable gas, as for example, casinghead gas, gases from by-product coke plants, shale oils or other uncondensable gases containing light hydrocarbons may be introduced by a pressure pump through the pipe 16 having throttle valve 17 the pipe 16 terminating in a perforated extension 18 in the lower part of the member 1. Either the uncondensable gas or absorbing liquid or both of them may be introduced at atmospheric temperature or preheated. If an oil of 58 degrees Baum gravity is desired and 48 degrees Baum gravity naphtha is used as the absorbing medium, then sufficient uncondensable gas should be introduced to give the blend the desired gravity.

The receptacle 1 and purifying solution may. if desired, be heated by means of the closed coil 19 having valve 20, controlling its inlet and valve 21 controlling its discharge. Hot water or saturated or superheated steam may be passed through the coil or if it is desired to reduce the temperature, then cooling brine may be forced through the coil so as to maintain the temperature of the mixing chamber 1, say at zero or below zero. The uncondensable gas is drawn off through the pipe 11 while the purified blend will be drawn off through the pipe 9.

I claim as my invention:

1. A process of blending light gasoline like hydrocarbons contained in uncondensable gas with a somewhat heavier absorbing oil consisting in mixing the two and simultaneously purifying them by passing them through a solution of a base, of caustic soda, and an oxide of a metal, and in regulating the temperature of the solution.

2. A process of blending light. gasolinelike hydrocarbons contained in uncondensable gas with a somewhat heavier absorbing oil consisting in mixing the two and simultaneously purifying them by passing them througha solution of a base and an oxide taneously purifying them by passing them v through a solution of a base and an oxide of ble gas with ing 1n mlxmg the two and simultaneously purifying them while paming them through a solution of a base and an oxide of metal, 10

and in heating the solution through which the gases pass. I

6. A process of blending light gasoline hydrocarbons contained in incondensable gas with a liquid hydrocarbon oil, consists ing in bringing said substances into physical contact in a treating chamber where a 7. A process of awson complete mixing thereof occurs, and in simultaneously passing the mixed substances through a purifying bath.

hydrocarbons contained. in incondensable gas with a liquid hydrocarbon oil, consisting in bringing said substances into physical contact in a treating chamber where a complete mixing thereof occurs, in simultaneously passing the mixed substances lending light gasolinethrough a purifying bath consisting of a solution of a base of caustic soda andan oxide of metal, and in heating such solution during the passage of said substances therethrough.

GUSTA EGLOFF.

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