J. Inst. Electrostat. Jpn.
, 30, 6 (2006) 284 290⺰⓸⚛㕖ᾲࡊ࡜࠭ࡑࠍ↪޿ߚ NOx ㆶరߣๆ⌕೷ߩౣ↢㧙࠺ࠖ࡯࠯࡞ࠛࡦࠫࡦឃ಴ࠟࠬಣℂࠍ⋡⊛ߣߒߚฦ⒳෻ᔕེߩᕈ⢻Ყセ㧙ศ ↰ ᕺ৻㇢㧖,1㧘ᄢਭ଻ 㓷 ┨㧖㧘㤥 ᧁ ᥓ ਯ㧖㧘ጊ ᧄ ବ ᤘ㧖㧔2006 ᐕ 3 ᦬ 2 ᣣฃઃ㧘2006 ᐕ 10 ᦬ 26 ᣣฃℂ㧕NOx Reduction and Regeneration of Adsorbent
Using N2 Nonthermal Plasma
㧙Comparison of Various Types of Reactors toward the Treatment of Diesel Engine Exhaust Gas㧙

Keiichiro YOSHIDA,*, 1 Masaaki OKUBO,* Tomoyuki KUROKI* and Toshiaki YAMAMOTO*(Received March 2, 2006; Accepted October 26, 2006)

Comparison of performance among various types of nonthermal plasma reactors was carried out in order to realize
diesel emission aftertreatment system using our proposed nitrogen nonthermal plasma desorption㧚It was shown thatthe surface discharge reactor and the packed-bed reactor have higher NOx reduction capabilities than the pulse
powered wire-cylinder reactor. It was suggested that low cost exhaust treatment system was possible by using AC
power supply. It was also clarified that the pulse powered wire-cylinder reactor was the most effective reactor forregeneration of NO zeorite adsorbent of molecular sieve 13X.
1.

࡜࠭ࡑ㧕ߦࠃߞߡ NOx ࠍㆶరߢ߈ࠆߎߣ߇ࠊ߆ߞߡ޿ࠆ㧚ߪߓ߼ߦ⥄േゞ㧘ᑪ⸳ᯏ᪾㧘⊒㔚ᯏ㧘⦁⥾ߦᐢߊ૶↪ߐࠇࠆ࠺ࠖ࡯

⪺⠪ࠄߪ㧘NOx ಣℂᴺߣߒߡ NOx ࠍ৻ᣤ㧘ๆ⌕೷ߦๆ⌕ߐ࠯࡞ࠛࡦࠫࡦߪ㜞޿ᾲല₸ߩߚ߼㧘CO2 ឃ಴೥ᷫߦലᨐ⊛ߢߖ㧘ๆ⌕೷ߩౣ↢㧘⣕⌕ߒߚ NO ߩಽ⸃ࠍ⓸⚛㕖ᾲࡊ࡜࠭ࡑ

޽ࠆ㧚ߒ߆ߒ㧘ߘߩឃ಴ࠟࠬਛߦ฽߹ࠇࠆ⓸⚛㉄ൻ‛㧔ᧄ⺰ߦࠃߞߡⴕ߁ᣇᴺࠍឭ᩺ߒߡ޿ࠆ 15-18)㧚NOx ࠍ৻ᣤๆ⌕೷ߦ

ᢥߢߪ NOx = NO + NO2 ߣߔࠆ㧕ߪⅣႺᳪᨴߩේ࿃ߣߥࠆ㧚ๆ⌕ߔࠆߎߣߢ㧘Ớ❗ߐࠇߚ⁁ᘒߢ NOx ߩൻቇ෻ᔕࠍㅴ߼

ߒߚ߇ߞߡ㧘NOx ࠍήኂߥ N2 ߣ O2 ߦㆶర㧘ಽ⸃ߔࠆᔅⷐ߇

ࠄࠇࠆߚ߼㧘ᶖ⾌ࠛࡀ࡞ࠡ࡯ࠍ▵⚂ߢ߈ࠆ㧚߹ߚ㧘⣕⌕ߦ⓸޽ࠆ߇㧘᜛ᢔΆ὾ࠛࡦࠫࡦߩᕈ⾰਄㧘ឃ಴ࠟࠬߦ 10 %⒟ᐲߩ⚛㕖ᾲࡊ࡜࠭ࡑࠍ૶߁ߎߣߢๆ⌕߆ࠄㆶర߹ߢࠍන৻ߩⵝ

㉄⚛ࠍ฽߻ߚ߼㧘ㆶర෻ᔕߪ㕖Ᏹߦ࿎㔍ߢ޽ࠆ㧚⃻࿷㧘㉄ൻ⟎ߢታ⃻ߢ߈ࠆ㧚ߎߩߎߣߪߔߢߦේℂ⊛ߦታ⃻ߢ߈ࠆߎߣ

⸅ᇦ߿ឃ಴ࠟࠬਛߢ⊒↢ߐߖߚ㕖ᾲࡊ࡜࠭ࡑ

1-8)

ࠍ↪޿ߡ㧘

ࠍႎ๔ߒߡ޿ࠆ 15-17)㧚ߎߩᣇᴺߢߪ㧘⓸⚛㔓࿐᳇ߪ PSA㧔࿶NO ࠍ NO2 ߦ㉄ൻߒߚᓟ㧘ዩ⚛᳓㧘ࠕࡦࡕ࠾ࠕ߿὇ൻ᳓⚛ࠍജࠬࠗࡦࠣๆ⌕㧕ⵝ⟎߿ࡐ࡝ࠗࡒ࠼ㆬᛯㅘㆊ⤑ߥߤࠍ↪޿ߡ㧘ㆶర೷ߣߒߡᷝടߒ㧘ㆶర⸅ᇦߦࠃߞߡ NO2 ࠍ N2 ߣ O2 ߦಽ૞ࠅ಴ߔߎߣ߇ߢ߈ࠆߒ㧘ή⸅ᇦߢࠕࡦࡕ࠾ࠕ߽૶↪ߒߥ޿

9-14)⸃ߔࠆㆬᛯ⸅ᇦㆶరᴺ㧔SCR㧕߇⎇ⓥߐࠇߡ޿ࠆ㧚ߒ߆ߩߢ೨⸥ߩࠃ߁ߥ໧㗴ߪߥ޿㧚ߒ㧘ߎߩᚻᴺߪㆶర೷ࠍ៞タߔࠆᔅⷐ߇޽ࠅ㧘߹ߚ㧘⸅ᇦഠߚߛߒ㧘ᣢႎ 15, 17-18)ߢߪ㧘ᦨ߽න⚐ߥࡢࠗࡗ㧙౞╴ဳ෻ᔕൻ㧘ࠕࡦࡕ࠾࠙ࡓᓸ☸ሶ⊒↢߿⸅ᇦ㊀㊄ዻᵹ಴ߥߤߩ໧㗴ߩེߣ㧘㜞ଔߥࡄ࡞ࠬ㔚Ḯࠍ↪޿ߚࡄ࡞ࠬࠦࡠ࠽᡼㔚ߦࠃࠆߚ߼㧘ቢోߦḩ⿷ߢ߈ࠆᵺൻᚻᲑߢߪߥ޿㧚NOx ㆶరࠍⴕߞߡ޿ࠆ㧚ታ↪ൻߩߚ߼ߦߪ㧘⇣ߥࠆᒻᘒߩ෻

৻ᣇ㧘⓸⚛㔓࿐᳇ߢ⊒↢ߐߖߚ㕖ᾲࡊ࡜࠭ࡑ㧔⓸⚛㕖ᾲࡊᔕེߣߩᲧセ߿㧘ࠃࠅ቟ଔߥ AC 㜞࿶㔚Ḯࠍ↪޿ߚታ㛎⚿ᨐ߇ᦸ߹ࠇࠆ㧚ߘߎߢ㧘ᧄ⎇ⓥߢߪ㧘ᣢႎ 15, 17-18)߹ߢߢ㧘ᕈ⢻ࠠ࡯ࡢ࡯࠼㧦⓸⚛㉄ൻ‛㧘৻㉄ൻ⓸⚛㧘⓸⚛㕖ᾲࡊ࡜࠭ࡑ㧘ૐ᷷ࡊ࡜࠭ࡑ㧘ๆ⌕೷ౣ↢㧚* ᄢ㒋ᐭ┙ᄢቇᄢቇ㒮Ꮏቇ⎇ⓥ⑼ᯏ᪾♽ኾ᡹ᯏ᪾Ꮏቇಽ㊁㧔599-8531 ᄢ㒋ᐭ႓Ꮢቇ࿦↸ 1-1㧕Department of Mechanical Engineering, Graduate School ofEngineering, Osaka Prefecture University, 1-1 Gakuen-cho,
Sakai, Osaka 599-8531, JAPAN㧚
1
m07yoshi@me.osakafu-u.ac.jpߩ᣿ࠄ߆ߥࡢࠗࡗ㧙౞╴ဳ෻ᔕེࠍၮᧄߣߒ㧘ߎࠇߦ⺃㔚૕ࠍ㈩ߒߚ෻ᔕེ㧘߅ࠃ߮ᴪ㕙᡼㔚ဳ෻ᔕེߩ⓸⚛㔓࿐᳇ਅߢߩ NOx ㆶరᕈ⢻ߣๆ⌕೷ߩౣ↢ᕈ⢻ࠍᲧセߔࠆ㧚ߎࠇߦࠃߞߡ㧘ታ↪ൻ㧘ࠬࠤ࡯࡞ࠕ࠶ࡊߩߚ߼ߩၮ␆࠺࡯࠲ߩ৻ߟߣ
ߔࠆ㧚

NOx

2.

