Skoči na glavni sadržaj

Chemical and Biochemical Engineering Quarterly, Vol. 32 No. 1, 2018.

Izvorni znanstveni članak

https://doi.org/10.15255/CABEQ.2016.1055a

Recovery of Acrylic Acid Using Calcium Peroxide Nanoparticles: Thermodynamics and Continuous Column Study

B. S. De ; Advanced Separation and Analytical Laboratory (ASAL), Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur (M.S) 440010, India
K. L. Wasewar orcid id orcid.org/0000-0001-7453-6308 ; Advanced Separation and Analytical Laboratory (ASAL), Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur (M.S) 440010, India
V. R. Dhongde ; Advanced Separation and Analytical Laboratory (ASAL), Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur (M.S) 440010, India
P. B. Sontakke ; Advanced Separation and Analytical Laboratory (ASAL), Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur (M.S) 440010, India

Puni tekst: engleski pdf 904 Kb

str. 19-28

preuzimanja: 462

citiraj

Sažetak

The thermodynamic parameters (DGº, DHº, and DSº) for adsorption of acrylic acid on CaO2 nanoparticle were estimated in the temperature range of 300.15 – 313.15 K, which helps to evaluate the feasibility of adsorption process, nature of adsorption process, and affinity of adsorbent toward solute molecule. A dynamic adsorption study in a fixed-bed column was performed using CaO2 nanoparticle for the recovery of acrylic acid from aqueous stream. The breakthrough curves of adsorption system were obtained for different process variables, such as initial acrylic acid concentration (2882–7206 mg L–1), flow rate (5–9 mL min–1), and bed height (10–20 cm). The bed-depth service time model, Thomas model, Yoon-Nelson model, and deactivation kinetic model were applied to the experimental data to predict the column performance. The data were in good agreement with the deactivation kinetic model. The presented results may be useful for the design of adsorption system using nanoparticles, which can be further extended to other systems.







This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

acrylic acid; calcium peroxide nanoparticles; thermodynamics; continuous column adsorption; modelling

Hrčak ID:

197228

URI

https://hrcak.srce.hr/197228

Datum izdavanja:

29.3.2018.

Posjeta: 1.371 *