䌄䌍䌅䋨䉳䊜䉼䊦䉣䊷䊁䊦䋩䈫ᑄᾲ䈱⚵䉂ว䉒䈞䈮䉋䉎⸅ᇦ䈮ଐሽ䈚䈭䈇ᣂⷙ᳓⚛ᡷ⾰䉲䉴䊁䊛䈱㐿⊒㩷㩷⎇ⓥઍ⴫⠪㩷 ർᶏ㆏ᄢቇᄢቇ㒮Ꮏቇ⎇ⓥ⑼㩷 ಎᢎ᝼㩷 ਛ᧛␭ੑ㩷㩷䋱䋮✜⸒㩷䋱䋮䋱㩷 ⎇ⓥ⢛᥊㩷㪚㪦㪉 ೥ᷫ⸘↹䈱৻Ⅳ䈫䈚䈩䋬⚻ᷣ↥ᬺ⋭䈏ឝ䈕䉎⋭䉣䊈䊦䉩䊷ኻ╷䈮䇸ᑄᾲ೑↪䇹䈏䈅䉎䋮․䈮ᣣᧄ䈮䈍䈔䉎 㪚㪦㪉 ឃ಴䈮䈲᳃↢࿕ቯ⸳஻䋨Ꮏ႐䈭䈬䋩䈎䉌䈱ነਈ䈏⒖േឃ಴Ḯ䋨⥄േゞ䈭䈬䋩䈮඘ᢜ䈜䉎䈖䈫䈏ⅣႺ⊕ᦠ䈭䈬䈪䉅ႎ๔䈘䉏䈩䈍䉍䋬䈠䈱ਔベ䈪 㪚㪦㪉 ೥ᷫദജ䉕䈚䈩䈇䉎䋮࿕ቯឃ಴Ḯ䈱䈉䈤㋕㍑ᬺ䈏✦䉄䉎ഀว䈲ήⷞ䈪䈐䈝䋬䈖䉏䉌䈎䉌䇸ᝥ䈩䇹䉌䉏䉎ᑄᾲ䉕䈬䈱䉋䈉䈮೑↪䈜䉎䈎䈏⃻࿷ᛴ䈋䉎ᄢ䈐䈭⺖㗴䈱৻䈧䈫䈇䈦䈩䉅䉋䈇䋮ᧄ⎇ⓥ⺖㗴䈲䋬ᓥ᧪ᴺ䈎䉌⣕ළ䈚䈢ᣂ䈚䈇ᚻᴺ䈮䉋䉍䈠䈱໧㗴䈮⋥ធነਈ䈚䉋䈉䈫䈜䉎䉅䈱䈪䈅䉎䋮㩷ᓥ᧪䈱ᑄᾲ᦭ല೑↪ᛛⴚ䈫䈇䈋䈳䋬䉁䈝╙৻䈮᜼䈏䉎䈱䈏䇸ᾲ㔚⊒㔚䇹䈪䈅䉎䋮䈖䈱ᛛⴚ䈲ᭂ䉄䈩᦭ᦸ䈪䈅䉍࿖╷䈫䈚䈩ജ䉕౉䉏䈩䈇䉎䈮䉅㑐䉒䉌䈝䋬㜞ല₸䈮䉣䊈䊦䉩䊷࿁෼䈪䈐䉎᧚ᢱ㐿⊒䈲࿎㔍䉕ᭂ䉄䈩䈇䉎䋮⃻࿷ᦨ䉅᦭ᦸ䈭ᛛⴚ䈪䈘䈋䋬⵾ㅧ䉮䉴䊃䉇᧚ᢱ䉮䉴䊃䈏〡䈰਄䈏䉍䋬ታ↪⊛䈪䈲䈭䈇䋮⋭䉣䊈䊦䉩䊷ኻ╷䈲ᤨ㑆䈫䈱ᚢ䈇䈪䉅䈅䉎䈢䉄䋬㐳ᦼ⊛䈮⠨䈋䉎䉅䈱એᄖ䈮䋬⍴ᦼ⊛䈮ኻಣ䈪䈐䉎ᛛⴚ䉅ਇนᰳ䈪䈅䉎䋮ᓟ⠪䈮ኻ䈚䈩ᾲ㔚⚛ሶ䈱㐿⊒䈲ᦸ䉄䈭䈇䋮ᧄឭ᩺䈲䈖䈱㗔ၞ䉕䉦䊋䊷䈜䉎⋡⊛䈪⠨᩺䈘䉏䈢䉅䈱䈪䈅䉎䋮㩷㩷䋱䋮䋲㩷 ⃻⁁䈱໧㗴䈮ኻ䈜䉎⺖㗴䈫ኻ╷㩷ᣢሽ䈱䉟䊮䊐䊤䉕૶䈦䈩᳓⚛䈻䈫ᡷ⾰䈜䉎䉲䉴䊁䊛䈫䈚䈩䈲䋬⸅ᇦ䉕↪䈇䈢䉅䈱䈏ਥ䈪䈅䉎䋮䈚䈎䈚䈭䈏䉌䋬⸅ᇦ․᦭䈱໧㗴䋨⸅ᇦⵍᲥ䉕ㆱ䈔䉎䈢䉄䈱೨ಣℂ䈏ᭂ䉄䈩㊀ⷐ䋮䊜䊮䊁䊅䊮䉴䈏ᔅⷐ䋮䊧䉝䊜䉺䊦䈱䉮䉴䊃㜞䈱ᓇ㗀䉕⋥ធฃ䈔䉎䋮Άᢱ䉕ㆬ䈹䋮⠴ਭᕈ䈮⇼໧ὐ䈏䈅䉎㩷 䈭䈬䋩䈲䋬⸅ᇦ᧚ᢱ㐿⊒䈏ㅴ䉃੹ᣣ䈪䈅䈦䈩䉅ቢో䈮ᛄ᜞䈪䈐䈭䈇䋮⸅ᇦ䈪䈲䈭䈒䋬⋥ធΆ὾ᴺ䈮䉋䉍ㇱಽ㉄ൻ෻ᔕ䉕೑↪䈚䈩὇ൻ᳓⚛䈎䉌᳓⚛䈱䉂䉕ᒁ䈐಴䈜⹜䉂䉅䈅䉎䈏䋬ਛ᷷႐䋨㪌㪇㪇㪄㪍㪇㪇㷄䋩䈪䈱෻ᔕ೙ᓮ䈏ਇนᰳ䈪䈅䉍䋬䈠䈱ᱜ⏕䈭᷷ᐲ೙ᓮ䈲㔍䈚䈇䋮㩷ᚒ䇱䈱ឭ᩺䈜䉎ᚻᴺ䈲䋬㪉㪇㪇 