Cocurrent simulated moving bed hydrocarbon alkylation process

Details Cocurrent simulated moving bed hydrocarbon alkylation process Cocurrent simulated moving bed hydrocarbon alkylation process

1994-07-13

1996-06-04

Achutamurthy, Ponnathapura

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585323, 585331, 585709, 585714, 585716, C07C 264, C07C 256

Patent

active

055235034

ABSTRACT:
Hydrocarbons such as isobutane and benzenes are alkylated using a solid catalyst in a process which simulates the cocurrent movement of the catalyst bed versus the reactants. This has been found to greatly reduce the rate of catalyst deactivation compared to simulated countercurrent flow. The process may be performed using five or more beds of catalyst, with two undergoing regeneration at any one time. One bed is subjected to a short term liquid-phase regeneration while the other is subjected to long term vapor-phase regeneration. The catalyst preferably contains a metal hydrogenation function effective to selectively hydrogenate C.sub.6 -plus materials trapped on the used catalyst.

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