Patent · US Active

Natural gas desulfurization

US8187366B2 · kind B2 · utility

0Cited by

21References

18Claims

0Family size

Inventors

Ralph T. Yang · Middle Island, US
Yuhe Wang · Ann Arbor, US
Luis Amestica · Santiago, CL

Key dates

Filing date	Nov 3, 2008
Grant date	May 29, 2012
Priority date	—
Expiry date	Oct 16, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2259/4541
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for desulfurizing natural gas includes contacting the natural gas with an adsorbent which preferentially adsorbs at least one of hydrogen sulfide, COS, sulfur odorants, or combinations thereof, at a selected temperature and pressure, thereby producing desulfurized natural gas and an at least one of hydrogen sulfide/COS/sulfur odorant/combinations thereof-rich adsorbed component. The adsorbent includes a copper species adapted to form π-complexation bonds and direct metal-sulfur bonds with the at least one of hydrogen sulfide, COS, sulfur odorants, or combinations thereof, and wherein the preferential adsorption occurs by π-complexation and direct metal-sulfur bonding.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.