ᐲ⒟ᐲ䈱ૐ᷷䈱䉂䉕૶䈦䈩䇸⸅ᇦ䈭䈚䈪䇹㪛㪤㪜 䉕 㪚㪦 䈮㜞ല₸䈪ᄌ឵䈚䋬䉧䉴䉲䊐䊃෻ᔕ䈮䉋䉍 㪚㪦 䉕᳓⚛䈮ᄌ឵䈜䉎䈫䈇䈉䉅䈱䈪䈅䉍䋬ోᎿ⒟䈮䈍䈇䈩䇸⸅ᇦ䉕ᔅⷐ䈫䈚䈭䈇䇹᳇⋧෻ᔕ䈱䉂䈪ቢ⚿䈜䉎䋮䈖䈱ታ⃻䈱䈢䉄䋬․䈮೨⠪䈱Ꮏ⒟䋨㪛㪤㪜㸢㪚㪦䋩䈮䈍䈇䈩↳⺧⠪䉌䈱㐿⊒䈚䈢䇸ૐ᷷⌕Ἣ෻ᔕ㗔ၞ䉕೑↪䈚䈢Άᢱᡷ⾰䇹ᚻᴺ䉕↪䈇䉎䋮䈖䉏䈲 㪉㪈㪇㷄ઃㄭ䈮䈩䇮䈅䉎․ቯ䈱ᷙว᧦ઙ䈪䈲๟ᦼ⊛䈭ૐ᷷㉄ൻ෻ᔕ䈏Ᏹ࿶ਅ䈪⿠䈐䉎䈫䈇䈉 㪛㪤㪜 䈱ᣂ䈚䈇․ᕈ䉕ᵴ↪䈚䈢䉅䈱䈪䈅䉍䋬䈖䈱෻ᔕ⚻〝䈱ሽ࿷䈲↳⺧⠪䉌䈱ᦨᣂ䈱⎇ⓥ䈮䉋䈦䈩⷗಴䈘䉏䈢䉅䈱䈪䈅䉎䋮䈭䈍䋬⸅ᇦ䉕↪䈇䈢䈫䈚䈩䉅 㪉㪇㪇 ᐲઃㄭ䈪⸅ᇦᵴᕈ䈏䈅䉎䉅䈱䈲ዋ䈭䈒䋬৻⥸⊛䈮䈲෼₸䈏ૐ䈒䈩૶䈇‛䈮䈭䉌䈭䈇䋨䋽⸅ᇦ䈱䉰䉟䊃䈏೎䈱ਇᵴᕈ䈱ಽሶ䈮䉋䉍භ᜚䈘䉏䈩䈚䉁䈇૞േ䈚䈭䈇䋮䈠䈱䈢䉄⸅ᇦ෻ᔕ䈫䈲䈇䈋䋬䈠䉏䉌䉕⣕㔌䈘䈞䉎䈢䉄䈱੍㧙㧙ᾲ᷷ᐲ䈏ᔅⷐ䋩䋮䈖䈱᷷ᐲ䈱᦭ല೑↪䈮䈲೨ㅀ䈱ᾲ㔚⚛ሶ䈏ᣢሽᛛⴚ䈫䈚䈩⍮䉌䉏䉎䈏䋬೨ㅀ䈱ㅢ䉍ᾲ㔚ᄌ឵ല₸䈲ૐ䈒䋬ᧄᚻᴺ䈫䈲Ყ䈼䉅䈱䈮䈭䉌䈭䈇䋮䈜䈭䉒䈤 㪉㪇㪇 ᐲ⒟ᐲ䈪ᡷ⾰䉕ⴕ䈉䉲䉴䊁䊛䈫䈚䈩䈲ઁ䈮ኻᲧ䈜䉎䉅䈱䈏䈭䈇䋮㩷㩷䋱䋮䋳㩷 ᧄ⎇ⓥ䈪⋡ᜰ䈜䈖䈫㩷਄⸥䈱ᡷ⾰䉲䉴䊁䊛䉕⏕ታ䈮䈜䉎਄䈪䋬ᚒ䇱䈏⊒⷗䈚䈢䇸㪛㪤㪜 䈎䉌 㪚㪦 䈻䈱᳇⋧䈪䈱Ά὾෻ᔕ䉕೑↪䈚䈢ૐ᷷ᡷ⾰ㆊ⒟䇹䈱䊜䉦䊆䉵䊛䉕ᛠី䈜䉎䈖䈫䈲䋬䉲䉴䊁䊛䈱቟ቯᕈ䉇ㆡ↪ᕈ䉕⺞䈼䉎਄䈪ᭂ䉄䈩㊀ⷐ䈭⺖㗴䈪䈅䉎䋮㪚㪦 એ㒠䈱᳓⚛↢ᚑ䈍䉋䈶⊒㔚䈮䈧䈇䈩䈲᳓⫳᳇ᡷ⾰䈍䉋䈶Άᢱ㔚ᳰ䈭䈬䈫䈇䈦䈢ᣢሽ⸥ㅀ䉕ㆡ↪䈜䉎䈖䈫䈪ኻᔕน⢻䈪䈅䉎䈢䉄䋬ᧄ䉲䉴䊁䊛䈱․ᓽ䈲䇸䈬䈱䉋䈉䈮䈚䈩 㪚㪦 ↢ᚑㆊ⒟䉕✺ኒ䈮೙ᓮ䈪䈐䉎䈱䈎䇹䈫䈇䈉䈫䈖䉐䈮ዧ䈐䉎䈎䉌䈪䈅䉎䋮ട䈋䈩䋬ᣂΆᢱ䈫䈱૏⟎䈨䈔䈪䈅䉎 㪛㪤㪜 䈱ૐ᷷㉄ൻ෻ᔕ䈮㑐䈚䈩⹦⚦䈲䈾䈫䉖䈬⍮䉌䉏䈩䈇䈭䈇䋮㐿⊒㗄⋡䈫䈚䈩䈅䈕䈢䇸䉲䉴䊁䊛቟ቯᕈ䇹䇸᳓⚛⚐ᐲ䈱ะ਄䇹䇸⊒㔚ലᨐ䇹䈱ᩮᐙ䈲⚐ᐲ䈱㜞䈇 㪚㪦 