Anomalous fluid properties of carbon dioxide in the supercritical region: application to geological CO2 storage and related hazards

被引：51

作者：

Imre, A. R. ^{[1
,2
,3
]}

Ramboz, C. ^{[2
,4
,5
]}

Deiters, U. K. ^{[3
]}

Kraska, T. ^{[3
]}

机构：

[1] MTA Ctr Energy Res, Thermohydraul Dept, H-1525 Budapest, Hungary

[2] Univ Orleans, ISTO, UMR 7327, F-45071 Orleans, France

[3] Univ Cologne, Inst Phys Chem, D-50939 Cologne, Germany

[4] CNRS, ISTO, UMR 7327, F-45071 Orleans, France

[5] Bur Rech Geol & Minieres, ISTO, UMR 7327, F-45060 Orleans, France

来源：

ENVIRONMENTAL EARTH SCIENCES | 2015年 / 73卷 / 08期

关键词：

Carbon sequestration; CCS; Widom line; INCREASED HYDROCARBON RECOVERY; WIDOM LINE; SEQUESTRATION; SIMULATIONS; PRESSURES; CROSSOVER; RESERVOIR; KETZIN; WATER; TEMPERATURES;

D O I：

10.1007/s12665-014-3716-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：4373 / 4384

页数：12

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