Retrofitted hydrotreater feed filters reduce operating cost, waste handling

Retrofitting hydrotreater-feed filters with wire-mesh filters significantly reduced the operating cost at Syncrude Canada Ltd.'s Alberta oilsands plant. It also improved the specification of solids in the coker gas-oil feed.The plant originally used wedge-wire filters in this service. After testing wire-mesh filters in a laboratory-scale model of the plant, Syncrude decided to use them.Feed filtration removes solid contaminants that cause plugging of fixed-bed catalyst processes. To improve process efficiency, many refineries have feed-filtration systems. Filtration equipment allows refineries more flexibility in feedstock handling and extension of unit run-lengths.1-3Traditionally, t...

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