JP2008248837A - 地熱発電方法並びにシステム - Google Patents
地熱発電方法並びにシステム Download PDFInfo
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- JP2008248837A JP2008248837A JP2007092832A JP2007092832A JP2008248837A JP 2008248837 A JP2008248837 A JP 2008248837A JP 2007092832 A JP2007092832 A JP 2007092832A JP 2007092832 A JP2007092832 A JP 2007092832A JP 2008248837 A JP2008248837 A JP 2008248837A
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- 238000010248 power generation Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 196
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 98
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 98
- 239000011435 rock Substances 0.000 claims abstract description 70
- 238000002347 injection Methods 0.000 claims abstract description 69
- 239000007924 injection Substances 0.000 claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
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- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 72
- 238000003860 storage Methods 0.000 abstract description 12
- 238000011084 recovery Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract 4
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- 239000007789 gas Substances 0.000 description 48
- 230000015572 biosynthetic process Effects 0.000 description 23
- 238000005755 formation reaction Methods 0.000 description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
【解決手段】高温岩体地盤に掘削された注入井1a及び生産井1bと、注入井1aに熱伝達媒体としての水を注入する高圧ポンプ3と、注入井1aに熱伝達媒体としての二酸化炭素を含むガス10を注入するガスコンプレッサー4と、高温岩体地盤の熱によって加熱され生産井1bから回収される熱伝達媒体を熱水と蒸気とに分離するセパレータ5と、セパレータ5によって分離された蒸気を用いて発電を行う発電機6とを有し、セパレータ5によって分離された熱水を注入井1aから高温岩体地盤に再度注入するようにした。
【選択図】図1
Description
本発明では、高温岩体発電を行う地域の地層2の地熱貯留層14に複数の坑井1a,1bを掘削する。ここで、本発明は二酸化炭素を利用して高温岩体発電を行うものであるので、石炭火力発電所やセメント工場等の二酸化炭素の大規模排出源の近傍に坑井を掘削し、二酸化炭素の大規模排出源から排出される二酸化炭素を用いることが好ましい。
本実施形態では、熱伝達媒体として、水11と、二酸化炭素排出源8から排出される二酸化炭素を含むガス10とを用いる。
注入井1aを通って地下の高温岩体地盤に注入されたガス10に含まれる二酸化炭素の一部は高温岩体地盤の割れ目を流動しながら地熱貯留層14を形成する。なお、ガス10に含まれる二酸化炭素は、地熱貯留層14内では超臨界状態若しくは水に溶けた状態(HCO3 −やH2CO3やCO3 2−)で存在する。
(化2)H2CO3→H++HCO3 −
(化3)CaAl2Si2O8+H++HCO3 −+H2O
→CaCO3+Al2Si2O5(OH)4
注入井1aから熱伝達媒体として注入される水11は、地熱貯留層14の高温岩体地盤の割れ目を通る間に岩体の熱によって加熱されて熱水になる。この熱水は、貯留や固定化に寄与しなかった二酸化炭素及びガス10に含まれる二酸化炭素以外の成分例えば窒素と共に生産井1bから回収される。
そして、生産井1bから回収される熱伝達媒体である熱水、超臨界状態若しくは水に溶けた状態の二酸化炭素及び蒸気を利用して発電を行う。本実施形態では、セパレータ方式を用いて発電を行う。
1b 生産井
14 地熱貯留層
Claims (2)
- 高温岩体地盤に掘削された少なくとも一本の注入井に少なくとも二酸化炭素を含む熱伝達媒体を注入し、前記高温岩体地盤中の成分との反応によって前記高温岩体地盤中の地熱貯留層の縁辺部において前記二酸化炭素の一部を固定化させて前記熱伝達媒体の漏洩を防止しながら、前記高温岩体地盤に掘削された少なくとも一本の生産井から前記高温岩体地盤の熱によって加熱された前記熱伝達媒体を回収し、回収した前記熱伝達媒体を利用して発電を行い、前記発電に利用した後の前記熱伝達媒体を前記注入井から前記高温岩体地盤に再度注入することを特徴とする地熱発電方法。
