September 2008

Special Report: Refining Developments

Rethink desalting strategies when handling heavy feedstocks

Oil sands based crudes bring extra processing challenges for crude units and wastewater treatment plans

Bieber, S., Kremer, L., Baker Petrolite Corp.

Refiners are accepting "challenge" feedstocks as part of their crude slates to improve margins. Such crude oils may have a lower cost, but require more processing to yield end products. Challenging Canadian feedstocks are lower in API and contain high levels of filterable solids, unstable asphaltenes or difficult-to-remove chloride salts. These feeds are especially problematic to desalter operations. Several case histories discuss operating practices that can be used to improve the processing of challenge crudes. New crudes. Refineries in Canada and the US process a variety of crude feedstocks from Alberta and Saskatchewan, often denoted as Western Canadian sedimentary basin (WCSB) feedst

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