Catalyst and application thereof
A catalyst, catalyst quality technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, bulk chemical production, etc., to achieve good low-temperature catalytic activity, reduce gasification temperature, and overcome corrosiveness strong effect
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Embodiment 1
[0027] Embodiment 1: The catalyst of this embodiment uses cerium-zirconium solid solution as a carrier, metal ruthenium as an active component, ruthenium in the catalyst accounts for 0.5% of the catalyst mass, and the molar ratio of cerium to zirconium in the cerium-zirconium solid solution carrier is 4: 1;
[0028] The preparation steps of this catalyst are as follows:
[0029] (1) Add polyethylene glycol in distilled water and stir until completely dissolved, the concentration of polyethylene glycol solution is 10 g / L;
[0030] (2) Add a mixture of cerium nitrate and zirconium nitrate to the solution in step (1), stir at a constant temperature of 80°C until completely dissolved, wherein the molar concentration of total metal ions of cerium and zirconium in the solution is 0.1 mol / L, cerium nitrate and nitric acid Zirconium is mixed with a molar ratio of cerium and zirconium of 4:1;
[0031] (3) Add ammonia water drop by drop to the solution in step (2) and stir, adjust the ...
Embodiment 2
[0037]Embodiment 2: The catalyst of this embodiment uses cerium-zirconium solid solution as the carrier, metal ruthenium as the active component, ruthenium in the catalyst accounts for 1.0% of the mass of the catalyst, and the molar ratio of cerium to zirconium in the cerium-zirconium solid solution carrier is 3:1;
[0038] The preparation steps of this catalyst are as follows:
[0039] (1) Add polyethylene glycol in distilled water and stir until completely dissolved, the concentration of polyethylene glycol solution is 20g / L;
[0040] (2) Add a mixture of cerium chloride and zirconium nitrate to the solution in step (1), stir at a constant temperature of 30°C until completely dissolved, wherein the molar concentration of total metal ions of cerium and zirconium in the solution is 0.2 mol / L, and cerium chloride Mix with zirconium nitrate in a molar ratio of 3:1 to cerium to zirconium;
[0041] (3) Add ammonia water drop by drop to the solution in step (2) and stir. After adj...
Embodiment 3
[0046] Embodiment 3: The catalyst of this embodiment uses cerium-zirconium solid solution as a carrier, metal ruthenium as an active component, ruthenium in the catalyst accounts for 2.5% of the mass of the catalyst, and the molar ratio of cerium to zirconium in the cerium-zirconium solid solution carrier is 2:1;
[0047] The preparation steps of this catalyst are as follows:
[0048] (1) Add polyethylene glycol in distilled water and stir until completely dissolved, the concentration of polyethylene glycol solution is 15g / L;
[0049] (2) Add the mixture of cerium chloride and zirconium sulfate to the solution in step (1), stir at a constant temperature of 50°C until completely dissolved, wherein the molar concentration of total metal ions of cerium and zirconium in the solution is 0.15 mol / L, cerium chloride Mix with zirconium sulfate in the ratio of cerium to zirconium molar ratio 2:1;
[0050] (3) Add ammonia water drop by drop to the solution in step (2) and stir. After ...
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