Catalyst for synthesizing methyl mercaptan, preparation method and application
A catalyst, methyl mercaptan technology, applied in the direction of mercaptan preparation, chemical instruments and methods, physical/chemical process catalysts, etc., to avoid the collapse of pores, improve thermal stability and structural stability, and avoid the aggregation of active component particles
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Embodiment 1
[0030] Weigh 2.5g citric acid and 20.0g EO 106 PO 70 EO 106 Add into 125ml ethanol containing 10.0g 12M HCl, stir and dissolve at 30°C, add 20.4g aluminum isopropoxide, 3.0g hexahydrate zinc nitrate, 12.3g tetrahydrate ammonium heptamolybdate and 1.0g potassium nitrate to the system at the same time, After stirring at 30°C for 4h, the reaction mixture was poured into petri dishes and treated at 40°C for 48h. Finally, the sample was heat-treated at 120 °C for 24 h, and calcined at 750 °C for 5 h to obtain K 2 O-ZnO-MoO 3 / γ-Al 2 O 3 Methane mercaptan catalyst material.
[0031] The catalyst was tableted, pulverized into 40-60 mesh particles, and loaded into a 10ml micro-reverse fixed-bed reactor. -1 reaction under conditions.
Embodiment 2
[0033] Weigh 2.5g citric acid and 20.0g EO 106 PO 70 EO 106 Add into 125ml of ethanol containing 10.0g of 12M HCl, stir and dissolve at 40°C, add 20.4g of aluminum isopropoxide, 1.9g of zinc chloride, 7.4g of ammonium heptamolybdate tetrahydrate and 0.9g of potassium nitrate to the system at the same time. After stirring at 40°C for 5h, the reaction mixture was poured into a petri dish and treated at 40°C for 48h. Finally, the sample was heat-treated at 100 °C for 48 h, and calcined at 650 °C for 8 h to obtain K 2 O-ZnO-MoO 3 / γ-Al 2 O 3 Methane mercaptan catalyst material.
[0034] The catalyst was tableted, pulverized into 40-60 mesh particles, and loaded into a 10ml micro-reverse fixed-bed reactor. -1 reaction under conditions.
Embodiment 3
[0036] Weigh 2.5g citric acid and 12.0gEO 20 PO 70 EO 20 Add to 125ml ethanol containing 10.0g 12M HCl, stir and dissolve at 50°C, add 20.4g aluminum isopropoxide, 4.2g hexahydrate zinc nitrate, 7.4g tetrahydrate ammonium heptamolybdate and 1.5g sodium nitrate to the system at the same time, After stirring at 50°C for 4h, the reaction mixture was poured into petri dishes and treated at 50°C for 48h. Finally, the sample was heat-treated at 130 °C for 48 h, and calcined at 800 °C for 5 h to obtain Na 2O-ZnO-MoO 3 / γ-Al 2 O 3 Methane mercaptan catalyst material.
[0037] The catalyst was tableted, pulverized into 40-60 mesh particles, and loaded into a 10ml micro-reverse fixed-bed reactor. -1 reaction under conditions.
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