Enrichment and Separation of Methane Gas by Vacuum Pressure Swing Adsorption

Table 3

Adsorption tower parameters.

Parameter	Value	Unit	Description
Hb	500	mm	Height of adsorbent layer
Db	60	mm	Internal diameter adsorbent layer
Ei	0.38	m^3void/m^3bed	Interparticle voidage
Ep	0.7	m^3void/m^3bed	Intraparticle voidage
RHOs	512	kg/m^3	Bulk solid density of adsorbent
Rp	0.0012	m	Adsorbent particle radius
Sfac	0.83	n/a	Adsorbent shape factor
MTC (“CH4”)	0.049	1/s	Constant mass transfer coefficients
MTC (“N2”)	0.092	1/s	Constant mass transfer coefficients