Semi-regenerative powerforming

A schematic flow plan of a typical semi-regenerative Powerformer is shown... 

The common practice in semi-regenerative Powerformers is to desulfurize the reactor feed. This reduces the deactivation rate of the Powerforming catalyst,... 

Powerforming is a version of the platinum reforming process. Basically there are two types of unit semi-regenerative and cyclic. The choice of unit and the exact process conditions used will depend to a large extent on the particular application. However, certain generalizations regarding each of the two types can be made. 

A low pressure semi-regenerative unit provides yields that approach those obtained in cyclic Powerforming but with savings in investment. For smaller units and moderate severities, the low pressure semi-regenerative unit would likely be the most attractive alternative if selectivity improvement credits are sufficiently high. 

Until the early 1970 s, two methods were widely used, namely semi-regenerative and cyclical regenerative processes. The UOP semi-regenerative process (UOP platform process) is particularly common the Exxon Powerforming process and the Atlantic Richfield/Engelhard Magnafomang process operate in a similar way. 

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