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Anthracite

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Journal Articles
SPE Res Eval & Eng 23 (01): 177–186.
Paper Number: SPE-195672-PA
Published: 17 February 2020
... microscope (FIB‐SEM), X-ray microcomputed tomography (µ‐CT), and 3D visualization technology is applied to study the quantitative characterization of multiscale pores and fractures and show their significance for the storage and permeable capacity of CBM. Two high rank coals, anthracite coal (AC) and semi...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-541
... ABSTRACT We report laboratory experiments that examine the roles of crack geometry and water-content on the evolution of permeability in fractured coals. Experiments are conducted on 2.5 cm diameter, 5 cm long cylindrical anthracite samples from Pennsylvania. To explore the permeability...
Journal Articles
J Can Pet Technol 40 (09).
Paper Number: PETSOC-01-09-03
Published: 01 September 2001
...H. Moazed; T. Viraraghavan A bentonite organo-clay/anthracite mixture in the granular form (EC-100) was used in filtration (column) studies in treating four representative oil-in-water emulsions. The oil-in-water emulsions used were as follows: Standard Mineral Oil (SMO); Kutwell 45 (KUT...
Proceedings Papers

Paper presented at the Technical Meeting / Petroleum Conference of The South Saskatchewan Section, October 17–20, 1999
Paper Number: PETSOC-99-115
... Abstract Bentonite organo-clay/anthracite mixture in the granular form (EC-1 00) wasused in filtration (column) studies in treating four representativeoil-in-water emulsions. The oilin- water emulsions used were as follows:standard mineral oil (SMO); Kutwell45 (KUTJ and Valcool (VAL), two...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-193
... ABSTRACT: Korean anthracite is generally so weak that its compressive strength only ranges from 0.28 MPa to 16 MPa. Furthermore the majority of them. approximately 70 %, reveal a compressive strength and modulus of deformation of less than 5 MPa and 150 MPa respectively. Their bearing capacity...
Images
Comparison of adsorption of a semi-<b>anthracite</b> coal (Mist Mountain Formation...
Published: 23 February 2010
Fig. 5 Comparison of adsorption of a semi-anthracite coal (Mist Mountain Formation, Alberta). From Chikatamarla et al. (in press) . More
Images
A schematic presentation of the proposed project: use of <b>anthracite</b> coal as...
Published: 15 September 2021
Figure 1 A schematic presentation of the proposed project: use of anthracite coal as the raw material to produce surface-modified particles to employ as cement additives to improve the strength and lifetime of cement. More
Images
Effect of adding untreated <b>anthracite</b> particles on the UCS of cement. The c...
Published: 15 September 2021
Figure 2 Effect of adding untreated anthracite particles on the UCS of cement. The compressive strength of cement decreases by adding anthracite particles without any surface modification. More
Images
Effect of adding treated <b>anthracite</b> particles on the UCS of cement. Adding ...
Published: 15 September 2021
Figure 3 Effect of adding treated anthracite particles on the UCS of cement. Adding 0.1 and 0.2 vol.% of surface-modified anthracite micro-particles increase the compressive strength of cement, respectively, about 64% and 309% in comparison to the neat cement. Moreover, the displacement More
Images
Effect of adding different concentrations of treated <b>anthracite</b> particles o...
Published: 15 September 2021
Figure 6 Effect of adding different concentrations of treated anthracite particles on the viscosity of cement at two elevated temperatures as well as room temperature is compared with that of plain cement. The presence of surface- modified anthracite micro-particles decreases the viscosity More
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205840-MS
...Figure 1 A schematic presentation of the proposed project: use of anthracite coal as the raw material to produce surface-modified particles to employ as cement additives to improve the strength and lifetime of cement. ...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-014
... in the economic success of a colliery. The Aviemore Colliery in Dundee, South Africa, currently extracts high-grade anthracite coal from the lower Gus seam of the Vryheid Formation. The Gus seam is overlain by a persistent layer of cross-laminated sandstone, here referred to as the parting, which ranges...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2018, May 22–26, 2018
Paper Number: ISRM-EUROCK-2018-232
...- and medium rank bituminous coals differing by primarily carbon contents and rank, and anthracite. Instrumental indentation tests revealed strong dependence of the evaluated elastic moduli and hardness on coals type. Such dependence is shown by increase of the aforementioned values from lignite to bituminous...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1166
... to the microstructure and rock mechanical property are still in-sufficient. Thus, in this study, we conducted the 3D high resolution microCT scanning (3.43 µ?? voxel sizes) and nanoindentation test on high to low rank coals - anthracite, bituminous, sub-bituminous, lignite, and peat. The coal microstructure...
Proceedings Papers

Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-409
... scenario reduction cost quantity plant type climate change igcc anthracite anthracite 40 tco 2 optimum solution variable system base scenario energy conservation igcc mea scenario storage pump gwh co 2 artificial intelligence carbon tax coal-fired unit emission quantity power plant...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, November 14–17, 1995
Paper Number: SPE-30010-MS
... and Weale investigated sorption induced swelling of low volatile bituminous and semi-anthracite coals. They determined a methane swell in coefficient of 1.70E-6 psi-1 at a pressure of 200 atm. Gun the investigated swelling due to methane and carbon dioxide on coals with ranks ranging from high volatile...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-226
... ABSTRACT: We study the mechanical stability of the linkage in deep underground coal gasification (U.C.G.). The coal under study was a non swelling anthracite. The main thermomechanical characteristics were determined namely, by developping an original methodology with regard to the high...
Proceedings Papers

Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98479
... commonly used wrought and cast stainless steels, for both simulated anthracite and lignite type slurries. Data from loop tests on the erosion resistance of a range of alloys in simulated FGD slurries is presented. The results clearly show the superior resistance of super...
Journal Articles
SPE J. 24 (05): 529–535.
Paper Number: SPE-10821-PA
Published: 01 October 1984
... bituminous and Madrid (NM) anthracite coals Pittsburgh bituminous and Madrid (NM) anthracite coals by using a pulse tracer technique coupled with Fourier analysis of the elution curves. This technique allows the rapid determination of the diffusion parameters with minimal experimental effort. In addition...
Proceedings Papers

Paper presented at the The 14th U.S. Symposium on Rock Mechanics (USRMS), June 11–14, 1972
Paper Number: ARMA-72-0263
... as a guide to engineering judgment in arriving at conclusions about the suitability of the site for development. In the region around Wilkes-Barre, Pennsylvania, there are numerous abandoned underground workings in the anthracite coal veins and ground surface subsidence is not an uncommon occurrence. Most...

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