Investigations on the Methane Adsorption Behaviors of Ultrasonic Bath Assisted Bituminous Coal
International Journal of Oil, Gas and Coal Engineering
Volume 1, Issue 2, September 2013, Pages: 23-28
Published: Sep. 30, 2013
Views 3080 Downloads 172
Yanyan Feng, Department of Chemical Engineering, Sichuan University, Chengdu 610065, China
Wen Yang, Department of Chemical Engineering, Sichuan University, Chengdu 610065, China
Chengfa Jiang, Department of Chemical Engineering, Sichuan University, Chengdu 610065, China
Wei Chu, Department of Chemical Engineering, Sichuan University, Chengdu 610065, China
The purpose of this work was to prepare coals with various pore structures, and investigate both microporosity development and corresponding methane adsorption capacities. A series of coal samples have been prepared by ultrasonic bath, and characterized by N2 adsorption and scanning electron microscopy (SEM) to obtain the pore structure and surface morphology of the samples. Methane adsorption measurement was conducted in the temperature range 25~55 °C and at pressures of up to 3.5 MPa. The Langmuir equation was applied to fit the experimental data, and the result showed the methane uptake correlated to the micropore volume and surface area, provided by the adsorption of N2 at 77 K. The surface area, pore volume, pore size distribution and surface morphology of the coal have changed significantly when treated for 10 min, resulting in the maximum of methane adsorption capacity. With the time further increasing, the surface area, pore volume and microporosity of the coal samples were reduced, along with the decrease of methane adsorption capacity. It can be concluded that the surface area, pore volume and microporosity had positive correlations with the amount of methane adsorption. The attenuation coefficient of the saturated adsorption amount over the coal samples substantially presented an inverse ‘U-shape’, indicating that the variation of the saturated adsorption amount was mainly controlled by the pore structure. Moreover, the temperature had a certain relationship with the attenuation coefficient of the saturated adsorption amount.
Investigations on the Methane Adsorption Behaviors of Ultrasonic Bath Assisted Bituminous Coal, International Journal of Oil, Gas and Coal Engineering.
Vol. 1, No. 2,
2013, pp. 23-28.
Y. Y. Feng, W. Yang, D. J. Liu, and W. Chu, "Surface modification of bituminous coal and its effects on methane adsorption," Chinese J. Chem. 2013, 31(8): 1102-1108.
J. J. Luo, Y. F. Liu, C. F. Jiang, W. Chu, W. Jie, and H. P. Xie, "Experimental and modeling study of methane adsorption on activated carbon derived from anthracite," J. Chem. Eng. Data 2011, 56(12): 4919-4926.
R. Pini, D. Marx, L. Burlini, G. Storti, and M. Mazzotti, "Coal characterization for ECBM recovery: gas sorption under dry and humid conditions, and its effect on displacement dynamics," 10th International Conference on Greenhouse Gas Control Technologies 2011, 4: 2157-2161.
E. C. Gaucher, P. D. C. Defossez, M. Bizi, D. Bonijoly, J. R. Disnar, F. Laggoun-Defarge, C. Garnier, G. Finqueneisel, T. Zimny, and D. Grgic, "Coal laboratory cha racterisation for CO2 geological storage," 10th International Conference on Greenhouse Gas Control Technologies 2011, 4: 3147-3154.
Y. Zhao, H. Y. Peng, "Study on the coupling characteristics of coal matrix, fracture and CBM under vibration," Disa. Adv. 2013, 6: 291-297.
X. Y. Lin, X. B. Su, and J. H. Zeng, "Recoverable potential of coalbed methane in the Wangying-Liujia depression, Fuxin basin, China," Energ. Explor. Exploit. 2012, 30(3): 477-498.
E. Ozdemir, K. Schroeder, "Effect of moisture on adsorption isotherms and adsorption capacities of CO2 on coals," Energ. Fuel 2009, 23: 2821-2831.
C. M. White, D. H. Smith, K. L. Jones, A. L. Goodman, S. A. Jikich, R. B. Lacount, S. B. Dubose, E. Ozdemir, B. I. Morsi, and K. T. Schroeder, "Sequestration of carbon dioxide in coal with enhanced coalbed methane recovery-A review," Energ. Fuel 2005, 19(3): 659-724.
D. F. Zhang, Y. J. Cui, B. Liu, S. G. Li, W. L. Song, and W. G. Lin, "Supercritical pure methane and CO2 adsorption on various rank coals of China: Experiments and Modeling," Energ. Fuel 2011, 25(4): 1891-1899.
