Title:
CIRCULATING FLUIDIZED BED COMBUSTOR AND A METHOD OF OPERATING A CIRCULATING FLUIDIZED BED COMBUSTOR
Document Type and Number:
WIPO Patent Application WO/2011/135518
Kind Code:
A3
Abstract:
A circulating fluidized bed combustor arrangement includes (a) a circulating fluidized bed reactor in which (i) a combustion chamber combusts a fuel material in a suspension of solid particles of a circulating fluidized bed, (ii) a first cyclone separator arrangement receives a mixture of gases and solid particles from the combustion chamber for separating a first fraction of the solid particles from the exhaust gases, and (iii) a solid particle return system connected to the first cyclone separator returns separated solid particles to the combustion chamber, (b) a heat transfer section including a water/steam heat exchanger section arranged after the first cyclone separator arrangement in the exhaust gas flow path, (c) a heat recovery device provided in connection with the combustion chamber, the first cyclone separator arrangement and the heat transfer section being arranged for recovering heat resulting from the combustion process in the combustion chamber, (d) a selective catalytic reduction system arranged in the exhaust gas flow path, after the heat transfer section, for removing NOx from the exhaust gas, (e) a device for injecting NOx reducing agent into the exhaust gases upstream of the selective catalytic reduction system, and (f) a second cyclone separator arrangement provided downstream of the first cyclone separator arrangement and upstream of the heat transfer section, in which a second fraction of the solid particles is separated form the exhaust gases.
Inventors:
SELLAKUMAR KUMAR MUTHUSAMI (US)
CIARLANTE VICTOR (US)
HACK HORST (US)
CIARLANTE VICTOR (US)
HACK HORST (US)
Application Number:
PCT/IB2011/051824
Publication Date:
April 04, 2013
Filing Date:
April 27, 2011
Export Citation:
Assignee:
FOSTER WHEELER NORTH AMERICA CORP (US)
SELLAKUMAR KUMAR MUTHUSAMI (US)
CIARLANTE VICTOR (US)
HACK HORST (US)
SELLAKUMAR KUMAR MUTHUSAMI (US)
CIARLANTE VICTOR (US)
HACK HORST (US)
International Classes:
F23C10/00; F23C10/10; F23J15/00; F23J15/02
Domestic Patent References:
| WO1999014531A1 | 1999-03-25 | |||
| WO2007104655A1 | 2007-09-20 |
Foreign References:
| US20090074629A1 | 2009-03-19 | |||
| US4597774A | 1986-07-01 | |||
| US20090211500A1 | 2009-08-27 | |||
| EP0062363A1 | 1982-10-13 |
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