Table 4.

Operative conditions and efficiency for H₂S-removal over various catalysts.

Catalysts	NTP Technology	Operative Conditions	H2S Conversion (%)	Ref.
CdS/Al2O3	DBD	10 kHz, 6.12 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	90.9	[66]
ZnS/Al2O3	DBD	10 kHz, 6.12 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	82.9	[66]
Zn0.4Cd0.6S/Al2O3	DBD	10 kHz, 6.12 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	97.9	[66]
Zn0.6Cd0.4S/Al2O3	DBD	10 kHz, 6.12 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	100	[68]
Zn0.2Cd0.8S/Al2O3	DBD	10 kHz, 6.12 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	92.8	[68]
Zn0.8Cd0.2S/Al2O3	DBD	10 kHz, 6.12 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	84.9	[68]
Cr0.20–ZnS/Al2O3	DBD	10 kHz, 5.57 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	100	[69]
Cr0.25–ZnS/Al2O3	DBD	10 kHz, 5.57 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	89.7	[69]
Cr0.15–ZnS/Al2O3	DBD	10 kHz, 5.57 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	87.4	[69]
Cr0.10–ZnS/Al2O3	DBD	10 kHz, 5.57 eV/H2 20% O2 in Ar Reacting flow rate: 30 mL min−1 1 atm, 120 °C	81.8	[69]
1-wt% MoS2/Al2O3	DBD	10 kHz, 95 kJ·L−1 H2S/CO2 ratio = 20:15 Reacting flow rate: 35 mL min−1 1 atm, 120 °C	94	[70]
5-wt% MoS2/Al2O3	DBD	10 kHz, 95 kJ·L−1 H2S/CO2 ratio = 20:15 Reacting flow rate: 35 mL min−1 1 atm, 120 °C	99	[70]
10-wt% MoS2/Al2O3	DBD	10 kHz, 95 kJ·L−1 H2S/CO2 ratio = 20:15 Reacting flow rate: 35 mL min−1 1 atm, 120 °C	97	[70]
15-wt% MoS2/Al2O3	DBD	10 kHz, 95 kJ·L−1 H2S/CO2 ratio = 20:15 Reacting flow rate: 35 mL·min−1 1 atm, 120 °C	92	[70]
3-wt% MoOx/Al2O3	DBD	10 kHz, 1 W 5% H2S/Ar Reacting flow rate: 150 mL min−1 1 atm, 160 °C	48	[71]
5-wt% MoOx/Al2O3	DBD	10 kHz, 1 W 5% H2S/Ar Reacting flow rate: 150 mL min−1 1 atm, 160 °C	52	[71]
7-wt% MoOx/Al2O3	DBD	10 kHz, 1 W 5% H2S/Ar Reacting flow rate: 150 mL min−1 1 atm, 160 °C	45	[71]
Fe/WSAC Treated for 10 min at 6.8 kV	DBD	7.8 kHz, 6.8 kV 500 ppm of H2S in N2 Reacting flow rate: 60 mL min−1 1 atm, 60 °C	100 for 270 min	[72]
Fe/WSAC Treated for 10 min at 6.8 kV with a gas gap of 5.5 mm and a dielectric thickness of 1.5 mm	DBD	7.8 kHz, 6.8 kV 500 ppm of H2S in N2 Reacting flow rate: 60 mL min−1 1 atm, 60 °C	100 for 210 min	[73]
La0.9MnO3	DBD	10 kHz, 593.7 J·L−1 100 ppm of H2S in air Reacting flow rate: 2 L min−1 1 atm, 80 °C	96.4	[74]
Mn2O3	DBD	50 Hz, 22 kV 200 mg m−3 H2S, 1200-mg·m−3 O3 in air Reacting flow rate: 0.2 m3 h−1	100	[75]
Ag2O	DBD	50 Hz, 22 kV 200 mg m−3 H2S, 1200-mg m−3 O3 in air Reacting flow rate: 0.2 m3 h−1	98	[75]
CuO	DBD	50 Hz, 22 kV 200 mg m−3 H2S, 1200-mg·m−3 O3 in air Reacting flow rate: 0.2 m3 h−1	82	[75]
Fe2O3	DBD	50 Hz, 22 kV 200 mg m−3 H2S, 1200-mg m−3 O3 in air Reacting flow rate: 0.2 m3 h−1	75	[75]