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Innovative method solves catalyst pinning problem

06/09/2008
Installation of a restriction orifice in a regeneration gas blower solved catalyst plugging and blowouts in a continuous catalyst regeneration (CCR) tower in Saudi Aramco’s Yanbu refinery. This solution allowed the unit to avoid shutdowns that would have cost the refiner about $600,000/day.The CCR section of the Yanbu platformer unit was experiencing successive catalyst blowouts, which led to shutdowns of the regeneration section. This caused the platformer section to operate at reduced feed rates, 30,000 b/d vs. 40,000 b/d, and severities, 95 RON vs. 100 RON.Saudi Aramco’s Yanbu refinery and process department and the control system department worked jointly to troubleshoot a...
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