Equilibrium Data of Carbonyl Sulfide and Hydrogen Sulfide Clathrate Hydrates

2009 ◽  
Vol 54 (8) ◽  
pp. 2338-2340 ◽  
Author(s):  
Amir H. Mohammadi ◽  
Dominique Richon
Keyword(s):  
Hydrogen Sulfide ◽  
Carbonyl Sulfide ◽  
Clathrate Hydrates ◽  
Equilibrium Data

A solid thermal and fast synthesis of MgAl-hydrotalcite nanosheets and their applications in the catalytic elimination of carbonyl sulfide and hydrogen sulfide

2021 ◽  
Vol 45 (7) ◽  
pp. 3535-3545
Author(s):  
Guanqing Zhang ◽  
Xun Kan ◽  
Yong Zheng ◽  
Yanning Cao ◽  
Shijiang Liang ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Carbonyl Sulfide ◽  
Superior Performance ◽  
Fast Synthesis

MgAl hydrotalcites with high exposed OH− sites were designed, and showed superior performance for the catalytic elimination of COS and H2S.

Moving Past Quinone-Methides: Recent Advances toward Minimizing Electrophilic Byproducts from COS/H2S Donors

2021 ◽  
Vol 21 ◽  
Author(s):  
Michael Pluth
Keyword(s):  
Hydrogen Sulfide ◽  
Carbonic Anhydrase ◽  
Therapeutic Potential ◽  
Carbonyl Sulfide ◽  
Quinone Methide ◽  
Quinone Methides ◽  
On Demand ◽  
Physiological Processes ◽  
Recent Approach ◽  
Alternative Approaches

: Hydrogen sulfide (H2S) is an important biomolecule that plays key signaling and protective roles in different physiological processes. With the goals of advancing both the available research tools and the associated therapeutic potential of H2S, researchers have developed different methods to deliver H2S on-demand in different biological contexts. A recent approach to develop such donors has been to design compounds that release carbonyl sulfide (COS), which is quickly converted to H2S in biological systems by the ubiquitous enzyme carbonic anhydrase (CA). Although highly diversifiable, many approaches using this general platform release quinone methides or related electrophiles after donor activation. Many such electrophiles are likely scavenged by water, but recent efforts have also expanded alternative approaches that minimize the formation of electrophilic byproducts generated after COS release. This mini-review focuses specifically on recent examples of COS-based H2S donors that do not generate quinone methide byproducts after donor activation.

scholarly journals Removal of sulfur contaminants from biogas to enable direct catalytic methanation

2019 ◽  
Author(s):  
Christian Dannesboe ◽  
John Bøgild Hansen ◽  
Ib Johannsen
Keyword(s):  
Hydrogen Sulfide ◽  
Dimethyl Sulfide ◽  
Renewable Energy Sources ◽  
Sulfur Removal ◽  
Carbonyl Sulfide ◽  
Acidithiobacillus Thiooxidans ◽  
Carbon Utilization ◽  
Combined System ◽  
Renewable Biomass ◽  
Biogas Reactor

AbstractIn the near future, renewable energy sources will replace fossil energy. To allow full carbon utilization of renewable biomass, we have demonstrated a possible integration between a biogas reactor, an electrolysis unit, and a catalytic methanation reactor. Stringent removal of all sulfur contaminants in raw biogas is required to enable this integration. We demonstrate how existing bulk sulfur removal solutions, like a biotrickling filter loaded with Acidithiobacillus thiooxidans and impregnated activated carbon, are unable to meet this requirement. Only the main sulfur contaminant hydrogen sulfide (H2S) can effectively be removed. Contaminants carbon disulfide (CS2), dimethyl sulfide (DMS), and carbonyl sulfide (COS) will leak through the carbon filter, long before hydrogen sulfide can be detected. Utilization of surplus oxygen from the combined system is proven problem free and allows sulfur removal without introducing contaminants. Provided that a recommended sulfur guard is included, the proposed design is ready for full-scale implementation.

scholarly journals Bio-orthogonal “click-and-release” donation of caged carbonyl sulfide (COS) and hydrogen sulfide (H2S)

2017 ◽  
Vol 53 (8) ◽  
pp. 1378-1380 ◽  
Author(s):  
Andrea K. Steiger ◽  
Yang Yang ◽  
Maksim Royzen ◽  
Michael D. Pluth
Keyword(s):  
Hydrogen Sulfide ◽  
Click Reaction ◽  
Carbonyl Sulfide ◽  
Diels Alder ◽  
Inverse Electron Demand ◽  
New Strategy ◽  
Electron Demand

The inverse-electron demand Diels–Alder (IEDDA) click reaction between thiocarbamate-functionalized trans-cyclooctenes and tetrazines provides a new strategy for bio-orthogonal COS/H2S delivery.

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