US1935067A - Art of coking hydrocarbons - Google Patents

Description

Nov. 14, 1933. A. c. voBAcH ET AL.

ART OF COKING HYDROCARBONS Filed March 7. 1929 ATTORNEYS Patented Nov. 14, 1933 PATENT OFFICE ART oF coKING HrnnocAnoNs Arnold o. volition, Whiting, Ind., and Home K.

Rogers, Chicago, Ill., assignors to Sinclair Relining Company, New York, N. Y., a corporation of Maine Application March -f1, 1929. serial No. 345,004

3 Claims.

This invention relates to an apparatus for carrying out coking operations in which a charge of coke is formed and deposited within a coking` coking operation after discharge of the cokeI lo product. 1t also promotes the production of commercially more valuable lump coke, minimizing'tlle production of coke fines. It has other advantages, particularly in certain forms, which will appear as the description proceeds.

One form of apparatus embodying the invention is illustrated, diagrammatically and conventionally, in elevation and partly in section, in the accompanying drawing.

Referring to the drawing, the coking receptacle 2o there illustrated comprises a frustrum-shaped chamber 1, a removable head 2 and a rama. The head 2, when removed, leaves the larger end of the chamber 1 open over. its entire area. This large-diameter head may, for example, be sealed as described in application Serial No. 344,940, filed March 17, 1929, by Eugene lC'. Herthel, now Patent No. 1,819,095. The ram 3 is positioned in the smaller end of the chamber 1 and is adapted to be driven, axially, into the chamber 1 for displacing coke charges therefrom. The ram illustrated is hydraulically powered; any convenient power means may be used. The chamber 1 is lined with lire-brick, which may be supported by strips, horizontally arranged, fastened to the interior of the chamber shell. This lining, identied in the drawing by the reference numeral 8, is,vwith advantage, covered with an inner lining 9 of some frangible material, a fire-clay or fire- .clay and water-glass paste for example.

The coking receptacle illustrated is arranged with the larger end up and the smaller end down. This is a particularly advantageous arrangement. An unusually large vapor space is thus provided above the accumulating charge of coke in operl ation. A heavy oil stock to be coked is sprayed in through connection4, the coking medium, a hot gas and vapor mixture from a vapor phase oil cracking operation for example, is'released within the coking receptacle through connection 5,

andthe resulting vapor mixture escapes through the vapor outlet l6. The connection 5, or'each of such connections if several are provided, may, with advantage, be arranged tangentially to prolong the travel of the coking medium through the coking receptacle.

v removable head adapted to close the larger end The coking receptacle may also be arranged, for example, in anv inverted position, withthe smaller end up. In this position the ram is assisted by gravity in displacing coke charges from the coking receptacle.

The coking operation proper may, for example, be carried out as described in applications Serial No. 340,996, filed February 18, 1929, and Serial No. 341,214, led February 19, 1929, by Harry L. Pelzer, now Patent No. 1,831,719 and Patent No. 1,873,024, respectively, and Serial No. 347,533, ledMaroh 16, 1929, by Edward W. Isom andl George H. Taber, Jr., now Patent No. 1,873,068. The apparatus of the invention is of special value for carrying out these operations, but it is also of more general application.

In operation, with the apparatus illustrated, assuming the coking receptacle cleaned and lined, the head 2 is clamped in place withone or more loops 7 of wire rope suspended within the coking chamber from the head. The coking operation is then begun. When the coking operation proper is completed, the head 2 is removed leaving 1the loop or loops 7 imbedded in the coke charge. The coke charge is then displaced by forcing the ram 3 into the coking chamber, the force of the ram acting to fracture the lining 9 and release the coke charge. This is easily effected when a frangible inner lining is used. The entire mass of coke constituting the cokecharge is then hoisted from the chamber 1, by means of the loop or loops 7. The inner lining is then renewed, the head 2 replaced, and the next coking operation begun.

We claim:

1. In the manufacture of coke from heavy oil stocks by reducing the heavy oil stock to coke in a coking receptacle, the improvement comprising covering the interior of the coking receptacle with a frangible material to provide a frangible lining, reducing the heavy oil stock to ya solid coke mass in the coking receptacle by intimately contacting a hot 'gaseous material with the heavy oil stock, fracturing the frangible lining by applying force to the coke mass, and removing the coke en bloc from the coking receptacle.

2. A coking receptacle comprising` a frustrumshaped chamber, a frangible lining therefor, a

of said chamber and, when removed, to leave the larger end of said chamber open over its entire area, and a rampositioned in thev smaller end of said chamber adapted to move axially into said chamber.

material within the lower portion of the chamber, said means being disposed entirely outside of the inner surface of the chamber, and a ram positioned in the smaller end of said. chamber adapted to move axially into said chamber.

ARNOLD C. VOBACH. HORACE K. ROGERS.

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