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One exemplary embodiment can be an alkylation system including a catalyst regeneration zone. Generally, the catalyst regeneration zone includes first and second columns. The first column can provide an overhead stream having a catalyst and a first hydrocarbon, a side-stream having the catalyst and w

One exemplary embodiment can be an alkylation system including a catalyst regeneration zone. Generally, the catalyst regeneration zone includes first and second columns. The first column can provide an overhead stream having a catalyst and a first hydrocarbon, a side-stream having the catalyst and water, and a bottom stream having a second hydrocarbon. Typically, the second column receives the side-stream as a feed.

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1. An alkylation process including a regeneration comprising: providing an overhead stream from a first column in a catalyst regeneration zone comprising a catalyst and a first hydrocarbon wherein said first overhead stream is substantially free of water; a side-stream from said first column compris

1. An alkylation process including a regeneration comprising: providing an overhead stream from a first column in a catalyst regeneration zone comprising a catalyst and a first hydrocarbon wherein said first overhead stream is substantially free of water; a side-stream from said first column comprising the catalyst and water; anda bottom stream from said first column comprising a second hydrocarbon; andreceiving the side-stream as a feed in a second column in said catalyst regeneration zone. 2. The alkylation process according to claim 1, wherein the catalyst comprises a hydrogen fluoride. 3. The alkylation process according to claim 1, wherein the side-stream further comprises a light ASO. 4. The alkylation process according to claim 1, wherein the first hydrocarbon comprises an isoparaffin. 5. The alkylation process according to claim 4, wherein the isoparaffin comprises an isobutane. 6. The alkylation process according to claim 1, wherein the second hydrocarbon comprises an acid soluble oil. 7. The alkylation process according to claim 1, wherein the bottom stream comprises a volatility reducing agent. 8. The alkylation process according to claim 7, wherein the volatility reducing agent comprises at least one of a sulfone, an ammonia, a methylamine, an ethylamine, a propylamine, a butylamine, a pentylamine, a pyridine, an alkylpyridine, a picoline, a melamine, and a hexamethylene-tetramine. 9. The alkylation process according to claim 7, wherein the volatility reducing agent comprises a 1,1-dioxide tetrahydrothiofuran. 10. The alkylation process according to claim 1, wherein the second column contains a packing. 11. The alkylation process according to claim 10, wherein the packing comprises at least one of a thermoplastic and at least one metal. 12. The alkylation process according to claim 11, wherein the packing comprises a thermoplastic, in turn comprising a poly(chlorotrifluoroethylene). 13. The alkylation process according to claim 11, wherein the packing comprises at least one metal, in turn comprising a nickel alloy. 14. The alkylation process according to claim 1, wherein the second column provides an overhead stream comprising at least one of the catalyst and the first hydrocarbon, and a bottom stream comprising water and the second hydrocarbon. 15. The alkylation process according to claim 1, wherein the heat duty for the second column is supplied by a superheated hydrocarbon stream. 16. A catalyst regeneration zone of an alkylation unit, comprising: A) a first column; andB) a second column containing a packing communicating with the first column, wherein the heat duty for the second column is supplied by a superheated hydrocarbon stream comprising isobutane. 17. A process for regenerating an alkylation catalyst, comprising: providing a mixture comprising the alkylation catalyst and water to a packed column wherein a reflux to a second column comprises a paraffin. 18. The process according to claim 17, wherein the alkylation catalyst comprises a hydrogen fluoride. 19. The process according to claim 17, further comprising providing a superheated hydrocarbon stream as heat duty to the packed column. 20. The process according to claim 1, wherein the side-stream comprises a liquid withdrawn from the first column.