| 摘要 |
<p>The present invention relates to a continuous alkylation process wherein an alkylatable compound is reacted with an alkylation agent in the presence of a solid acid alkylation catalyst to form an alkylate and wherein the catalyst is regenerated, said process being performed in an apparatus comprising a series of at least two catalyst-containing reactors (4A,5A) in a zone A and a series of at least two catalyst-containing reactors (4B,5B) in a zone B, in which process (a) the zone A reactors and the zone B reactors cycle back and forth per zone between the alkylation mode and the mild regeneration mode, (b) the alkylation mode comprises introducing an alkylation agent into a first reactor (4A,4B) of the zone through which the alkylatable compound passes, reacting a portion of the alkylatable compound with at least a portion of the alkylation agent to produce an alkylate-containing product stream, and performing this operation at least once more in a downstream reactor (5A,5B) in the same zone employing, instead of said alkylate compound, a stream comprising said alkylate-containing product stream which may or may not have been subjected to a prior intermittent separation during which a portion of the alkylate has been removed, to produce an alkylation mode alkylate-containing effluent, (c) the mild regeneration mode comprises contacting the solid acid alkylation catalyst with hydrogen in each of the at least two reactors of the zone, (d) alkylate is recovered.</p> |
