Recoverable and recyclable gas hydrate inhibitors based on magnetic nanoparticle-decorated metal–organic frameworks

Dongyoung Lee, Sungeun Jeoung, Hoi Ri Moon, Yongwon Seo

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


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.

Original languageEnglish
Article number126081
JournalChemical Engineering Journal
StatePublished - 1 Dec 2020

Bibliographical note

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.


  • Gas hydrate inhibitor
  • Gas hydrates
  • Inhibition mechanism
  • Metal organic framework
  • Recoverability


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