Patent ID: 6165353
Filing Date: 2000-12-26
Classification: C10G

Abstract:
A method of injecting a substantially linear array of feed jets comprising at least partially liquid phase hydrocarbon compounds and a gas phase fluid into a stream of fluidized particles, said method comprising:passing a dispersion of catalyst particles through a contacting vessel in a predetermined flow pattern;dividing a stream of hydrocarbon compounds into a plurality of uniform hydrocarbon substreams in a first chamber by passing the stream of hydrocarbon compounds into first inlets of different conduits in a plurality of first conduits extending through a second chamber;dividing a stream of gas phase material into a plurality of uniform gas substreams in the second chamber by passing each of the gas substreams into inlets second of different conduits in a plurality of second conduits, said second inlets being enclosed within said second chamber and said second conduits extending through a shroud adjacent said second chamber;passing the hydrocarbon substreams along linear paths through conduits of the enclosed first or second plurality of conduits to produce a plurality of linearly directed flow streams;passing the gas substreams through flow restrictors located inside said second chamber to provide a plurality of restricted flow streams;combining each one of the gas substreams with one of the hydrocarbon substreams at a location downstream of the flow restrictors and the linear flow path in the conduits of the first plurality of conduits to provide a plurality of combined streams directed along a linear flow path;maintaining the plurality of combined streams as discrete streams;injecting the discrete streams through outlet ends of the plurality of second conduits exiting an end wall of the shroud into different portions of the predetermined catalyst flow pattern.