Screening of Pure ILs and DESs for CO₂ Separation, N₂O Separation, and H₂S Separation Processes

Table 4

The optimal conditions (T_s, P_a), the absorbent amounts (m_abs), and the energy consumption (Q_tot) of the commercial absorbents.

Absorbents	Gas streams	Ts (K)	Pa (bar)	mabs (g∙gX^−1)	Qtot (GJ∙tonX^−1)
30 wt %; MEA	Effluent gases	373.15–393.15	75.18–105.16	2.31–1.97	5.29–5.57
	Kiln gas	373.15–393.15	102.66–144.38	2.20–1.89	3.88–4.05
	Biomass syngas	373.15–393.15	65.20–114.38	2.36–1.95	3.28–3.37
	Biogas [11]	373.15–393.15	6.50–23.73	3.51–2.43	3.80–3.84
30 wt %; MDEA	Effluent gases	373.15–393.15	39.10–53.78	2.34–2.02	3.79–4.10
	Kiln gas	373.15–393.15	54.12–74.71	2.23–1.94	2.94–3.17
	Biomass syngas	373.15–393.15	45.56–80.19	2.29–1.92	2.77–3.01
	Biogas [11]	373.15–393.15	0.96–2.64	5.70–3.66	2.66–2.50
DEPG for selexol	Effluent gases	299.15–323.15	16.68–102.43	200.57–12.29	1.75–2.55
	Kiln gas	299.15–323.15	9.08–54.03	157.58–10.54	0.92–1.28
	Biomass syngas	299.15–323.15	7.97–55.07	143.82–7.36	0.82–1.13
	Biogas [11]	299.15–323.15	6.38–36.11	128.45–9.40	0.69–0.88
H2O	High-sulfur natural gas	299.15–323.15	11.77–119.58	102.88–7.14	0.77–1.56