࿑ 1㧔c㧕ߦ␜ߔ෻ᔕེ H ߪᴪ㕙᡼㔚ဳ෻ᔕེߢ޽ࠆ㧚⋥ᓘታ㛎ⵝ⟎߅ࠃ߮ᣇᴺ

2.1

285 (41)

13 mm㧘㐳ߐ 83 mm ߩ᡼㔚⚛ሶ㧔Ⴧ↰⎇ⓥᚲ⵾㧘OC-002㧕߇㧘

ฦ⒳෻ᔕེߣශട㔚࿶ᵄᒻ࿑ 1㧔a㧕㨪㧔c㧕ߦ NOx ㆶరߦ↪޿ࠆࡊ࡜࠭ࡑ෻ᔕེࠍ␜

ౝᓘ 17 mm ߩࠕ࡞ࡒ࠾࠙ࡓ⵾ኈེߦ෼⚊ߐࠇߡ߅ࠅ㧘෻ᔕࠟߔ㧚࿑ 1㧔a㧕ߪࡢࠗࡗ㧙౞╴ဳ෻ᔕེ㧔A㨪C㧕ߢ޽ࠆ㧚A

ࠬߪኈེౝ㕙ߣ⚛ሶߩ㓗㑆ࠍㅢࠆ㧚᡼㔚⚛ሶߪਅ┵߇㐽ߓࠄ㨪C ߪᄖ⋥ᓘ 24 mm㧘ౝ⋥ᓘ 21.5 mm ߩ⍹⧷▤ߣI2 mm ߩࠬࠇߚౝᓘ 8 mm㧘ᄖᓘ 13 mm ߩࠕ࡞ࡒ࠽࠮࡜ࡒ࠶ࠢ▤ߢ޽ࠅ㧘࠹ࡦ࡟ࠬ᡼㔚✢㧘▤⴫㕙ߦኒ⌕ߐߖߚࠕ࡞ࡒ▗ߩኻะ㔚ᭂ߆▤ოౝㇱߦ㜞࿶㔚ᭂ߇ၒ⸳ߐࠇ㧘ᄖ⴫㕙ߦធ࿾஥ߩ㔚ᭂࡄ࠲ࠄߥࠆ㧚෻ᔕེ A ߩ㔚ᭂ᦭ല㐳㧔L㧕ߪ 50 mm㧘B ߪ 100 mm

࡯ࡦ߇⸳ߌࠄࠇߡ޿ࠆ㧚⓸⚛㕖ᾲࡊ࡜࠭ࡑߪᄖ⴫㕙ߢ⊒↢ߔߢ޽ࠆ㧚෻ᔕེ C ߪ L=50 mm ߢ޽ࠅ㧘ౝ㕙ߦੑ㉄ൻ࠴࠲ࡦࠆ㧚㧔TiO2㧕ಽᢔᶧ㧔⍹ේ↥ᬺ⵾㧘TiO2 ಽᢔ㊂ 0.2 wt%㧘ST-K211㧕

࿑ 2㧔a㧕㨪㧔c㧕ߦ෻ᔕེߦශടߔࠆ㜞㔚࿶ᵄᒻࠍ␜ߔ㧚

5 mL ࠍႣᏓᓟ㧘90 ͠ߢੇ῎ߐߖߡ TiO2 ⤑ࠍᒻᚑߔࠆ㧚TiO2

࿑ 2㧔a㧕ߪ L=50 mm ߩࡢࠗࡗ㧙౞╴ဳ A ߩߺߦශടߔࠆࡄ

⤑ߩෘߐߪ⚂ 0.7 Pm ߢ޽ߞߚ㧚෻ᔕེ C ߦࠃߞߡ㧘⭯޿⺃࡞ࠬᵄߢ޽ࠅ㧘㜞࿶ࡄ࡞ࠬ㔚Ḯ㧔Ⴧ↰⎇ⓥᚲ⵾㧘PPCP Pulser㔚૕ጀߦࠃࠆ㔚⩄ߩ⫾Ⓧ߇ᕈ⢻ߦᓇ㗀ࠍ෸߷ߔ߆㧘߹ߚ૗ࠄ߆ߩ⸅ᇦലᨐ߇⷗ࠄࠇࠆ߆ࠍ⺞ߴࠆ㧚࿑ 1㧔b㧕ߩ෻ᔕེ D㨪G ߪ⺃㔚૕ࡍ࡟࠶࠻ࠍࡢࠗࡗ㧙౞╴ဳ෻ᔕེ A㧔ᄖ⋥ᓘ 24 mm㧘ౝ⋥ᓘ 21.5 mm㧘L=50 mm㧕ౝߦ㈩ߒߚ߽ߩߢ޽ࠆ㧚D㧘E ߪࡍ࡟࠶࠻లႯဳ㧘F㧘G ߪ▤ౝ㕙ߦࡍ࡟࠶࠻ࠍࠪ࡝ࠞ࡮ࠫ࡞ࠦ࠾ࠕࡍ࡯ࠬ࠻㧔᧲੟วᚑ⵾㧘a࠶࠻ࠦ࡯࠻ဳߣ๭߱㧚෻ᔕེ D ߦలႯߔࠆࡍ࡟࠶࠻ߪ⋥ᓘ 3mm ߩ࠴࠲ࡦ㉄ࡃ࡝࠙ࡓ㧔ን჻࠴࠲ࡦ⵾㧘BaTiO3㧘Ყ⺃㔚₸

a’
a-a’

Quartz Tube

Hr=5,000㧕㧘E ߦߪ⋥ᓘ 3 mm ߩੑ㉄ൻ࠴࠲ࡦࡍ࡟࠶࠻㧔ࠛࠬࡢࠗࠛࠬࡑࠪ࠽࡝࡯⵾㧘นⷞశ↪శ⸅ᇦ㧘Hr=70㨪100㧕ࠍల

50 mm

50 mm

ࠕࡠࡦ࠮࡜ࡒ࠶ࠢ E㧕ࠍ↪޿ߡ㧘1 ጀߦ࿕ቯߒߡ߅ࠅ㧘ࡍ࡟

Teflon meshI21.5 mm

I21.5 mmႯߔࠆ㧚ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧘G ߦߪߘࠇߙࠇ㧘⋥ᓘ 3 mm㧘
1 mm ߩ BaTiO3 ࡍ࡟࠶࠻ࠍ࿕ቯߔࠆ㧚ߎࠇߪ㧘ࡍ࡟࠶࠻లႯ
ဳߩᰳὐߩ৻ߟߣߒߡᓥ᧪߆ࠄᜰ៰ߐࠇߡ޿ࠆ࿶ജ៊ᄬࠍ
ૐᷫߔࠆ⋡⊛ߢ૞⵾ߒߚ㧚
Aluminum sphere
Silicone bush

D: I3-BaTiO3
E: I3-TiO2

F: I3-BaTiO3
G: I1-BaTiO3

Packed-bed type

Pellet-coated type

࿑ 1㧔b㧕 ෻ᔕེ D㨪G㧔ࡍ࡟࠶࠻లႯဳ㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳ㧕
Fig. 1 (b) Reactors D~G(Packed-bed type and pellet-coated type).

Gas inlet

Buried electrodeTiO2 layer (Reactor C)
L

Gas inlet

Ground electrode

83 mm

85 mm

Quartz Tube
Stainless steel
discharge rod(I2 mm)Gas outlet

Teflon spacer
I21.5 mm

A, C: L=50 mm
B:
L=100 mm࿑ 1㧔a㧕 ෻ᔕེ A㨪C㧔ࡢࠗࡗ㧙౞╴ဳ㧘෻ᔕེ C ߩߺ▤ౝ㕙ߦ TiO2 ⤑ࠦ࡯࠹ࠖࡦࠣ㧕
Fig. 1 (a) Reactors A~C (Wire-cylinder type,
Reactor C has inner surface coated with TiO2 film).

