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CATALYTIC REFORMING Process,Catalysts and Reactors

CATALYTIC REFORMING Process,Catalysts and Reactors

CATALYTIC REFORMING Process,Catalysts and Reactors

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Catalyst<br />

The main characteristics of a catalyst other than its physical <strong>and</strong><br />

mechanical properties are :<br />

• The activity<br />

o catalyst ability to increase the rate of desired reactions<br />

o Is measured in terms of temperature<br />

• The selectivity<br />

o Catalyst ability to favor desirable reactions<br />

o Practically measured by the C5+ Reformate <strong>and</strong> Hydrogen<br />

yields<br />

• The stability<br />

o Change of catalyst performance ( activity, selectivity )with<br />

time<br />

o Caused chiefly by coke deposit <strong>and</strong> by traces of metals in feed<br />

o Measured by the amount of feed treated per unit weight of<br />

catalyst. C5+ wt reformate yield is also an indirect measure of<br />

the stability.<br />

Catalytic Reforming<br />

59

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