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First investigation of modified poly(2-vinyl-4,4-dimethylazlactone)S as kinetic hydrate inhibitors

Ree, LHS, Kelland, MA, Roth, PJ and Batchelor, R (2016) First investigation of modified poly(2-vinyl-4,4-dimethylazlactone)S as kinetic hydrate inhibitors Chemical Engineering Science.

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Abstract

A series of polymers of 2-vinyl-4,4-dimethylazlactone (VDMA) of varying molecular weights modified with small organic amines have been synthesized. Their performance as kinetic hydrate inhibitors (KHIs) has been investigated in high pressure steel rocking cells using a Structure II-forming synthetic hydrocarbon gas mixture. It was found that the PVDMA polymer with the lowest molecular weight (Mn = 1845 g/mole by 1H NMR) performed the best. It was also found that the n-propylamine derivative performed the best of the amine derivatives. The cloud point of this polymer derivative was found to be lower than ambient temperature, which is considered too low for practical oilfield applications. However, high cloud point PVDMA derivatives such as the ethylamine or pyrrolidine derivatives still gave reasonable KHI performance. The KHI performance of the n-propylamine derivative of PVDMA-I was tested at different concentrations in the range 1000–7000 ppm. It was found that the performance improved as the polymer concentration was increased.

Item Type: Article
Subjects : Chemistry
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
AuthorsEmailORCID
Ree, LHSUNSPECIFIEDUNSPECIFIED
Kelland, MAUNSPECIFIEDUNSPECIFIED
Roth, PJUNSPECIFIEDUNSPECIFIED
Batchelor, RUNSPECIFIEDUNSPECIFIED
Date : 15 June 2016
Identification Number : 10.1016/j.ces.2016.06.031
Copyright Disclaimer : © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 Jun 2016 07:38
Last Modified : 17 Jun 2016 07:38
URI: http://epubs.surrey.ac.uk/id/eprint/811022

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