Discharge electrodepattern
Gas outlet
I8 mm
I13 mm
I17 mm࿑ 1㧔c㧕 ෻ᔕེ H㧔ᴪ㕙᡼㔚ဳ㧕
Fig. 1 (c) Reactor H (Surface discharge type).

286 (42)

30

6

2006

SHC-30/1000㧕ࠍ↪޿ߡ⊒↢ߔࠆ㧚┙ߜ਄߇ࠅᤨ㑆ߪ⚂ 150 ns㧘ࡇ࡯ࠢ㔚࿶ߣ➅ࠅ㄰ߒ๟ᵄᢙߪߘࠇߙࠇ 25㨪35 kV㧘420 Hz

Reactorߢ޽ࠆ㧚࿑ 2㧔b㧕ߪ෻ᔕེ A㨪G ߦශടߔࠆ AC60 Hz 㜞㔚a࿶ᵄᒻߢ޽ࠆ㧚AC100 V ৻⥸㔚Ḯࠍࡀࠝࡦ࠻࡜ࡦࠬ㧔࡟ࠪ࠶

3-way-valveࡊ⵾㧘100-B-15UHCS㧕ߢ㧘20㨪30 kV ߦ᣹࿶ߒߡ޿ࠆ㧚એਅߢߪ㧘෻ᔕེ A ߦࡄ࡞ࠬᵄࠍශടߒߚ႐วߪ̈A㧔ࡄ࡞ࠬ㧕̉㧘bAC60 Hz ࠍශടߒߚ႐วߪනߦ̈Ảߣ⴫⸥ߔࠆ㧚࿑ 2㧔c㧕

By-pass lineߪᴪ㕙᡼㔚ဳ෻ᔕེ H ߦශടߐࠇࠆ AC12.5 kHz ੤ᵹᵄᒻߢ㧘NOxࡇ࡯ࠢ㔚࿶ߪ 3㨪3.5 kV ߢ޽ࠆ㧚ߎߩᵄᒻߪჇ↰⎇ⓥᚲ⵾੤

㪸

Voltage (kV)

-10
30
0

㪹

N2O

Silicagelᵹ㔚Ḯ IP-0.1/8.5 ࠍ↪޿ߡ⊒↢ߔࠆ㧚

Dilution line

0.5 Ps
10 kV

NO/N2

5 ms
15 kV

Fig. 3

Air
compressor

N2

Analyzers

Mass flow controller࿑ 3 ታ㛎ⵝ⟎ߩ᭎⇛࿑
Schematics of experimental setup.

෻ᔕེߦᵹㅢߐߖ㧘ࡍ࡟࠶࠻ߩ NO ๆ⌕⢻ജ߇ήⷞߢ߈ࠆߎ

-304
0

㪺

ߣࠍ⏕⹺ߒߚᓟߢ㔚࿶ශടࠍⴕ޿㧘ฦᚑಽߩ᷹ቯࠍⴕ߁㧚

10 Ps
2 kV

2.4

NO ๆ⌕೷ౣ↢ታ㛎ߩᣇᴺ

ࡢࠗࡗ㧙౞╴ဳ A㧔ࡄ࡞ࠬ㧕㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧘߅ࠃ߮-4

ᴪ㕙᡼㔚ဳ H ߦ NO ๆ⌕೷㧔ࡔ࡞ࠢ␠⵾㧘ࡕ࡟ࠠࡘ࡜ࠪ࡯ࡉ

࿑2 ශട㔚࿶ᵄᒻ㧔a㧦ࡄ࡞ࠬᵄ㧘b㧦AC60Hz㧘c㧦AC12.5 kHz㧕Fig. 2 Applied voltage.
(a: Pulsed wave, b: AC60 Hz, c: AC12.5 kHz).
0

2.2

MS-13X㧘I1.7㨪2 mm ⃿⁁ࡍ࡟࠶࠻㧕ࠍలႯߒߡ↪޿ࠆ㧚ๆ⌕ᤨߪ෻ᔕེߦ࿑ 3 ਛ a ߆ࠄ b ߩะ߈ߦࠟࠬࠍᵹߔ㧚ๆ⌕ᤨߩࠟࠬߪੇ῎ⓨ᳇ߣ㧘2 㧑ߩ⓸⚛Ꮧ㉼ NO ߣࠍᷙวߒ㧘NOታ㛎ⵝ⟎᭎⇛

ࠍ 500 ppm㧘O2 ࠍ 21㧑ߣߒߡ෻ᔕེߦㅢߔ㧚ᵹ㊂ߪ෻ᔕེߦ

NOx ㆶరታ㛎ߣๆ⌕೷ౣ↢ታ㛎ߦ౒ㅢߔࠆታ㛎ⵝ⟎ߩ᭎లႯߔࠆ MS-13X ߩ㊀㊂ߦኻߒߡ 0.36 L/min-g㧔SV=16,000 h-1⇛ࠍ࿑ 3 ߦ␜ߔ㧚ࠪ࡝ࠞࠥ࡞ߢੇ῎ߐߖߚࠦࡦࡊ࡟࠶ࠨ࡯߆

⋧ᒰ㧕ߣߔࠆ㧚⣕⌕ᤨߪ 3 ᣇᑯࠍ෻ᤨ⸘࿁ࠅߦ࿁ォߐߖ㧘ๆࠄߩⓨ᳇㧘޽ࠆ޿ߪ N2 ߣ 2 㧑ߩ⓸⚛Ꮧ㉼ NO ߣࠍࠬ࠻࠶ࡊ

⌕ᤨߣߪㅒᣇะ㧔b ߆ࠄ a ߩะ߈㧕ߦ෻ᔕེߦ N2 ࠍᵹߔ㧚ᵹࡃ࡞ࡉઃࡑࠬࡈࡠ࡯ࠦࡦ࠻ࡠ࡯࡜ࠍㅢߒߡᷙวߒ㧘છᗧߩỚ㊂ߪๆ⌕ᤨߩ 1/2 ߣߔࠆ㧚หᤨߦ෻ᔕེߦ㜞㔚࿶ࠍශടߒߡ㧘ᐲߩ NO Ꮧ㉼ࠟࠬࠍ෻ᔕེߦ࿑ 3 ਛ a ߆ࠄ b ߩะ߈ߦᵹߔߎ

⓸⚛㕖ᾲࡊ࡜࠭ࡑࠍ 0.13㨪0.16 kWh/m3 ߩ㔚ജߢ⊒↢ߐߖ㧘ߣ߇ߢ߈ࠆ㧚߹ߚ㧘3 ᣇᑯࠍ࿑ 3 ߩ⁁ᘒ߆ࠄ෻ᤨ⸘࿁ࠅߦ࿁

ๆ⌕ߒߡ޿ߚ NO ࠍ⣕⌕㧘ㆶరߒߡๆ⌕೷ࠍౣ↢ߔࠆ㧚ታ㛎ォߐߖࠆߎߣߦࠃߞߡ㧘b ߆ࠄ a ߩะ߈ߦࠟࠬࠍ෻ᔕེߦᵹ

ᚻ㗅ߣߒߡߪ㧘߹ߕๆ⌕Ꮏ⒟ࠍ 30 ಽ㑆ⴕ޿㧘ᰴߦ 12 ಽ㑆⣕ㅢߐߖࠆߎߣ߇ߢ߈ࠆ㧚ᓟㅀߔࠆࠃ߁ߦ NO ๆ⌕೷߆ࠄ⣕⌕⌕㧘ㆶరߐߖࠆ㧚ౣ߮㧘ๆ⌕Ꮏ⒟ߦ౉ࠅ㧘৻࿁⋡ߩ NO ỚᐲߐࠇߚࠟࠬỚᐲ߇㧘᷹ቯེߩ᷹ቯ▸࿐ࠍ⿥߃ࠆ႐วߪ㧘N2

ߣᲧセߒ㧘ౣ↢ലᨐࠍᛠីߔࠆ㧚ߢㆡቱᏗ㉼ߔࠆߎߣ߇ߢ߈ࠆ㧚ࠟࠬಽᨆེߦߪ NOx ᷹ቯེ

2.5㧔ၳ႐⵾૞ᚲ⵾㧘ൻቇ⊒శᑼ㧘PG-235㧕ߣ N2O ᷹ቯེ㧔ၳ႐NO Ꮧ㉼ࠟࠬߩ෻ᔕེㅢㆊߦࠃߞߡᷫዋߒߚ NOx ߩഀวࠍ⵾૞ᚲ⵾㧘㕖ಽᢔ⿒ᄖ✢ಽᨆ⸘㧘 VIA-510㧕ࠍ↪޿ࠆ㧚
2.3