䉕↢↥ᕈ䉋䈒↢ᚑน⢻䈪䈅䉎䈎䈫䈇䈉໧㗴䈮⟎䈐឵䉒䉎䋮એ਄䉋䉍䋬ᧄᐕᐲ䈲䊒䊨䊃䉺䉟䊒૞ᚑ䈱೨Ბ㓏䈪䈅䉎䇸㪛㪤㪜 ૐ᷷㉄ൻ෻ᔕ䈮䉋䉎 㪚㪦 ↢ᚑ䇹䈮㑐䈜䉎⍮⷗䉕ᷓ䉄䉎䈖䈫䉕⋡ᮡ䈮䋬ਥ䈮෻ᔕ⚻〝䈱⸃᣿䉕⋡ᜰ䈚䈢ၮ␆⎇ⓥ䉕ⴕ䈦䈢䋮䈠䈱⚿ᨐ䈱৻ㇱ䈮䈧䈇䈩ႎ๔䈚䈢䈇䋮㩷㩷䋲䋮ታ㛎ⵝ⟎䋨᭎⇛⺑᣿䋩㩷ታ㛎ⵝ⟎䈱᭎ⷐ䉕 㪝㫀㪾㪅㪈 䈮␜䈜䋮㪛㪤㪜 䈱㉄ൻ෻ᔕ䈲 㪬 ሼဳ䈱෻ᔕ▤㩿ౝᓘ 㪈㪉㫄㫄䋬ᵹ〝㐳㪈㪌㪇㪇㫄㫄㪀䈪ㅴⴕ䈘䈞䉎䋮▤౉ญ䈎䉌 㪌㪇㪇㫄㫄 䈪 㪢 ဳᾲ㔚ኻ䈮䉋䉎᷷ᐲ᷹ቯ㧔Hakko HTK0219,
ធวㇱ⋥ᓘ⚂ 1.0 mm㧕䉕䋬㪌㪇㪇㫄㫄 䈫 㪈㪇㪇㪇㫄㫄 䈱ਔ࿾ὐ䈪䊙䉟䉪䊨䉲䊥䊮䉳䈮䉋䉎䉧䉴ណข䉕ⴕ䈦䈢䋮ណข䈘䉏䈢䉧䉴䈲 㪫㪚㪛 ဳ䉧䉴䉪䊨䊙䊃䉫䊤䊐䈮䉋䉍ಽᨆ䈚䈢䋮᳓⚛᷹ቯ䈮䈲ᣣ┙ 㪇㪉㪊 ဳ䋨䉦䊤䊛లႯ೷䋺㪤㫆㫃㪼㪺㫌㫃㪸㫉㩷㪪㫀㪼㫍㪼㩷㪌㪘䋬䉨䊞䊥䉝䉧䉴䋺㪥㪉䋩䉕䋬᳓⚛એᄖ䈱ᚑಽ䈱᷹ቯ䈮䈲ፉᵤ 㪞㪚㪄㪈㪋㪙䋨䉦䊤䊛లႯ೷䋺㪤㫆㫃㪼㪺㫌㫃㪸㫉㩷㪪㫀㪼㫍㪼㩷㪌㪘 ෸䈶 㪧㫆㫉㪸㫇㪸㫂㩷㪫䋬䉨䊞䊥䉝䉧䉴䋺㪟㪼䋩䉕૶↪䈚䈢䋮䉧䉴ಽᨆ䈱⺋Ꮕ䈲㪌㩼⒟ᐲ䈪䈅䈦䈢䋮ᬌ಴น⢻䈭䉧䉴⒳䈲એਅ䈱䈫䈍䉍䈪䈅䉎䋮㩷㩷
GC-14B㧦 DME (CH3OCH3), formic acid (HCOOH), methyl formate (CH3OCHO), CO, CO2,HCHO, CH4, CH3OH, H2O, O2, N2ᣣ┙ 㪇㪉㪊䋺㩷 㪟㫐㪻㫉㫆㪾㪼㫅㩷㩿㪟㪉㪀㩷㩷㪛㪤㪜 ⓨ᳇ᷙว᳇䈱ᵹ㊂䈲ᵹ㊂೙ᓮ䉲䉴䊁䊛㧔Kofloc model-5100㧕䈮䉋䉍Ᏹ᷷䈪 㪋㪋㪅㪉㫄㪣㪆㫄㫀㫅䋬ᒰ㊂Ყ䈲 㪈㪅㪌 䈫䈚䈩ቯ䉄䋬ታ㛎ਛ䈲ᄌൻ䈚䈭䈇䉅䈱䈫䈚䈩ᛒ䈉䋮෻ᔕ▤⸳ቯ᷷ᐲ䈲 㪉㪇㪇䌾㪉㪋㪇㷄䈫䈚䈢䋮੹࿁䈱ታ㛎᧦ઙ䉕ㆊ෰䈮⺞ᩏ䈚䈢㵱㪪㫋㪸㪹㫃㪼㵱㩷 㩿ᧂ⌕Ἣ᧦ઙ㪀෸䈶㵱㪬㫅㫊㫋㪸㪹㫃㪼㵱㩿⌕Ἣ᧦ઙ㪀㗔ၞ 㪈㪀䈮␜䈚䈢䉅䈱䈏 㪝㫀㪾㪅㪉 䈪䈅䉎䋮䉧䉴䈱▤ౝṛ⇐ᤨ㑆䈲䋬⸳ቯ᷷ᐲ 㪉㪉㪎㷄㩿㪌㪇㪇㪢㪀䈪⚂ 㪈㪊㪏⑽䈫䈭䉎䋮㩷 㩷㧙㧙

