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OP-II-3

OP-II-3

OP-II-3

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<strong>OP</strong>-<strong>II</strong>-16(4) The gas recirculation rate has to be high for providing the greater gasconcentration on the catalyst surface (for speeding up the reaction rate or slowingdown the catalyst aging).(5) The gas recirculation rate has to be high for decreasing the content of bygasesin the loop (e.g. hydrogen sulfide in hydrotreaters).(6) High pressure in the reactor unconditionally encourages the slower catalystdeactivation.Some approaches towards the new process embodiments are also presented.129

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