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Velocys Fischer-Tropsch Technology - Oxford Catalysts Group

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Alternative operating conditions<br />

Syngas composition varies for GTL, BTL, CTL applications<br />

- 2 stage once-through and single stage with recycle<br />

Catalyst / Reactor robustness critical<br />

Syngas Comp<br />

Performance<br />

Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 Case 7 Case 8<br />

H 2/CO 2.1 2.0 1.6 1.6 1.5 1.8 1.75 1.50<br />

Dilution 8% 17% 24% 50% 40% 60% 75% 85%<br />

CO Conversion 70.8% 70.0% 70.7% 65.8% 62.3% 70.0% 64.6% 54.8%<br />

CH 4 Selectivity 9.1% 7.2% 4.9% 6.2% 4.8% 10.6% 8.8% 9.7%<br />

C 5 + Selectivity 84.4% 87.0% 90.4% 88.0% 90.6% 82.2% 84.0% 80.7%<br />

10

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