Reaction temperature [oC]Fig.1 Schematic of experimental apparatusExperimental condition
280
260

Stable240

Unstable

220
200

0.5
11.5
22.5
3
Equivalence ratio of DME-air mixture,IFig.2 Experimental conditions in this research㩷㩷䋳䋮ታ㛎⚿ᨐ㩷䋳䋮䋱㩷 ᚑಽಽᨆ⚿ᨐ㩷㪛㪤㪜 ᷙว᳇䈏⌕Ἣ䈞䈝䋬㉄ൻ෻ᔕ䈏ᤨ㑆⊛䈮቟ቯ䈚䈩ㅴⴕ䈜䉎㩹㪪㫋㪸㪹㫃㪼㩹᧦ઙ䈪䈱↢ᚑ‛䉕䋬㪝㫀㪾㪅㪊㩿⓸⚛䉕㒰䈒૕Ⓧഀว㪀䈮␜䈜䋮䉧䉴䉰䊮䊒䊥䊮䉫૏⟎䈲 㪈㪇㪇㪇㫄㫄 䈪䈅䉎䋮⸳ቯ᷷ᐲ䈏㜞䈇䈾䈬䋬㪛㪤㪜 ᷙว᳇䈱ᶖ⾌ഀว䋬෸䈶෻ᔕ↢ᚑ‛䈱ഀว䈏Ⴧട䈚䈢䋮৻ᣇ䈪 Fig.4 ߪ"Unstable"᧦ઙߢߩ෻ᔕེౝࠟࠬߩᤨ㑆ᄌൻߢ޽ࠆ㧚ߎߩߣ߈ߩ⌕Ἣ๟ᦼߪ⚂ 140 ⑽ߢ޽ࠆ㧚⌕Ἣ⋥ᓟߦߪ᳓߿ CO ╬ߩ෻ᔕ↢ᚑ‛߇▤ౝࠍභ߼ࠆ㧚ߒ߆ߒᤨ㑆⚻ㆊߦ઻޿㧘ߎࠇࠄ↢ᚑ‛ߪᵹ౉ߔࠆ DME ᷙว᳇ߦࠃࠅ᛼ߒ಴ߐࠇࠆ㧚ߘߩ⚿ᨐ㧘▤౉ญ߆ࠄ 500mm ߢߪ㧘⌕Ἣ 120 ⑽ᓟߦߪ DME ᷙว᳇߇ᄙߊࠍභ߼ࠆ㧚ߒ߆ߒ 1000mm ߢߪ㧘DME ᷙว᳇ߩഀวߪ 4 ഀᒝߢ޽ࠅ㧘↢ᚑ‛ߩഀว߇ᄙ޿㧚એ਄߆ࠄ㧘᧦ઙࠍ໧ࠊߕ㧘෻ᔕ▤ౝߦߪ DMEᷙว᳇ߣ㧘⌕Ἣ߽ߒߊߪ㉄ൻߦࠃࠆ෻ᔕ↢ᚑ‛߇౒ሽߔࠆ㗔ၞ߇ሽ࿷ߔࠆߎߣ߇ࠊ߆ࠆ㧚"Stable"ߣ"Unstable"(⌕Ἣ 120 ⑽ᓟ)ߩฦ᧦ઙߢࠟࠬᚑಽࠍᲧセߔࠆߣ㧘"Stable"ߣᲧߴߡ"Unstable"ߢߪ㧘․ߦࠡ㉄ߩභ߼ࠆഀว߇ᄙ޿㧚߹ߚ㧘ਔ᧦ઙࠍㅢߒߡ㧘᷷ᐲߩ਄᣹ߦᓥ޿ࡎ࡞ࡓࠕ࡞࠺ࡅ࠼ߩ↢ᚑ㊂߇Ⴧടߔࠆߎߣ߽ࠊ߆ࠆ㧚ߎࠇߪૐ᷷㉄ൻߦࠃࠅ᦭ኂ↢ᚑ‛߇㧙㧙⊒↢ߔࠆߎߣࠍᗧ๧ߒߡ߅ࠅ㧘DME ߩ೑↪ᕈߣ޿߁⦟޿㕙ߛߌߢߥߊ㧘DME ߩ቟ోᕈ㧔ෂ㒾ᕈ㧕ߦߟ޿ߡࠃࠅ✺ኒߦ⠨߃ߥߌࠇ߫ߥࠄߥ޿ߎߣࠍ␜ߒߡ߅ࠅ㧘቟ోᎿቇߩ┙႐ߢ᦭⋉ߥ⍮⷗ࠍਈ߃ߡ޿ࠆ㧚Fig.3 Gas concentration (vol%) at “Stable” in various temperature conditions(Equivalence Ratio : 1.5, Sampling Point:1000mm from inlet)

