High-pressure methane and carbon dioxide sorption on coal and shale samples from the Paraná Basin, Brazil

Weniger, Philipp; Kalkreuth, W.; Busch, Andreas; Krooß, Bernhard M.

doi:10.1016/j.coal.2010.08.003

Cited by 361 publications

(248 citation statements)

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“…For Belgium black shale, Khosrokhavar et al [62] investigated the sorption capacity for CO2 is about 7.9 kg/ton of the formation, while Busch et al [85] showed the sorption capacity for CO 2 is 5.5 kg/ton of the formation for dry samples. These results are consistent with those by Weniger [67], discussed previously regarding the gas sorption behavior of CH4 and CO2 in coals and shales in the Parana Basin, Brazil.…”

Section: Ch 4 Capacity Co 2 Storage and Enhanced Gas Recovery In Shalessupporting

confidence: 82%

Mechanisms for CO2 Sequestration in Geological Formations and Enhanced Gas Recovery

Khosrokhavar¹

2016

Springer Theses

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Section: Ch 4 Capacity Co 2 Storage and Enhanced Gas Recovery In Shalessupporting

confidence: 82%

Mechanisms for CO2 Sequestration in Geological Formations and Enhanced Gas Recovery

Khosrokhavar¹

2016

Springer Theses

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“…Within the phyllosilicates group, illiterich mixed layer illite-smectite is the most prominent component, followed by kaolinite, illite, muscovite and chlorite. In addition, there is a moderate content of quartz (8)(9)(10)(11)(12)(13)(14)(15)(16) wt.%) and minor contents of pyrite (4-9 wt.%), feldspars (1-5 wt.%) and dolomite (0.3-6.4 wt.%).…”

Section: Mineralogymentioning

confidence: 99%

“…Several authors have reported positive correlations of methane sorption uptake and TOC, implying that much of the sorbed methane in shale is associated with organic matter. 12,14,15 . Gasparik et al reported no correlation for methane sorption capacity and TOC (0.8-10.5%) for dry shales 16 , 5 but found a correlation for another suite of dry shales with TOC (0.4-14.1%).…”

Section: Introductionmentioning

confidence: 99%

“…11 Although sorption data on shales are available, the absolute sorption capacity in shale remains poorly constrained. [11][12][13][14][15][16][18][19][20] Shales are complex heterogeneous materials with amorphous kerogen and inorganic phases. The amounts of methane adsorbed on shales are also very low and this is complicated by the fact that the minor kerogen component has a much larger adsorption capacity than the inorganic phase in the shale.…”

Section: Introductionmentioning

confidence: 99%

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High-Pressure Methane Adsorption and Characterization of Pores in Posidonia Shales and Isolated Kerogens

et al. 2014

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. (2014) 'High-pressure methane adsorption and characterization of pores in Posidonia shales and isolated kerogens.', Energy fuels., 28 (5). pp. 2886-2901. Further information on publisher's website:http://dx.doi.org/10.1021/ef402466mPublisher's copyright statement:This document is the Accepted Manuscript version of a Published Work that appeared in nal form in Energy Fuels, copyright c American Chemical Society after peer review and technical editing by the publisher. To access the nal edited and published work see http://dx.doi.org/10.1021/ef402466m. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. AbstractSorption capacities and pore characteristics of bulk shales and isolated kerogens have been determined for immature, oil-window and gas-window mature samples from the Lower Toarcian Posidonia Shale formation. Dubinin-Radushkevich (DR) micropore volumes, sorption pore volumes and surface areas of shales and kerogens were determined from CO 2 adsorption isotherms at -78°C and 0°C, and N 2 adsorption isotherms at -196°C. Mercury injection capillary pressure porosimetry, grain density measurements and helium pycnometry were used to determine shale and kerogen densities and total pore volumes.Total porosities decrease through the oil-window and then increase into the gas-window.High-pressure methane isotherms up to 14 MPa were determined at 45, 65 and 85°C on dry shale and at 45 and 65°C on kerogen. Methane excess uptakes at 65°C and 11.5 MPa were in the range 0.056-0.110 mmol g -1 (40-78 scf t -1 ) for dry Posidonia shales and 0.36-0.70 mmol g -1 (253-499 scf t -1 ) for the corresponding dry kerogens. Absolute methane isotherms were calculated by correcting for the gas at bulk gas phase density in the sorption pore volume. The enthalpies of CH 4 adsorption for shales and kerogens at zero surface coverage showed no significant variation with maturity, indicating that the sorption pore volume is the primary control on sorption uptake. The sum of pore volumes measured by a) CO 2 sorption at -78°C and b) mercury injection, are similar to the total porosity for shales. Since mercury in our experiments occupies pores with constrictions larger than ca. 6 nm, we infer that porosity measured by CO 2 adsorption at -78°C in the samples used in this study is largely within pores with effective diameters smaller than 6 nm. The linear correlation between maximum CH 4 surface excess sorption and CO 2 sorption pore volume at -78°C is very strong for both shales and kerogens, and goes through the origin, suggestin...

