Mass transfer process for prolate spheroidal drops in rotating disc contactor column

A rotating disc contactor (RDC) column is one of the equipments that is commonly used in the chemical industry. This column is used for the liquid-liquid extraction process where it is a method to separate compounds based on their insolubility differences. The mass transfer process in the RDC column...

Full description

Saved in:

Bibliographic Details
Main Author:	Abu Hassan, Nurul Nadiya
Format:	Thesis
Language:	English
Published:	2021
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/102278/1/NurulNadiyaAbuPFS2021.pdf.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.102278
record_format	uketd_dc
spelling	my-utm-ep.1022782023-08-14T06:32:33Z Mass transfer process for prolate spheroidal drops in rotating disc contactor column 2021 Abu Hassan, Nurul Nadiya TP Chemical technology A rotating disc contactor (RDC) column is one of the equipments that is commonly used in the chemical industry. This column is used for the liquid-liquid extraction process where it is a method to separate compounds based on their insolubility differences. The mass transfer process in the RDC column occurs due to the counter-current motion of the drop and continuous phases. The mass transfer process that occurs in the RDC column is also can be modelled mathematically. Previously, this process is modelled by assuming that the drops were spherical. After considering the research done on the distribution of drops and column properties, the drops have shapes closer to spheroidal rather than spherical. Therefore, a new model of the mass transfer process in the RDC column is proposed. This new model is developed by assuming that the drops are taking prolate spheroidal shape instead of oblate due to the properties of the column. The mass transfer process of the prolate spheroidal drops is determined by using Fick's second law in Cartesian coordinates to predict the diffusion for rectangular shape body. By using a suitable transformation equation, a three-dimensional partial differential equation is obtained. However, instead of solving Fick's second law analytically, the numerical approach is used. In this study, the finite difference method (FDM) is chosen. Since FDM is one of the methods that engineers usually use to solve modelling problems, the algorithm for this three-dimensional partial differential equation would help engineers increase the capability of the RDC column only by simulation, thus reducing the experimental cost. The algorithm developed in this study can be adjusted depending on the initial value and the boundary value of the system. This new model shows that the results obtained are satisfying the profile of concentration in the RDC column. After comparing the numerical results with the experimental results, this model's relative error was between 0.1% until 9%, which varied due to some stages. In conclusion, the results from the new model are closer to the experimental results compared to the older model. The algorithm obtained in this study can be used for references in solving the threedimensional partial differential equation and this model would help engineers in improving the RDC column performance. 2021 Thesis http://eprints.utm.my/id/eprint/102278/ http://eprints.utm.my/id/eprint/102278/1/NurulNadiyaAbuPFS2021.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146068 phd doctoral Universiti Teknologi Malaysia Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Abu Hassan, Nurul Nadiya Mass transfer process for prolate spheroidal drops in rotating disc contactor column
description	A rotating disc contactor (RDC) column is one of the equipments that is commonly used in the chemical industry. This column is used for the liquid-liquid extraction process where it is a method to separate compounds based on their insolubility differences. The mass transfer process in the RDC column occurs due to the counter-current motion of the drop and continuous phases. The mass transfer process that occurs in the RDC column is also can be modelled mathematically. Previously, this process is modelled by assuming that the drops were spherical. After considering the research done on the distribution of drops and column properties, the drops have shapes closer to spheroidal rather than spherical. Therefore, a new model of the mass transfer process in the RDC column is proposed. This new model is developed by assuming that the drops are taking prolate spheroidal shape instead of oblate due to the properties of the column. The mass transfer process of the prolate spheroidal drops is determined by using Fick's second law in Cartesian coordinates to predict the diffusion for rectangular shape body. By using a suitable transformation equation, a three-dimensional partial differential equation is obtained. However, instead of solving Fick's second law analytically, the numerical approach is used. In this study, the finite difference method (FDM) is chosen. Since FDM is one of the methods that engineers usually use to solve modelling problems, the algorithm for this three-dimensional partial differential equation would help engineers increase the capability of the RDC column only by simulation, thus reducing the experimental cost. The algorithm developed in this study can be adjusted depending on the initial value and the boundary value of the system. This new model shows that the results obtained are satisfying the profile of concentration in the RDC column. After comparing the numerical results with the experimental results, this model's relative error was between 0.1% until 9%, which varied due to some stages. In conclusion, the results from the new model are closer to the experimental results compared to the older model. The algorithm obtained in this study can be used for references in solving the threedimensional partial differential equation and this model would help engineers in improving the RDC column performance.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Abu Hassan, Nurul Nadiya
author_facet	Abu Hassan, Nurul Nadiya
author_sort	Abu Hassan, Nurul Nadiya
title	Mass transfer process for prolate spheroidal drops in rotating disc contactor column
title_short	Mass transfer process for prolate spheroidal drops in rotating disc contactor column
title_full	Mass transfer process for prolate spheroidal drops in rotating disc contactor column
title_fullStr	Mass transfer process for prolate spheroidal drops in rotating disc contactor column
title_full_unstemmed	Mass transfer process for prolate spheroidal drops in rotating disc contactor column
title_sort	mass transfer process for prolate spheroidal drops in rotating disc contactor column
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Science
publishDate	2021
url	http://eprints.utm.my/id/eprint/102278/1/NurulNadiyaAbuPFS2021.pdf.pdf
_version_	1776100885757165568

Mass transfer process for prolate spheroidal drops in rotating disc contactor column

Similar Items