TY - JOUR
T1 - Recoverable and recyclable gas hydrate inhibitors based on magnetic nanoparticle-decorated metal–organic frameworks
AU - Lee, Dongyoung
AU - Jeoung, Sungeun
AU - Moon, Hoi Ri
AU - Seo, Yongwon
N1 - Funding Information:
This research was supported by the Basic Science Research Program (NRF-2019M2D2A1A02054875, NRF-2016R1A5A1009405, and 2020R1A2C3008908) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - In the oil and gas industries, the development of gas hydrate inhibitors is one of the most critical issues to prevent hydrate formation for flow assurance in pipelines. Low-dosage and recoverable/recyclable hydrate inhibitors are very important environmentally and economically. Herein, we propose a new class of kinetic hydrate inhibitors (KHIs) based on magnetic nanoparticle (NP)-decorated metal–organic frameworks (MOFs). As a KHI candidate, UiO-66 derivatives bearing different functional groups were examined, and UiO-66-NH2 showed superior performance with low dosage (1 wt%) in terms of the onset temperature of CH4 hydrate formation. To realize recoverability, magnetic Fe3O4 NPs were adopted to produce a core–shell-type composite, Fe3O4@UiO-66-NH2. This core–shell inhibitor was successfully recovered and reused, exhibiting a comparable performance to fresh UiO-66-NH2. This first example of a MOF as a KHI will contribute toward a new era of recoverable gas hydrate inhibitors.
AB - In the oil and gas industries, the development of gas hydrate inhibitors is one of the most critical issues to prevent hydrate formation for flow assurance in pipelines. Low-dosage and recoverable/recyclable hydrate inhibitors are very important environmentally and economically. Herein, we propose a new class of kinetic hydrate inhibitors (KHIs) based on magnetic nanoparticle (NP)-decorated metal–organic frameworks (MOFs). As a KHI candidate, UiO-66 derivatives bearing different functional groups were examined, and UiO-66-NH2 showed superior performance with low dosage (1 wt%) in terms of the onset temperature of CH4 hydrate formation. To realize recoverability, magnetic Fe3O4 NPs were adopted to produce a core–shell-type composite, Fe3O4@UiO-66-NH2. This core–shell inhibitor was successfully recovered and reused, exhibiting a comparable performance to fresh UiO-66-NH2. This first example of a MOF as a KHI will contribute toward a new era of recoverable gas hydrate inhibitors.
KW - Gas hydrate inhibitor
KW - Gas hydrates
KW - Inhibition mechanism
KW - Metal organic framework
KW - Recoverability
UR - http://www.scopus.com/inward/record.url?scp=85087386518&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2020.126081
DO - 10.1016/j.cej.2020.126081
M3 - Article
AN - SCOPUS:85087386518
SN - 1385-8947
VL - 401
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 126081
ER -