E-Gas is a two-stage, oxygen-blown, entrained-flow, slurry-feed gasifier for coal and petroleum coke

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Lummus E-Gas
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Kokel, Nicolas
9/18/2026 6:32 AM



E-Gas Process Flow Diagram | Source: ConocoPhillips (June 5, 2008)

E-Gas is a pressurized, oxygen-blown, slurry-fed, two-stage entrained-flow gasification technology originally developed from Dow Chemical's Destec process, later marketed by ConocoPhillips and Phillips 66, then CB&I, and now owned by Lummus Technology following the CB&I/McDermott corporate succession. The best-documented commercial reference remains the Wabash River Coal Gasification Repowering Project in Indiana, a U.S. DOE Clean Coal Technology demonstration that converted high-sulfur coal and later petroleum coke into fuel gas for IGCC power generation.

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