No.13007 Shigeru Morita 1 SO X NO X Ando [1] 1.4 / 4000 2000 2000 2 1000 2000 4 FGD 2 1968 1974 K K 3.0 17.5 16 K 1968 11 1976 K 8 K q=k 10 3 H 2 e q Nm 3 /h K He He=Ho+0.65(Hm+Ht) Ho Hm Ht Q 3 / / K 1974 11 24 14
K 1 [2] 1 3 1 0 1 0.04 ppm 0.14 0.03 0.05 0 255 0 15 0.10 0.25 0.15 0.02 0.05 (ppm) ( g/m 3 ) 0.04-0.06 0.07 0.10 200 100 260 120 150 350 300 (0.02-0.030) 0.05 0.04-75 60 3 FGD 3.1 FGD 1966 FGD 1970 20 FGD 1989 1846 176 10 6 3 / 2 [4] 70
FGD 200 1984 1985 150 2 FGD 1989 3 (%) 10 3 Nm 3 /h (%) (10 3 Nm 3 /h ) 87 4 8 74704 42 4 858667 4 0 2 18 0 0 4500 5 0 3 396 0 2 79200 18 1 0 312 0 2 17333 289 16 0 8734 5 0 30221 1 0 1 ( ) 59 33 11263 6 4 190898 ( ) 5 0 3 335 0 2 67000 ( ) 48 2 7 2655 1 5 55313 ( ) 30 1 7 882 0 5 27400 6 0 3 72 0 0 12000 40 2 2 3267 1 9 81675 44 2 4 3681 2 1 83659 24 1 3 5176 2 9 215667 17 0 9 155 0 1 9118 190 10 5 16646 9 4 87611 1 0 1 40 0 0 40000 293 16 2 17760 10 1 60614 40 2 2 1169 0 7 29225 158 8 7 11027 6 3 69791 451 24 9 18080 10 3 40089 1810 100 176312 100 97410
2 FGD [5] 1989 3 FGD 42.4% 10.1% 9.4%. FGD 263 42.6 10 6 3 / 22 26.8 10 6 3 / 63% FGD 3.2 FGD FGD FGD 3 [6] 90% 4-36% FGD 5 Ishikawajima-Harima
FGD FGD 3 FGD CaSO 3 CaCO 3 Ca(OH) 2 CaO CaSO 4 2H 2 O Mg SO 3 Ca SO 3 Mg(OH) 2 Ca(OH) 2 CaCO 3 - NaOH Na 2 SO 3 NaOH CaCO 3 Na 2 SO 3 Ca(OH) 2 CaO NaOH H 2 SO 4 CaCO 3 NH 3 - NH 4 OH (NH 4 ) 2 SO 4 (NH 4 ) 2SO 3 NH 3 - Ca(OH) 2 - Al 2 (SO 4 ) 3Al 2 O 3 Al 2 (SO 4 ) 2 CaCO 3 MgSO 3 Mg(OH) 2 MgSO 4 Ca(OH) 2 Ca(OH) 2 Na CO 3 Na 2 CO 3 FGD FGD 80% 1.4 2.4 FGD
4 FGD FGD - FGD / 3 [7]
4.1 - CaSO4 2H2O 4.2 Chiyoda
4.3 FGD 4 - [8] 5 FGD 5.1 FGD FGD FGD 80% 84% FGD FGD 6 [9] 316L 317L FGD 316L 7 6 SOX(ppm) NOX(ppm) HCL(ppm) FH(ppm) (mg/m 3 N) 300-1000 100-200 10-40 5-30 100-200 500-2000 60-100 <2 <3 20-50 FGD FGD 316L 317L 8 [10]
FGD 12 18 FGD
8 FGD 317L SS41( ) 317L SCS14(316 ) 5.2 FGD 5.2.1 [11 14] 6 7 316L 317L 1986 YUS260 YUS270 YUS260 YUS270 100 YUS260 YUS260 YUS270 YUS270 FGD FGD 1 2 HCI 3 % G.I. G.I =-[Cr]+3.6[Ni]+4.7[Mo]+11.5[Cu]
L.I. % L.I = [Cr]+0.4[Ni]+2.7[Mo]+[Cu]+18.7[N] YUS260 YUS270 5 [13] G I 60 L.I 36 L.I>48 YUS260 YUS270 G.I 60 L.I 36 L.I-G.I. [15] 5 2 2 C22 Japan Steel Works C22 FGD C276 3 12 m C22 5 FGD FGD C22 C276 FGD [16] 6 FGD FGD 6 1 1985 CaSO 4 Hokkaido Babcock Hakkaido Tomoatsuma 350MW 6 2 Ebara 1971 1972 150 70 SOX [ NH4 2SO4] NOX1997 3000-10000Nm 3 /h 1991 6 Chubu 12000Nm 3 /h 1992 10
