Article: CITGO to implement environmental-improvement projects.(CITGO Petroleum Corp.)(Brief Article)

Houston-based CITGO Petroleum Corporation is implementing several environmental-improvement projects at its three fuels refineries and two asphalt refineries over the next four years that will reduce emissions of S[O.sub.2] (sulfur dioxides) and NOx (nitrous oxides) by an estimated 23,000 and 7,000 tons-per-year, respectively. The capital cost of the control equipment could range up to $320 million.

These projects are ...

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