December 2010

Special Report: Plant Design and Engineering

Consider new coatings for maintenance turnaround

Epoxy system provides speed of application as well as environmental benefits for large storage tanks

Karner, C., SemCrude; Toews, B., Sherwin-Williams

When to coat was the dilemma SemCrude faced as the company was adding new oil storage tanks to its Cushing, Oklahoma, tank farm (Fig. 1). Futures oil prices were moving forward by as much as $1.60/bbl a month. Customers needed tanks to store oil to take advantage of the price increases. Bringing new tanks online as fast as possible was key to both SemCrude and customer profits.     Fig. 1. Aerial view of SemCrude’s Cushing,  Oklahoma, tank farm operation.Pricing condition for storage. SemCrude builds and owns tanks that store oil sold on the New York Mercantile Exchange. Monthly futures price fluctuations affect the value of oil stored in the tanks. When pri

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