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1. -1894-5673. Effect of liquid viscosity on liquid film mass transfer for packings.

Degree: Chemical Engineering, 2018, University of Texas – Austin

The effect of liquid viscosity (μL) on liquid film mass transfer for packings was investigated in a pilot-scale column with 0.43 m (16.8 in) ID and 3 m (10 ft) maximum packing. Mass transfer area (ae) of three structured packings, one random packing, and one hybrid packings was measured by chemical absorption of CO2 into dilute (~ 0.1 mol/L) NaOH. Liquid film mass transfer coefficient (kL) of eight structured packings, one random packing, and one hybrid packing was measured by air stripping toluene from water. Liquid viscosity was varied 0.8-70 mPa·s by adding 0-89 wt % glycerol to water in one ae and nine kL experiments. In the experiments, the liquid load was varied 6-75 m3/m2·hr (2.5-30 gpm/ft2), and the gas rates were 0.6, 1, and 1.5 m/s (180, 300, and 450 ACFM). The models of ae,packing and kL were developed based on data for 39 packings from this work and the SRP air-water column database. The model of the gas film mass transfer coefficient, kG, was developed based on data for 20 packings in the SRP air-water database. The secondary (wall and end) effect of ae was corrected in the area model. A taller packing bed consistently gave smaller kL due to maldistribution. Liquid viscosity does not have a significant effect on ae. The kL depends on μL to the -0.75 power, in which the -0.4 is the direct influence on the liquid turbulence, and -0.35 is the indirect effect via diffusivity of the mass transfer species. The effect of μL on kL is the same for different packing geometry and types. To prepare for the pilot-scale area experiment with glycerol, reaction kinetic model of CO2 and hydroxide in aqueous glycerol was developed based on the wetted-wall column (WWC) experiments. Advisors/Committee Members: Rochelle, Gary T. (advisor), Seibert, Frank (advisor), Freeman, Benny (committee member), Eldridge, Bruce (committee member), Ganesan, Venkat (committee member).

Subjects/Keywords: Packing; Mass transfer; Viscosity; Glycerol

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APA (6th Edition):

-1894-5673. (2018). Effect of liquid viscosity on liquid film mass transfer for packings. (Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/63806

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

-1894-5673. “Effect of liquid viscosity on liquid film mass transfer for packings.” 2018. Thesis, University of Texas – Austin. Accessed December 12, 2018. http://hdl.handle.net/2152/63806.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

-1894-5673. “Effect of liquid viscosity on liquid film mass transfer for packings.” 2018. Web. 12 Dec 2018.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-1894-5673. Effect of liquid viscosity on liquid film mass transfer for packings. [Internet] [Thesis]. University of Texas – Austin; 2018. [cited 2018 Dec 12]. Available from: http://hdl.handle.net/2152/63806.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

-1894-5673. Effect of liquid viscosity on liquid film mass transfer for packings. [Thesis]. University of Texas – Austin; 2018. Available from: http://hdl.handle.net/2152/63806

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

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