- 高温岩体地盤に掘削された少なくとも一本の注入井及び少なくとも一本の生産井と、少なくとも二酸化炭素を含み前記高温岩体地盤中の成分との反応によって前記高温岩体地盤中の地熱貯留層の縁辺部において前記二酸化炭素の一部を固定化させると共に前記高温岩体地盤の熱エネルギーを伝達する熱伝達媒体と、前記注入井に前記熱伝達媒体を注入する注入装置と、前記高温岩体地盤の熱によって加熱され前記生産井から回収される前記熱伝達媒体を利用して発電を行う発電機とを有し、前記発電に利用された後の前記熱伝達媒体を前記注入井から前記高温岩体地盤に再度注入することを特徴とする地熱発電システム。
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101949368A (zh) * | 2010-08-24 | 2011-01-19 | 天津大学 | 带有吸收增温***的中低温地热发电机组 |
WO2010104599A3 (en) * | 2009-03-13 | 2011-01-27 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
JP5010754B2 (ja) * | 2009-02-23 | 2012-08-29 | 三菱重工業株式会社 | 高温岩体発電システム |
KR101239773B1 (ko) * | 2012-10-17 | 2013-03-06 | 한국지질자원연구원 | 작동가스와 용융염의 열 교환을 이용한 지열 발전 시스템 및 방법 |
KR101239777B1 (ko) * | 2012-10-17 | 2013-03-06 | 한국지질자원연구원 | 폐가스와 용융염의 열 교환을 이용한 지열 발전 시스템 |
WO2014015307A1 (en) * | 2012-07-20 | 2014-01-23 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
JP2014234794A (ja) * | 2013-06-04 | 2014-12-15 | 大成建設株式会社 | 地熱発電方法および地熱発電システム |
US8991510B2 (en) | 2009-03-13 | 2015-03-31 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
US9121392B2 (en) | 2012-10-17 | 2015-09-01 | Korea Institute Of Geoscience And Mineral Resources | Geothermal power generation system and method using heat exchange between working fluid and molten salt |
JP2017525870A (ja) * | 2014-06-13 | 2017-09-07 | グリーンファイア・エナジー・インコーポレイテッドGreenfire Energy Inc | 地熱ループエネルギー生産システム |
US9869167B2 (en) | 2012-11-12 | 2018-01-16 | Terracoh Inc. | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
WO2019010059A1 (en) * | 2017-07-05 | 2019-01-10 | Lawrence Livermore National Security, Llc | SYSTEMS AND METHODS FOR MULTI-FLUID RENEWABLE GEOTHERMAL ENERGY |
CN109185083A (zh) * | 2018-10-11 | 2019-01-11 | 西安热工研究院有限公司 | 一种超临界二氧化碳地热发电***及发电方法 |
CN109915334A (zh) * | 2019-04-09 | 2019-06-21 | 李福军 | 地热井下循环高效热动电三联供装置及工艺方法 |
JP2020012469A (ja) * | 2015-06-19 | 2020-01-23 | ジャパン・ニュー・エナジー株式会社 | 破砕帯に媒体移送管を設置する方法、地熱発電装置及び地熱発電方法 |
US10995972B2 (en) | 2014-06-20 | 2021-05-04 | Lawrence Livermore National Security, Llc | Multi-fluid renewable geo-energy systems and methods |
CN113864852A (zh) * | 2021-10-15 | 2021-12-31 | 鸿蒙能源(山东)有限公司 | 一种分布式消纳储能电磁感应加热冷热汽三联供*** |
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CN103603639B (zh) * | 2013-11-23 | 2016-01-20 | 中国地质大学(武汉) | 一种地层深部高盐卤水的开采与热量利用*** |
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Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5010754B2 (ja) * | 2009-02-23 | 2012-08-29 | 三菱重工業株式会社 | 高温岩体発電システム |
US8661818B2 (en) | 2009-02-23 | 2014-03-04 | Mitsubishi Heavy Industries, Ltd. | Hot dry rock generation system |