ᕈ⢻ᜰᮡ

␜ߔ NOx 㒰෰₸㧔NOx removal efficiency㧕㧘NO ߇㉄ൻߒߡ⊒NOx ㆶరታ㛎ߩᣇᴺ↢ߔࠆ NO2 ㊂ࠍ␜ߔ NO2 ↢ᚑ₸㧔NO2 yield ratio㧕㧘߅ࠃ߮ਇ࠺ࠖ࡯࠯࡞ࠛࡦࠫࡦឃ಴ࠟࠬਛߩ NOx ߪឃ಴ᤨὐߢߪᄢ

ቢోߥㆶర↢ᚑ‛ N2O ߩ⊒↢㊂ࠍ␜ߔ N2O ↢ᚑ₸㧔N2O yieldㇱಽ߇৻㉄ൻ⓸⚛㧔NO㧕ߥߩߢ㧘ᧄ⎇ⓥߢߪ NO ߩㆶరታ㛎

ratio㧕ࠍᰴᑼߦࠃࠅቯ⟵ߔࠆ㧚ࠍⴕ߁㧚 2,000 ppm ߩ⓸⚛Ꮧ㉼ NO ࠍᵹ㊂ 1 L/min ߢ෻ᔕེNOx removal efficiency (%)= (1- CNOx-O / CNO-I)100

ߦᵹㅢߐߖ㧘ਅᵹ஥ߢ NO㧘NOx㧘N2O Ớᐲࠍ᷹ቯߒߡ⓸⚛

NO2 yield ratio (%)=CNO2-O /CNO-I100㕖ᾲࡊ࡜࠭ࡑߩലᨐࠍᛠីߔࠆ㧚߹ߚ㧘TiO2 ࡍ࡟࠶࠻ࠍలႯ

N2O yield ratio (%)= 2CN2O-O / CNO-I100ߒߚ෻ᔕེ E ߩ႐วߪ㧘৻ቯᤨ㑆 NO Ꮧ㉼ࠟࠬࠍ᡼㔚ߥߒߢ(CNOx-O: ਅᵹ NOx Ớᐲ㧘CNO-I: ਄ᵹ NO Ớᐲ㧘CNO2-O: ਅᵹ
NO2 Ớᐲ㧘CN2O-O: ਅᵹ N2O Ớᐲ)
- 3 -

NOx
⓸⚛㕖ᾲࡊ࡜࠭ࡑࠍ↪޿ߚ NOx ㆶరߣๆ⌕೷ߩౣ↢㧔ศ↰ᕺ৻㇢ࠄ㧕

287 (43)

B ߦฦ‫ޘ‬AC60 Hz ࠍශടߒߚ႐วߪૐ߆ߞߚ㧚ࡄ࡞ࠬᵄࠍශ

Ყࠛࡀ࡞ࠡ࡯ኒᐲ㧔SED: Specific Energy Density㧕ߪએਅߩടߒߚ႐วߪ▤ౝ߇৻᭽ߦ⊒శߒ㧘ᐢߊࠬ࠻࡝࡯ࡑ߇⊒↢ߒࠃ߁ߦቯ⟵ߔࠆ㧚
3

SED (kWh/m ) = P (W) / Q (L/min) / 60ߡ޿ߚߩߦኻߒ㧘AC60 Hz ߢߪᒝ޿⊒శ߇⏕⹺ߢ߈ߥ߆ߞߚ㧚(P: discharge power, Q: gas flow rate)ߎߩߚ߼㧘▤ౝߢൻቇ෻ᔕ߇↢ߓࠆ㗔ၞ߇ AC60 Hz ࠍශടߒߎߎߢ᡼㔚㔚ജߪ㧘ࡄ࡞ࠬ㔚࿶ࠍශടߒߚ႐วߪࡊ࡜࠭ࡑ෻

ߚ႐วߢߪዊߐߊ㧘ᕈ⢻߇ૐ޿ߣ⠨߃ࠆ㧚ฦ෻ᔕེߩឬߊᦛ

ᔕེߩᄖ㕙ࠕ࡞ࡒ▗߆ࠄធ࿾ߦะ߆߁࡝࡯࠼✢ߦขઃߌߚ

✢߇ᔅߕේὐࠍㅢࠆߎߣࠍ⠨ᘦߔࠆߣ㧘A㧔ࡄ࡞ࠬ㧕ߩ႐ว㧘㔚ᵹࡊࡠ࡯ࡉ㧔ࡇࠕ࠰ࡦࠛ࡟ࠢ࠻࡝࠶ࠢ␠⵾㧘Current㒰෰ NOx Ớᐲߪ 0㨪1,400 ppm ߩ㑆ߢߪ SED ߦኻߒߡᲧ଀ߒ

Monitor Model 2878㧕ߣࠝࠪࡠࠬࠦ࡯ࡊ㧔ᮮᴡ㔚ᯏ⵾㧘DL1740㧕

ߡ޿ࠆߎߣ߇ࠊ߆ࠆ㧚ߎߩߎߣ߆ࠄ㧘⓸⚛㕖ᾲࡊ࡜࠭ࡑߦࠃ

ࠍ↪޿ߡ᷹ቯߐࠇߚ㔚࿶߅ࠃ߮᡼㔚㔚ᵹ߆ࠄ᳞߼ࠆ㧚ශട㔚

ࠆ NOx ㆶర෻ᔕߩỚᐲଐሽᕈߪ 600㨪2,000 ppm ߩ NOx Ớᐲ࿶߇ AC ߩ႐วߪኻะ㔚ᭂߣធ࿾ߦะ߆߁࡝࡯࠼✢ߩ㑆ߦ▸࿐ߢߪૐ޿ߎߣ߇ࠊ߆ߞߚ㧚߹ߚ㧘L=50 mm ߢ޽ࠆ෻ᔕེ

0.047㨪0.47 PF ߩࠦࡦ࠺ࡦࠨ࡯ࠍធ⛯ߒ㧘࡝ࠨ࡯ࠫࡘᴺߦࠃ

A ߣ L=100 mm ߢ޽ࠆ෻ᔕེ B ߇ห৻ᦛ✢਄ߦߩࠆߎߣ߆ࠄ㧘ࠅ㔚⩄㊂ߩᄌൻ߆ࠄ㧘᡼㔚㔚ᵹࠍ▚಴ߒߡ㔚ജࠍ᳞߼ࠆ㧚NOx ㆶరߦߪṛ⇐ᤨ㑆ࠃࠅ߽ SED ߩᓇ㗀ߩᣇ߇ᄢ߈޿ߎߣ
߇ࠊ߆ࠆ㧚

3.

ታ㛎⚿ᨐ߅ࠃ߮⠨ኤࡢࠗࡗ㧙౞╴ဳએᄖߩ෻ᔕེ㧔D㨪H㧕ߦߟ޿ߡᲧセࠍⴕ

3.1

NOx ㆶరታ㛎߁㧚 SED ߇ 0.1 kWh/m3 એਅߩ▸࿐ߢߪ㧘ᴪ㕙᡼㔚ဳ H㧘ࡍ

3.1.1

࡟࠶࠻లႯဳ E 㧔TiO2 㧕㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳߩ F 㧔I3ฦ෻ᔕེߩශട㔚࿶ߣ᡼㔚㔚ജߩ㑐ଥ⚿ᨐࠍ࿑ 4 ߦ␜ߔ㧚㔚ᭂ᦭ല㐳 L=50 mm ߢ㧘AC60Hz ࠍ

mm-BaTiO3㧕
㧘G㧔I1 mm-BaTiO3㧕ߩ㗅ߦ㒰෰ߐࠇߚ NOx Ớශടߒߚ෻ᔕེ A㧘C㨪G ߦߟ޿ߡᲧセߔࠆ㧚ࡍ࡟࠶࠻లႯ

25㧘ࡢࠗࡗ㧙౞╴ဳ A ߩ㗅ߦ㔚ജ߇ᄢ߈ߊߥࠅ㧘Ⴏဳ E㧔TiO2㧕
ᣢႎߣ߽৻⥌ߔࠆ 18)㧚లႯߔࠆࡍ࡟࠶࠻ߩ⺃㔚₸߇㜞޿߶ߤ㧘᡼㔚㔚ജߪዊߐߊߥߞߚ㧚෻ᔕེ A ߣ TiO2 ⤑ࠍࠦ࡯࠹ࠖࡦࠣߒߚ෻ᔕེ C ߣߢߪᏅ߇⷗ࠄࠇߕ㧘⭯޿⺃㔚૕ጀߩᓇ㗀ߪ⃻ࠇߥ߆ߞߚ㧚2 ⒳㘃ߩࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧔I3
mm-BaTiO3㧕
㧘G㧔I1 mm-BaTiO3㧕ߩ㑆ߦߪᏅ߇⷗ࠄࠇߥ߆

