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ERIC Number: EJ921280
Record Type: Journal
Publication Date: 2010-Dec
Pages: 3
Abstractor: As Provided
Reference Count: 11
ISBN: N/A
ISSN: ISSN-0021-9584
Carbon Dioxide Absorption in a Membrane Contactor with Color Change
Pantaleao, Ines; Portugal, Ana F.; Mendes, Adelio; Gabriel, Joaquim
Journal of Chemical Education, v87 n12 p1377-1379 Dec 2010
A pedagogical experiment is described to examine the physical absorption of gases, in this case carbon dioxide, in a hollow fiber membrane contactor (HFMC) where the absorption concentration profile can be followed by a color change. The HFMC is used to teach important concepts and can be used in interesting applications for students, such as carbon dioxide removal from gas streams. Students find the issue of carbon dioxide absorption interesting as a mean of reducing global warming. The color change helps the students understand the process, making the experiment appealing. With the described setup, students obtain the carbon dioxide flux as a function of liquid velocity inside the fibers. At low liquid velocities, the results agree with those predicted by a simple mathematical model, and at high liquid velocities, a deviation from the model is observed, as expected, for the concentration of carbon dioxide used in the gas stream. As an additional task, students use the collected data to estimate carbon dioxide solubility in water. (Contains 4 figures and 1 note.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A