HF Alky Isobutane Exchanger Bypass Leak
Learnings from Incidents, HF Alkylation
In 2021, hydrofluoric acid vapors were detected by the safety instrumented subsystem (SIS) line of sight laser detection system, which activated both the rapid acid dump system and the fire suppression/unit deluge system. The source of the leak was determined to be the bypass line around the isobutane recycle cooler. Topics discussed: Residual Elements, CMLs for high RE, PMI for high RE, low flow and process deadleg identification.
Speaker:
Mark Geisenhoff, Flint Hills Resource
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Casting Quality Issues in HF Alky Valves
HF Alkylation
Over the last few years, there has been an increase in through body leaks on cast HF Alkylation valves. This presentation will review several real life examples of casting failures on valves in HF Alkylation service including cross sections of the failure location. These failures have occurred on both low RE carbon steel and Alloy 400 (M35-1) castings. Some common causes of casting failures will be reviewed including sand inclusions, porosity and varying levels of shrinkage. Common locations of casting quality issues with HF Alkylation valves will be discussed including the bottom bowl area and the body to end flange transition on Alloy 400 plug valves. The presentation will also cover some of the methods that are being implemented in the industry to improve the casting quality of HF Alkylation valves along with efforts to standardize and consolidate requirements for these valves.
Speaker: Michael Alford, Marathon Petroleum
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API RP 751 Section 6
HF Alkylation, Mechanical Integrity
Join this session to hear the latest on API's 5th edition of Recommended Practice (RP) 751, Safe Operation of Hydrofluoric Acid Alkylation Unit. In this session, we're discussing maintenance from the operator perspective, integrity management and other safety programs for hydrofluoric (HF) acid alkylation units.
Facilitator: Herb Haught, CVR Energy
Speaker: Monica Plowman, Ethos Mechanical Integrity
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DSA Award Winner Panel
Award Winners
Moderator: Larry Webb, Flint Hills Resources, LLC
Speakers:
Adam Piegols & Joseph Hurd, Marathon Petroleum Company - Canton Refinery
Drew Graham & Tyson Bagley, Phillips 66 - San Francisco Refinery
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Innovation Award Winners — Process Safety
Award Winners, Process Safety
Moderator: Shanahan Mondal, Cheniere Energy
Speakers:
Andrew Laszewsk, Cenovus Energy - Superior Refinery
Layne Boudreaux, Gabe LaLande, Todd Conner & Lowell Nance, Cheniere Energy - Sabine Pass Liquefaction
David Ybarra, Sascha Schieke & Bart Aupperle, Flint Hills Resources - Corpus Christi Complex
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DSA Award Winner Panel
Award Winners
Moderator: Larry Webb, Flint Hills Resources, LLC
Speakers:
Nick Martin & Barret Von Behren, Marathon Petroleum Company - Robinson Refinery
Ben Way & Kacey Lopez, Phillips 66 - Sweeny Refinery
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