US3910771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for contacting HF alkylate containing alkyl fluoride with additional HF catalyst to convert alkyl fluoride to additional alkylate
Assignee: Phillips Petroleum Co
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Filing: 1973-05-30
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Granted: 1975-10-07
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Expires: 1993-05-30
Abstract
Abstract Alkyl fluoride in isoparaffin-olefin alkylate produced in presence of HF catalyst, e.g., an alkylate produced by alkylating isoparaffin with ethylene and isobutylene or propylene with an HF catalyst, is caused to alkylate an isoparaffin in the presence of additional HF acid catalyst by passing the alkylate upwardly through nozzles into a riser-reactor and at the nozzles admixing with the alkylate the additional HF acid of a desirable kind in a desirable quantity to cause conversion of the alkyl fluoride to additional alkylate, the apparatus in which the invention is carried out essentially being composed of a vessel having a lower, mid and upper sections, a riser-reactor conduit being juxtaposed over hydrocarbon spray nozzles in a partition between the lower and mid sections, but not extending down to said partition, a second conduit surrounding the riser-reactor conduit extending from said partition to an apertured partition between the mid and upper sections, said second conduit at its upper end being in sealing engagement with said apertured partition and in register with the aperture therein, said riser conduit extending to a level above said apertured partition, and downcomer means for flowing acid from said upper section to said lower section, downcomer means for flowing hydrocarbon from said upper section, in one embodiment, into a hydrocarbon surge section surrounding said second conduit and between said partitions, and means for feeding alkylate to said lower section and forcefully upwardly through said nozzles. In another embodiment an angular system comprises right angled conduits, an acid flow diverter over a hydrocarbon passage to divert down flowing acid from an opening to permit hydrocarbon to flow essentially horizontally through said opening is described.
Inventors
- 👤 Charles C Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:37
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/26; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00105; B01J2219/0011; B01J2219/00121; B01J2219/00182; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
319 words
AN APPARATUS FOR TREATING AN ALKALITE PRODUCED FROM AN ISOPARAFIN-OLEFIN ALKYLATION IN PRESENCE OF HYDROGEN FLUORIDE AS AN CATALYST TO REMOVE ALKYL FLUORIDE THEREFROM AND TO PRODUCE ADDITIONAL ALKYLATE WHICH COMPRISES: A VESSEL DEFINED BY A TOP, A BOTTOM, AND SIDEWALLS,SAID VESSEL BEING DIVIDED INTO THREE SECTIONS, THE LOWER SECTION HAVING ITS UPPER END DETERMINED BY A FIRST PARTITION, THE MIDSECTION AND THE UPPER SECTION BEING DIVIDED BY AN APERTURED PARTITION A FIRST CONDUIT EXTENDING UPWARDLY FROM THE TOP OF THE FIRST PARTITION TO THE BOTTOM OF THE APERTURED PARTITION, BEING IN SUBSTANTIAL REGISTER WITH THE APERTURE, AND BEING IN SEALING ENGAGEMENT WITH BOTH PARTITIONS, A RISE-REACTOR CONDUIT LOCATED WITHIN SAID FIRST CONDUIT AND EXTENDING UPWARDLY FROM A LEVEL JUST ABOVE SAID FIRST PARTITION AND EXTENDING INTO THE UPPER SECTION OF THE VESSEL TO A LEVEL JUST ABOVE THE TOP OF THE APERTURE PARTITION, AN INLET FOR PASSING ALKALATE AND ACID CATALYST TO BE TREATED INTO THE LOWER SECTION OF THE VESSEL, NOZZLE MEANS DISPOSED IN THE FIRST PARTITION OVER A SUBSTANTIAL AREA, BUT NOT ALL OF THE AREA OF THE PARTITION, SAID NOZZLE MEANS BEING ENCOMPASSED BY THE FIRST CONDUIT AND POSITIONED SUCH THAT THE FLUIDS FROM THE LOWER SECTION PASSING THROUGH THE NOZZLES ARE DIRECTED INTO THE RISER-REACTOR CONDUIT, AN ACID DOWNCOMER MEANS PROVIDING COMMUNICATION BETWEEN THE BOTTOM OF THE UPPER SECTION OF THE VESSEL AND LOWER SECTION OF THE VESSEL, SAID DOWNCOMER MEANS HAVING ITS UPPERMOST PORTION AT A LEVEL ABOVE THE APERTURED PARTITION, BUT BELOW THE UPPER END OF THE RISER-REACTOR CONDUIT AND EXTENDING INTO THE LOWER SECTION OF THE VESSEL A SUFFICIENT DISTANCE BELOW THE NOZZLE MEANS TO INSURE THAT THE HEAD OF LIQUID IN THE DOWNCOMER IS GREAT ENOUGH TO PERMIT THE LIQUID TO FLOW INTO THE LOWER SECTION WHEN IT IS PRESSURIZED BY THE ALKALINE ADMITTED THROUGH THE INLET, AND A MEANS FOR REMOVING HYDROCARBON FROM THE UPPER SECTION OF THE VESSEL
