Inactivated Co-Mo type hydrogenation catalyst regeneration liquid and regeneration method
A technology of hydrogenation catalyst and regeneration solution, which is applied in catalyst regeneration/reactivation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalyst, etc., to improve activity recovery rate, reduce usage, and be easy to promote Effect
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Embodiment 1
[0028] To prepare the regeneration solution, the preparation steps and material consumption are as follows:
[0029] (a) Weigh 1.77 g of cobalt acetate into a 200 mL beaker, add 100 mL of deionized water and stir to dissolve;
[0030] (b) Weigh 0.42 g of citric acid and add it to the solution of step (a) and stir to dissolve;
[0031] (c) Weigh 0.012 g of ethylenediamine into the solution of step (b) and stir to dissolve.
[0032] Put 1000 grams of deactivated catalyst in a high temperature furnace, raise the temperature to 200°C at a heating rate of 3°C / min, and then keep the temperature constant for 80 minutes, then raise the temperature to 250°C at a heating rate of 3°C / min. The heating rate was raised to 400°C per minute, and after 80 minutes of constant temperature, it was cooled to room temperature and taken out. The number is T01, the S content of the catalyst T01 is 0.35 wt %, and the C content is 0.45 wt %.
[0033] Take 100 g of the charred catalyst T01 and put it...
Embodiment 2
[0035] To prepare the regeneration solution, the preparation steps and material consumption are as follows:
[0036] (a) Weigh 1.77 g mol of cobalt acetate into a 200 mL beaker, add 100 mL of deionized water, and stir to dissolve;
[0037] (b) Weigh 0.42 g of citric acid and add it to the solution of step (a) and stir to dissolve;
[0038] (c) Weigh 0.012 g of ethylenediamine into the solution of step (b) and stir to dissolve.
[0039] Take 100g of calcined catalyst T01, rinse with 300ml of 0.02mol / L oxalic acid aqueous solution for 30 minutes, then dry at 110°C for 4 hours, calcinate at 400°C for 3 hours, put it into a 1000mL plastic beaker, add 60mL of regeneration solution to saturate Dipping for 40 minutes, then curing and drying at 110°C for 3 hours. The dried catalyst was placed in a high-temperature furnace, the temperature rising rate was raised to 400°C at a rate of 3°C / min, and the temperature was kept constant for 4 hours to obtain a regenerated catalyst, numbered...
Embodiment 3
[0041] To prepare the regeneration solution, the preparation steps and material consumption are as follows:
[0042] (a) Weigh 3.54 grams of cobalt acetate into a 200 mL beaker, add 100 mL of deionized water, and stir to dissolve;
[0043] (b) Weigh 0.84 g of citric acid and add it to the solution of step (a) and stir to dissolve;
[0044] (c) Weigh 0.024 g of ethylenediamine into the solution of step (b) and stir to dissolve.
[0045] Take 100g of calcined catalyst T01, rinse with 300ml of 0.02mol / L oxalic acid aqueous solution for 30 minutes, then dry at 110°C for 4 hours, calcinate at 400°C for 3 hours, put it into a 1000mL plastic beaker, add 60mL of regeneration solution to saturate Dipping for 40 minutes, then curing and drying at 110°C for 3 hours. The dried catalyst was placed in a high-temperature furnace, the temperature rising rate was raised to 400°C at a rate of 3°C / min, and the temperature was kept constant for 4 hours to obtain a regenerated catalyst, numbered a...
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