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Hoekstra Trading

1961 Dorset Drive
Wheaton
IL, 60189
USA


Tel : +1 630 330 8159

george.hoekstra@hoekstratrading.com

www.hoekstratrading.com

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The clock is ticking on Tier 3 gasoline

Gasoline sulphur is being reduced in the US to meet the EPA’s Tier 3 standard which requires an annual average of 10 ppm sulphur by 2020. The Tier 3 rule was enacted in 2014, and EPA gave the industry six years to achieve full implementation by 2020. (Note: The standard actually ...


Look what the cat dragged in

In most US refineries, the fluid catalytic cracker (also known as The Cat) is the main unit for converting heavy oils into gasoline and diesel. It produces gasoline (also known as cat gasoline), which is the largest single component of the US gasoline pool. Cat gasoline contains up to ...


Faster lead time for emergency catalyst delivery

An incident caused irreversible poisoning of a catalyst bed in a hydroprocessing unit. The incentive for immediate catalyst replacement was $400,000 per month, and the quoted lead time was unacceptably long.  The refiner used our network to identify two feasible alternatives for faster ...


Hydrogen-starved unit struggles to make ULSD

This is a 36 bar (525 psig) unit that was converted to ulsd service. The first two cycles used Albemarle KF-757 and lasted 6 months compared to one year expected cycle life. They switched to Topsoe catalyst for the next cycle and saw no improvement.

Two suppliers recommended ...


Sulfur speciation analysis helps with feedstock management

Cycle life for successive runs on this diesel hydrotreater has varied from 6 to 18 months.The cycle history was analyzed to assess the difficulty of processing varying feeds. Sulfur speciation analysis enabled measurement of difficult sulfur in the feed components. The unit’s cycle ...