Canadian Refiner replaced the Shake Test with on-line UOP Mercaptide Sensors to monitor the extent of Merox caustic regeneration. Mercaptide Sensor use resulted in continuously trended data, reduced caustic exposure, and proactive process variable optimization, while vastly reducing off specification incidences and unnecessary bulk caustic replacements.
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.
Operational case studies of DHT, GOHT, and NHT feed /effluent exchanger threats are presented with monitoring, reliability, and chemical addition strategies. Mitigating threats of feed side and effluent side fouling and corrosion over time also requires sustaining institutional knowledge through constant change of stream composition, temperatures, AND people. This presentation includes tips and tricks of templated calculations, use of Decision Support Tools, industry knowledge, vendor relationships and support, and cross-site sharing of findings.
Moderators:
Del Grotewold, Veolia Water Technologies & Solutions
Wendy Wildenberg, Flint Hills Resources, LLC
Speakers:
Darin Foote, CHS Inc.
Chuck Johnston, Marathon Petroleum Corporation LP
Vidyashankar Kuppuraj, Marathon Petroleum Corporation
Johnny Serafin, Phillips 66
Nic Tognetti, CHS Inc.
Advanced process control (APC) has been employed in FCC applications for 40 years. Despite the similarities of FCC Technology and APC platforms the success of these applications varies widely. In this session we will discuss common threads that lead to poor outcomes and how to build a successful APC program on a modern FCC.
Speakers:
Adrian Azpilicueta, Nalco Water
Steve Mayo, Eurecat U.S. Incorporated
Montri Vichailak, Marathon Petroleum Corporation
This session will cover the sources, mechanisms, and mitigations of common inorganic poisons of hydroprocessing catalysts. First, we will cover the main types of poisons encountered in hydroprocessing units and their sources. Next the three main poisoning mechanisms will be reviewed along with the severity of poisoning and catalyst mitigations to extend cycle. After that we will consider mitigations upstream of the hydrotreater to extend cycle life. Finally, a refinery case study will be presented demonstrating a process of extending cycle length in a hydrotreater with feedstock poisons.
Facilitators:
Cliff Avery, Ketjen Corpotation
CJ Farley, TPM Solutions
1. Commercial Results of 100% Vegetable Oil Processing in an FCCU
Speaker: Andrea de Rezende Pinho, Petróleo Brasileiro S/A - PETROBRAS
In 2023, Petrobras and the Riograndense Refinery (RPR) successfully processed 100% vegetable oil in a Fluid Catalytic Cracking (FCC) Unit. Petrobras' technology is based on three pillars: i) triglycerides, such as soybean oil used in the commercial test, ii) ReNewFCC line catalyst and iii) unique operating conditions compared to conventional FCCUs. Biogenic products such as renewable aromatic hydrocarbons (BTX - benzene, toluene and xylene), renewable LPG, and renewable propylene were produced during the commercial trial. Commercial yields, quality of the products, operational challenges and technical adaptations for the trial will be presented.
2. U.S. HEFA Co-processing – Past, Present, and Future Projects
Speaker: Eamon Cullinane, Turner, Mason & Company
HEFA co-processing at U.S. oil refineries has historically not seen the same success as standalone RD/SAF refinery conversions. So why has co-processing in the U.S. been limited in the past and why might we see more of it in the future? We will explore historical production levels of co-processing, economics vs standalone RD/SAF facilities, the regulatory landscape and credit incentives (RINs, BTC, CFPC/45Z, CA LCFS, etc.) driving these economics, and future prospects of co-processing in the U.S.
Facilitator:
Oscar Brown, Valero Energy Corporation
1. Case Study: Boosting Hydrocracking Performance with Celestia™ Catalyst to Double Run Length and Enable Cold-Flow Improvement with MIDW
Presenters:
Christy Anderson, Ketjen Corporation
Mitchel Loescher , ExxonMobil Corporation
2. High throughput testing enables tailored, optimized, and confident catalyst selection for CITGO's Unicracker
Presenters:
Carmen Angelini, CITGO Petroleum Corporation
Ioan-Teodor Trotus, hte GmbH
Speakers:
Dan Harbs, Veolia Water Technologies and Solutions
Kevin Harkness, Monroe Energy, LLC
Case studies will be presented highlighting different fouling mechanisms, the impact of fouling on bottoms circuit equipment and MF operation, and methods to mitigate fouling and clean-up the circuit for improved operation.