6 3 Electri Power Development 1978 1981 10000Nm 3 /h 1984 1987 Matsushima 1 300000Nm 3 /h 90MW SO 2 NO X 1993 FGD - 7 6 1988 1.6482 2000 38% 2.277 2010 17% 2.67 LNG 7 1972 2000 110 4000 1990 1999 22
1500 2000 14 1070 8 FGD C22 FGD FGD
[1] Jumpei Ando:Acid rain abatement technology,nikkan Kogyo Shimbun,10 July 1991 [2] Thermal and Nuclear Power Engineering Scociety of Japan; Environmental protection technology and equipment for thermal power stations,iv. Desulfurization equipment,the Thermal and Nuclear Power,Vol.41 No7,1990,P,911 [3] Environment Agency: Environment white paper(general explanation),1991 edition [4] Environment Agency: Environment white paper(various articls),1991 edition [5] Present state of SO2 NOX abatement Plant in Japan,Project News Company,1990 [6] Reference 2:P.193 [7] Reference 2:P.195 [8] Akihiro Sakuma,Fumio Kadota,Masato Iwasaki,Shinichi Takimoto; Features,and operating experiens of magnesium hydroxide process for flue gas desulfurization, Mitsubishi Juko Giho,Vol.24,No.6(1987-11),P.578 [9] Thermal and Nuclear Power Engineering Society of Japan: Chemical control in thermal and nuclear power generating stations,iv.fllue gas control,1 Treatment of flue gas and ash from thermal power stations,thermal an Nuclear Power,Vol.37,No.12,1986,P.1401 [10] Reference 2:P.924 [11] Ryuichiro Ebara,Hideo Nakamoto,Takeji Matsumoto,Eiji Sato,Ryo Matsuhashi,Mitsuo ()zeki: Development of new corrosion resistant stainless steels for smokestacks,mitsubishi Juko Giho, Vol.27,No.5(1990-9),P.1 [12] Ryuichiro Ebara,Hideo Nakamoto,Takeji Matsumoto,Eiji Sato,Ryo Matsuhashi,Hideo Abo Corrosion behavior of stainless steels in smokestack envionments,proceedings of the International Conference on Stainless,1991,Chinba,ISIJ,P.1191 [13] Ryo Matsuhashi,Eiji Ssto,Hideo Abo Ryuichiro Ebara,Hideo Nakamoto,Takeji Matsumoto: Corrosion behavior of stainless steels in sulfuric acid dew point environments,proceesings of the International Conference on Stainless steels, 1991,Chinba,ISIJ,P.1198 [14] Ryo Matsuhashi,Eiji Sato,Hideo Abo,RyuichiroEbara,HideoNakamoto,Takeji Matsumoto: Corrosion behavior of stainless steels in sulfuric acid containing Cl- and Fe3+,Zairyo to Kankyo,Vol.40,No.8 (1991),P.545 [15] Hastelloy C 22 clad steel plate for flue gas desulfuization(fgd)system : The Japan Steel Works,Ltd.,June 1991 [16] Thermal and Nuclear Power Engineering Societty of Japan: Ebvironmental protection technology and equipment for thermal power stations,vi.future technology for SO2 and NOX abatement,the Thermal and Nuclear Power, Vol.41,No.9(1990),P.1161