Supercritical phases of hydrogen

Ibrahimoglu B., Sarikaya Y., Veziroglu A., ÖNAL M., Gokbel B.

International Journal of Hydrogen Energy, cilt.46, sa.65, ss.32762-32767, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 65
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.ijhydene.2021.07.032
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, Environment Index, INSPEC
  • Sayfa Sayıları: ss.32762-32767
  • Anahtar Kelimeler: Hydrogen, Phase diagram, Chemical potential, Metastable state, Supercritical fluid, WATER GASIFICATION, COAL-GASIFICATION, HEATING RATE, CATALYTIC GASIFICATION, BIOMASS GASIFICATION, SEWAGE-SLUDGE, CONVERSION, EXTRACTION, GLUCOSE, HYDROPYROLYSIS
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2021 Hydrogen Energy Publications LLCUsing experimental data from literature [1], hydrogen density-pressure (ρ-P) and density-temperature (ρ-T) phase diagrams were drawn and evaluated for various pressure and temperature intervals. Solid, liquid, vapor, gas, supercritical liquid, supercritical gas and supercritical fluid regions were identified on the obtained diagrams. There are exact equilibrium boundaries between subcritical phases. On the contrary, it is concluded that there are no such exact boundaries for supercritical phases. Formation of the supercritical fluid between liquid and gas phases explained thermodynamically with first and second order partial derivatives of chemical potential relative to pressure at constant temperature.