Heterogeneous catalyst for hydrocarbon sweetening
AssigneeKing Fahd University of Petroleum and Minerals
InventorsSagheer A. ONAIZI, Reyad SHAWABKEH, Zuhair Omar MALAIBARI, Nabeel Salim ABU-GHANDER
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Abstract
A two or particularly three-phase process, and corresponding apparatus, desulfurizes sour hydrocarbon gas, e.g., natural gas, generally better than known, using a fixed-bed, two-phase processes in terms of the amount of H2S scavenged and the breakthrough time of H2S. The three-phase process is effective in scavenging H2S at ambient temperature and pressure, using a copper salt catalyst impregnated on alumina or other generally inert support, which is regenerable.
Claims11
(canceled)
The heterogeneous desulfurization catalyst of claim 21, wherein at least 99 mol % of the copper in the copper (II) salt is copper (II).
The heterogeneous desulfurization catalyst of claim 21, wherein the copper (II) salt comprises Cu(NO3)2.
The heterogeneous desulfurization catalyst of claim 21, wherein the copper (II) salt comprises CuCl2.
The heterogeneous desulfurization catalyst of claim 21, wherein the copper (II) salt comprises CuCO3.
6-16. (canceled)
The heterogeneous desulfurization catalyst of claim 22, wherein the aqueous suspension comprises at least 95 wt. % water, based on total liquids in the aqueous suspension.
18-20. (canceled)
A heterogeneous desulfurization catalyst for hydrocarbon sweetening, comprising:
- a solid catalyst comprising:
- a support comprising Al2O3 in an amount of at least 95 wt. %, based upon total support weight, the support being inert to desulfurization at ambient conditions;
- copper (II) ions upon and impregnated within the support in an amount of at least 95 wt. %, based upon total catalytically active metals in the catalyst at the ambient conditions, and
- a liquid comprising at least 75 wt. % H2O, based upon total solvent weight,
- wherein the Al2O3 is α-Al2O3,
- wherein the copper salt is selected from the group consisting of Cu(NO3)2, CuCl2 and Cu(CO3)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 solid catalyst comprises the copper (II) salt in an amount of from 16 to 17 wt. %, based on a total weight of the solid catalyst, and
- wherein the solid catalyst comprises no activated carbon.
Dependencies are inferred from the claim text.