Imperial College London
Alternate

prof paul f. luckham

Faculty of Engineering, Department of Chemical Engineering

Professor in Particle Technology
 
 
 
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Contact

 

+44 (0)20 7594 5583p.luckham01 Website

 
 
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Assistant

 

Miss Jessica Baldock +44 (0)20 7594 5699

 
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Location

 

104Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lew:2022:10.3390/polym14030405,
author = {Lew, JH and Matar, OK and Müller, EA and Maung, MTM and Luckham, PF},
doi = {10.3390/polym14030405},
journal = {Polymers},
pages = {405--405},
title = {Adsorption of hydrolysed polyacrylamide onto calcium carbonate},
url = {http://dx.doi.org/10.3390/polym14030405},
volume = {14},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Carbonate rock strengthening using chemical techniques is a strategy to prevent excessive fines migration during oil and gas production. We provide herein a study of the adsorption of three types of hydrolysed polyacrylamide (HPAM) of different molecular weight (F3330S, 11–13 MDa; F3530 S, 15–17 MDa; F3630S, 18–20 MDa) onto calcium carbonate (CaCO3) particles via spectrophotometry using a Shimadzu UV-2600 spectrometer. The results are compared to different adsorption isotherms and kinetic models. The Langmuir isotherm shows the highest correlation coefficient (R2 > 0.97) with equilibrium parameters (RL) ranging between 0 and 1 for all three HPAMs, suggesting a favorable monolayer adsorption of HPAM onto CaCO3. The adsorption follows pseudo-second order kinetics, indicating that the interaction of HPAM with CaCO3 is largely dependent on the adsorbate concentration. An adsorption plot reveals that the amount of HPAM adsorbed onto CaCO3 at equilibrium increases with higher polymer molecular weight; the equilibrium adsorbed values for F3330S, F3530S and F3630S are approximately 0.24 mg/m2, 0.31 mg/m2, and 0.43 mg/m2, respectively. Zeta potential analysis shows that CaCO3 has a zeta potential of +12.32 mV, which transitions into negative values upon introducing HPAM. The point of zero charge (PZC) is observed at HPAM dosage between 40 to 50 ppm, in which the pH here lies between 9–10.
AU  - Lew,JH
AU  - Matar,OK
AU  - Müller,EA
AU  - Maung,MTM
AU  - Luckham,PF
DO  - 10.3390/polym14030405
EP  - 405
PY  - 2022///
SN  - 2073-4360
SP  - 405
TI  - Adsorption of hydrolysed polyacrylamide onto calcium carbonate
T2  - Polymers
UR  - http://dx.doi.org/10.3390/polym14030405
UR  - https://www.mdpi.com/2073-4360/14/3/405
UR  - http://hdl.handle.net/10044/1/94871
VL  - 14
ER  -
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