Abstract: Delayed coke is desulfurized by first contacting the coke with an active sulfur-bearing gas at a temperature high enough to produce a reaction between the sulfur in the coke and the active sulfur in the gas, and then holding the coke in contact with the gas at said high temperature for approximately one hour. An alternative process provides for desulfurization of delayed coke by modifying the second step of the prior process to dilute or replace the sulfur-bearing gas with an inert gas. In a third alternative, the foregoing process is further modified by lowering the temperature during the second or holding step to maintain the reaction between the sulfur-bearing gas and the coke.

Abstract: A process for the formation of 2,6-diphenylphenol involving the autocondensation of cyclohexanone with itself to form a mixture of cyclic ketones containing a tricyclic ketone fraction and the dehydrogenation of the tricyclic ketone fraction to form 2,6-diphenylphenol. The process is characterized by reaction conditions permitting the formation of 2,6-diphenylphenol on a commercial scale that is free of impurities and suitable for many new applications requiring high purity as synthesis of drugs, plastics and the like.