sorption characteristic of coal
Influence of temperature on coal sorption characteristics ...
The study focused on the effect of changes in temperature and coal particle sizes on gas sorption and desorption characteristics. The coal size used ranged from fragmented coals, 16 mm, 8 mm, 2.4 mm, powdered coal of 150 μm and 54 mm core samples.
Sorption Characteristics of CO 2 on Rocks and Minerals in ...
This paper investigates the sorption characteristics for rocks (quartzose arenite, greywacke, shale, granite and serpentine) and minerals (quartz and albite) in the CO 2 rich dense phase. The measurements were conducted at 50°C and 100°C, and pressures up to 20 MPa.
Coal sorption characteristics and coal surface tension
The theory of coal surface free energy was found to be capable of explaining coal sorption characteristics. These findings provide the basic knowledge for a better understanding of coal sorption characteristics associated with coal seam gas drainage, which will benefit ventilation and degasification design and hence help to prevent coal mine operations from gas outburst disaster.
[PDF]Numerical Investigation of the Effect of Sorption Time on ...
sorption experiment of coal samples. Then a coupled hydro-mechanical model is established considering the sorption characteristic and permeability evolution. Finally, the effect of sorption time on coal permeability and gas pressure is studied based on this coupled model. 2 .
Fractal characteristics of the anisotropic microstructure ...
Low-rank coal reserves account for nearly 55% of the national coal reserves in China, and it is extremely important to understand their anisotropic microstructure and .
Influence of temperature on coal sorption characteristics ...
The study focused on the effect of changes in temperature and coal particle sizes on gas sorption and desorption characteristics. The coal size used ranged from fragmented coals, 16 mm, 8 mm, 2.4 mm, powdered coal of 150 μm and 54 mm core samples.
Comparative study on sorption characteristics of coal ...
Chemical and petrographic compositions of coal are the measures of maturity and type of organic matter that control the methane sorption characteristics of the coal. 99% of Indian coal occurrences ...
Sorption characteristics and mechanisms of ammonium by ...
Sorption characteristics and mechanisms of ammonium by coal ... honeycomb-cinder and coal gangue. The ammonium sorption processes were well modeled by the pseudo second-order model (R2 [0.99). The experimental data were fitted to both the Langmuir model and the Fre-
Measurement and Evaluation of Coal Sorption Isotherm Data ...
A sorption isotherm is a laboratory measurement performed on a representative coal sample to determine the methane storage capacity as a function of pressure. The term "isotherm" results as the experiment is performed at a constant temperature which should be equal to that of the reservoir.
[PDF]Comparative study on sorption characteristics of coal ...
Chemical and petrographic compositions of coal are the measures of maturity and type of organic matter that control the methane sorption characteristics of the coal. 99% of Indian coal occurrences are contributed by lower Gondwana sequences housed in two major geologic formations, younger Raniganj and older Barakar.
- Author: Sujoy Chattaraj, Sujoy Chattaraj, Debadutta Mohanty, Tarkeshwar Kumar, Gopinath Halder, Kanhaiya Mis...[PDF]
Coal sorption characteristics and coal surface tension ...
Request PDF on ResearchGate | Coal sorption characteristics and coal surface tension | Underground coal mining in the Bulli Seam of Sydney Basin, Australia encounters the problems of coal and gas ...
Coal sorption characteristics and coal surface tension ...
Jan 01, 2014 · The theory of coal surface free energy was found to be capable of explaining coal sorption characteristics. These findings provide the basic knowledge for a better understanding of coal sorption characteristics associated with coal seam gas drainage, which will benefit ventilation and degasification design and hence help to prevent coal mine operations from gas outburst disaster.
Role of coal type and rank on methane sorption ... - DeepDyve
The effect of coal composition, particularly the organic fraction, upon gas sorption has been investigated for Bowen Basin and Sydney Basin, Australia coals.
- Published in: International Journal of Coal Geology · 1999Authors: Chikatamarla Laxminarayana · Peter J CrosdaleAffiliation: James Cook UniversityAbout: Sedimentary rock · Carbon · Adsorption · Coal · Carbon dioxide · Methane[PDF]
0317 RELATIONSHIP OF SORPTION CAPACITY TO COAL .
The major grade parameter affecting the sorption capacity of coal is mineral matter content. The dominant forms of mineral matter in Alabama coal are clay minerals, quartz, pyrite, and calcite, and more than 850 proximate and ultimate analyses are available to analyze key grade parameters (Bragg et al., 1998).
Sorption and Desorption Processes of Methane and .
Sorption and Desorption Processes of Methane and Carbon Dioxide on Coals and Shales - Experiments and Theory* Bernhard M. Krooss1, Andreas Busch2, Yves Gensterblum1 and Dirk Prinz1 Search and Discovery Article #40376 (2009) Posted January 20, 2009 *Adapted from oral presentation at AAPG Annual Convention, San Antonio, TX, April 20-23, 2008
0317 RELATIONSHIP OF SORPTION CAPACITY TO COAL .
differences of coal quality. This report focuses on the relationship of coal quality to gas sorption in the Black Warrior basin to help explain this variability and to quantify the CO2 sequestration capacity of Pottsville coalbed methane reservoirs. To determine the relationship between coal quality and gas sorption capacity, 26 coal samples were
How sorption-induced matrix deformation affects gas .
How sorption-induced matrix deformation affects gas flow in coal seams: A new FE model Hongbin Zhanga,c, Jishan Liua,, D. Elsworthb aSchool of Oil and Gas Engineering, The University of Western Australia, WA 6009, Australia bDepartment of Energy and Geo-Environmental Engineering, Penn State University, USA cHainan University, Hainan Province ...
Influence of Coal Particle Size on Coal Adsorption and ...
The sorption isotherm was found to be highly sensitive with helium density of coal which was determined in the procedure of testing the void volume of sample cell. Hence, coal particle size had a significant influence on the coal sorption characteristics including sorption capacity and desorption hysteresis for CO 2 and CH 4, especially calculated with dry basis of coal.
Anisotropy characteristics of coal shrinkage/swelling and ...
Coal deforms with gas depletion during coal bed methane (CBM) primary recovery and CO 2 storage for purposes of sequestration or enhanced recovery. The sorption-induced deformation associated with gas adsorption and desorption has been experimentally and theoretically studied and is considered to be a unique feature of coal.
Experimental Study on Sorption and Desorption of Propylene ...
The sorption capacities of tested coal samples varied depending upon level of metamorphism, porosity, and chemical characteristics of a coal surface. The highest sorption capacities were reported for high-porosity coals of easily accessible pore structure, high specific surface area values, low level of metamorphism, and hig...
Sorption characteristics and mechanisms of ammonium by ...
aqueous solutions were investigated for three solid coal wastes, slag, honeycomb-cinder and coal gangue. The ammonium sorption processes were well modeled by the pseudo second-order model (R2 [0.99). The experimental data were fitted to both the Langmuir model and the Fre-undlich model, with the Langmuir model better repre-senting the data.