Method of feeding reactants in a process for the production of alkylate gasoline

Abstract

This application provides a process for the production of alkylate blending components, comprising introducing a hydrocarbon feed stream comprising an olefin to an orifice of a nozzle, at a close distance from the orifice; and wherein the nozzle dispenses a mixture of one or more recirculated streams and the hydrocarbon feed stream through a throat of the nozzle to make alkylate gasoline blending components. This application also provides a process unit for the production of alkylate gasoline, comprising: a) a nozzle having an orifice that dispenses one or more recirculated streams comprising ionic liquid catalyst into a chamber in the nozzle, b) a conduit for introducing a hydrocarbon feed stream comprising an olefin to the orifice at a close distance from the orifice; and c) a throat connecting the chamber in the nozzle to an alkylation zone.

1 . A process for the production of alkylate gasoline blending components, comprising introducing a hydrocarbon feed stream comprising an olefin to an orifice of a nozzle, at a distance from the orifice that is within 25 times a diameter of the orifice; and wherein the nozzle dispenses a mixture of one or more recirculated streams and the hydrocarbon feed stream through a throat of the nozzle to make alkylate gasoline blending components. 
     
     
         2 . The process of  claim 1 , wherein the hydrocarbon feed stream additionally comprises an isoparaffin. 
     
     
         3 . The process of  claim 1 , wherein the one or more recirculated streams comprise an external recirculated stream and an internal recirculated stream. 
     
     
         4 . The process of  claim 3 , wherein the hydrocarbon feed stream is introduced to a chamber of the nozzle housing a center piece from which the external recirculated stream flows towards the orifice. 
     
     
         5 . The process of  claim 1 , wherein the distance from the orifice is within 10 times the diameter of the orifice. 
     
     
         6 . The process of  claim 1 , wherein the hydrocarbon feed stream is introduced at an angle from 0 degrees to 90 degrees from a direction of a flow of an external recirculated stream towards the orifice. 
     
     
         7 . The process of  claim 6 , wherein the angle is from 0 to 10 degrees. 
     
     
         8 . The process of  claim 6 , wherein the angle is from 35 degrees to 75 degrees. 
     
     
         9 . The process of  claim 6 , wherein the external recirculated stream comprises regenerated catalyst. 
     
     
         10 . The process of  claim 1 , wherein the hydrocarbon feed stream is introduced through a dip tube into an external recirculated stream in a center piece of the nozzle prior to dispensing the external recirculated stream and the hydrocarbon feed stream through the orifice. 
     
     
         11 . The process of  claim 1 , wherein the introducing is done at a single location. 
     
     
         12 . The process of  claim 1 , wherein the introducing is done at multiple locations. 
     
     
         13 . The process of  claim 1 , wherein the hydrocarbon feed stream is introduced at a location selected from the group of before the orifice of the nozzle, in a chamber in the nozzle between the orifice and the throat, in the throat of the nozzle, and combinations thereof. 
     
     
         14 . The process of  claim 1 , wherein the one or more recirculated reactant streams come from an alkylation zone comprising an ionic liquid catalyst. 
     
     
         15 . The process of  claim 1 , wherein the mixture is dispensed into an alkylation zone comprising an ionic liquid catalyst. 
     
     
         16 . The process of  claim 15 , wherein a residence time of reactants in the alkylation zone is less than 3 seconds. 
     
     
         17 . The process of  claim 1 , wherein a linear velocity of the hydrocarbon feed stream when it is introduced is high enough to reduce a production of C11+ hydrocarbons. 
     
     
         18 . The process of  claim 15 , wherein an alkylate gasoline blending component having a RON greater than 90 is produced in the alkylation zone. 
     
     
         19 . The process of  claim 15 , wherein an alkylate gasoline blending component comprising less than 6 wt % C11+ is produced in the alkylation zone. 
     
     
         20 . A process unit for the production of alkylate gasoline, comprising:
 a) a nozzle having an orifice that dispenses one or more recirculated streams comprising an ionic liquid catalyst into a chamber in the nozzle,   b) a conduit for introducing a hydrocarbon feed stream comprising an olefin to the orifice at a distance from the orifice that is within 25 times a diameter of the orifice; and   c) a throat connecting the chamber in the nozzle to an alkylation zone where alkylate gasoline blending components are produced.   
     
     
         21 . The process unit of  claim 20 , wherein the hydrocarbon feed stream additionally comprises an isoparaffin. 
     
     
         22 . The process unit of  claim 20 , wherein an alkylate gasoline blending component comprising less than 6 wt % C11+ is produced in the alkylation zone. 
     
     
         23 . The process unit of  claim 20 , wherein the distance from the orifice is within 10 times a diameter of the orifice. 
     
     
         24 . The process unit of  claim 20 , wherein the one or more recirculated streams comprise an external recirculated stream. 
     
     
         25 . The process unit of  claim 20 , wherein a flow of the hydrocarbon feed stream through the conduit is at an angle from 0 degrees to 90 degrees from a direction of flow of the one or more recirculated streams towards the orifice. 
     
     
         26 . The process unit of  claim 20 , additionally comprising an inlet that feeds an internal recirculated stream from the alkylation zone to the chamber of the nozzle.