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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Oilfield Production Additives Impact on Unconventional Crudes
Crude
Many refiners are processing larger volumes of attractively priced unconventional crudes produced from fracking operations. Contain polymers and other additives that upstream processors are often used to enhance oil recovery or address hydraulic limitations in their operations. These additives can disrupt refining unit operations such as Crude Desalters or restrict the ability of the refiner to meet key product specifications such as JFTOT or NACE Spindle Corrosion test.
Facilitator: Sam Lordo, Becht
Speakers:
Bob Falkiner, Becht
Wesley Teasdale, Halliburton Multi-Chem
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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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Testing and Modelling Crude Oil Compatibility
Crude
Processing crudes from different sources leaves the possibility of blending incompatible mixtures. Compatibility models uses correlations to estimate the potential to create incompatible mixtures. Understanding the potential for compatibility effects without physically testing the crude provides the ability to choose the crude mix and purchase it while the market factors are favorable and the ability to safely purchase distressed cargos. The paper will discuss the basis of model correlations and the application to actual blends.
Facilitator: Sam Lordo, Becht
Speaker: Scott Sayles, Becht
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Best Practices & Technologies for Processing a Variable Crude Diet
Crude, Coking
Successfully processing a changing crude diet can be a challenge from the tank farm through distillation. Upsets and performance reductions lead to processing cost penalties downstream, loss of production, and environmental impacts through greater emissions and brine water quality issues. Optimizing the design, operational parameters and chemical injection schema from crude receipts through the hot train can minimize these cost penalties and ensure performance is maintained.
Facilitators:
Greg Cantley, Marathon
Jeff Zurlo, Veolia
Speaker: Sylvain Fontaine, Veolia
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Crude Unit Corrosion Mechanisms & Impacts of Triazine
Crude, Mechanical Integrity
Corrosion types, mechanisms, and areas impacted will be examined. Additionally, corrosion related to triazines in the crude oil and potential mitigation practices will be discussed.
Facilitator: Harold Eggert, Haliburton
Speakers:
John Acord, Marathon Petroleum Corporation
Amit Patel, Phillips 66
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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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Preserving and Restoring Heat Transfer for Existing Assets
Crude, Coking
Net Zero CO2 emissions by 2050 will require large investments in the oil industry on technologies. New technologies must be developed to reach the target but still need to scale up and mature. Improving the performance of Existing Assets will contribute to reduce the impact on carbon footprint now and advancements in cleaning techniques can restore more lost heat transfer more efficiently than traditional methods.
Petroval will discuss technologies to preserve heat transfer by maintaining clean surfaces further into the run, while Clean as New will discuss the varying benefits & limitations of techniques to restore lost heat transfer from fouling.
Facilitators:
Sam Lordo, Becht
Jacob Young, Petroval
Speakers:
Nicolas Aubin, Petroval
Roberto Tomotaki, Clean as New
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