March 2016

Environment and Safety

Meet EPA Tier 3 clean fuel regulations through improved blending processes

This article will examine the impact of Tier 3 regulations on gasoline blending at refineries and terminals, and illustrate options that can contribute to compliance while keeping costs under control.

Truesdale, P., Carugo, M., Emerson Process Management

Gasoline refiners and distributors face multiple challenges that are becoming more difficult each year. Arguably, the biggest of these comes from the US Environmental Protection Agency (EPA), where Tier 3 regulations on gasoline sulfur content will make control of the blending process more critical and more challenging. Other countries are adopting similar, or even tighter, regulations. The global economic environmental demands have increased the need to control costs, and poorly executed blending can add considerably to those. Errors can require batches to be touched up or completely re-blended, which can delay shipments and require additional tankage to hold excess work-in-progress compon

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