A flow-through, elevated-temperature and -pressure NMR apparatus for in-situ CO2 sequestration studies

Erika L. Sesti, Jinlei Cui, Sophia E. Hayes, Mark S. Conradi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We report an apparatus for in-situ nuclear magnetic resonance (NMR) studies of chemical reactions of dissolved 13CO2 with minerals (rock or powder) under continuous flow. The operating range of the apparatus is 18–150 °C and 1–140 bar. A flow pump is used to circulate a CO2-water solution, with a heated mixing vessel where CO2 gas equilibrates with a water solution. The NMR probe is built around a strong zirconia ceramic vessel, with o-ring sealed connections; the mineral is contained inside. The horizontal orientation of the zirconia vessels allows use of a radio frequency (rf) solenoid for improved spin sensitivity.

Original languageEnglish (US)
Pages (from-to)136-141
Number of pages6
JournalJournal of Magnetic Resonance
Volume282
DOIs
StatePublished - Sep 2017

Keywords

  • CO reactions
  • High-pressure
  • High-temperature
  • In-situ monitoring
  • NMR probe

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Biophysics
  • Biochemistry

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