JP6202371B2 - 二酸化炭素の再資源化方法 - Google Patents
二酸化炭素の再資源化方法 Download PDFInfo
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 220
- 239000001569 carbon dioxide Substances 0.000 title claims description 109
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 109
- 238000000034 method Methods 0.000 title claims description 47
- 238000004064 recycling Methods 0.000 title claims description 31
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 102
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 55
- 239000001257 hydrogen Substances 0.000 claims description 53
- 229910052739 hydrogen Inorganic materials 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- 239000011259 mixed solution Substances 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 32
- 239000007789 gas Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000013535 sea water Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000000696 methanogenic effect Effects 0.000 description 6
- 238000006479 redox reaction Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241000203353 Methanococcus Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910021646 siderite Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001074903 Methanobacteria Species 0.000 description 1
- 241001074893 Methanococci Species 0.000 description 1
- 241000274223 Methanomicrobia Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000013028 medium composition Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/08—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
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- C02F1/00—Treatment of water, waste water, or sewage
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Description
CO2+8H++8e−→CH4+2H2O・・・式(1)
2H++2e−→H2・・・式(2)
CO2+4H2→CH4+2H2O・・・式(3)
(数1)
Fe→Fe2++2e− (I)
(数2)
2H++2e−→H2 (II)
(数3)
CO2+4H2→CH4+2H2O (III)
図1は、二酸化炭素再資源化プラントの一実施形態を示す模式図である。図1に示す二酸化炭素再資源化プラント100は、液状の二酸化炭素と嫌気水とを混合するミキサー11と、ミキサー11を通して供給される混合液の流路に配置された金属カラム12と、金属カラム12を通過し、水素を含む上記混合液をメタン生成菌により資化してメタンを生成するメタン生成リアクター13と、を備える。金属カラム12には、水素よりイオン化傾向の大きい金属が充填されている。
地球温暖化対策のため、人為的二酸化炭素の大気への排出を減らす方法として、二酸化炭素を液化して回収し、海水とともに地下へ圧送し、地下に貯留・隔離することが効果的な方法の一つとされている(CCS法)。また、二酸化炭素を地下に貯留するだけでは、エネルギーを消費するのみで利益が得られないため、貯留した二酸化炭素を地下に生息するメタン生成菌によってメタンに変換させ、リサイクルする手法が提案されている。
油田に残存する石油の回収率を増加する技術として、三次回収法(Enhanced Oil Recovery)が注目されている。三次回収法の一つに、炭酸ガス圧入攻法(CO2−EOR法)がある。CO2−EOR法は、圧入井より油層に気体又は水に溶解させた二酸化炭素を圧入する方法である。
図3は、本試験で用いた高圧培養リアクターを説明する模式図である。図4は、本試験で用いた反応カラムを説明する模式図である。
図5に、高圧培養試験における水素濃度(a)、メタン濃度(b)及び全炭酸濃度(c)の時間変化を示す。ここでいう濃度は、混合液中の溶存ガス濃度を意味する。
Claims (6)
- 水素よりイオン化傾向の大きい金属を、嫌気水及び液状の二酸化炭素を含む混合液中に配置するステップと、
前記金属の酸化により水素を発生させるステップと、
発生させた水素を前記混合液と共にメタン生成菌に供給し、二酸化炭素をメタンに変換するステップと、を含む、二酸化炭素の再資源化方法。 - 前記金属が鉄(Fe)又はニッケル(Ni)である、請求項1に記載の再資源化方法。
- 二酸化炭素分離回収・貯留法(Carbon Dioxide Capture and Storage)、又は炭酸ガス圧入攻法(CO2−Enhanced Oil Recovery)において用いられる、請求項1又は2に記載の再資源化方法。
- 前記嫌気水が電解質を含む、請求項1〜3のいずれか一項に記載の再資源化方法。
- 前記金属がカラムに充填されている、請求項1〜4のいずれか一項に記載の再資源化方法。
- 発生させた水素を前記混合液のフローにより移送するステップを更に含む、請求項1〜5のいずれか一項に記載の再資源化方法。
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JP2023035402A (ja) * | 2021-09-01 | 2023-03-13 | 国立研究開発法人海洋研究開発機構 | バイオリアクター、及び二酸化炭素の再資源化システム |
JP7284551B1 (ja) * | 2023-03-14 | 2023-05-31 | 日本協同エネルギー株式会社 | 六フッ化硫黄ガスの貯留構造及び貯留方法 |
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KR20200085633A (ko) * | 2019-01-07 | 2020-07-15 | 고려대학교 세종산학협력단 | 고순도 메탄 생산 시스템 및 그를 이용한 고순도 메탄 생산 방법 |
KR102184266B1 (ko) * | 2019-01-07 | 2020-11-30 | 고려대학교 세종산학협력단 | 고순도 메탄 생산 시스템 및 그를 이용한 고순도 메탄 생산 방법 |
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