Experimental and simulation study of flue gas desulfurization using slurry reactor
Dissertant
University
University of Technology
Faculty
-
Department
Department of Chemical Engineering
University Country
Iraq
Degree
Master
Degree Date
2008
English Abstract
The present research focuses on the adsorption of sulfur dioxide using activated carbon as the slurry media instead of lime, which is used in the conventional flue gas desulfurization process.
Activated carbon was selected depending upon its high efficiency of sulfur dioxide removal, cost requirements, availability and ability to be regenerated.
The adsorption process was carried out in a slurry reactor of 7.5 cm inside diameter and 50 cm height.
A slurry of activated carbon with mean particle size of dpm = 0.7q mm was used.
The effects of five operating variables on the removal efficiency of S02 were studied.
The range of operating variables studied were, initial concentration of sulfur dioxide in simulated flue gas stream (500 < C0 < 2000) ppm, temperature of bed (30 < T < SG) < C, the flow rate of the simulated flue gas (20 < Q < 80) Mnin, height of the bed (10, IS, 24) cm and relative humidity of the simulated flue gas.
The results showed that a higher initial concentration of S02 reduces the desulfurization activity of activated carbon.
The S02 removal efficiency was highly temperature sensitive, the S02 removal efficiency was 91 % at 30aC, while it was 100 % at SO C, for one hour experimental run time when C0 = 500ppm and H = 24 cm in wet bed.
The flow rate of simulated flue gas exhibited an optimal value of = 40 / min.
Increasing bed height by 14 cm increased, the over all removal efficiency C0-2000 ppm, T-80 °C and Q = 20 f / min.
The removal efficiency was higher in wet bed condition as compared to those in dry bed condition, for the same experimental conditions.
Moreover the difference in the concentration of S02 in the effluent gas between wet and dry bed conditions at any time becomes higher as the temperature of the bed increased.
The results of the present study with dpm=0.70 mm were compared with the results of previous study conducted under similar operating conditions but with dpm 1.5 mm.
An increase NT the overall removal efficiency of about 3% in wet bed conditions and 6.7 % in dry bed conditions were obtained on reducing the particle mean diameter from 1.5 mm to 0.70 mm the partial differential equations governing the desulfurization process were solved using a finite difference method (Explicit Method) implementing Fortran N90.
The model was then used to simulate the performance of the desulfurization process at various operating conditions ; It was found that the model gives a very good description of the experimental data with an error less than 5%.
Main Subjects
Topics
American Psychological Association (APA)
Eliass, Asmaa Ibrahim. (2008). Experimental and simulation study of flue gas desulfurization using slurry reactor. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305565
Modern Language Association (MLA)
Eliass, Asmaa Ibrahim. Experimental and simulation study of flue gas desulfurization using slurry reactor. (Master's theses Theses and Dissertations Master). University of Technology. (2008).
https://search.emarefa.net/detail/BIM-305565
American Medical Association (AMA)
Eliass, Asmaa Ibrahim. (2008). Experimental and simulation study of flue gas desulfurization using slurry reactor. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305565
Language
English
Data Type
Arab Theses
Record ID
BIM-305565