Fig.4 The change of gas concentration after ignition at “Unstable” (Temp.:205͠,
Equivalence Ratio:1.5, Interval between Ignition:140sec) Upper:500mm from inlet,Lower:1000mm from inlet㩷㧙㧙䋳䋮䋲㩷 ૐ᷷⌕Ἣ䈱䊜䉦䊆䉵䊛䈮㑐䈜䉎৻⠨㩷਄⸥䈱⚿ᨐ䈮䉋䉏䈳䋬㪛㪤㪜 䈫Ά὾↢ᚑ‛䈏ᷙ࿷䈜䉎䈖䈫䈪ૐ᷷⌕Ἣ䈏㆐ᚑ䈚䉇䈜䈇⁁ᴫ䈏⊒↢䈚䈩䈇䉎䈖䈫䈏䉒䈎䉎䋮ૐ᷷⌕Ἣ䈏䈬䈱䉋䈉䈮䈚䈩䈵䈐䈍䈖䈘䉏䉎䈱䈎䉕ត䉎䈢䉄䋬䈖䈖䈪䈲ᒝ೙⊛䈮౉ญ䉋䉍↢ᚑ‛䈱ਥᚑಽ䉕ᷙ䈟䈩ૐ᷷⌕Ἣ․ᕈ䈏䈬䈱䉋䈉䈮ᄌൻ䈜䉎䈎䉕⺞䈼䉎䈖䈫䈮䈚䈢䋮䈇䉒䈳䇸ታ㛎⊛䈭ᗵᐲ⸃ᨆ䇹䉕䈜䉎䈖䈫䈮ઁ䈭䉌䈭䈇䋮↢ᚑ‛䈱䈉䈤ਥ䈭䉅䈱䈲䊖䊦䊛䉝䊦䊂䊍䊄䈍䉋䈶䉩㉄䋬᳓䈪䈅䉎䈏䋬䊖䊦䊛䉝䊦䊂䊍䊄䈮䈧䈇䈩䈲 㪛㪤㪜 ૐ᷷㉄ൻ෻ᔕㆊ⒟䈮䈍䈇䈩෻ᔕଦㅴ䉕䈘䈞䉎䈱䈮㊀ⷐ䈭 㪦㪟 䊤䉳䉦䊦䉕ᶖ⾌䈚䈩 㪛㪤㪜 ಽ⸃䉕ᅹ䈕䉎ᣇะ䈮௛䈒䈖䈫䈏⍮䉌䉏䈩䈇䉎 㪉㪀䋮䉩㉄䈮䈧䈇䈩䉅ห᭽䈮 㪦㪟 䉕ᶖ⾌䈜䉎⚻〝䈏ਥ䈫䈘䉏䈩䈇䉎䈏䋬ᶖ⾌䈘䉏䈢 㪦㪟 䊤䉳䉦䊦䈲 㪟㪦㪉 䊤䉳䉦䊦䈻䈫ᒻ䉕ᄌ䈋䋬䈠䉏䈏 㪟 䉕ข䉍ㄟ䉃䈖䈫䈪 㪟㪉㪦㪉 䈫䈭䉍䋬㪉㪦㪟 䈻䈫῜⊒⊛䈭 㪦㪟 䊤䉳䉦䊦Ⴧട䉕䉅䈢䉌䈜䈫䈇䈉น⢻ᕈ䉅䈅䉎䋮ᓥ䈦䈩䋬䈖䈖䈪䈲䉩㉄䈱ᓇ㗀䈮⌕⋡䈚䈩ૐ᷷⌕Ἣ․ᕈ䈏䈬䈱䉋䈉䈮ᔕ╵䈜䉎䈱䈎䉕⺞䈼䉎䋮㩷䉩㉄䈲䊋䊑䊥䊮䉫䈮䉋䉍䉩㉄᳓ṁᶧ䈫䈚䈩౉ญ஥䉋䉍ᷝട䈜䉎䋮ⵝ⟎䈮䈠䈱ㇱಽ䉕ㅊട䈚䈩䈖䉏䉕ታ⃻䈜䉎䋨㪝㫀㪾㪃㪌 ෳᾖ䋩䋮ᷝട᧦ઙ䉕 Table1 䈮䉁䈫䉄䉎䋮㩷㩷

Fig.5

㩷

revised experimental setup㩷

Table1 Amount of additives under each condition (Unit : vol.%)
Condition
WF1 WF2 WF3 WF4 WF5Water Solution of Formic Acid

Water

1.72

2.21

3.24

4.69

6.74

Formic Acid

1.42

1.82

2.15

2.80

3.15

㩷㪝㫀㪾㪅㪍 䈮䋬䉩㉄᳓ṁᶧ䈱ᷝട㊂䈮ኻ䈜䉎⌕Ἣ䈱นุ䉕␜䈜䋮䂾䈪䈲๟ᦼ⊛䈭⌕Ἣ䈏䉂䉌䉏䈢䋮䂦䈪䈲๟ᦼ⊛䈭⌕Ἣ䈲⷗䉌䉏䈝䋬⌕Ἣ䈏ᢔ⊒⊛䈮↢䈛䈢䋮㪝㫀㪾㪅㪎 䈮䋬䉩㉄᳓ṁᶧᷝടᤨ䈮䈍䈔䉎ૐ᷷⥄Ꮖ⌕Ἣ᷷ᐲ䈱ᦨᄢ୯䈫ᦨዊ୯䉕␜䈜䋮㪮㪝㪌 䈱᧦ઙ䉕㒰䈐䋬ᷝട㊂䈱Ⴧട䈮䉋䉍ᦨዊ୯䈲਄᣹䋬ᦨᄢ୯䈲ᮮ䈳䈇䈫䈭䉎䋮䉩㉄᳓ṁᶧ䈱ᷝട㊂䉕Ⴧട䈘䈞䉎䈫䋬⌕Ἣน⢻䈭᷷ᐲ▸࿐䈏⁜䈒䈭䉎䈖䈫䈎䉌䋬⥄Ꮖ⌕Ἣ䈏ᅹ䈕䉌䉏䉎௑ะ䈮޽ࠆߣ⸒߃ࠆ㧚৻ᣇ㧘WF5 ᧦ઙߢߪ㧘⌕Ἣ᷷ᐲߩਅ㒢୯߇ૐਅߒ㧘⌕Ἣ᷷ᐲၞߩ᜛ᄢ߇⷗ࠄࠇߚ㧚ߎࠇߪ㧘⥄Ꮖ⌕Ἣ߇ଦㅴߐࠇߡ޿ࠆ߽ߩߣ⠨߃ࠄࠇࠆ㧚߹ߚ㧘ห᧦ઙߢߪ㧘⌕Ἣߦ࿃ࠆᕆỗߥ᷷ᐲ਄᣹ߩ⋥೨ߦ㧘㧙㧙

