Saudi Arabian Oil Company

Ata Can Koseoglu

Omer Refa Koseoglu

Anas Farkad Alkhani

Methods for operating a hydroprocessing reactor and preventing corrosion in a hydroprocessing unit are provided. The hydroprocessing reactor includes surfaces exposed to corrosive compounds. In one aspect, a graphene-based coating is applied to the surfaces of the reactor. A feed comprising crude oil or its fractions and hydrogen is introduced into the reactor, and the operating temperature of the reactor is increased to 36&#xb0; C.-600&#xb0; C. The reactor is operated at a pressure of 10 bar-250 bar. The feed is then hydroprocessed in the reactor and the coating defines a barrier on the surfaces of the reactor to prevent corrosion. In another aspect, after application of the coating, the coated surface is tested to determine whether the coating covers the entire surface. Additional coating is then applied to one or more areas of the surface that were determined not to be covered by the initial coating.

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Dhahran, Saudi Arabia

Ata Can Koseoglu