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Title: Antiagglomerants Affect Gas Hydrate Growth

Abstract

In gas clathrate hydrates, inclusion gas molecules stabilize crystalline water structures. In addition to being fundamentally interesting, gas hydrates attract significant practical attention because of their possible application in various high-tech technologies. However, gas hydrates pose health, safety, and environmental risks when they form within oil and gas pipelines, as well as within hydrocarbon-producing and treatment facilities. Among available strategies to control and sometimes prevent hydrate plug formation is the use of surface-active low-molecular-weight compounds, known as antiagglomerants (AAs). AAs prevent the agglomeration of small hydrate particles into large plugs. It is not clear whether AAs promote or frustrate hydrate growth. We present two molecular mechanisms by which AAs promote and frustrate, respectively, hydrate growth. Our results could lead to innovative methodologies for managing hydrates in high-tech applications, as well as for securing the safety of oil and gas operations.

Authors:
 [1]; ORCiD logo [1];  [2];  [2];  [2];  [2]; ORCiD logo [1]
  1. Univ. College London, London (United Kingdom). Dept. of Chemical Engineering
  2. Halliburton, Houston, TX (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1543668
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry Letters
Additional Journal Information:
Journal Volume: 9; Journal Issue: 12; Journal ID: ISSN 1948-7185
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemistry; Science & Technology - Other Topics; Materials Science; Physics

Citation Formats

Bui, Tai, Sicard, Francois, Monteiro, Deepak, Lan, Qiang, Ceglio, Mark, Burress, Charlotte, and Striolo, Alberto. Antiagglomerants Affect Gas Hydrate Growth. United States: N. p., 2018. Web. doi:10.1021/acs.jpclett.8b01180.
Bui, Tai, Sicard, Francois, Monteiro, Deepak, Lan, Qiang, Ceglio, Mark, Burress, Charlotte, & Striolo, Alberto. Antiagglomerants Affect Gas Hydrate Growth. United States. doi:10.1021/acs.jpclett.8b01180.
Bui, Tai, Sicard, Francois, Monteiro, Deepak, Lan, Qiang, Ceglio, Mark, Burress, Charlotte, and Striolo, Alberto. Mon . "Antiagglomerants Affect Gas Hydrate Growth". United States. doi:10.1021/acs.jpclett.8b01180. https://www.osti.gov/servlets/purl/1543668.
@article{osti_1543668,
title = {Antiagglomerants Affect Gas Hydrate Growth},
author = {Bui, Tai and Sicard, Francois and Monteiro, Deepak and Lan, Qiang and Ceglio, Mark and Burress, Charlotte and Striolo, Alberto},
abstractNote = {In gas clathrate hydrates, inclusion gas molecules stabilize crystalline water structures. In addition to being fundamentally interesting, gas hydrates attract significant practical attention because of their possible application in various high-tech technologies. However, gas hydrates pose health, safety, and environmental risks when they form within oil and gas pipelines, as well as within hydrocarbon-producing and treatment facilities. Among available strategies to control and sometimes prevent hydrate plug formation is the use of surface-active low-molecular-weight compounds, known as antiagglomerants (AAs). AAs prevent the agglomeration of small hydrate particles into large plugs. It is not clear whether AAs promote or frustrate hydrate growth. We present two molecular mechanisms by which AAs promote and frustrate, respectively, hydrate growth. Our results could lead to innovative methodologies for managing hydrates in high-tech applications, as well as for securing the safety of oil and gas operations.},
doi = {10.1021/acs.jpclett.8b01180},
journal = {Journal of Physical Chemistry Letters},
number = 12,
volume = 9,
place = {United States},
year = {2018},
month = {6}
}

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Cited by: 6 works
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