Discharge Power (W)ဳ D㧔BaTiO3㧕ߩ᡼㔚㔚ജ߇ᦨ߽ዊߐߊ㧘ᰴߦࡍ࡟࠶࠻లA (pulse)

20

H

15

G

5
0

ว 6.8 mm㧘G ߩ႐ว 9.3 mm ߢ޽ࠆ߇㧘ߎߩ▸࿐ߢߪ㔚ᭂ㑆

0

10
20
30
Applied voltage (kV)〒㔌ߩᓇ㗀߇ߥ߆ߞߚ㧚߹ߚ㧘෻ᔕེ F㧘G ߩ㔚࿶ߦኻߔࠆ
߈߆ߞߚ㧚ᓟ㧘ߎࠇࠄߦߟ޿ߡߪ⹦⚦ߦ⺞ߴࠆᔅⷐ߇޽ࠆ㧚L=100 mm
ߢ޽ࠆ B ߩ㔚ജߪ L=50 mm ߩ A ߩ㔚ജߩ⚂ 2 ୚ߣߥߞߡ
߅ࠅ㧘㔚ജ߇ L ߦኻߒߡ߶߷Ყ଀ߒߡ޿ߚ㧚߹ߚ㧘A㧔ࡄ࡞ࠬ㧕ߩ႐ว㧘A ߩ႐วߦᲧߴ㧘ห৻㔚࿶ߢ߽ᄢ߈޿㔚ജ߇ᛩ౉ߐࠇߚ㧚
3.1.2

SED ߣ㒰෰ߐࠇߚ NOx Ớᐲߩ㑐ଥ

࿑ 5 ߪ෻ᔕེࠍㅢࠆߎߣߦࠃߞߡㆶరߐࠇ㧘ᷫዋߒߚ NOx

1800

Removed NOx concentration (ppm)ࡒ࠽࠮࡜ࡒ࠶ࠢߩ⺃㔚៊ᄬߦ㑐ଥߒߡ޿ࠆߣᕁࠊࠇࠆ㧚੹

40

࿑ 4 ශട㔚࿶ߣ᡼㔚㔚ജߩ㑐ଥ
Fig. 4 Discharge power versus applied voltage.

㔚ജߩ਄᣹₸ߪ 25 kV એ਄ߩ▸࿐ߢߪ෻ᔕེ A㧘C ࠃࠅ߽ᄢ਄᣹ߒߡ޿ࠆ㧚ߎࠇߪශട㔚࿶ߩ๟ᵄᢙ߇㜞޿ߎߣ߿ࠕ࡞

A

E
D

ߞߚ㧚ਛᔃߩ✢㔚ᭂߣ⺃㔚૕ࡍ࡟࠶࠻వ┵ߩ〒㔌ߪ F ߩ႐ᴪ㕙᡼㔚ဳ H ߢߪ㧘ශട㔚࿶ߦኻߒߡ᡼㔚㔚ജ߇ᕆỗߦ

F
C

B
10

A (pulse)

1600
1400
1200

H

1000
800
600

F

400

A

200

G

C

B

0
0.0

Ớᐲߣ SED ߩ㑐ଥࠍ␜ߔ㧚ࡢࠗࡗ㧙౞╴ဳ㧔A㨪C㧕ߩ㑆ߢ

E

D

0.1

0.2

0.3
3

0.4

0.5

SED (kWh/m )࿑ 5 SED ߣ㒰෰ߐࠇߚ NOx Ớᐲߩ㑐ଥ
Fig. 5 Removed NOx concentration versus SED.

ߪ㧘㒰෰ᕈ⢻ߪࡄ࡞ࠬᵄࠍශടߒߚ L=50 mm ߩ෻ᔕེ A㧔ࡄ࡞ࠬ㧕ߢ㜞ߊ㧘෻ᔕེ C㧔TiO2 ⤑ࠦ࡯࠹ࠖࡦࠣ㧕㧘෻ᔕེ A㧘- 4 -288 (44)306ᐲ߇㧘㜞߆ߞߚ㧚SED ߇ 0.05 kWh/m3 એਅߩ㗔ၞߢߪ㧘ࡍ࡟

2006

6

NO2 yield ratio (%)

㧘 ᴪ㕙᡼㔚ဳ H㧘ࡍ࡟࠶࠻లႯဳ E࠶࠻లႯဳ D㧔BaTiO3㧕
㧔TiO2㧕ߩ 3 ⒳㘃ߪ߶߷ห৻ᦛ✢⁁ߦਸ਼ߞߡ޿ߚ㧚෻ᔕེ Aࠃࠅ߽ࡍ࡟࠶࠻లႯဳ D㧘E ߩ㒰෰ᕈ⢻߇㜞޿ߎߣߦߟ޿ߡ
ߪ㧘ࡍ࡟࠶࠻㑆ߩࡑࠗࠢࡠ࠺ࠖࠬ࠴ࡖ࡯ࠫ߇ⓨ㑆⊛ߦᐢߊಽᏓߒ㧘ൻቇ෻ᔕߩ↢ߓࠆ㗔ၞ߇ᐢ߇ࠆߎߣ߇ℂ↱ߣ⠨߃ࠄࠇࠆ㧚߹ߚ㧘෻ᔕེ A ࠃࠅ߽ F㧘G ߩᕈ⢻߇㜞޿ߩߪ㧘⍹⧷▤ౝ㕙ߩࡍ࡟࠶࠻వ┵ߢߩ㔚⇇㓸ਛߦࠃߞߡ㧘ធ࿾஥߆ࠄ߽ࠬ

B

5

C

4
3
2

E
0

޿ߚ෻ᔕེ G ࠃࠅ߽㜞ᕈ⢻ߢ޽ࠆߎߣ߆ࠄ߽ⵣઃߌࠄࠇࠆ㧚

Fig. 6

N2O yield ratio (%)

3ߥ޿߆ߣ⠨߃ࠆ㧚SED=0.2㨪0.3 kWh/m ߩ▸࿐ߢᴪ㕙᡼㔚ဳH ߪ㧘A㧔ࡄ࡞ࠬ㧕ࠃࠅ߽ᄙ㊂ߩ NOx ࠍ㒰෰ߢ߈ߚ㧚෻ᔕེ
H એᄖߪ㜞࿶㔚Ḯߩ೙⚂਄㧘NOx 㒰෰₸ߪ 30 㧑એਅߣߥߞ
ߚ㧚

100

࿑ 6 NOx 㒰෰₸ߣ NO2 ↢ᚑ₸ߩ㑐ଥ
NO2 yield ratio versus NOx removal efficiency.
E5߿ࠕ࡞ࡒ࠽ߩᾲ៊ᄬ߇㧘㜞޿᡼㔚㔚ജߢᄢ߈ߊߥࠆߚ߼ߢߪ

0.4

B
A

0.0

4

D
G F

3
2

C

0

12

H
A (pulse)

10

NOx 㒰෰₸ߣ NO2 ↢ᚑ₸ߩ㑐ଥ

0

࿑ 6 ߦ࿑ 5 ߣห৻ߩ᧦ઙߢߩ NOx 㒰෰₸ߣ NO2 ↢ᚑ₸ߩ㑐ଥࠍ␜ߔ㧚߹ߕ㧘NOx 㒰෰₸ 30%એਅߩ㗔ၞߦߟ޿ߡ⷗ࠆ

20
40
60
80
NOx removal efficiency (%)

100

࿑ 7 NOx 㒰෰₸ߣ N2O ↢ᚑ₸ߩ㑐ଥ
Fig. 7 N2O yield ratio versus NOx removal efficiency.