Claim 2
Independent Claim
319 words
AN APPARATUS FOR TREATING AN ALKALITE PRODUCED FROM AN ISOPARAFIN-OLEFIN ALKYLATION IN PRESENCE OF HYDROGEN FLUORIDE AS AN CATALYST TO REMOVE ALKYL FLUORIDE THEREFROM AND TO PRODUCE ADDITIONAL ALKYLATE WHICH COMPRISES: A VESSEL DEFINED BY A TOP, A BOTTOM, AND SIDEWALLS,SAID VESSEL BEING DIVIDED INTO THREE SECTIONS, THE LOWER SECTION HAVING ITS UPPER END DETERMINED BY A FIRST PARTITION, THE MIDSECTION AND THE UPPER SECTION BEING DIVIDED BY AN APERTURED PARTITION A FIRST CONDUIT EXTENDING UPWARDLY FROM THE TOP OF THE FIRST PARTITION TO THE BOTTOM OF THE APERTURED PARTITION, BEING IN SUBSTANTIAL REGISTER WITH THE APERTURE, AND BEING IN SEALING ENGAGEMENT WITH BOTH PARTITIONS, A RISE-REACTOR CONDUIT LOCATED WITHIN SAID FIRST CONDUIT AND EXTENDING UPWARDLY FROM A LEVEL JUST ABOVE SAID FIRST PARTITION AND EXTENDING INTO THE UPPER SECTION OF THE VESSEL TO A LEVEL JUST ABOVE THE TOP OF THE APERTURE PARTITION, AN INLET FOR PASSING ALKALATE AND ACID CATALYST TO BE TREATED INTO THE LOWER SECTION OF THE VESSEL, NOZZLE MEANS DISPOSED IN THE FIRST PARTITION OVER A SUBSTANTIAL AREA, BUT NOT ALL OF THE AREA OF THE PARTITION, SAID NOZZLE MEANS BEING ENCOMPASSED BY THE FIRST CONDUIT AND POSITIONED SUCH THAT THE FLUIDS FROM THE LOWER SECTION PASSING THROUGH THE NOZZLES ARE DIRECTED INTO THE RISER-REACTOR CONDUIT, AN ACID DOWNCOMER MEANS PROVIDING COMMUNICATION BETWEEN THE BOTTOM OF THE UPPER SECTION OF THE VESSEL AND LOWER SECTION OF THE VESSEL, SAID DOWNCOMER MEANS HAVING ITS UPPERMOST PORTION AT A LEVEL ABOVE THE APERTURED PARTITION, BUT BELOW THE UPPER END OF THE RISER-REACTOR CONDUIT AND EXTENDING INTO THE LOWER SECTION OF THE VESSEL A SUFFICIENT DISTANCE BELOW THE NOZZLE MEANS TO INSURE THAT THE HEAD OF LIQUID IN THE DOWNCOMER IS GREAT ENOUGH TO PERMIT THE LIQUID TO FLOW INTO THE LOWER SECTION WHEN IT IS PRESSURIZED BY THE ALKALINE ADMITTED THROUGH THE INLET, AND A MEANS FOR REMOVING HYDROCARBON FROM THE UPPER SECTION OF THE VESSEL
Claim 3
Dependent Claim
86 words
An apparatus according to claim 1 wherein the means for removing hydrocarbon comprises a surge section located in the midsection of the vessel between said first conduit and the inside of said vessel sidewalls and in said upper section of said vessel a hydrocarbon downcomer in open communication with said hydrocarbon surge section, the uppermost portion of said hydrocarbon downcomer being located above said acid downcomer so that hydrocarbon phase separating above the acid phase in said upper portion can flow into said hydrocarbon surge section.
Claim 4
Dependent Claim
257 words
The apparatus according to claim 2 wherein the hydrocarbon downcomer which provides communication between the upper section and the hydrocarbon surge section has at its upper end a funnel-shaped inlet and at the lower end an inverted V-shaped cut in the wall of the hydrocarbon downcomer that is nearest the center of said vessel, said cut having joined thereto a gable-shaped means comprising two plates attached to the inside of said downcomer sucH that each plate forms an acute angle with said hydrocarbon downcomer wall, said plates extending only partway across said hydrocarbon downcomer so that there is an opening between the plates and the wall of the hydrocarbon downcomer that is farthest from the center of the vessel so that hydrocarbon passing down the hydrocarbon downcomer can pass through said opening and under said gable-like means while acid flowing down the inside of the wall of the downcomer that is nearest the center of the vessel will be diverted from flowing under the gable-like means, said hydrocarbon downcomer extending into an open topped chamber in the midsection of the vessel, said chamber being defined by a partition which joins the inside wall of the vessel and extends upward from the partition dividing the lower section and midsection of the vessel to a level above the lowermost portion of the hydrocarbon downcomer, such that acid which has flowed down the gable-like means is prevented from passing into the hydrocarbon surge section while hydrocarbon which has flowed under the gablelike means can flow into the hydrocarbon surge section.
Claim 5
Dependent Claim
29 words
An apparatus according to claim 3 wherein the lower portion of the chamber contains an eductor which will serve to discharge the acid from said chamber and said vessel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |