公开(公告)号：CA2545896A1

公开(公告)日：2006-12-22

申请号：CA2545896

申请日：2006-05-04

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SPADACCINI LOUIS ,  FOTACHE CATALIN G

IPC: F23N5/24 ,  F23K5/08 ,  F23K5/20

Abstract: A method and device of this invention includes a fuel deoxygenator and a heating device for removing dissolved oxygen from fuel and then heating that fuel to a temperature above the temperature that would otherwise produce undesirable insoluble materials from a hydrocarbon fuel. The temperature of the fuel and the amount of dissolved oxygen that is removed from the fuel are adjusted according to the combustion process and optimization of desired combustion characteristic s.

公开(公告)号：DE69207592T2

公开(公告)日：1996-09-12

申请号：DE69207592

申请日：1992-05-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SPADACCINI LOUIS ,  KESTEN ARTHUR ,  GUILE ROY

IPC: F01N5/02 ,  F02B51/02 ,  F02C3/20 ,  F02M27/02 ,  F23C6/04 ,  F23C13/00 ,  F23C99/00 ,  F23K5/08 ,  F23R3/30 ,  F23R3/40

Abstract: A method of combusting an endothermic fuel in a lean premixed/prevaporized combustion system includes transferring thermal energy from a combustion air stream to an endothermic fuel decomposition catalyst to cool the combustion air stream and heat the fuel and catalyst to a temperature sufficient to endothermically decompose an endothermic fuel. The catalyst is contacted with fuel to cause the fuel to endothermically decompose into a reaction product stream. The reaction product stream is mixed with the cooled combustion air stream to form a well-mixed, uniformly lean fuel/air mixture and the fuel/air mixture is combusted at an equivalence ratio of less than 1 to produce a combustion product stream. The invention also includes a system for practicing the method.

公开(公告)号：DE69207592D1

公开(公告)日：1996-02-22

申请号：DE69207592

申请日：1992-05-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SPADACCINI LOUIS ,  KESTEN ARTHUR ,  GUILE ROY

IPC: F01N5/02 ,  F02B51/02 ,  F02C3/20 ,  F02M27/02 ,  F23C6/04 ,  F23C13/00 ,  F23C99/00 ,  F23K5/08 ,  F23R3/30 ,  F23R3/40

Abstract: A method of combusting an endothermic fuel in a lean premixed/prevaporized combustion system includes transferring thermal energy from a combustion air stream to an endothermic fuel decomposition catalyst to cool the combustion air stream and heat the fuel and catalyst to a temperature sufficient to endothermically decompose an endothermic fuel. The catalyst is contacted with fuel to cause the fuel to endothermically decompose into a reaction product stream. The reaction product stream is mixed with the cooled combustion air stream to form a well-mixed, uniformly lean fuel/air mixture and the fuel/air mixture is combusted at an equivalence ratio of less than 1 to produce a combustion product stream. The invention also includes a system for practicing the method.

公开(公告)号：DE69201562T2

公开(公告)日：1995-11-09

申请号：DE69201562

申请日：1992-05-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SPADACCINI LOUIS ,  ROSFJORD THOMAS

IPC: F01N5/02 ,  F02B51/02 ,  F02C3/20 ,  F02M27/02 ,  F23C6/04 ,  F23C13/00 ,  F23C99/00 ,  F23R3/30 ,  F23R3/40

Abstract: A method of combusting an endothermic fuel with staged rich/lean combustion includes transferring thermal energy from a heat source, such as the wall of a rich combustor, to an endothermic fuel decomposition catalyst to cool the heat source and heat the fuel and catalyst to a temperature sufficient to endothermically decompose an endothermic fuel. The catalyst is contacted with the fuel to cause the fuel to decompose into a reaction product stream. The reaction product stream is mixed with a first air stream to form a first fuel/air mixture having an equivalence ratio greater than 1 and the first fuel/air mixture is combusted in a rich combustion stage to produce a combustion product stream. The combustion product stream is mixed with a second air stream to form a second fuel/air mixture having an equivalence ratio less than 1 and the second fuel/air mixture is combusted in a lean combustion stage to produce an exhaust gas stream containing decreased amounts of NOx. The invention also includes a system for practicing the method.

公开(公告)号：DE69201562D1

公开(公告)日：1995-04-06

申请号：DE69201562

申请日：1992-05-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SPADACCINI LOUIS ,  ROSFJORD THOMAS

IPC: F01N5/02 ,  F02B51/02 ,  F02C3/20 ,  F02M27/02 ,  F23C6/04 ,  F23C13/00 ,  F23C99/00 ,  F23R3/30 ,  F23R3/40

Abstract: A method of combusting an endothermic fuel with staged rich/lean combustion includes transferring thermal energy from a heat source, such as the wall of a rich combustor, to an endothermic fuel decomposition catalyst to cool the heat source and heat the fuel and catalyst to a temperature sufficient to endothermically decompose an endothermic fuel. The catalyst is contacted with the fuel to cause the fuel to decompose into a reaction product stream. The reaction product stream is mixed with a first air stream to form a first fuel/air mixture having an equivalence ratio greater than 1 and the first fuel/air mixture is combusted in a rich combustion stage to produce a combustion product stream. The combustion product stream is mixed with a second air stream to form a second fuel/air mixture having an equivalence ratio less than 1 and the second fuel/air mixture is combusted in a lean combustion stage to produce an exhaust gas stream containing decreased amounts of NOx. The invention also includes a system for practicing the method.