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Title: Calibrated dilatometer exercise to probe thermoplastic properties of coal in pressurized CO 2

This research was aimed at testing a hypothesis, that at elevated CO 2 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 2 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 2 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.
Authors:
 [1] ;  [1] ;  [1]
  1. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
Publication Date:
Report Number(s):
NETL-PUB-20273
Journal ID: ISSN 2095-8293; PII: 171
Type:
Accepted Manuscript
Journal Name:
International Journal of Coal Science & Technology
Additional Journal Information:
Journal Volume: 4; Journal Issue: 3; Journal ID: ISSN 2095-8293
Publisher:
Springer
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 36 MATERIALS SCIENCE; 47 OTHER INSTRUMENTATION; 58 GEOSCIENCES; 54 ENVIRONMENTAL SCIENCES; Dilatometer; Carbon Dioxide; Coal; Plasticization
OSTI Identifier:
1404701

Romanov, Vyacheslav N., Lynn, Ronald J., and Warzinski, Robert P.. Calibrated dilatometer exercise to probe thermoplastic properties of coal in pressurized CO2. United States: N. p., Web. doi:10.1007/s40789-017-0171-4.
Romanov, Vyacheslav N., Lynn, Ronald J., & Warzinski, Robert P.. Calibrated dilatometer exercise to probe thermoplastic properties of coal in pressurized CO2. United States. doi:10.1007/s40789-017-0171-4.
Romanov, Vyacheslav N., Lynn, Ronald J., and Warzinski, Robert P.. 2017. "Calibrated dilatometer exercise to probe thermoplastic properties of coal in pressurized CO2". United States. doi:10.1007/s40789-017-0171-4. https://www.osti.gov/servlets/purl/1404701.
@article{osti_1404701,
title = {Calibrated dilatometer exercise to probe thermoplastic properties of coal in pressurized CO2},
author = {Romanov, Vyacheslav N. and Lynn, Ronald J. and Warzinski, Robert P.},
abstractNote = {This research was aimed at testing a hypothesis, that at elevated CO2 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 CO2 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 CO2 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.},
doi = {10.1007/s40789-017-0171-4},
journal = {International Journal of Coal Science & Technology},
number = 3,
volume = 4,
place = {United States},
year = {2017},
month = {7}
}