Journal
FUEL PROCESSING TECHNOLOGY
Volume 100, Issue -, Pages 30-34Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2011.12.043
Keywords
Exchange sorption; CO2 sequestration; Exchange zone; Coal briquette
Ask authors/readers for more resources
The paper presents the study of CO2/CH4 exchange sorption in a coal briquette. The briquette was formed inside a heavy-walled steel pipe that served the purpose of a measuring chamber. The briquette with a porosity of 8.3%, a diameter of 0.096 m and a length of 0.280 m was used. Three laboratory experiments were conducted. The experiments consisted in CO2 injecting onto the input of the briquette previously saturated with CH4. In each experiment, during the exchange sorption process, the input CO2 pressure and output gas mixture pressure were stabilized at the level of 11, 12 and 13 bar at the input and 10 bar at the output of the briquette. Pressure changes along the briquette and concentration of the gas mixture flowing out of the briquette were analyzed. It was observed that a pore pressure depression moving along the briquette accompanies the exchange sorption. The presence of the pore pressure depression indicated existence of a separated zone where exchange sorption takes place. It was also observed that from the moment that CO2 appeared at the output of the briquette, sudden changes of its concentration were recorded. This phenomenon confirms the thesis of the exchange zone occurrence accompanying the CO2/CH4 exchange sorption in the briquette. A description method of the observed phenomenon was proposed. (C) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available