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Husky Energy, NOx Reduction Project, Lima, OH Husky Energy, NOx Reduction Project, Lima, OH Husky Energy, NOx Reduction Project, Lima, OH Husky Energy, NOx Reduction Project, Lima, OH

Husky Energy, NOx Reduction Project, Lima, OH


The Husky Energy NOx Reduction project was commissioned to execute those modifications necessary to achieve emission reductions. The modifications included design and installation of Hydrodesulfurization (HDS) Furnace Fuel Management System, Ultraformer Charge Furnace Stack Modifications, and Isocracker Furnace Group Stack Modifications. Middough provided design services analyze the furnace structure, develop design and fabrication drawings for the twin stacks, crossover section and transition tee piece immediately downstream of the existing convection section stacks, providing a connection point for the future SCR ductwork. Middough also provided fabrication shop inspection services for the new stacks and steel structures and field support during construction. As well as, providing engineering services to analyze the profile of the second stage charge furnace and provide design services for the new, redesigned transition piece. Middough is currently designing modifications for stack and flue gas ducts in the Crude Unit, Tetra Unit and Isomerization Unit to accept NOx CEMS and RATA nozzles.

Residual Hydrocarbon Tank 218 Project, BP-Husky Refining, LLC, Toledo Refinery, Toledo, OH

Residual Hydrocarbon Tank 218 Project, BP-Husky Refining, LLC, Toledo Refinery, Toledo, OH


The Residual Hydrocarbon Tank 218 Project involved the design, construction and startup of a 150 M bbl insulated tank for Vacuum Tower Bottoms (VTB) or Decanted Oil (DCO) service. In addition, the project installed an external 600# steam heat exchanger for VTB heating, an internal 150# steam coil for DCO heating, a 50# condensate drum, a DCO transfer pump; and, associated civil, structural, piping, electrical and instrumentation infrastructure.

Middough provided services from feasibility through detailed design and construction support. P&ID’s were developed and reviewed with the client. Process hazard analysis was conducted complying with Process Safety Management. Detailed cost estimating was performed to support the project funding process. 3D model reviews were held with the client at 30, 60 and 90 percent during detailed design that allowed for easy translation of design intent with the client. Laser scanning was performed to obtain locations of piping tie-in locations. Issued construction bid packages supported an accelerated construction schedule. This project was recognized by IPA within the client organization.
Packaged Boiler Project, Husky Energy, Lima Refinery, Lima, OH Packaged Boiler Project, Husky Energy, Lima Refinery, Lima, OH

Packaged Boiler Project, Husky Energy, Lima Refinery, Lima, OH


Husky Energy’s Lima Refining Division faced an environmental consent decree to reduce the plant wide NOx emissions by de-commissioning an existing boiler and replacing the capacity with a new boiler with low NOx burner and Flue Gas Recirculation (FGR.)
Although a typical time frame for a project of this type would be 15-18 months from conceptual engineering (FEL-1) through commissioning/steam-to-plant, Husky required this boiler to be on-line in seven months. Middough assembled an experienced team to partner with Husky Energy from conceptual engineering and estimating through detailed engineering, field administration and commissioning. This team designed, installed and commissioned the new boiler within the seven month timeline and produced steam to the plant two weeks ahead of schedule.