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3. Slurry-phase hydrocracking? possible solution to refining margins: opportunity crudes require more hydrogen addition to upgrade orphan product streams into higher-value ‘clean’ products;Motaghi;Hydrocarbon Process (International ed),2011
4. A review of recent advances on process technologies for upgrading of heavy oils and residua;Rana;Fuel,2007
5. Combined process schemes for upgrading of heavy petroleum;Castaneda;Fuel,2012