1͠೨ᓟߩ᷷ᐲ਄᣹߇ᄙᢙ⷗ࠄࠇߚ㧚ߎߩᤨߩ᷷ᐲጁᱧࠍ Fig.8 ߦ␜ߔ㧚ߎࠇߪ㧘▤ౝߩ෻ᔕߩ⁁ᴫ߇޽ࠆ⒟ᐲਇ቟ቯߥ㧘߽ߒߊߪ෻ᔕᕈߩ㜞޿⁁ᘒߦ޽ࠆߚ߼ߣᕁࠊࠇࠆ㧚㩷㩷٤: ignite periodically ٌ : ignite occasionallyFig.6 Low-temperature autoignition map with addition of water and water solutionof formic acidFig.7 Ignitable temperature region with addition of water solution of formic acid㩷
Fig.8 Time-sequence of temperature in reactor (right figure is magnified the leftone); set temp.: 216͠, mixture: WF5 (for detail of WF5, see Table 1㩷㩷㪝㫀㪾㪅㪐 䈮⌕Ἣ⋥೨䈪䈱▤ౝ䉧䉴䈱ಽᨆ⚿ᨐ䉕␜䈜䋮⌕Ἣ䈏๟ᦼ⊛䈮⿠䈐䉎 㪮㪝㪈 ᧦ઙ䉋䉍䉅䋬ᢔ⊒⊛䈭⌕Ἣ䈱⿠䈐䉎 㪮㪝㪋 ᧦ઙ䈱ᣇ䈏᳓⚛䋬䉩㉄䋬䉩㉄䊜䉼䊦䈫䈇䈦䈢ᚑಽ䈏ዋ䈭䈇䋮䈖䉏䉋䉍䋬㪮㪝㪋 ᧦ઙ䈪䈲㉄ൻ෻ᔕ䈏䈅䉁䉍ㅴⴕ䈚䈩䈇䈭䈇䈫⠨䈋䉌䉏䉎䋮䈚䈎䈚䈭䈏䉌䋬㪮㪝㪌 ᧦ઙ䈪㧙㧙䈲৻ォ䈚䈩䋬᳓⚛䉇৻㉄ൻ὇⚛䈱↢ᚑ㊂䈏Ⴧട䈜䉎䋮䉁䈢 㪮㪝㪌 ᧦ઙ䈪䈱䉂䋬ᓸ㊂䈭䈏䉌䊜䉺䊮䈱↢ᚑ䈏⏕⹺䈘䉏䈢䋮⪺⠪䉌䈱ㆊ෰䈱ታ㛎䈪䈲䋬䊜䉺䊮䈲䈾䈫䉖䈬↢ᚑ䈚䈩䈍䉌䈝䋬䈖䈱᧦ઙ䈮․᦭䈱䉅䈱䈫⠨䈋䉌䉏䉎䋮㩷Fig.9 Gas concentration before ignition with addition of water solution of formic
acid at the lowest temperature of ignitable region㩷㩷㩷䋴䋮ૐ᷷⌕Ἣ䊜䉦䊆䉵䊛䈮㑐䈜䉎⠨ኤ䈍䉋䈶੹ᓟ䈱⺖㗴㩷એ਄䈱⚿ᨐ䉕ర䈮䋬ૐ᷷㉄ൻ䊜䉦䊆䉵䊛䋬ਥ䈮ૐ᷷䈪䈱⥄⊒⌕Ἣ䈻⥋䉎⚻〝䈮䈧䈇䈩⠨ኤ䉕ട䈋䉎䋮᣿䉌䈎䈮䉩㉄䈮䉋䉎ᓇ㗀䈲ήⷞ䈪䈐䈝䋬䈖䉏䈏ૐ᷷㉄ൻ෻ᔕ䈱ടㅦ䉕ଦ䈚䈋䉎䈫䈇䈉ⷞὐ䈪⠨䈋䉎䈫䋬એਅ䈱䉋䈉䈭⠨ኤ䈏น⢻䈪䈅䉐䈉䋮䈭䈍䋬㪚㫌㫉㫉㪸㫅 䉌䈮䉋䉎 㪛㫀㫄㪼㫋㪿㫐㫃㩷 㪜㫋㪿㪼㫉㩷㪉㪇㪇㪇㩿㪛㪤㪜㪄㪉㪇㪇㪇㪀㪊㪀䈲䋬㪛㪤㪜 ㉄ൻ෻ᔕ䈱⚛෻ᔕ䊝䊂䊦䈱৻䈧䈪䈅䉍䋬ା㗬ᕈ䈱㜞䈇䊝䊂䊦䈫䈚䈩⠨䈋䉌䉏䈩䈇䉎䋮䈚䈎䈚䋬㪛㪤㪜㪄㪉㪇㪇㪇 䈱ㆡว᧦ઙ䈲䋬ᧄታ㛎᧦ઙ䉋䉍䉅㜞᷷䈪䈅䉎䋮䈠䈖䈪ෳ⠨䉁䈪䈮䋬㜞᷷㉄ൻ෻ᔕ႐䈮䈍䈔䉎䉩㉄䈱௛߈ࠍ⺞ߴࠆ㧚㪛㪤㪜㪄㪉㪇㪇㪇 䈪䈲䋬䉩㉄䈏㑐ଥ䈜䉎⚛෻ᔕᑼ䈲 㪈㪍 ᧄ䈅䉎䋮䈠䈱䈉䈤䋬ㅦᐲቯᢙ䈏ᄢ䈐䈒䊤䉳䉦䊦↢ᚑ䈮ነਈ䈜䉎䉅䈱䈲ᰴ䈱 㪎 ᧄ䈫⠨䈋䉌䉏䉎䋮ᑼ䈱೨䈱ᢙሼ䈲 㪛㪤㪜㪄㪉㪇㪇㪇 䈪૶䉒䉏䈩䈇䉎㩷෻ᔕᑼ䈱⇟ภ䈮⋧ᒰ䈜䉎䋮㩷㩷333334335
336337338
339

