Removal of sulphur together with other contaminants from fluids
Removal of surfactants from hydrocarbons with alcohol
Removal of topped crude demineralization sediment by backwashing
Removal of trace olefins from aromatic hydrocarbons
Removing contaminant from hydrocarbonaceous fluid
Removing halogenated polyphenyl materials from used oil products
Removing water haze from distillate fuels
Reprocessing of contaminated oils
Rerefining used lubricating oil with hydride reducing agents
Rerefining used oil with borohydride reducing agents
Resid hydrocracking using dispersed metal catalysts
Resid hydroprocessing catalyst
Resid hydrotreating process using lanthana-alumina-aluminum phos
Resid hydrotreating using solvent extraction and deep vacuum red
Resid hydrotreating with high temperature flash drum recycle oil
Resid hydrotreating with resins
Resid upgrading process
Residua demetalation/desulfurization catalyst and methods for it
Residual oil desulfurization in multiple zones without concommit
Reverse-graded catalyst systems for hydrodemetalation and hydrod