Universität zu Köln

Imre, A. R., Ramboz, C., Deiters, Ulrich K. ORCID: 0000-0001-7669-5847 and Kraska, T. (2015). Anomalous fluid properties of carbon dioxide in the supercritical region: application to geological CO2 storage and related hazards. Environ. Earth Sci., 73 (8). S. 4373 - 4385. NEW YORK: SPRINGER. ISSN 1866-6299

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Abstract

For supercritical fluids there is a wedge-shaped region called Widom region, where several physico-chemical quantities (e.g. compressibility, heat capacities, density, thermal expansivity, speed of sound) show anomalous behaviour. In this paper, several Widom lines of supercritical CO2 have been computed with the Wagner-Span reference equation of state. The locations of the Widom lines are compared with the P-T range of the Snohvit, Sleipner, Nagaoka and Ketzin reservoirs, which are recently studied for their fitness for CO2 sequestration, and two natural CO2 storage analogues, Montmiral in France and Mihalyi-R,pcelak in Hungary. The potential consequences of leaking CO2 crossing any of the Widom lines are discussed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Imre, A. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ramboz, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Deiters, Ulrich K. UNSPECIFIED orcid.org/0000-0001-7669-5847 UNSPECIFIED Kraska, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-403678
DOI:	10.1007/s12665-014-3716-5
Journal or Publication Title:	Environ. Earth Sci.
Volume:	73
Number:	8
Page Range:	S. 4373 - 4385
Date:	2015
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1866-6299
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INCREASED HYDROCARBON RECOVERY; WIDOM LINE; SEQUESTRATION; SIMULATIONS; PRESSURES; CROSSOVER; RESERVOIR; KETZIN; WATER; TEMPERATURES Multiple languages Environmental Sciences; Geosciences, Multidisciplinary; Water Resources Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/40367