Problem A large Midwest refinery suffered a severe fire in the single crude unit that would render the crude unit out of service for nine months. The refinery called in Polaris Engineering to figure out how to run the plant without the crude unit. Solution Polaris Engineering evaluated the plant and provided a design to utilize existing equipment within the plant in completely new services to process crude. The design was completed in less than one week and passed through HAZOP and Corporate review without any modifications. The revamp cost $10MM and allowed the plant to operate at the designed […]
Problem A large Gulf Coast refinery wanted to expand Crude Unit, Vacuum Unit, Naphtha Hydrotreating, Reforming, and Kerosene Hydrotreating capacity Solution Polaris Engineering provided test runs, operational recommendations, and complete designs to deliver desired unit capacities. The work was field-intensive, not simply computer designs performed from the Home Office. More than 50% of the claimed benefits from the work were from implemented operational changes, as opposed to benefits from increased throughput that were gained.
Problem With crude feed slates becoming heavier over time, the client’s capabilities of recovering diesel and atmospheric gas oil became limited with the existing Atmospheric Crude Distillation Towers. As a result they were not able to recover a small portion of diesel and large portion of Atmospheric Gas Oil from the Atmospheric Tower Bottoms (ATB). Thus, these products were downgraded to No. 6 Oil. Solution Polaris proposed the design of a Vacuum Distillation Tower that would not only recover the Diesel Cut and Atmospheric Gas Oil, but also increase Gas Oil yields further to meet Low Sulfur Vacuum Gas Oil […]