Abstract

Electrochemical redox methods and systems for implementing for continuous removal of hydrogen sulfide and other sulfur species from sour gas mixtures using transitional metal oxide, sulfide, or carbonate compounds which are regenerated. In one embodiment, in the overall reaction hydrogen sulfide is converted into hydrogen and sulfur: H2S(g) = H2(g) + S(s); applied ^E = 0.20 ~ 0.50 V The columbic efficiency of both methods generally exceeds 90%.

Document Type

Patent

Patent Number

US 8,647,497

Application Serial Number

13/352,016

Issue Date

2-11-2014

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

Florida Solar Energy Center (FSEC)

Department

FSEC

Allowance Date

10-4-2013

Filing Date

1-17-2012

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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