DECREASING FOULING IN HYDROCARBON-BASED FLUIDS

摘要

An effective amount of at least one first component and an effective amount of at least one second component may contact a hydrocarbon-based fluid or be introduced into a hydrocarbon-based fluid having at least one foulant for decreasing the fouling by the foulant(s) as compared to an otherwise identical hydrocarbon-based fluid absent the first component(s) and second component(s). The first component(s) may be considered a dispersant, and the second component(s) may be considered free radical inhibitors in a non-limiting embodiment.

主权项

1. A method for decreasing fouling during the refining of a hydrocarbon-based fluid comprising at least one foulant; wherein the method comprises:
contacting the hydrocarbon-based fluid with an effective amount of at least one first component to decrease fouling by the at least one foulant; wherein the at least one first component is selected from the group consisting of an acrylate vinyl pyrolidinone copolymer, a succinimide, an alpha olefin and maleic anhydride reaction product, a reaction product from nonyl phenol reaction with ethylene diamine, a C24-C28 olefin and maleic anhydride copolymer, a Mannich reaction product, a dodecyl/tert-octyl phenol resin, a sulfonic acid, an inorganic overbase, and combinations thereof; contacting the hydrocarbon-based fluid with an effective amount of at least one second component to decrease fouling by the at least one foulant; wherein the at least one second component is selected from the group consisting of 2,6-di-tert-butyl-4-methylphenol; 4-sec-butyl-2,6-di-tert-butylphenol; mixed tertiary butyl phenols; mixed hindered phenols; butylated hydroxytoluenes; quinones; amino-para-cresols; and combinations thereof; wherein the contacting the hydrocarbon-based fluid with the at least one first component and the at least one second component occurs at the same time or a different time; and decreasing the fouling by the at least one foulant within the hydrocarbon-based fluid as compared to an otherwise identical hydrocarbon-based fluid absent the contacting the hydrocarbon-based fluid with the at least one first component and the at least one second component.