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“…Thus, "desorption" means a number of processes resulting in the release of the sorbing gas from the sorbent. When speaking about the release of methane from a coal bed into an excavation, we typically mean the combination of the filtration (Crank 1975;Timofejew 1967;Pillalamarry et al 2011;Hu et al 2009;Wu et al 1998), diffusion, and sorption processes, which will further be referred to as "the sorption proper" (Harpalani and Chen 1997;Pillalamarry et al 2011;Day and Sakurovs 2008;Weniger et al 2010;CeglarskaStefańska and Zarębska 2005;Majewska et al 2009;Busch and Gensterblum 2011;Nagaoka and Imae 2003). Under laboratory conditions, in which case the investigations are carried out for small-sized grain samples, we can assume that the transportation of gas is influenced mainly by the diffusion processes.…”

Section: Introductionmentioning

confidence: 99%

Sorption Rate of Carbon Dioxide on Coal

Gawor

Skoczylas

2013

Transp Porous Med

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Traditionally, physicochemical processes whose result is the release of methane from a coal sample-often referred to as desorption-are discussed in relation to two phenomena, i.e., the transportation of gas inward (or outward) the porous substance, and the desorption (or sorption) proper of gas from the coal surface. The complex pore structure of coal necessitated the adoption of an arbitrary division of the gas transportation into: the diffusion of gas within the pore network in grains (understood as a molecular phenomenon) and the filtration of gas through the system of fissures and large pores (understood as a phenomenon related to the fluid mechanics). The filtration-type transportation of gas through a porous medium is most typically discussed in the context of the flow of gas through coal beds, or other porous rocks. In laboratory analyses carried out on granular samples obtained from the porous material, the filtrational flow of gas among the sorbent grains and within the fissure system is so fast (as compared to the diffusion occurring inside the grains) that the decisive factor influencing the kinetics of gas release is, most often, diffusion. In the case of such observations, it is assumed that the process of the sorption proper is almost instantaneous in its nature. There are no theoretical premises that would challenge an assumption thus formed, however, it would be very interesting to carry out an experiment confirming their existence. The present paper discusses an attempt to estimate, under laboratory conditions, the kinetics of the sorption proper. It provides a description of the specially built measuring equipment, as well as the results of the performed experiments, together with their analysis. In the performed experiments, the obtained time constants of sorption were smaller than 50 ms. The lowest values did not exceed 10 ms. Since the obtained time constant values are very low-in spite of the fact that it was impossible to completely eliminate the delays connected with the transportation of molecules to the sorption sites-the authors are of the opinion that the process of sorption proper shall be assumed to be instantaneous.

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High-pressure methane and carbon dioxide sorption on coal and shale samples from the Paraná Basin, Brazil

Cited by 361 publications

References 33 publications

Mechanisms for CO2 Sequestration in Geological Formations and Enhanced Gas Recovery

Mechanisms for CO2 Sequestration in Geological Formations and Enhanced Gas Recovery

High-Pressure Methane Adsorption and Characterization of Pores in Posidonia Shales and Isolated Kerogens

Sorption Rate of Carbon Dioxide on Coal

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