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Shell - Global Technology Forum

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MARATHON HYDROCRACKER – DIVERSE FEEDS<br />

Marathon refinery:<br />

Diverse crudes<br />

Delayed coker, FCCU and ROSE<br />

First two-year cycle in progress<br />

Expansion study<br />

Diverse feed challenges<br />

Varying properties<br />

Property HVGO FCC LCO Coker HGO ROSE DAO<br />

TBP FBP, °C 611 381 556 740<br />

Specific gravity at 15°C 0.935 0.956 0.973 0.965<br />

Ni + V, ppmwt 2 – 1 19<br />

C 7 insolubles, %wt

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