HCOOH + OH = H2O + CO2 + H
HCOOH + OH = H2O + CO + OH
HCOOH + H = H2 + CO2 + H
HCOOH + H = H2 + CO + OH
HCOOH + CH3 = CH4 + CO + OH
HCOOH + HO2 = H2O2 + CO + OH
HCOOH + O = CO + OH + OH㩷㧙㧙․䈮 㪊㪊㪐 ᑼ䈲䋬䊤䉳䉦䊦䈱↢ᚑ䈮ᄢ䈐䈭ᓎഀ䉕ᨐ䈢䈜䉅䈱䈫ᕁ䉒䉏䉎䋮䉁䈢䋬㪊㪊㪎 ᑼ䈮䉋䉍䊜䉺䊮䈏↢ᚑ䈘䉏䉎䈖䈫䋬෸䈶ઁ䈱ᑼ䈎䉌᳓⚛䉇৻㉄ൻ὇⚛䈏↢ᚑ䈜䉎䈖䈫䈏䉒䈎䉎䋮䉋䈦䈩䋬䉩㉄䈱ᷝട䈮䉋䉍䊤䉳䉦䊦䈏↢ᚑ䈘䉏䉎䈫౒䈮䋬䈖䉏䉌䈱↢ᚑ‛䈏↢䈛䉎䉅䈱䈫⠨䈋䉌䉏䉎䋮৻ᣇ䋬䉩㉄䈏䊤䉳䉦䊦䈱ᶖ⾌䈮㑐䉒䉎⚛෻ᔕᑼ䈲ᰴᑼ䈪䈅䉎䋮㩷㩷
308

HOCH2O = HCOOH + OH㩷䈖䈱 㪊㪇㪏 ᑼ䈲䋬䊃䊷䉺䊦䈪䈲ㅒ෻ᔕ䈏ㅴ䉃䉅䈱䈱䋬㗅ᣇะ䈱෻ᔕㅦᐲቯᢙ䉅ᄢ䈐䈇䈢䉄䋬䊤䉳䉦䊦ᶖ⾌䈮ኻ䈜䉎ነਈᐲ䈲ዊ䈘䈇䋮એ਄䈎䉌䋬䉩㉄䈱ᷝട䈏䊤䉳䉦䊦䈱ଏ⛎䈮ነਈ䈚䈩䈇䉎䈫⠨䈋䉎䈖䈫䈏䈪䈐䉎䋮䉅䈚䋬䈖䉏䉌䈱෻ᔕ䈱ㅦᐲቯᢙ䈏ૐ᷷႐䈪䉅ㆡ↪䈪䈐䉎䈭䉌䈳䋬䉩㉄䈱ᷝട䈏⌕Ἣ᷷ᐲ䈱ਅ㒢୯䈱ૐਅ䈮䈧䈭䈏䈦䈩䈇䉎䈫⠨䈋䉎䈖䈫䈏䈪䈐䉎䋮䉋䈦䈩䋬੹ᓟ䈲䈖䈱઒ቯ䈮䈧䈇䈩䈱ᬌ⸽䈏ᔅⷐ䈪䈅䉎䋮㩷৻ᣇߢ⌕Ἣߦኻߔࠆ᳓ߩൻቇ⊛ലᨐߦߟ޿ߡߪ㧘Seiser ࠄߦࠃࠅ⎇ⓥ߇ߥߐࠇߡ߅  ࠅ 4)㧘ߎࠇߦࠃࠆߣ㧘᳓ߩ╙ਃ૕ߣߒߡߩലᨐߦࠃࠅ⌕Ἣߒߦߊߊߥࠆߣߐࠇࠆ㧚߹ߚ㧘᳓⚛㧘৻㉄ൻ὇⚛ 5)߅ࠃ߮ࡔ࠲ࡁ࡯࡞ 6)ߩᷝടߪ㧘DME ߩ⌕Ἣߦኻߒߡᛥ೙ߔࠆ௛߈߇޽ࠆ㧚એ਄ߩߎߣ߆ࠄ㧘WF5 ᧦ઙߢߩ⌕Ἣ᷷ᐲၞߩ᜛ᄢߪ㧘ࠡ㉄ߩലᨐߦࠃࠆน⢻ᕈ߇޽ࠆ㧚ࠡ㉄߇ૐ᷷㉄ൻ෻ᔕߢ㊀ⷐߢ޽ࠆߎߣߪ㧘Curran ࠄߩ DME-2000 ࠍ಴ߔࠆߣ߈ߦ

