Refining - Features©2015 Hydrocarbon Processing60Refining - FeaturesDesign pressure reduction in high-pressure heat exchangers with dynamic simulationA commercial simulation tool is used to carry out the analysis of the transient phenomena caused by the tube rupture event during the design phase of an HP heat exchanger. Guidance is provided on how to carry out this type of dynamic study., 01 Oct 2015 00:00:00 GMTImprove refinery margins with new crude selection conceptA refinery with an active crude selection strategy encompassing dedicated staff, preapproval of all new crudes and an updated crude acceptance window can gain $0.5/bbl–$1/bbl vs. a more passive strategy., 01 Oct 2015 00:00:00 GMTNOx, NOx, who’s there—steam cracker or SMR?This article addresses the generation of thermal NOx in the furnace of each process, NOx abatement by SCR, and premature degradation of SCR catalyst by chromium species in the flue gas., 01 Oct 2015 00:00:00 GMTRethink specifications for fired heaters, 01 Oct 2015 00:00:00 GMTUse root cause analysis to examine failure of a cooling water pumpWithout a holistic approach and a structured root cause analysis, it is hard to unearth complex and multiple issues, particularly design deficiencies. Maintenance efforts go to waste when root causes are not identified and addressed., 01 Oct 2015 00:00:00 GMT