US8833475B2 (en) | 2009-03-13 | 2014-09-16 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
WO2010104599A3 (en) * | 2009-03-13 | 2011-01-27 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
US8991510B2 (en) | 2009-03-13 | 2015-03-31 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
AU2010223059B2 (en) * | 2009-03-13 | 2014-08-14 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
CN101949368A (zh) * | 2010-08-24 | 2011-01-19 | 天津大学 | 带有吸收增温***的中低温地热发电机组 |
WO2014015307A1 (en) * | 2012-07-20 | 2014-01-23 | Regents Of The University Of Minnesota | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
US9624912B2 (en) | 2012-10-17 | 2017-04-18 | Korea Institute Of Geoscience And Mineral Resources | Geothermal power generation system and method using heat exchange between working gas and molten salt |
KR101239777B1 (ko) * | 2012-10-17 | 2013-03-06 | 한국지질자원연구원 | 폐가스와 용융염의 열 교환을 이용한 지열 발전 시스템 |
US9121392B2 (en) | 2012-10-17 | 2015-09-01 | Korea Institute Of Geoscience And Mineral Resources | Geothermal power generation system and method using heat exchange between working fluid and molten salt |
KR101239773B1 (ko) * | 2012-10-17 | 2013-03-06 | 한국지질자원연구원 | 작동가스와 용융염의 열 교환을 이용한 지열 발전 시스템 및 방법 |
US9869167B2 (en) | 2012-11-12 | 2018-01-16 | Terracoh Inc. | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
US11598186B2 (en) | 2012-11-12 | 2023-03-07 | Terracoh Inc. | Enhanced carbon dioxide-based geothermal energy generation systems and methods |
JP2014234794A (ja) * | 2013-06-04 | 2014-12-15 | 大成建設株式会社 | 地熱発電方法および地熱発電システム |
JP2017525870A (ja) * | 2014-06-13 | 2017-09-07 | グリーンファイア・エナジー・インコーポレイテッドGreenfire Energy Inc | 地熱ループエネルギー生産システム |
US10995972B2 (en) | 2014-06-20 | 2021-05-04 | Lawrence Livermore National Security, Llc | Multi-fluid renewable geo-energy systems and methods |
JP2020012469A (ja) * | 2015-06-19 | 2020-01-23 | ジャパン・ニュー・エナジー株式会社 | 破砕帯に媒体移送管を設置する方法、地熱発電装置及び地熱発電方法 |
WO2019010059A1 (en) * | 2017-07-05 | 2019-01-10 | Lawrence Livermore National Security, Llc | SYSTEMS AND METHODS FOR MULTI-FLUID RENEWABLE GEOTHERMAL ENERGY |
CN109185083A (zh) * | 2018-10-11 | 2019-01-11 | 西安热工研究院有限公司 | 一种超临界二氧化碳地热发电***及发电方法 |
CN109915334A (zh) * | 2019-04-09 | 2019-06-21 | 李福军 | 地热井下循环高效热动电三联供装置及工艺方法 |
CN109915334B (zh) * | 2019-04-09 | 2023-12-19 | 陕西国诚恒业能源技术有限公司 | 地热井下循环高效热动电三联供装置及工艺方法 |
CN113864852A (zh) * | 2021-10-15 | 2021-12-31 | 鸿蒙能源(山东)有限公司 | 一种分布式消纳储能电磁感应加热冷热汽三联供*** |
CN113864852B (zh) * | 2021-10-15 | 2022-10-18 | 鸿蒙能源(山东)有限公司 | 一种分布式消纳储能电磁感应加热冷热汽三联供*** |
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