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Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution

Understanding the mechanism of solid scale dissolution at a molecular level is important to formulate a new chemical dissolver. A molecular dynamics simulation between glutamic acid diacetic acid (GLDA) with calcite was performed to understand the intermolecular interaction between the carboxylic g...

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Main Authors: Muhamad Hadi, Sulaiman, Fatmawati, Adam, Zulkefli, Yaacob, Mohamad Zulhelmy, Sujak, Zulhaizan, Mohd Noor
Format: Article
Language:English
Published: Universiti Putra Malaysia 2020
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/28253/1/Intermolecular%20Interaction%20of%20Carboxylic%20Group.pdf
http://umpir.ump.edu.my/id/eprint/28253/
https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/article/view/458
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spelling my.ump.umpir.282532020-04-17T08:44:35Z http://umpir.ump.edu.my/id/eprint/28253/ Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution Muhamad Hadi, Sulaiman Fatmawati, Adam Zulkefli, Yaacob Mohamad Zulhelmy, Sujak Zulhaizan, Mohd Noor TP Chemical technology Understanding the mechanism of solid scale dissolution at a molecular level is important to formulate a new chemical dissolver. A molecular dynamics simulation between glutamic acid diacetic acid (GLDA) with calcite was performed to understand the intermolecular interaction between the carboxylic groups with calcium ions (Ca) during the dissolution process at 90 °C. Two solid scales obtained from oil wells were characterised using a scanning electron microscope (SEM) and energy dispersing x-ray (EDX). The dissolutions test of the solid scales were conducted using two ionic liquids solutions; 1-butyl-3-methylimidazolium hexafluorophosphate (Bmim-PF6) and tetrabutylammonium nonafluorobutane sulfonate (Tba-NfO) to evaluate the ionic liquids for solid scales dissolution. Hydroxyls (-OH) in the carboxylic groups of GLDA have strong intermolecular interactions with Ca that plays a role in the chelation process. Two of the carboxylic groups close to amine have the strongest interactions with calcium ions in calcite. Characterisations result shows that the two solid scales are silica-based and barite based. Barite scales have kink-terrace-step crystal surface. Dissolutions test shows that both ionic liquids solutions can dissolve the silica solid scale up to 2700 ppm. Universiti Putra Malaysia 2020 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28253/1/Intermolecular%20Interaction%20of%20Carboxylic%20Group.pdf Muhamad Hadi, Sulaiman and Fatmawati, Adam and Zulkefli, Yaacob and Mohamad Zulhelmy, Sujak and Zulhaizan, Mohd Noor (2020) Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution. Malaysian Journal of Microscopy, 16 (1). pp. 205-216. ISSN 1823-7010 https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/article/view/458
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Muhamad Hadi, Sulaiman
Fatmawati, Adam
Zulkefli, Yaacob
Mohamad Zulhelmy, Sujak
Zulhaizan, Mohd Noor
Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution
description Understanding the mechanism of solid scale dissolution at a molecular level is important to formulate a new chemical dissolver. A molecular dynamics simulation between glutamic acid diacetic acid (GLDA) with calcite was performed to understand the intermolecular interaction between the carboxylic groups with calcium ions (Ca) during the dissolution process at 90 °C. Two solid scales obtained from oil wells were characterised using a scanning electron microscope (SEM) and energy dispersing x-ray (EDX). The dissolutions test of the solid scales were conducted using two ionic liquids solutions; 1-butyl-3-methylimidazolium hexafluorophosphate (Bmim-PF6) and tetrabutylammonium nonafluorobutane sulfonate (Tba-NfO) to evaluate the ionic liquids for solid scales dissolution. Hydroxyls (-OH) in the carboxylic groups of GLDA have strong intermolecular interactions with Ca that plays a role in the chelation process. Two of the carboxylic groups close to amine have the strongest interactions with calcium ions in calcite. Characterisations result shows that the two solid scales are silica-based and barite based. Barite scales have kink-terrace-step crystal surface. Dissolutions test shows that both ionic liquids solutions can dissolve the silica solid scale up to 2700 ppm.
format Article
author Muhamad Hadi, Sulaiman
Fatmawati, Adam
Zulkefli, Yaacob
Mohamad Zulhelmy, Sujak
Zulhaizan, Mohd Noor
author_facet Muhamad Hadi, Sulaiman
Fatmawati, Adam
Zulkefli, Yaacob
Mohamad Zulhelmy, Sujak
Zulhaizan, Mohd Noor
author_sort Muhamad Hadi, Sulaiman
title Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution
title_short Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution
title_full Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution
title_fullStr Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution
title_full_unstemmed Intermolecular Interaction of Carboxylic Group with Calcium Ions and Dissolution of Solid Scales in Bmim-PF6 and Tba-NfO Ionic Liquid Solution
title_sort intermolecular interaction of carboxylic group with calcium ions and dissolution of solid scales in bmim-pf6 and tba-nfo ionic liquid solution
publisher Universiti Putra Malaysia
publishDate 2020
url http://umpir.ump.edu.my/id/eprint/28253/1/Intermolecular%20Interaction%20of%20Carboxylic%20Group.pdf
http://umpir.ump.edu.my/id/eprint/28253/
https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/article/view/458
_version_ 1665895008882917376
score 13.211869

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