C. Garnier, G. Finqueneisel, T. Zimny, Z. Pokryszka, S. Lafortune, P. D. C. Defossez, and E. C. Gaucher, "Selection of coals of different maturities for CO2 Storage by modelling of CH4 and CO2 adsorption isotherms," Int. J. Coal Geol. 2011, 87(2): 80-86.
Y. M. Lv, D. Z. Tang, H. Xu, and H. H. Luo, "Production characteristics and the key factors in high-rank coalbed methane fields: A case study on the Fanzhuang Block, Southern Qinshui Basin, China," Int. J. Coal Geol. 2012, 96-97: 93-108.
S. D. Golding, I. T. Uysal, C. J. Boreham, D. Kirste, K. A. Baublys, and J. S. Esterle, "Adsorption and mineral trapping dominate CO2 storage in coal systems," 10th International Conference on Greenhouse Gas Control Technologies 2011, 4: 3131-3138.
Y. B. Melnichenko, L. L. He, R. Sakurovs, A. L. Kholodenko, T. Blach, M. Mastalerz, A. P. Radlinski, G. Cheng, and D. F. R. Mildner, "Accessibility of pores in coal to methane and carbon dioxide," Fuel 2012, 91(1): 200-208.
Y. Yao, D. Liu, D. Tang, S. Tang, and W. Huang, "Fractal characterization of adsorption-pores of coals from North China: An investigation on CH4 adsorption capacity of coals," Int. J. Coal Geol. 2008, 73(1): 27-42.
S. Zhang, S. Yang, J. Cheng, B. Zhang, and C. Lu, "Study on relationships between coal fractal characteristics and coal and gas outburst," Procedia Engineer 2011, 26.
L. L. He, Y. B. Melnichenko, M. Mastalerz, R. Sakurovs, A. P. Radlinski, and T. Blach, "Pore accessibility by methane and carbon dioxide in coal as determined by neutron scattering," Energ. Fuel 2012, 26(3): 1975-1983.
R. Sakurovs, S. Day, S. Weir, and G. Duffy, "Temperature dependence of sorption of gases by coals and charcoals," Int. J. Coal Geol. 2008, 73(3-4): 250-258.
A. Mouahid, D. Bessieres, F. Plantier, and G. Pijaudier-Cabot, "A thermostated coupled apparatus for the simultaneous determination of adsorption isotherms and differential enthalpies of adsorption at high pressure and high temperature," J. Therm. Anal. Calorim. 2012, 109(2): 1077-1087.
S. A. Mohammad, K. A. M. Gasem, "Multiphase analysis for high-pressure adsorption of CO2/water mixtures on wet coals," Energ. Fuel 2012, 26(6): 3470-3480.
S. A. Mohammad, A. Arumugam, R. L. Robinson, and K. A. M. Gasem, "High-pressure adsorption of pure gases on coals and activated carbon: Measurements and modeling," Energ. Fuel 2012, 26(1): 536-548.
P. Chareonsuppanimit, S. A. Mohammad, R. L. Robinson, and K. A. M. Gasem, "High-pressure adsorption of gases on shales: Measurements and modeling," Int. J. Coal Geol. 2012, 95: 34-46.
S. X. Hao, J. Wen, X. P. Yu, and W. Chu, "Effect of the surface oxygen groups on methane adsorption on coals," Appl. Surf. Sci. 2013, 264: 433-442.
Y. Y. Feng, C. F. Jiang, D. J. Liu, and W. Chu, "Experimental investigations on microstructure and adsorption property of heat-treated coal chars," J. Anal. Appl. Pyrol. 2013, in press.
H. J. Kim, Y. Shi, J. He, H. H. Lee, and C. H. Lee, "Adsorption characteristics of CO2 and CH4 on dry and wet coal from subcritical to supercritical conditions," Chem. Eng. J. 2011, 171(1): 45-53.
Z. J. Pan, L. D. Connell, "Modelling of anisotropic coal swelling and its impact on permeability behaviour for primary and enhanced coalbed methane recovery," Int. J. Coal Geol. 2011, 85(3-4): 257-267.
M. J. Lwin, "The effect of different gases on the ultrasonic response of coal," Geophysics 2011, 76(5): E155-E163.
E. Battistutta, M. Lutynski, H. Bruining, K. H. Wolf, and S. Rudolph, "Adequacy of equation of state models for determination of adsorption of gas mixtures in a manometric set up," Int. J. Coal Geol. 2012, 89(1): 114-122