Calibrated dilatometer exercise to probe thermoplastic properties of coal in pressurized CO<sub>2</sub> [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 622.33 *Carbonaceous materials

Thông tin xuất bản: Morgantown, W.Va. : Oak Ridge, Tenn. : National Energy Technology Laboratory (U.S.) ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017

Mô tả vật lý: Size: p. 245-251 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 267774

 This research was aimed at testing a hypothesis, that at elevated CO<
 sub>
 2<
 /sub>
  pressure coal can soften at temperatures well below those obtained in the presence of other gases. That could have serious negative implications for injection of CO<
 sub>
 2<
 /sub>
  into deep coal seams. Here, we have examined the experimental design issues and procedures used in the previously published studies, and experimentally investigated the physical behavior of a similar coal in the presence of CO<
 sub>
 2<
 /sub>
  as a function of pressure and temperature, using the same high-pressure micro-dilatometer refurbished and carefully calibrated for this purpose. No notable reduction in coal softening temperature was observed in this study.
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