Nitrogen Rejection and Helium Recovery from Natural Gas by Dual Reflux Pressure Swing Adsorption Cycles

Roman Weh

Research output: ThesisDoctoral Thesis

273 Downloads (Pure)

Abstract

Methane and helium are both increasingly important to modern society; their recovery invariably requires nitrogen rejection. With the increasing demand, smaller unconventional sources of these gases need to be considered but conventional nitrogen removal technologies, like cryogenic processing, are only feasible at a large scale. In this thesis, the dual reflux pressure swing adsorption process was developed as a promising alternative to technology suitable for smaller-scale sources, with key advantages like mild operating conditions and low investment costs. The process could efficiently separate methane and nitrogen and a cascade process set-up was developed to recover helium from extremely dilute sources.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Supervisors/Advisors
  • May, Eric, Supervisor
  • Xiao, Gongkui, Supervisor
  • Graham, Brendan, Supervisor
  • Arami Niya, Arash, Supervisor
Thesis sponsors
Award date10 Jun 2022
DOIs
Publication statusUnpublished - 2022

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