Treatment of petroleum cokes to inhibit coke puffing

Details Treatment of petroleum cokes to inhibit coke puffing Treatment of petroleum cokes to inhibit coke puffing

1991-09-05

1992-06-02

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

432 85, 432 78, F27B 702

Patent

active

051182874

ABSTRACT:
A process for treating high sulfur petroleum coke to inhibit puffing is disclosed wherein particles of the petroleum coke are contacted with a compound containing an alkali or alkaline earth metal selected from the group consisting of sodium, potassium, calcium and magnesium, at an elevated temperature above that at which the alkali or alkaline earth metal compound begins to react with carbon, but below the temperature at which the coke particles would begin to puff in the absence of the compound. The coke particles are maintained at an elevated temperature for a sufficient period of time to permit the reaction to proceed and allow products of reaction to penetrate into the particles and form an alkali-or alkaline-earth-metal-containing deposit throughout the mass of the particles; and then cooling the so-treated coke particles.

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Industrial and Engineering Chemistry by D. A. Fox and A. H. White vol. 23, No. 3, Mar. 1931, pp. 259-266 "Effects of Sodium Carbonate Upon Gasification of Carbon and Production of Producer Gas".

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