Vehicular Quality Biomethane Production from Biogas by Using an Automated Water Scrubbing System

Table 2

Performance of automated water scrubbing system.

Column pressure, MPa	Biogas in-flow rate, m^3/h	Water in-flow rate, m^3/h	CO2 remained in enriched biogas, %	Performance index (σ), %
0.8	1.0	1.5	5.0	88.8
	1.5	1.5	3.5	92.3
	2.0	1.5	4.0	91.1
	2.5	1.5	6.5	85.2
	3.0	2.0	8.5	80.3
1.0	1.0	1.5	4.0	91.1
	1.5	1.5	5.0	88.8
	2.0	1.5	3.5	92.3
	2.5	2.0	3.0	93.4
	3.0	2.5	5.0	88.8