Demulsification of water-in-crude oil emulsions via microwave heating technology

Click here for a simple search.
[feed] Atom [feed] RSS 1.0 [feed] RSS 2.0
 
 

Hoo, Seng Tatt (2010) Demulsification of water-in-crude oil emulsions via microwave heating technology. Faculty of Chemical & Natural Resources Engineering , Universiti Malaysia Pahang .

[img]
Preview
PDF
2040Kb

Abstract

Traditional methods to separate water-in-crude oil emulsions like chemical demulsifiers are not environmentally-friendly, slow, separation not efficient, not cost effective and consume space for separation. The potentials of microwave energy in demulsification of water-in-crude oil emulsions were investigated. In this study, stability tests, gravity settling, microwave heating and microwave separation were studied. Microwave demulsification was applied in 50/50 and 20/80 water-in-crude oil emulsions with microwave exposure time varied from 120-180 seconds. As the sludge is heated, viscosity is lowered, and rapid coalescence of liquid phases takes place. Once the liquid phases coalesce, separation occurs through natural gravity. No chemicals are needed to force separation. Three different parameters were being investigated on the effect of separation namely volume ratio of water-in-oil emulsions, different emulsifiers and power generations of microwave. The four emulsifiers used were SDDS, Span 83, Triton X-100 and Tween 80. The power generations were 360 and 540 watts respectively. 20/80 water-in-crude oil emulsion was the most stable among two volume ratios. Newtonian fluid was determined from stability tests. Viscosity decreased, shear stress increased and shear rate increased over rpm. Surface and interfacial tensions were determined. Water and oil separation efficiencies via gravity settling were low. Volumetric heat generation rate of microwave was high. Water and oil separation efficiencies of microwave were more efficient than gravity settling. Microwave causes molecular rotation and ionic conduction thus fast heating.

Item Type:Undergraduates Project Papers
Uncontrolled Keywords:Demulsification;Microwave heating
Subjects:T Technology > TP Chemical technology
Divisions:Faculty of Chemical & Natural Resources Engineering
ID Code:3231
Deposited By: Shamsor Masra Othman
Deposited On:04 Jan 2013 10:29
Last Modified:03 Mar 2015 16:00

Repository Staff Only: item control page

 

 

 

 

 

 

Introduction

An Institutional Repository is an online focus for collecting, preserving, and disseminating any University publication in the digital form for the intellectual sharing.
The UMP Institutional Repository (UMP IR) provides access of University publication such as journal article, conference paper, research paper, thesis and dissertations.


Any Enquiries

Please email or call Knowledge Management staff:-

Pn. Noorul Farina (09-424 5605) OR
Cik Ratna Wilis Haryati (09-424 5612)

Any correspondence concerning this specific repository should be sent to umplibrary@ump.edu.my