Coker Operations & Technology

Defoamer with and without dispersant 25% 600K cSt RPA CD-16A Background and Challenges A large United States refinery was experiencing high silicone defoamer usages at their delayed coking unit. Average usage of the 600,000 cSt material was 50 gallons per day with spikes as high as 250 gallons per day. Not only did high feed rates significantly increase chemical treatment cost, but the subsequent silicone carryover was creating do