Oil & Gas


Holly Frontier Sulfur Tank Replacement

Client: Holly Frontier Refinery

Location: Cheyenne, Wyoming

Scope: AZCO provided both subcontract management and installation services for the Sulfur Tank Replacement Project including: demolition of the concrete and hydro vac excavation around an existing sulfur storage tank (approximately 50’ x 20’ x 5’), managed the hydro cutting contractor to hydro cut the existing ½” thick steel tank around the perimeter for demolition, installed new tank sections and seal welded to existing lower half of steel tank.

AZCO also managed the backfill and concrete foundation and concrete lid installation over the top of the tank, installed approximately 400 linear feet of jacketed piping and 1,000 linear feet of steam and condensate tubing, and pumps. AZCO managed the electrical hook-up of pumps, sensors, heat tracing, and the insulation of the new piping.