JP7076113B2 - 蟻酸生成方法及び蟻酸生成システム - Google Patents
蟻酸生成方法及び蟻酸生成システム Download PDFInfo
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- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 title claims description 247
- 235000019253 formic acid Nutrition 0.000 title claims description 125
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 title claims description 122
- 238000004519 manufacturing process Methods 0.000 title claims description 73
- 239000000126 substance Substances 0.000 claims description 40
- 238000006243 chemical reaction Methods 0.000 claims description 36
- 229910044991 metal oxide Inorganic materials 0.000 claims description 31
- 150000004706 metal oxides Chemical class 0.000 claims description 31
- 239000011259 mixed solution Substances 0.000 claims description 30
- 238000004577 artificial photosynthesis Methods 0.000 claims description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 23
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 230000001699 photocatalysis Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 2
- 239000000975 dye Substances 0.000 description 43
- 239000001257 hydrogen Substances 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 239000008103 glucose Substances 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 229930002877 anthocyanin Natural products 0.000 description 8
- 235000010208 anthocyanin Nutrition 0.000 description 8
- 239000004410 anthocyanin Substances 0.000 description 8
- 150000004636 anthocyanins Chemical class 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001056 green pigment Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000011941 photocatalyst Substances 0.000 description 7
- 239000000049 pigment Substances 0.000 description 7
- 239000010419 fine particle Substances 0.000 description 5
- 239000001046 green dye Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- -1 hydrogen ions Chemical class 0.000 description 4
- FIKAKWIAUPDISJ-UHFFFAOYSA-L paraquat dichloride Chemical compound [Cl-].[Cl-].C1=C[N+](C)=CC=C1C1=CC=[N+](C)C=C1 FIKAKWIAUPDISJ-UHFFFAOYSA-L 0.000 description 4
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 235000013379 molasses Nutrition 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000008121 dextrose Substances 0.000 description 2
- 150000002016 disaccharides Chemical class 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 150000002772 monosaccharides Chemical class 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
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- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
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- 241000219310 Beta vulgaris subsp. vulgaris Species 0.000 description 1
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 1
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 1
- GUBGYTABKSRVRQ-CUHNMECISA-N D-Cellobiose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-CUHNMECISA-N 0.000 description 1
- 101710088194 Dehydrogenase Proteins 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- RZSYLLSAWYUBPE-UHFFFAOYSA-L Fast green FCF Chemical compound [Na+].[Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C(=CC(O)=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 RZSYLLSAWYUBPE-UHFFFAOYSA-L 0.000 description 1
- 240000001972 Gardenia jasminoides Species 0.000 description 1
- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 235000021536 Sugar beet Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229930003270 Vitamin B Natural products 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000005515 coenzyme Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229960000367 inositol Drugs 0.000 description 1
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- SQFDQLBYJKFDDO-UHFFFAOYSA-K merbromin Chemical compound [Na+].[Na+].C=12C=C(Br)C(=O)C=C2OC=2C([Hg]O)=C([O-])C(Br)=CC=2C=1C1=CC=CC=C1C([O-])=O SQFDQLBYJKFDDO-UHFFFAOYSA-K 0.000 description 1
- 229940008716 mercurochrome Drugs 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
- 239000011720 vitamin B Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/295—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with inorganic bases, e.g. by alkali fusion
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/127—Sunlight; Visible light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
- B01J8/065—Feeding reactive fluids
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0873—Materials to be treated
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- Health & Medical Sciences (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Description
2H2O→O2+4H++4e- ・・・(1)
CO2+2H++2e-→HCOOH ・・・(2)
有機物質+2H++2e-→HCOOH ・・・(3)
1.撹拌することは必須ではないが、高効率のためには、人工光合成に必要な材料がポンプ等を利用して溶液中を撹拌されながら動く方法が考えられ、その場合は、均一に太陽光が当たり、効率が高い。
2.従来の人工光合成反応装置は、ケースに入っているので、広大な面積での敷設やメンテナンスは容易ではなかったが、本発明の一態様では、太陽光のもとで、人工光合成材料を溶液として、例えば透明なホースに入れて流すだけなので、広い面積であっても、ホースを延長するだけで良く、敷設が格段に容易である。
3.発生した蟻酸の回収も、人工光合成材料の補充も、全て特定の箇所で可能となる。
4.全ての材料を単に投入補給することによって、人工光合成装置として半永久的に稼働できる。
酸化チタン粉末と、色素としてアントシアニンBを用い、二酸化炭素の供給を全く行わずに、可視光を照射して時間経過による蟻酸生成量を測定した。結果を図5に示す。
二酸化炭素の供給を全く行わずに、色素と、色素のない有機物との間で蟻酸生成量を測定した。ブドウ糖のみ、緑色素(試薬名:Fast Green)のみ、ブドウ糖+緑色素の3パターンで測定した結果を図6に示す。
二酸化炭素の供給を全く行わない実験条件で、蟻酸生成システムにおける人工光合成法の耐久性について調べた。使用した酸化チタン2gに対して、アントシアニンBの総投入量は0.86gであった。酸化チタンを追加することなく、材料となる色素であるアントシアニンBだけを毎日追加することで、6日間の光照射(HID)による蟻酸生成を実施した。結果を図7に示す。
グルコース(ブドウ糖)と色素(緑色素)と酸化チタンの組み合わせによる混合溶液において、色素(緑色素)と酸化チタンの濃度をそれぞれ変化させて蟻酸生成速度を測定した。結果を図8に示す。
グルコースのみ、グルコース+緑色素+炭素パウダー、グルコース+炭素パウダーのみの3種類を用いた場合の、生成する蟻酸濃度の経時変化を測定した。結果を図9に示す。
色素(緑色素)を用いた場合と、炭素パウダー(活性炭)を用いた場合に、光源(白色光、紫外光)を変えた時の蟻酸生成速度の波長依存性を調べた。なお、紫外光は酸化チタンの吸収光である365nmである。色素(緑色素)を用いた場合の結果を図10に、炭素パウダー(活性炭)を用いた場合の結果を図11に示す。
Claims (8)
- 有機物質を含む溶液と光触媒機能を有する金属酸化物粉末を混合する工程と、
前記有機物質と前記金属酸化物粉末の混合溶液に対して太陽光又は光を照射して反応させる工程と、
反応後の前記混合溶液から蟻酸を回収する工程
を有し、
前記混合溶液は炭素パウダーを含むことを特徴とする蟻酸生成方法。 - 前記金属酸化物粉末は、酸化チタン又は酸化亜鉛であることを特徴とする請求項1に記載の蟻酸生成方法。
- 前記有機物質は色素を含むことを特徴とする請求項1又は請求項2に記載の蟻酸生成方法。
- 前記混合溶液中に、金属酸化物粉末濃度が8~18%、色素濃度が0.02~0.11%で含まれていることを特徴とする請求項1乃至請求項3のいずれか1項に記載の蟻酸生成方法。
- 前記有機物質は植物由来のものを含むことを特徴とする請求項1乃至請求項4のいずれか1項に記載の蟻酸生成方法。
- 前記混合溶液を循環させ、
該混合溶液に太陽光を照射することによって蟻酸の生成反応を行うことを特徴とする請求項1乃至請求項5のいずれか1項に記載の蟻酸生成方法。 - 有機物質を含む溶液と光触媒機能を有する金属酸化物粉末を投入する原料投入部と、
前記有機物質と前記金属酸化物粉末の混合溶液に対して太陽光又は光を照射して反応させる人工光合成反応部と、
反応後の前記混合溶液から蟻酸を回収する蟻酸回収部
を備え、
前記混合溶液は炭素パウダーを含むことを特徴とする蟻酸生成システム。 - 前記人工光合成反応部は、光を透過するチューブ状ないし任意形状の筒状の部材であって、建物の屋根又は屋上に敷設され、
前記混合溶液を前記部材内で循環させることにより前記人工光合成反応を行うことを特徴とする請求項7に記載の蟻酸生成システム。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000202303A (ja) | 1999-01-18 | 2000-07-25 | Natl Inst For Res In Inorg Mater | ホ―ランダイト型光触媒および該触媒を用いた水中のフェノ―ル除去方法 |
JP2002079275A (ja) | 2000-09-08 | 2002-03-19 | Matsushita Electric Ind Co Ltd | 浄水装置 |
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