A novel adsorption process, known as dual-reflux pressure swing adsorption (DR-PSA), has been used to effectively and efficiently separate methane from streams containing wide-ranging concentrations of nitrogen. Various operational parameters were explored to assess how they affect the process performance, from which a working theory for DR-PSA was developed to enable process design for a particular separation. An adsorbent with world-record methane-nitrogen selectivity was used to enrich dilute feeds from 2% to 50% methane at a recovery near 100%. Additionally, for the first time, a kinetically based DR-PSA separation was demonstrated to reject N2 from natural gas.
|Qualification||Doctor of Philosophy|
|Award date||25 Nov 2016|
|Publication status||Unpublished - 2016|