ߣ㧘ࡍ࡟࠶࠻లႯဳ E㧔TiO2㧕એᄖߢߪߔߴߡ㧘NOx 㒰෰₸ߣߣ߽ߦ NO2 ↢ᚑ₸߽਄᣹ߒߡ޿ࠆ㧚ߒߚ߇ߞߡ㧘NOx ߩㆶర㧘ಽ⸃ߢ⊒↢ߒߚ O2 ߇ౣ߮ NO ࠍ㉄ൻߒߡ޿ࠆߎߣ߇ࠊ

↢ᚑ₸ 0.4 %એਅߩ㗔ၞࠍ᜛ᄢߒߚ߽ߩߢ޽ࠆ㧚N2O ↢ᚑ₸߆ࠆ㧚෻ᔕེ E ߩ႐วߪ㧘NO2 ↢ᚑ₸߇ 0 ߢ޽ߞߚ㧚NO2 ߪߩ႐วߪ NOx 㒰෰₸ߩჇടߣߣ߽ߦන⺞ߦ਄᣹ߔࠆ௑ะ߇

ᭂᕈࡕ࡯ࡔࡦ࠻ߩᄢ߈޿ಽሶߢ޽ࠅ㧘ๆ⌕ߐࠇ߿ߔ޿ᕈ⾰ࠍ⷗ࠄࠇߚ㧚N2O ߪ NO ࠍಽ⸃ߔࠆ㓙ߩ೽↢ᚑ‛ߣߒߡ↢ߓࠆᜬߟߩߢ㧘NO2 ߪ TiO2 ਄ߦๆ⌕ߐࠇ㧘ਅᵹߦᵹ಴ߒߥ޿ߚ߼

ߎߣ߇㧘߹ߕ⠨߃ࠄࠇࠆ㧚NOx 㒰෰₸ 40 %એ਄ߩ㗔ၞߢ㧘ߢߪߥ޿߆ߣ⠨߃ࠆ㧚ߥ߅㧘෻ᔕེ D㨪G ߩ BaTiO3 ࡍ࡟࠶࠻NO2 ↢ᚑ₸ߩᷫዋߣ N2O ↢ᚑ₸ߩ਄᣹߇หᤨߦ↢ߓߡ޿ࠆ߇㧘NO2 ࠍๆ⌕ߒߥ޿ߎߣࠍ⏕⹺ߒߡ޿ࠆ㧚ᦨ߽ NO2 ↢ᚑ₸ߎߣ߆ࠄ㧘NO2 ߩಽ⸃ᤨߦ N2O ߇↢ᚑߔࠆน⢻ᕈ߽޽ࠆ㧚ߎ߇㜞޿ߩߪ㔚ᭂ᦭ല㐳 L=100 mm ߩࡢࠗࡗ㧙౞╴ဳ෻ᔕེ Bߩਛߢ㧘ࡍ࡟࠶࠻లႯဳ E㧔TiO2㧕ߦ߅޿ߡ․ߦ㜞޿ N2O ↢ߢ޽ߞߚ㧚NOx 㒰෰₸߇ዊߐ޿ߚ߼㧘᷹ቯ⺋Ꮕߪᄢ߈޿߽ߩ

ᚑ߇⷗ࠄࠇߚߩߪ෻ᔕ⚻〝ߪਇ᣿ߢ޽ࠆ߇㧘૗ࠄ߆ߩ⸅ᇦ෻

ߩ㧘෻ᔕེ B ߪ L=50 mm ߩࡢࠗࡗ㧙౞╴ဳ A ࠃࠅ߽ NO2 ↢ᚑ₸߇㜞޿௑ะ߇޽ࠅ㧘ṛ⇐ᤨ㑆ߩᓇ㗀߇⷗ࠄࠇࠆ㧚߹ߚ㧘෻ᔕེ A ߣ෻ᔕེ C 㧔TiO2 ⤑ࠦ࡯࠹ࠖࡦࠣ㧕ߩᏅߪߥߊ㧘ᔕ߇↢ߓߡ޿ࠆน⢻ᕈ߇޽ࠆ㧚TiO2 ⤑ࠍࠦ࡯࠹ࠖࡦࠣߒߚࡢ
ࠗࡗ㧙౞╴ဳ෻ᔕེ C ߩ NO2㧘N2O ↢ᚑ₸㧘NO 㒰෰₸ߪߔߴߡ෻ᔕེ A ߣห╬ߢ޽ࠅ㧘ࡍ࡟࠶࠻ߩࠃ߁ߥ⸅ᇦ෻ᔕ߇⷗

TiO2 ⤑ߩᓇ㗀ߪ⷗ࠄࠇߥ߆ߞߚ㧚෻ᔕེ C㧘ࡍ࡟࠶࠻లႯဳ

ࠄࠇߥ߆ߞߚ㧚ߎࠇߪࡍ࡟࠶࠻߇ᄙሹ⾰ߢ޽ࠆߩߦኻߒ㧘ࠦ

D㧔BaTiO3㧕
㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧘G ߩ NO2 ↢ᚑ₸ߪห╬ߢ࡯࠹ࠖࡦࠣ⤑ߪᐔ㕙ߢ޽ࠆߚ߼㧘⴫㕙ⓍߩᏅ߇ේ࿃ߣ⠨߃ࠆ㧚޽ߞߚ㧚৻ᣇ㧘NOx 㒰෰₸ 40%એ਄ߩ㗔ၞࠍ⷗ࠆߣ㧘෻ᔕེ

2 ⒳㘃ߩࡢࠗࡗ㧙౞╴ဳ A㧔L=50 mm㧕ߣ B㧔L=100 mm㧕ߩA㧔ࡄ࡞ࠬ㧕
㧘ᴪ㕙᡼㔚ဳ H ߩ NO2 ↢ᚑ₸߇㧘ᷫዋߒߡ߅ࠅ㧘㑆ߦߪᏅ߇ߥߊ㧘ṛ⇐ᤨ㑆ߩᓇ㗀ߪ⷗ࠄࠇߥ޿㧚ࡍ࡟࠶࠻ల

NO2 ߩಽ⸃߽චಽߦࠛࡀ࡞ࠡ࡯ࠍਈ߃ࠆߎߣߢน⢻ߢ޽ࠆߎႯဳ D㧔BaTiO3㧕
㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧘G㧘ᴪ㕙᡼㔚ဳ H ߩߣ߇␜ߐࠇߡ޿ࠆ㧚
3.1.4

20
40
60
80
NOx removal efficiency (%)

6㒰෰Ớᐲᦛ✢߇㧘ࡢࠗࡗ㧙౞╴ဳ㧔A㨪C㧕ߢߪ⋥✢⊛ߢ޽ࠆߩߦኻߒ㧘D㨪H ߢߪ਄ߦಲߢ޽ࠆߎߣߦߟ޿ߡߪ㧘BaTiO3

H
A (pulse)1ߩ㔚⇇㓸ਛߩነਈߦߟ޿ߡߪI3 mm ߩࡍ࡟࠶࠻ࠍ↪޿ߚ෻ᔕེ F ߩᣇ߇㧘㔚⇇㓸ਛߩ↢ߓߦߊ޿I1 mm ߩࡍ࡟࠶࠻ࠍ↪

G
F
A

0

࠻࡝࡯ࡑ߇⊒↢ߔࠆߚ߼ߢߪߥ޿߆ߣ⠨߃ࠆ㧚ࡍ࡟࠶࠻వ┵

3.1.3

D

㑆ߢߪᄢ߈ߥᏅ߇⷗ࠄࠇߥ޿㧚 ৻ᣇ㧘NOx 㒰෰₸ 40㧑એ਄NOx 㒰෰₸ߣ N2O ↢ᚑ₸ߩ㑐ଥߩ㗔ၞࠍ⷗ࠆߣ㧘෻ᔕེ A㧔ࡄ࡞ࠬ㧕ߩ N2O ↢ᚑ₸ߪ෻ᔕེ࿑ 7 ߦ࿑ 5㧘6 ߣห৻᧦ઙߢߩ NOx 㒰෰₸ߣ N2O ↢ᚑ₸ߩH ߩ߽ߩࠃࠅ߽ૐߊ㧘ࡄ࡞ࠬࠦࡠ࠽᡼㔚ߢߪ N2O ↢ᚑ㊂߇ዊ

㑐ଥࠍ␜ߔ㧚࿑ਛฝ਄┵ߩ࿑ߪ NOx 㒰෰₸ 12 %એਅ㧘N2O

ߐ޿ߎߣ߇ࠊ߆ߞߚ㧚
- 5 -

NOx
⓸⚛㕖ᾲࡊ࡜࠭ࡑࠍ↪޿ߚ NOx ㆶరߣๆ⌕೷ߩౣ↢㧔ศ↰ᕺ৻㇢ࠄ㧕

3.1.5

289 (45)ฦ⒳෻ᔕེߩ NOx ㆶరࠛࡀ࡞ࠡ࡯ല₸ེ A㧔ࡄ࡞ࠬ㧕ߩߺૐỚᐲߣߥߞߡ޿ߚ㧚෻ᔕེ A㧔ࡄ࡞ࠬ㧕NOx 㒰෰₸ߣ㧘NOx ㆶరߩࠛࡀ࡞ࠡ࡯ല₸㧔න૏᡼㔚㔚ജ

