SPECIAL REPORT: Study: Most-active catalyst improves ULSD economics

A recent study of four commercial hydrodesulfurization (HDS) catalysts found that using the most active one for ultralow-sulfur diesel (ULSD) production resulted in significant economic benefits.The study used heavy, straight-run gas oil (HSRGO) distilled from Urals crude, and hydrotreated it with four commercial catalysts at the conditions prevalent in conventional hydrotreating units operating at low pressure. The catalysts are among the most active currently available. The investigations showed that ultradeep HDS of the HSRGO on the catalysts tested is best described by 1.5-order reaction kinetics. The investigated catalysts exhibited remarkably different activities. A refiner can real...

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