Measurement of self-diffusion coefficient of asphaltene in pyridine by pulsed field gradient spin-echo 1H NMR

K. Norinaga, V. J. Wargardalam, S. Takasugi, M. Iino, S. Matsukawa

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Measurement of self-diffusion coefficient of asphaltene in pyridine is presented. The measurement is performed by pulsed field gradient spin-echo 1H nuclear magnetic resonance (PFG-1H NMR. The diffusion coefficient provides information concerning molecular size and aggregation states. The PFG 1H NMR measurements are most suitable as it is possible to determine the displacement of proton in the time interval between the two gradient pulses applied in the pulse sequence.

Original languageEnglish
Pages (from-to)1317-1318
Number of pages2
JournalEnergy and Fuels
Volume15
Issue number5
DOIs
Publication statusPublished - Sept 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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