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Table 2

Composition of Liquid Products from Experiments at High Space Velocities

Catalyst Iron (synthetic-ammonia) Cobalt
Type of Process Fixed Bed Fluid
Bed
Fixed Bed
Pressure, atmos.gauge 10 20 20 20 20 10 10
Temperature, °C 260-285 281 300 318 305 220 220
Space velocity, vol. residual gas/vol. synthesis gas 400 400 530 1050 1040 510 516
Recycle ratio, vol. residual gas/vol. synthesis gas - 2.1:1 2.2:1 1.35:1 6.3:1 - 2.16:1
Boiling range of product, percent. by weight
Up tp 200ºC
63.0 64.1 72.4 76.5 71.5 67.4 64.2
200º-300ºC 17.3 16.3 15.6 13.5 18.5 23.0 23.3
Residue above 300°C 19.7 19.6 12.0 10.0 10.0 9.6 12.5
Olefin content of fraction below 200°C, percent by weight 68.0 73.8 71.7 65.0 75.0 17.8 25.5

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