| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 02.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
(a) Contacting first olefin-contg feedstock with fixed bed of solid acid catalyst under olefin polymn conditions by passing first feedstock into the fixed bed & withdrawing prodt stream from fixed bed, wherein the mole ratio of olefins & aromatic compds in first feedstock is > 12 & whereby the acid catalyst undergoes deactivation with the passage of time (b) Substituting a second olefin-contg feedstock for the first feedstock after the acid catalyst has become partially deactivated, wherein the second feedstock contains aromatic compds & said mole ratio is 1-10 (c) Contacting second feedstock with fixed bed of solid acid catalyst under olefin polymn conditions by passing second feedstock into the fixed bed & withdrawing prodt stream from fixed bed & (d) Passing second feedstock into the fixed bed & withdrawing prodt stream from fixed bed for a period of time which is effective to produce a regenerated acid catalyst which has an increased activity rel. to that at the beginning of (b) |
| PATENT PHOTOCOPY | Available on request |
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