Title

Application Of A Novel Nahs-Na2S2 Desulfurization Process

Abstract

A NaHS-Na2S2 red-ox system can be applied as a novel desulfurization process that consists of two steps: (I). Hydrogen production via photooxidation of aqueous NaHS solution; (II). Sulfur precipitation and NaHS generation via H2S scrubbing using Na2S2. High H2 production rates have been demonstrated via photolysis of aqueous NaHS solutions. The H2S scrubbing results indicated that sulfur precipitation requires [H2S] greater than 5.0 vol.% to lower Na2S2 solution pH below 7.65. Therefore, an H2S concentration step is needed prior to H2S scrubbing. In addition, H2S re-circulation may be required when the pH of Na2S2 solution is below 8.5 due to reduced scrubbing efficiencies. The results indicate that this process can potentially be utilized for the removal of H2S from a diesel pre-reforming stream or from a natural gas stream.

Publication Date

12-31-2007

Publication Title

ACS National Meeting Book of Abstracts

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

37349020781 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/37349020781

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