US 11,731,080 B2
Method of sweetening hydrocarbon gas from hydrogen sulfide
Sagheer A. Onaizi, Dhahran (SA); Reyad Shawabkeh, Dhahran (SA); Zuhair Omar Malaibari, Dhahran (SA); and Nabeel Salim Abu-Ghander, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Dec. 21, 2018, as Appl. No. 16/230,753.
Prior Publication US 2020/0197865 A1, Jun. 25, 2020
Int. Cl. B01D 53/86 (2006.01); B01D 53/52 (2006.01); B01D 53/80 (2006.01); B01D 53/82 (2006.01); B01D 53/96 (2006.01); B01J 27/055 (2006.01); B01J 27/12 (2006.01); B01J 27/25 (2006.01); B01J 21/04 (2006.01); B01J 21/18 (2006.01); B01J 23/72 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); C10L 3/10 (2006.01); B01J 27/122 (2006.01)
CPC B01D 53/8612 (2013.01) [B01D 53/52 (2013.01); B01D 53/80 (2013.01); B01J 27/055 (2013.01); B01J 27/122 (2013.01); B01J 27/25 (2013.01); C10L 3/103 (2013.01); B01D 2255/20761 (2013.01); B01D 2256/24 (2013.01); B01D 2256/245 (2013.01); B01D 2257/304 (2013.01); B01J 21/04 (2013.01); B01J 21/18 (2013.01); B01J 2523/17 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of reducing an initial H2S content in a gas mixture, the method comprising:
passing the gas mixture, comprising H2S and a hydrocarbon, through an aqueous suspension of a solid catalyst comprising a copper salt impregnated on an α-Al2O3 support; and
separating a second gas from the gas mixture passed through the aqueous suspension comprising at least 90 wt. % of liquid water, the second gas having an at least 95% reduced H2S content relative to the gas mixture,
wherein the solid catalyst comprises at least 95 wt. % copper, based upon a total active metal content in the solid catalyst,
wherein at least 90 mol % of the copper in the copper salt is copper (II),
wherein the copper salt is selected from the group consisting of Cu(NO3)2, CuCl2, Cu(CO3), Cu(HCO3)2, Cu(SO4), and mixtures thereof,
wherein the solid catalyst comprises less than 1 wt. % CuO and less than 1 wt. % Fe, based upon the total active metal content in the solid catalyst,
wherein the support comprises at least 90 wt. % alumina, based on a total weight of the support,
wherein the catalyst comprises the copper salt in an amount of from 15 to 18 wt. %, based on a total weight of the solid catalyst, and
wherein the solid catalyst comprises no activated carbon.