Combustion characteristics of sewage sludge in an incineration plant for energy recovery

被引:196
作者
Murakami, Takahiro [1 ]
Suzuki, Yoshizo [1 ]
Nagasawa, Hidekazu [2 ]
Yamamoto, Takafumi [2 ]
Koseki, Takami [3 ]
Hirose, Hitoshi [3 ]
Okamoto, Seiichiro [4 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan
[2] Tsukishima Kikai Co Ltd, Chuo Ku, Tokyo 1040051, Japan
[3] Sanki Engn Co Ltd, Kanagawa 2420001, Japan
[4] PWRI, Tsukuba, Ibaraki 3058516, Japan
关键词
Sewage sludge; Incineration plant; Energy recovery; Combustion characteristics; Pressurized fluidized bed; FLUIDIZED-BED COMBUSTION; GASIFICATION; N2O; COCOMBUSTION; EMISSIONS; REACTOR; COALS; NOX; GAS;
D O I
10.1016/j.fuproc.2009.03.003
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A new type of sewage sludge incinerator that combines a pressurized fluidized bed combustor and a turbocharger driven by flue gas was proposed. In this study, the operation and combustion characteristics of a demonstration plant were clarified, and the design data for a commercial plant were obtained. The steady operation exceeded 600 h in total. CO, NO(x), and N(2)O emissions in the flue gas were less than half those of a conventional plant. At an incineration capacity of 100 t/day, an energy savings of approximately 50% can be achieved compared with a conventional plant because the forced draft fan (FDF), the induced draft fan (IDF) and the feed water pump are unnecessary. Also, pressurization allowed reduction of the combustor volume, so about 25% of supplementary fuel can be reduced. Consequently, CO(2) emissions originating from electric power consumption and supplementary fuel is expected to be reduced by about 40% annually compared with emissions from a conventional plant; in addition, the cost of fuel and electricity can be reduced by 23 million yen. Therefore, this advanced incinerator for sewage sludge can realize energy recovery and savings as well as a low environmental impact. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:778 / 783
页数:6
相关论文
共 19 条
[1]   The characterisation of tars produced during the gasification of sewage sludge in a spouted bed reactor [J].
Adegoroye, A ;
Paterson, N ;
Li, X ;
Morgan, T ;
Herod, AA ;
Dugwell, DR ;
Kandiyoti, R .
FUEL, 2004, 83 (14-15) :1949-1960
[2]  
[Anonymous], 2007, Guide d'integration des eoliennes au territoire, P1
[3]   Co-combustion of peach and apricot stone with coal in a bubbling fluidized bed [J].
Atimtay, Aysel T. ;
Kaynak, Burcak .
FUEL PROCESSING TECHNOLOGY, 2008, 89 (02) :183-197
[4]  
HONDA H, 2001, GLOB ENVIRON JAPANES, V2, P98
[5]  
*JAP SEW WORKS ASS, 2007, INV REP CURR STAT SL
[6]  
*JPA I WAST ENG TE, 2007, GLOB WARM INV
[7]   Gaseous emissions from co-combustion of sewage sludge and coal/wood in a fluidized bed [J].
Leckner, B ;
Åmand, LE ;
Lücke, K ;
Werther, J .
FUEL, 2004, 83 (4-5) :477-486
[8]   Fluidized bed combustion: Mixing and pollutant limitation [J].
Leckner, B .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 1998, 24 (01) :31-61
[9]   Influence of gas residence time and air ratio on the air gasification of dried sewage sludge in a bubbling fluidised bed [J].
Manya, Joan J. ;
Sanchez, Jose L. ;
Abrego, Javier ;
Gonzalo, Alberto ;
Arauzo, Jesus .
FUEL, 2006, 85 (14-15) :2027-2033
[10]  
*MIN ENV, 2007, INV REP EXH TREATM I