⹺⼂ߐࠇߡ߅ࠅ㧘ᓥ᧪ߪࠡ㉄ߩ㑐ଥߔࠆ෻ᔕᑼ߇ߥ߆ߞߚ߽ߩࠍࠊߑࠊߑㅊടߒߡታ㛎୯ߦࡈࠖ࠶࠻ߐߖࠆࠃ߁෻ᔕࡕ࠺࡞࠮࠶࠻ࠍౣᐲ⺞ᢛߒߥ߅ߒߚߣ޿߁⚻✲߇޽ࠆ㧚ߒ߆ߒߥ߇ࠄ㧘ᓟߩ⎇ⓥߦࠃࠅ㧘ߎߩୃᱜࠍട߃ࠆߣ HO2 ߩỚᐲ߇ว⥌ߒߥ޿㧔ㆊዊ⹏ଔߔࠆ㧕ߣߩႎ๔߇޽ࠅ㧘HO2 ⚻〝ߦߟ޿ߡ೎⚻〝ࠍ⠨߃ߥߌࠇ߫ߥࠄߥ޿ߣߩ⚿ᨐ߇಴ߐࠇߡ޿ࠆ㧚ߎࠇࠍ⠨ᘦߔࠆߣ㧘DME-2000 ߢ⠨ᘦߐࠇߡ޿ࠆࠡ㉄㉄ൻ෻ᔕࡕ࠺࡞♖ᐲ߇ᖡߊ㧘ߎࠇ߇ᄙߊߩ HO2 ࠍ߽ߚࠄߔࠃ߁ߦᡷༀࠍߔࠇ߫㧘ోߡߩ໧㗴߇⸃᳿ߔࠆࠃ߁ߦ߽⷗߃ࠆ㧚߽ߜࠈࠎ੐ߪߎࠇ߶ߤන⚐ߢߪߥ߆ࠈ߁߇㧘ᧄታ㛎ᚑᨐߪᣢሽߩ෻ᔕࡕ࠺࡞ߩਇ⿷ಽ߇ߤߎߥߩ߆ࠍᜰ៰ߔࠆ᦭⋉ߥ⍮⷗ߣߒߡ⹏ଔߢ߈ࠃ߁㧚੹ᓟߪߎߩㇱಽߦߟ޿ߡ෻ᔕ⺰⊛┙႐ࠍ⠨ᘦߒߡߟ߼ߡࠁ߈ߚ޿㧚ᧄ⎇ⓥᚑᨐߪ࿖ౝᄖߩቇળߢ⊒⴫ߒߡ޿ࠆ߇㧘ฦ㑐ㅪ⎇ⓥ⠪߆ࠄߪ৻ቯߩା㗬ࠍᓧߡ⹏ଔߐࠇߡ޿ࠆ㧚ൻቇ෻ᔕߩኾ㐷ኅߣߩᗧ⷗੤឵߽㗫❥ߦߒߡ߅ࠅ㧘ߘߩਛ߆ࠄ෻ᔕ⚻〝ߩ⸃᣿ߦ㑐ߔࠆ᦭⋉ߥࠕ࠼ࡃࠗࠬࠍᓧࠆߎߣ߽ߢ߈ߚ㧚ౕ૕⊛ߦߪ㧘޽ߣᔅⷐߣߥࠆ⏕⸽ታ㛎ߦߟ޿ߡߪ㧘GC ߩࠃ߁ߥᚻᴺߢߪߥߊਛ㑆↢ᚑ‛ࠍណขߢ߈ࠆ in-situ ߩ⸘᷹ᴺࠍዉ౉ߔࠆߎߣࠍ൘߼ࠄࠇߡ޿ࠆ㧚⃻࿷㧘ߘߩࠃ߁ߥⵝ⟎ࠍᄙߊᚲ᦭ߔࠆ Purdueᄢቇ㧔☨࿖㧕ߩࠧࠕᢎ᝼㧘⌕Ἣએ㒠ߩ⃻⽎⸃᣿㧔ਥߦࡎ࡞ࡓࠕ࡞࠺ࡅ࠼ߩ↢ᚑㆊ⒟ߩ⸃
᣿㧕ߦߟ޿ߡਛ࿖⑼ቇ㒮ߩ⿬ᢎ᝼ߣߩ౒ห⎇ⓥߣߒߡផㅴߔࠆߎߣ߇୘ੱ࡟ࡌ࡞ߢวᗧ
ࠍᓧߡ߅ࠅ㧘੹ᓟߩ⎇ⓥߩ⊒ዷࠍ࿖ᄖߦ߽ᐢߍߡዷ㐿ߒߡࠁ߈ߚ޿㧚․ߦࠧࠕᢎ᝼߆ࠄ

㧙㧙ߪ DME ߆ࠄ᳓⚛ࠍขࠅ಴ߔࠪࠬ࠹ࡓߦ㑐ߔࠆදജࠍᓧࠆߎߣ߽᳿߹ߞߡ޿ࠆߚ߼㧘੹ᓟߩࡊࡠ࠻࠲ࠗࡊߩ૞ᚑ㧘ᕈ⢻⹏ଔߥߤߩౕ૕⊛ߥ㐿⊒⎇ⓥߦߟ޿ߡ߽ㅴ߼ߡࠁ߈ߚ޿㧚㩷㩷╩ᧃ䈫䈭䉍䉁䈚䈢䈏䋬ᧄ⎇ⓥ䈱ㆀⴕ䈮ᡰេ䈇䈢䈣䈐䉁䈚䈢 㪡㪝㪜㪉㪈 ਎♿⽷࿅䈮ᡷ䉄䈩ᗵ⻢↳䈚਄䈕䉁䈜䋮㩷㩷㩷⊒⴫ታ❣৻ⷩ㩷xႦਛᄢ੺䋬ਛ᧛␭ੑ䋬દ᧲ᒄⴕ䋬"DME ⓨ᳇ᷙว᳇䈱ૐ᷷⌕Ἣ䈮ኻ䈜䉎ᷝട‛䈱ᓇ㗀䋨 Influence of Additive Species for Autoignition of DME-Air mixture atLow-Temperature䋩"䋬╙ 47 ࿁Ά὾䉲䊮䊘䉳䉡䊛⻠Ṷ⺰ᢥ㓸䋬ᧅᏻ䋨2009.12䋩.

xNakamura, Y., Tsukanaka, D., Ito, H., and Sagawa, S., "Autoignition Mechanismof DME-Air Mixture at Low Temperature (<500K) under AtmosphericPressure",Proc. 6th Asian DME Conference, Seoul, Korea (2009.9), pp.347-357

xႦਛᄢ੺䋬ਛ᧛␭ੑ䋬દ᧲ᒄⴕ䋬"DME 䈱ૐ᷷⌕Ἣ䊜䉦䊆䉵䊛䈮㑐䈜䉎ታ㛎⊛ᬌ⸛"䋬╙18 ࿁ᣣᧄ䉣䊈䊦䉩䊷ቇળో࿖ᄢળ⻠Ṷ⺰ᢥ㓸䋬ᧅᏻ (2009.7)䋬pp.324-325.

ෳ⠨ᢥ₂1) ૒Ꮉ⍍ᄢ,ਛ᧛␭ੑ, દ᧲ᒄⴕ,╙ 45 ࿁Ά὾ࠪࡦࡐࠫ࠙ࡓ⻠Ṷ⺰ᢥ㓸, 334-335(2007).
2) ਃᧁஜᄥ㇢, ☨ጊ૫ਯ, ㊄㊁ḩ, ᣣᧄᯏ᪾ቇળ 2004 ᐕᐲᐕᰴᄢળ⻠Ṷ⺰ᢥ㓸,2004(7), 203-204 (2004).
3) S.L. Fischer, F.L. Dryer, H.J. Curran, Int. J. Chem. Kinet. 32: 713-740 (2000).
4) R. Seiser, K. Seshadri, Proc. Combust. Inst. 30: 407-414 (2005).
5) T. Shudo, H. Yamada, International Journal of Hydrogen Energy 32: 3066-3072(2007).
6) ጊ↰⵨ਯ, ᧲㊁ቇ, ᚻፒⴐ, ᯏ⺰ 70(697)B: 2455-2461(2004)㧙㧙