Deuterium Distribution in Crude Oil

Feurdean, V.; Feurdean, L.; Lari, I.

doi:10.1080/10256019708234051

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…12 The deuterium concentration in hydrocarbons falls within the same range as water. 13 In protium production mode, the distillation column produces protium as the pure product, while the HD component is accumulated in the reboiler and discharged.…”

Section: Source Gas and On-line Analysismentioning

confidence: 99%

Cryogenic distillation facility for isotopic purification of protium and deuterium

Alekseev

Arkhipov

Bondarenko

et al. 2015

Review of Scientific Instruments

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Isotopic purification of the protium and deuterium is an important requirement of many physics experiments. A cryogenic facility for high-efficiency separation of hydrogen isotopes with a cryogenic distillation column as the main element is described. The instrument is portable, so that it can be used at the experimental site. It was designed and built at the Petersburg Nuclear Physics Institute, Gatchina, Russia. Fundamental operating parameters have been measured including a liquid holdup in the column packing, the pressure drops across the column and the purity of the product at different operating modes. A mathematical model describes expected profiles of hydrogen isotope concentration along the distillation column. An analysis of ortho-parahydrogen isomeric composition by gas chromatography was used for evaluation of the column performance during the tuning operations. The protium content during deuterium purification (≤100 ppb) was measured using gas chromatography with accumulation of the protium in the distillation column. A high precision isotopic measurement at the Institute of Particle Physics, ETH-Zurich, Switzerland, provided an upper bound of the deuterium content in protium (≤6 ppb), which exceeds all commercially available products.

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Section: Source Gas and On-line Analysismentioning

confidence: 99%