ߢߪ MS-13X ࡍ࡟࠶࠻ࠍలႯߔࠆⓨ㑆߇లಽߦᐢߊ㧘ᦨኒల㊂޽ߚࠅಽ⸃ߐࠇߚ NOx ߩ NO2 ឵▚⾰㊂㧕ࠍ࿑ 8 ߦ␜ߔ㧚Ⴏߣߥࠅ㧘ࠟࠬߣࡍ࡟࠶࠻߇లಽߦធ⸅ߔࠆߚ߼ߣ⠨߃ࠄࠇ߹ߚ㧘෻ᔕེ A㨪C ߦߟ޿ߡߪ᜛ᄢߒߡ␜ߔ㧚NOx 㒰෰₸ࠆ㧚৻ᣇ㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F ߢߪ⍹⧷▤ౝ㕙ߦធ⌕ߒߚ

60 %એਅߩ㗔ၞߢߪᴪ㕙᡼㔚ဳ H ߩࠛࡀ࡞ࠡ࡯ല₸߇ᦨ߽

BaTiO3 ࡍ࡟࠶࠻ߦࠃࠆಳಲߩߚ߼㧘ᴪ㕙᡼㔚ဳ H ߢߪᴪ㕙᡼㜞޿ߎߣ߇ಽ߆ࠆ㧚ߚߛߒ㧘NOx 㒰෰₸ 60 %એ਄ߩ㗔ၞߢ㔚⚛ሶߣࠕ࡞ࡒ⵾ኈེౝ㕙ߣߩ㓗㑆߇⁜޿ߚ߼㧘ᦨኒలႯߦ

ߪ෻ᔕེ A㧔ࡄ࡞ࠬ㧕ߣߩᏅ߇ዊߐߊߥࠆߣ⠨߃ࠄࠇࠆ㧚NOxߪߥࠄߕ㧘ࠟࠬߣ MS-13X ߩធ⸅߇లಽߢߪߥ޿ߣ⠨߃ࠄࠇ㒰෰₸߇ 15 %એਅߩ㗔ၞࠍ⷗ࠆߣ㧘ࡍ࡟࠶࠻లႯဳ D㧘E ߩࠆ㧚ࠛࡀ࡞ࠡ࡯ല₸߇ᦨ߽㜞ߊ㧘෻ᔕེ H ߣห╬ߢ޽ࠆ߇㧘NOxࡢࠗࡗ㧙౞╴ဳ෻ᔕེ A ߩ MS-13X ߩలႯ㊂ߪ 10.4 g ߢ޽㒰෰₸ߩჇടߣߣ߽ߦᕆỗߦૐਅߒߚ㧚ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧘

ߞߚ㧚
ๆ⌕ࠟࠬ㧘
⣕⌕↪ N2 ᵹ㊂㧘᡼㔚㔚ജߪߘࠇߙࠇ 4.0 L/min㧘G ߪ෻ᔕེ D㧘E ߦᰴߋࠛࡀ࡞ࠡ࡯ല₸ࠍ␜ߒߚ㧚ࡢࠗࡗ㧙

2.0 L/min㧘36 W 㧔ࡄ࡞ࠬᵄ㧘31 kV㧘SED=0.14 kWh/m3㧕ߣ౞╴ဳ A㨪C ߩࠛࡀ࡞ࠡ࡯ല₸ߪో෻ᔕེਛᦨ߽ૐ߆ߞߚ㧚ߒߚ㧚ౣ↢Ꮏ⒟ߩ⣕⌕ NO Ớᐲߪࡇ࡯ࠢ୯ 3,340 ppm ߣᦨ߽෻ᔕེ B ߩࠛࡀ࡞ࠡ࡯ല₸ߩᄌൻ㊂ߪ NOx 㒰෰₸ 2㨪10 %㜞ߊߥߞߚ㧚2 ࿁⋡ߩๆ⌕Ꮏ⒟ߢ㧘ਅᵹ NO Ớᐲ߇ 1 ࿁⋡ߩߩ▸࿐ߢߪዊߐߊ㧘෻ᔕེ A㧘C ߩ⚿ᨐߪ B ߩᦛ✢਄ߦਸ਼ߞ⚳ੌᤨࠃࠅૐߊߥߞߡ޿ࠆߎߣ߆ࠄ㧘෻ᔕེ A㧔ࡄ࡞ࠬ㧕ߪ

ߡ޿ߚ㧚NOx 㒰෰₸ 2 %એਅߢߩ෻ᔕེ A㨪C ߩࠛࡀ࡞ࠡ࡯

లಽߥౣ↢⢻ജࠍᜬߟߎߣ߇ࠊ߆ࠆ㧚ല₸ߪ NOx 㒰෰₸ߣߣ߽ߦᕆỗߦૐਅߒߡ޿ࠆ߇㧘ᄌൻ᏷ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧔I3 mm-BaTiO3㧕ߩ MS-13X లႯ㊂ߪ

ߪ 2 g(NO2)/kWh ⒟ᐲߣዊߐ޿ߚ߼㧘੹ᓟࠃࠅᄙߊߩ࠺࡯࠲ࠍ

5.2 g ߢ޽ߞߚ㧚ๆ⌕ࠟࠬ㧘⣕⌕↪ N2 ᵹ㊂㧘᡼㔚㔚ജߣలႯ↪޿ߡ⺋Ꮕ⹏ଔࠍⴕߞߚ਄ߢ⠨ኤߒߚ޿㧚㊂ߣߩ㊂⊛㑐ଥࠍA㧔ࡄ࡞ࠬ㧕ߣห╬ߦߒ㧘
ߘࠇߙࠇ2.0 L/min㧘ࡍ࡟࠶࠻ࠦ࡯࠻ဳ F㧘G ߩࠛࡀ࡞ࠡ࡯ല₸߇෻ᔕེ A㨪C

1.0 L/min㧘19 W 㧔39 kV㧘SED=0.14 kWh/m3㧕ߣߒߚ㧚ౣ↢ࠃࠅ߽㜞߆ߞߚߎߣ߆ࠄ⍹⧷▤ౝ㕙ߦ࿕ቯߒߚ⺃㔚૕ࡍ࡟

Ꮏ⒟ߩࡇ࡯ࠢỚᐲߪ 550 ppm ߢ޽ࠅ㧘ࡄ࡞ࠬᵄශടߩ႐วࠃ

࠶࠻ߪ৻ቯߩലᨐࠍᜬߟߎߣ߇ࠊ߆ࠆ㧚෻ᔕེ D ߩ୯ߪ㧘㔚ࠅ߽ૐ޿୯ߣߥߞߚ㧚߹ߚ㧘2 ࿁⋡ߩๆ⌕Ꮏ⒟ߪ㧘1 ࿁⋡ߩḮߣ෻ᔕེߩࠗࡦࡇ࡯࠳ࡦࠬᢛว਄ߩ೙⚂ߢᄢ㔚ജ߇ᛩ౉⚳ੌᤨห╬ߩਅᵹ NO Ớᐲ߆ࠄ㐿ᆎߐࠇߡ߅ࠅ㧘ౣ↢ᕈ⢻߇ߢ߈ߕ㧘㒰෰₸ 20㧑એਅߣߥߞߚߎߣࠍ⠨߃ࠆߣ㧘⃻ᤨὐߢૐ߆ߞߚ㧚ᦨ߽ታ↪਄᦭ലߥ߽ߩߪᴪ㕙᡼㔚ဳ H ߢ޽ࠆ㧚޿ߕࠇߦߒߡ

ᴪ㕙᡼㔚ဳ H ߢߪ MS-13X ߩలႯ㊂ߪ 3.6 g ߣߥࠅ㧘ๆ⌕߽㧘NOx ߩ⓸⚛㕖ᾲࡊ࡜࠭ࡑߦࠃࠆㆶరߦߪᔅߕߒ߽ᣢႎߩ

ࠟࠬ㧘
⣕⌕↪ N2 ᵹ㊂㧘᡼㔚㔚ജߪߘࠇߙࠇ 1.4 L/min㧘
0.7 L/min㧘ࡄ࡞ࠬࠦࡠ࠽᡼㔚ࠍ૶߁ᔅⷐ߇ή޿ߎߣ߇ࠊ߆ࠆ㧚෻ᔕེߦ

12 W 㧔3.5 kV㧘SED=0.13 kWh/m3㧕ߢ޽ࠆ㧚᡼㔚ᤨߩᵹ಴ࠃࠆ NO2㧘N2O ↢ᚑ₸㧘NOx 㒰෰₸ߩ㆑޿ߦߟ޿ߡߪ੹ᓟ㧘NO ࡇ࡯ࠢỚᐲߪ 74 ppm ߢ 3 ⒳㘃ߩౝ㧘ᦨ߽ૐ߆ߞߚ㧚2 ࿁ᢙ୯⸘▚ߥߤࠍⴕ޿㧘⃻⽎ࠍ⸃᣿ߒߡ޿ߊ੍ቯߢ޽ࠆ㧚
3.2

Regeneration

NO ๆ⌕೷ౣ↢ታ㛎

600

࿑ 9 ߦਅᵹ஥ NO Ớᐲߩផ⒖ࠍ␜ߔ㧚1 ࿁⋡ߩๆ⌕Ꮏ⒟ߩ

20
18
16
14
12
10
8
6
4
2
0

H
D

C

A
B

0

5

10

15

E
F

20
40
60
80
NOx removal efficiency (%)

A (pulse)
F
H

400
300
200
100

A (pulse)G0

2nd ads.

