Patent ID: 7704070
Filing Date: 2010-04-27
Classification: B01J,F23C,F23L,F28D,Y02E

Abstract:
1. A process system, comprising: a first heat transfer system for combusting of a fuel and for heating of a process fluid, wherein said heat transfer system comprises: A fuel tube having a length and a tube wall that define a fuel introduction zone wherein along said length and within said fuel introduction zone is included a fuel preheating zone and a combustion zone, wherein said fuel preheating zone includes a fuel inlet for introducing said fuel into said fuel preheating zone and a fuel outlet for introducing a preheated fuel from said fuel preheating zone into said combustion zone, and wherein along said combustion zone and through said tube wall is a plurality of apertures; an oxidant tube that is external to and surrounding said fuel tube so as to thereby define an oxidant introduction zone along said length of said fuel tube, wherein said oxidant introduction zone includes an oxidant preheating zone and a fuel combustion zone, wherein said oxidant preheating zone includes an oxidant inlet for introducing an oxidant into said oxidant preheating zone and an oxidant outlet for introducing a preheated oxidant from said oxidant preheating zone into said fuel combustion zone, and wherein said plurality of apertures provide for fluid communication between said combustion zone and said fuel combustion zone; and a process tube that is external to and surrounding said oxidant tube so as to thereby define a process fluid introduction zone along said oxidant tube, wherein said process fluid introduction zone includes a process fluid heating zone and an oxidant/fuel heating zone, wherein said process fluid heating zone is in heat exchange relationship with said fuel combustion zone and includes a process fluid inlet for introducing said process fluid into said process fluid heating zone and a process fluid outlet for introducing a heated process fluid from said process fluid heating zone into said oxidant/fuel heating zone, and wherein said oxidant/fuel heating zone is in heat exchange relationship with both of said oxidant preheating zone and said fuel preheating zone and includes a discharge outlet for discharging from said oxidant/fuel heating zone said heated process fluid.