Catalyst for preparing methyl mercaptan from synthesized gas containing high concentration of hydrogen sulfide

Catalyst for preparing methyl mercaptan from synthesized gas containing high concentration of hydrogen sulfide

The catalyst has one carrier of SiO2, gamma-Al2O3 or TiO2 and its active component Mo-S-K radical is transformed from precursor K2MoS4 or (NH4)2MoS4+K2CO3. Its transition of RE metal oxide promoter are mainly metal oxide of Mn, Fe, Co, Ni, La, etc. Under the conditions of 295 deg.c temperature, 0.2M...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHENJUN DAI, RENCUN LIN, YIQUAN YANG
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The catalyst has one carrier of SiO2, gamma-Al2O3 or TiO2 and its active component Mo-S-K radical is transformed from precursor K2MoS4 or (NH4)2MoS4+K2CO3. Its transition of RE metal oxide promoter are mainly metal oxide of Mn, Fe, Co, Ni, La, etc. Under the conditions of 295 deg.c temperature, 0.2MPa pressure, volume proportion of high-sulphur synthesis gas CO-H2-H2S being 1 to 2 to 0.1-1, and 2000-5000/hr space velocity, the catalyst can result in methyl mercaptan space-time yield of 0.37 g/hr each gram of catalyst and selectivity of 98.6%.