The peak value=3,340 ppm

500
NO concentration (ppm)

Energy efficiency (g (NO2)/kWh)Ớᐲផ⒖ߪ 3 ⒳㘃ߩ෻ᔕེߢ╬ߒߊߥࠆߪߕߢ޽ࠆ߇㧘෻ᔕ
4
3
2
1
0

1st ads.

0
0

100

20

40

60

Elapsed time (min)࿑ 8 NOx 㒰෰₸ߣࠛࡀ࡞ࠡ࡯ല₸ߩ㑐ଥ
Fig. 8 Energy efficiency versus NOx removal efficiency.

࿑9 ࡊ࡜࠭ࡑ⣕⌕ߦࠃࠆMS-13Xߩౣ↢ലᨐ
Fig. 9 Regeneration of MS-13X by plasma desorption.

- 6 -290 (46)

30

6

2006

⻢ㄉ

⋡ߩๆ⌕Ꮏ⒟ߩ NO Ớᐲߪᦨ߽㜞ߊ㧘MS-13X ߩౣ↢ലᨐߪታ㛎ߦදജ޿ߚߛ޿ߚጊ↰⧷᣿㧘ᤐฬବᴦਔ᳁ߦᗵ⻢ߔࠆ㧚ૐ߆ߞߚ㧚
࿑ 5 ߆ࠄࠊ߆ࠆࠃ߁ߦ㧘0.14 kWh/m3 ߩ SED ߢߩ NOx ㆶరᧄ⎇ⓥߪH17ᐕᐲ⑼⎇⾌⵬ഥ㊄ߩഥᚑࠍฃߌߡⴕࠊࠇߚ߽ߩ
ߢ޽ࠆ㧚ᕈ⢻ߪ෻ᔕེ H ߢᦨ߽㜞߆ߞߚߦ߽߆߆ࠊࠄߕ㧘ๆ⌕೷ߩౣ↢ലᨐߪᦨ߽ૐ߆ߞߚ㧚߹ߚ㧘NOx ㆶరᕈ⢻߇ห৻ SED ߢห╬ߢ޽ࠆ F ߣ A㧔ࡄ࡞ࠬ㧕ߩౣ↢ലᨐ߽⇣ߥߞߡ޿ߚ㧚ߎࠇࠄߩ⚿ᨐߣ㧘ౣ↢ലᨐ߇㜞޿߽ߩߪ MS-13X ߆ࠄ⣕⌕ߔࠆNO Ớᐲ߽㜞޿ߎߣࠍ⠨߃ࠆߣ㧘NO ߪๆ⌕ߐࠇߚ⁁ᘒߢߪࡊ࡜࠭ࡑߦࠃࠆಽ⸃߇಴᧪ߥ޿ߣ⠨߃ࠄࠇࠆ㧚෻ᔕེ A㧔ࡄ࡞ࠬ㧕ߩ NO ⣕⌕⢻ജ߇㧘ᦨ߽㜞޿ߎߣ߆ࠄ㧘ࡄ࡞ࠬࠦࡠ࠽᡼
㔚ߢߪ⣕⌕ߦᔅⷐߥḰ቟ቯߥಽሶ߿⩄㔚☸ሶ㧘㜞ㅦߩ㔚ሶ߇↢ߓ߿ߔ޿ߎߣ߇⠨߃ࠄࠇࠆ㧚߹ߚ㧘NO ⣕⌕߳ߩᾲࠛࡀ࡞
ࠡ࡯ߩነਈߥߤߦߟ޿ߡ s ߽ࡢࠗࡗ㧙౞╴ဳߣ⺃㔚૕ࠍ↪޿ߚ෻ᔕེߩ႐วߣߢߪ⇣ߥࠆน⢻ᕈ߽޽ࠆ㧚ߎࠇࠄ㧘ࡊ࡜࠭ࡑߦࠃࠆ⣕⌕⃻⽎ߩ⸃᣿ߪᧄⓂߩ▸࿐ࠍ⿥߃ࠆߚ߼㧘੹ᓟᢙ୯ࠪࡒࡘ࡟࡯࡚ࠪࡦߥߤࠍㅢߒߡ⸃᣿ߒߡ޿߈ߚ޿㧚4.

ෳ⠨ᢥ₂
T. Yamamoto, B. S. Rajanikanth, M. Okubo, T. Kuroki and M.
Nishino: IEEE Trans. Ind. Appl., 39 (2003) 2719
2) ⮮ፉ⧷ൎ㧘㤥ᧁᥓਯ㧘ᄢਭ଻㓷┨ ጊᧄବᤘ㧦ᣣᧄᯏ᪾ቇળ⺰ᢥ㓸㧔B ✬㧕
㧘70 (2004) 817
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Trans. Ind. Appl., 37 (2001) 1492
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㧘67 (2001) 2891
5) T. Yamamoto, M. Okubo, T. Nagaoka and K. Hayakawa: IEEE
Trans. Ind. Appl., 38 (2002) 1168
6) T. Kuroki, M. Takahashi, M. Okubo and T. Yamamoto: IEEE
Trans. Ind. Appl., 38 (2002) 1204
7) Y. Matsui, S. Sato, K. Takashima, S. Katsura and A. Mizuno:
SAE paper, 2003-01-1185
8) ᧻੗⦟ᒾ㧘Ⓑ⪲శੱ㧘㜞ፉ๺ೣ㧘᩵ㅴม㧘᳓㊁ᓆ㧦㕒㔚᳇ቇળ⹹㧘28 (2004) 35
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Record of IEEE/IAS Annual Meeting, Hong Kong (2005) 8

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(1) ᴪ㕙᡼㔚ဳ෻ᔕེ H ߪ NOx 㒰෰₸ 60 %એਅߩ㗔ၞߢࡄ࡞ࠬᵄࠍශടߒߚࡢࠗࡗ㧙౞╴ဳ෻ᔕེࠃࠅ߽⓸⚛㕖ᾲࡊ࡜࠭ࡑߦࠃࠆ NOx ㆶరߩࠛࡀ࡞ࠡ࡯ല₸߇㜞߆ߞߚ㧚(2) AC60 Hz 㜞㔚࿶ࠍශടߒߚ႐ว㧘NOx ㆶరߩࠛࡀ࡞ࠡ
࡯ല₸ߪ NOx 㒰෰₸ 20 %એਅߩ㗔ၞߢ⋥ᓘ 3 mm ߩ
TiO2 ࡍ࡟࠶࠻ࠍలႯߒߚ෻ᔕེE ߦ߅޿ߡᦨ߽㜞ߞߚ㧚(3) NOx ㆶరᕈ⢻ߪ AC60 Hz ࠍශടߒߚࡢࠗࡗ㧙౞╴ဳ෻ᔕེ A㧘B ߢᦨ߽ૐ߆ߞߚ߇㧘෻ᔕེߩౝ㕙ߦ⋥ᓘ
3 mm ޽ࠆ޿ߪ 1 mm ߩ BaTiO3 ࡍ࡟࠶࠻ࠍ৻ጀߦធ⌕ߔࠆߎߣߢ㧘ะ਄ߐߖࠆߎߣ߇ߢ߈ߚ㧚(4) TiO2 ࡍ࡟࠶࠻ࠍలႯߒߚ෻ᔕེߢߪ⸅ᇦ૞↪ߦࠃߞ
ߡ N2O ߩ↢ᚑ㊂߇Ⴧടߒߚ㧚(5) MS-13X ߩ NO ๆ⌕ജౣ↢ലᨐߪࡄ࡞ࠬᵄࠍශടߒߚ
ࡢࠗࡗ㧙౞╴ဳ෻ᔕེ A ߦ߅޿ߡᦨ߽㜞߆ߞߚ㧚- 7 -