Process for reducing the total acid number in refinery feedstocks
AssigneeSaudi Arabian Oil Company
InventorsOmer Refa Koseoglu, Adnan Al-Hajji, Hendrik Muller, Hanadi Al Jawad
Life of this patent
Estimating the term…
Abstract
A process is described for reducing the total acid number of a refinery feedstock. A refinery feedstock containing naphthenic acids is contacted with an effective amount of solid catalyst that has been pretreated with an aqueous caustic base, for a period of time sufficient to neutralize at least a portion of the naphthenic acids in the feedstock. Thereafter, the aqueous phase is separated from the neutralized refinery feedstock.
Claims24
A process for reducing the total acid number of a refinery feedstock containing naphthenic acids, the process comprising contacting the refinery feedstock containing naphthenic acids with an effective amount of solid catalyst that has been pretreated with a caustic base for a period of time sufficient and at a temperature of at least 200 C to neutralize at least a portion of the naphthenic acids in the refinery feedstock to produce a treated product having reduced total acid number.
Dependencies are inferred from the claim text.