Synthesis of methyl mercaptan from carbon oxides and H2S with tungsten—alumina catalysts

Barrault, J.; Boulinguiez, M.; Forquy, C.; Maurel, R.

doi:10.1016/s0166-9834(00)83064-x

Cited by 45 publications

(54 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the varying regularity of the selectivity to carbon sulfide as a function of K 2 MoO 4 loading is just the same as that of mathenethiol. This suggests that carbon dioxide and methanethoil are derivatives of carbon sulfide, which are, respectively, formed by the hydrolysis and hydrogenation of carbon sulfide, which is in line with the results reported in the literatures [6,7]. The catalytic performance of the catalyst K 2 MoO 4 /NiSiO 2 (12/0.82/100) for methanethiol synthesis after thermal treatment at 673 K in H 2 S-rich synthesis gas as a function of treatment time is presented in Table 3.…”

Section: Catalytic Performance Studysupporting

confidence: 92%

“…The synthesis of methanethoil from carbon oxides (CO or CO 2 ), hydrogen and hydrogen sulfide over supported catalysts has been widely investigated since 1980s [1][2][3][4][5][6][7][8][9]. The catalyst system used in the literature was composed of an active component molybdenum or tungsten with an alkali metal as a promoter and an oxide support.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on Methanethiol Synthesis from H2S-Rich Syngas Over K2MoO4 Catalyst Supported on Electrolessly Ni-Plated SiO2

et al. 2009

View full text Add to dashboard Cite

Small amount of Nickel deposited on SiO2 support by electroless plating was verified to have a significant promoting effect on the catalytic performance of the K2MoO4/SiO2 catalyst for methanethiol synthesis from H2S-rich synthesis gas. The addition of Nickel was found to be in favor of the suppression of the CO2 formation. The results of BET, TPR and Raman characterizations for the Ni-modified SiO2 and the catalyst K2MoO4/Ni-SiO2 showed that the surface properties of Ni-modified SiO2 were similar to those of unmodified SiO2 and that no Raman characteristic band specific to NiO from the catalyst K2MoO4/Ni-SiO2 was detected. For oxidic K2MoO4/Ni-SiO2 catalyst lower reduction temperature was measured. For sulfided catalysts, reduced molybdenum oxides and oxysulfides were detected, which was inferred to be closely related to high catalytic activity of the catalyst.GmbH (Germany

show abstract

Section: Catalytic Performance Studysupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Study on Methanethiol Synthesis from H2S-Rich Syngas Over K2MoO4 Catalyst Supported on Electrolessly Ni-Plated SiO2

et al. 2009

View full text Add to dashboard Cite

show abstract

“…3b. 14 It is obvious that the oxidizer K 3 Fe(CN) 6 produces a different surface tungsten-oxide layer (K 2 WO 4 ) from the oxidizer Fe(NO 3 ) 3 (WO 3 ). This result would be a major reason why the polishing rate and SER of the tungsten film dipped into the 2.0 wt%-K 3 Fe(CN) 6 solution regardless of the addition of 2.0-wt%-H 2 O 2 were higher than those dipped into the 2.0-wt%-Fe(NO 3 ) 3 solution regardless of the addition of 2.0-wt%-H 2 O 2 .…”

Section: Resultsmentioning

confidence: 99%

Effect of Potassium Ferricyanide in the Acid Solution on Performance of Tungsten Chemical Mechanical Planarization

Lim

Park

2012

J. Electrochem. Soc.

View full text Add to dashboard Cite

We investigated the effect of the oxidizer K 3 Fe(CN) 6 on the performance of chemical mechanical planarization (CMP) of tungsten film using the acid slurry. The addition of K 3 Fe(CN) 6 in the acid slurry formed the K 2 WO 4 layer on the tungsten film surface, thereby increasing the polishing rate and decreasing the surface roughness of the tungsten film after CMP, which demonstrated better CMP performance than the oxidizer Fe(NO 3 ) 3 . Furthermore, the addition of H 2 O 2 in the acid solution including K 3 Fe(CN) 6 enhances the chemical dissolution rate of the K 2 WO 4 layer on the tungsten film surface, considerably increasing the polishing rate and decreasing surface roughness of the tungsten film.

show abstract

“…COS may also serve as carbon source [5e] and as intermediate for converting CO/H 2 / H 2 S into methanethiol [26], which is also found in volcanic gases [27]:…”

mentioning

confidence: 99%

On the Chemistry and Evolution of the Pioneer Organism

Wächtershäuser¹

2007

Chemistry & Biodiversity

229

142

View full text Add to dashboard Cite

The theory of a chemo-autotrophic origin of life in a volcanic Iron-Sulfur World postulates the emergence of a pioneer organism within a flow of volcanic exhalations. The pioneer organism is characterized by a composite structure with an inorganic substructure and an organic superstructure. Within the surfaces of the inorganic substructure, iron, cobalt, nickel, and other transition-metal centers with sulfido, carbonyl, cyano, and other ligands are catalytically active, and promote the growth of the organic superstructure through carbon fixation, driven by the reducing potential of the volcanic exhalations. This pioneer organism is reproductive by an autocatalytic feedback effect, whereby some organic products serve as ligands for activating the catalytic metal centres whence they arise. This unitary structure-function relationship of the pioneer organism constitutes the 'Anlage' for two major strands of evolution: enzymatization and cellularization, whereby the upward evolution of life by increase of molecular complexity is grounded ultimately in the transition metal-catalyzed, synthetic redox chemistry of the pioneer organism.

show abstract

Synthesis of methyl mercaptan from carbon oxides and H2S with tungsten—alumina catalysts

Cited by 45 publications

References 15 publications

Study on Methanethiol Synthesis from H2S-Rich Syngas Over K2MoO4 Catalyst Supported on Electrolessly Ni-Plated SiO2

Study on Methanethiol Synthesis from H2S-Rich Syngas Over K2MoO4 Catalyst Supported on Electrolessly Ni-Plated SiO2

Effect of Potassium Ferricyanide in the Acid Solution on Performance of Tungsten Chemical Mechanical Planarization

On the Chemistry and Evolution of the Pioneer Organism

Contact Info

Product

Resources

About