3. Preheat Train Monitoring Methods
How do you reprocess slop oil in your refinery? Join us at this Town Hall session to discuss how others in the refining industry handle slop and best practices for success. Come share your experiences with the group and learn from industry experts about effective slop oil reprocessing techniques.
In this session we will discuss symptoms, causes, and consequences of an Acid Runaway in an Alkylation Unit and how to recognize and respond to an acid runaway. This track will also discuss lessons learned from acid runaway incidents across the industry.
Participants will: Gain an understanding of what’s an acid runaway, Develop acid runaway monitoring parameters, Develop acid runaway response guidance.
Pyrophoric materials pose significant safety risks during unit shutdown and maintenance activities, and pyrophoric incidents continue to occur across the refining industry. Effective strategies for prevention and mitigation of pyrophoric activity are critical aspects of turnaround planning and execution. This presentation will explore the underlying mechanisms of pyrophoricity and discuss best practices for managing pyrophoric risk, including chemical treatment, engineering, and procedural solutions. Additionally, the presentation will dig into a real industry incident that occurred in 2017, the root causes and the steps taken in the past seven years to prevent recurrence. By providing a comprehensive overview of pyrophoric activity prevention strategies, this session aims to equip refining professionals with the knowledge and tools to mitigate safety hazards and enhance operational integrity in high-risk environments.
Moderators:
Diana Cheek, Chevron U.S.A. Inc.
Katie Marshall, Refined Technologies, Inc.
Presenters:
Diana Cheek, Chevron U.S.A. Inc.
Katie Marshall, Refined Technologies, Inc.
Dan Wood, HF Sinclair
Today’s refiners are looking for newer technologies to product better quality alkylate. This session will review innovative processes, including:
The K-SAAT® process, which produces higher quality alkylate using an engineered non-corrosive solid-acid catalyst. The K-SAAT® process eliminates the need for liquid acid catalyst, and is an ideal low cost solution for refiners looking to upgrade their existing Alkylation process. Participants will gain an understanding of how refiners can revamp an existing Alkylation unit to produce better quality alkylate through case studies that illustrate examples of such a conversion and the benefits achieved.
The ISOALKY™ Technology, commercialized by Chevron and UOP, which offers benefits (product quality and yields) and economics compared to traditional alkylation technologies. The ISOALKY™ Catalyst is a non-volatile ionic liquid that does not require offsite regeneration. ISOALKY™ Technology can be used for green field plants or retrofit/expansion of existing alkylation units. The first commercial ISOALKY™ Unit has been successfully operating at the Chevron Salt Lake Refinery since January 2021, and the first unit turnaround was completed in October 2024. Participants will gain information on the ISOALKY™ Technology as well as the commercial operation, including turnaround learnings.
Units in the refinery are interconnected and operational changes to an upstream often create challenges for downstream units. We will review how normal and abnormal FCC operations impact Alky feeds. We will also discuss Alky feed specifications and the impact to acid consumption and alkylate quality.
1. Slop Oil Reprocessing 2. Vacuum Tower Washbed Maintenance
How do you reprocess slop oil in your refinery? Join us at this Town Hall session to discuss how others in the refining industry handle slop and best practices for success. Come share your experiences with the group and learn from industry experts about effective slop oil reprocessing techniques.
Refineries have increased focus on processing unfamiliar opportunity crude oils to improve profitability. However, the introduction of these new crude slates brings uncertainties that can impact refinery operations. One major challenge is crude incompatibility due to asphaltene instability, which affects desalters, emulsion stability, preheat trains and furnace fouling.
For decades, the industry has recognized the importance of tracking asphaltene stability. Suppliers and refineries employ diverse equipment to assess feeds stability including benchtop microscopy and titration equipment. Unfortunately, those methods can require time-consuming offsite laboratory testing.
Now, utilizing a portable, handheld near-infrared (NIR) analyzer, crude oil tanks and other refinery feeds can be assessed for stability and blending suitability with near instantaneous results. NIR spectra from crude oil samples are collected and compared against a database of crudes and crude unit feeds with known asphaltene stability parameters. Asphaltene stability parameters are modeled and reported with a stability assessment.
In the presentation, we will delve into the fundamentals of these available tools, showcasing real-world case studies where they have been successfully applied for crude blends and crude pretreatment to improve and optimize desalter operations and crude preheat train fouling.