A kind of hydrogenation catalyst and its application in hydrodeoxygenation
A hydrogenation catalyst and a catalyst technology are applied to the hydrogenation catalyst and its application in hydrodeoxygenation, and can solve the problems of easy deactivation and poor stability.
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Embodiment 1
[0081] Take by weighing 350 grams of CL-A powder and 120 grams of CL-A-600 powder (CL-A-600 powder and the mass ratio of CL-A powder on dry basis are 0.34) in dry basis, and combine them with 3600 grams of deionized water were mixed and stirred to form a slurry; the slurry was transferred to a stainless steel autoclave with a stirring volume of 5 liters and a polytetrafluoroethylene liner, sealed and heated to 160 ° C, and kept at a constant temperature for 4 hours under stirring; Afterwards, after cooling down to room temperature and filtering, the filter cake was dried at 120° C. for 8 hours to obtain the modified product Q-S1. The crystal phase, relative crystallinity and grain size were characterized by X-ray diffraction method, and the results are listed in Table 1.
[0082] Q-S1 is extruded into a clover-shaped strip with a circumscribed circle diameter of 1.6 mm using a extrusion machine (manufacturer: South China University of Technology Science and Technology Industri...
Embodiment 2
[0084] Take by weighing 224 grams of CL-A powder in dry basis, 300 grams of CL-A-600 powder (the ratio of the mass of CL-A-600 powder to the CL-A powder in dry basis is 1.34), and take them Mix and stir with 3600 grams of deionized water to form a slurry; transfer the slurry to a stirred stainless steel autoclave with a polytetrafluoroethylene liner with a volume of 5 liters, seal it and heat it to 160 ° C for 4 hours at a constant temperature; drop to room temperature and After filtration, the filter cake was dried at 120° C. for 8 hours to obtain modified alumina hydrate Q-S2. The crystal phase, relative crystallinity and grain size were characterized by X-ray diffraction method, and the results are listed in Table 1.
[0085] Q-S2 is extruded into a clover-shaped strip with a circumscribed circle diameter of 1.6 millimeters with a extruder (same as embodiment 1). After the wet strip was dried at 120°C for 4 hours, it was kept at 600°C in a muffle furnace for 4 hours under ...
Embodiment 3
[0087] Take by weighing 109 grams of CL-A powder and 464 grams of CL-A-600 powder (CL-A-600 powder and the ratio of the mass of CL-A powder in dry basis to 4.25) in dry basis respectively. Mix and stir with 3600 grams of deionized water to form a slurry; transfer the slurry to a stainless steel autoclave with a stirring volume of 5 liters and a polytetrafluoroethylene liner, seal it and heat it to 160°C for 4 hours at a constant temperature; drop to room temperature and After filtration, the filter cake was dried at 120° C. for 8 hours to obtain modified alumina hydrate Q-S3. The crystal phase, relative crystallinity and grain size were characterized by X-ray diffraction method, and the results are listed in Table 1.
[0088] Formed alumina provided by the invention and its preparation:
[0089] Q-S3 is extruded into a clover-shaped bar with a circumscribed circle diameter of 1.6 mm with a bar extruder (same as embodiment 1). After the wet strip was dried at 120°C for 4 hour...
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