Mitigation of refinery process unit fouling using...

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...

Reexamination Certificate

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C208S018000, C208S019000

Reexamination Certificate

active

07901564

ABSTRACT:
Atmospheric and/or vacuum resid fractions of a high solvency dispersive power (HSDP) crude oil are added to a blend of crude oil to prevent fouling of crude oil refinery equipment and to perform on-line cleaning of fouled refinery equipment. The HSDP resid fractions dissolve asphaltene precipitates and maintain suspension of inorganic particulates before coking affects heat exchange surfaces.

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