Patent ID: 6616900
Filing Date: 2003-09-09
Classification: C10G

Abstract:
An apparatus for the fluidized catalytic cracking of hydrocarbons, said apparatus comprising:a continuous transport contacting conduit for passing a mixture of gas and catalyst therethrough having a first section defining a catalyst inlet in communication with a source of regenerated catalyst proximate its upstream end, means for injecting a feedstream into said first section, a second section in the path of direct gas and catalyst flow from said first section defining a short contact product outlet for recovering a short contact product stream, and a third section in the path of direct gas and catalyst flow defining a secondary product outlet at its downstream end; a secondary product separator in communication with said secondary product outlet for separating spent catalyst from a secondary product; a stripper for stripping hydrocarbons from said spent catalyst to produce stripped catalyst; and a regenerator for removing coke from said stripped catalyst that provides said source of regenerated catalyst.