Dual regeneration zone solid catalyst alkylation process

Details Dual regeneration zone solid catalyst alkylation process Dual regeneration zone solid catalyst alkylation process

1996-02-05

1997-10-07

Wood, Elizabeth D.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585722, C07C 268, C07C 258

Patent

active

056750480

ABSTRACT:
Hydrocarbons are alkylated in a fluidized riser-reactor using a solid catalyst which is regenerated within the process by contact with hydrogen. The alkylation and regeneration steps are separated to prevent the admixture of hydrogen and any olefins present in the process. Two separate modes of regeneration are performed simultaneously on different portions of the catalyst: a partial liquid-phase hydrogenative regeneration at reaction conditions and a high temperature (complete) liquid-phase hydrogenative regeneration.

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patent: 4973780 (1990-11-01), Johnson et al.
patent: 5157196 (1992-10-01), Crossland et al.
patent: 5489732 (1996-02-01), Zhang et al.

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