CO2炭層固定化に関連した石炭試料の浸透率およびガス吸着量

Kyuro Sasaki, Takashi Fujii, Shinji Yamaguchi, Kotaroh Ohaga, Kouji Hattori, Yasuyuki Kishi

研究成果: ジャーナルへの寄稿記事

抄録

It has been clarified that coal seams have a significant ability of CO2 adsorption more than CH4 as approximately double based on some experiments reported. By utilizing this property, coal bed methane gas can be replaced with CO2 injected and produced as a clean energy.
The demonstration project has already has been proceeded in North America, Europe and Japan. In Japan, coal seams, where mining is difficult economically, reserves about 18 billion ton, and it has been estimated that CO2 sequestration into the coal seams has a potential of about 6 trillion m3 (Koide and Yamazaki6)).
In this study, measurements of CO2 adsorption and gas permeabilities of coal specimens have been carried out in order to clarify sensitivities of coal specimen's size on CO2 adsorption capacity and permeability. Furthermore, adsorption behaviors against saturated CO2 water have been measured to simulate CO2 adsorption in a coal seam with high water saturation.
Based on measurement results, it was found that the region of about 10∼15mm in depth from a surface where gas supplied abundantly may work for CO2 adsorption, because the adsorption capacity of the core specimens show about 1 / 2 to 1 / 3 of ones of crushed samples 4mm in size. On the other hand, the adsorption capacity of 4mm crushed coal in the saturated soda water was around 80% of a coal specimen in dry CO2 gas.
元の言語Japanese
ページ(範囲)461-468
ページ数8
ジャーナルShigen to sozai
120
発行部数8
DOI
出版物ステータス出版済み - 8 2004

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Gas adsorption
Gas permeability
coal seam
carbon sequestration
Coal
permeability
coal
adsorption
Adsorption
gas
Gases
Water
water
Demonstrations
methane
saturation

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy(all)
  • Earth and Planetary Sciences(all)

これを引用

CO2炭層固定化に関連した石炭試料の浸透率およびガス吸着量. / Sasaki, Kyuro; Fujii, Takashi; Yamaguchi, Shinji; Ohaga, Kotaroh; Hattori, Kouji; Kishi, Yasuyuki.

:: Shigen to sozai, 巻 120, 番号 8, 08.2004, p. 461-468 .

研究成果: ジャーナルへの寄稿記事

Sasaki, K, Fujii, T, Yamaguchi, S, Ohaga, K, Hattori, K & Kishi, Y 2004, 'CO2炭層固定化に関連した石炭試料の浸透率およびガス吸着量', Shigen to sozai, 巻. 120, 番号 8, pp. 461-468 . https://doi.org/10.2473/shigentosozai.120.461
Sasaki, Kyuro ; Fujii, Takashi ; Yamaguchi, Shinji ; Ohaga, Kotaroh ; Hattori, Kouji ; Kishi, Yasuyuki. / CO2炭層固定化に関連した石炭試料の浸透率およびガス吸着量. :: Shigen to sozai. 2004 ; 巻 120, 番号 8. pp. 461-468 .
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abstract = "It has been clarified that coal seams have a significant ability of CO2 adsorption more than CH4 as approximately double based on some experiments reported. By utilizing this property, coal bed methane gas can be replaced with CO2 injected and produced as a clean energy.The demonstration project has already has been proceeded in North America, Europe and Japan. In Japan, coal seams, where mining is difficult economically, reserves about 18 billion ton, and it has been estimated that CO2 sequestration into the coal seams has a potential of about 6 trillion m3 (Koide and Yamazaki6)).In this study, measurements of CO2 adsorption and gas permeabilities of coal specimens have been carried out in order to clarify sensitivities of coal specimen's size on CO2 adsorption capacity and permeability. Furthermore, adsorption behaviors against saturated CO2 water have been measured to simulate CO2 adsorption in a coal seam with high water saturation.Based on measurement results, it was found that the region of about 10∼15mm in depth from a surface where gas supplied abundantly may work for CO2 adsorption, because the adsorption capacity of the core specimens show about 1 / 2 to 1 / 3 of ones of crushed samples 4mm in size. On the other hand, the adsorption capacity of 4mm crushed coal in the saturated soda water was around 80{\%} of a coal specimen in dry CO2 gas.",
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