Comprehensive Reagent Protection of the Visbreaking Unit in Order to Increase the Overhaul Run

Abstract

A detailed analysis of chemical reagents that are used in visbreaking units at oil refineries is presented. Additives have been identified that are used in a number of refineries, such as a passivator, coke inhibitor, dispersant, corrosion inhibitor, neutralizer, defoamer or antifoaming agent. The most vulnerable points of the visbreaking installation technology are considered. A diagram is presented with the designation of areas with possible problems, namely foaming of the oil product, contamination by coke deposits of equipment, corrosion of helmet lines, the possible formation of hydrogen sulfide and other undesirable components. A comprehensive review of each reagent allows you to understand its purpose at the facility, to understand the mechanisms of the action of reagents. The approximate compositions of each reagent are analyzed, the requirements for additives are considered.