A bio-oil-based oxygenated compound hydrodeoxygenation catalyst and preparation method thereof
A technology for deoxygenation catalysts and compounds, which is used in the production of hydrocarbons from oxygen-containing organic compounds, catalysts for physical/chemical processes, chemical instruments and methods, etc. , to achieve mild reaction conditions
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Embodiment 1
[0027] 1) Catalyst preparation:
[0028] ①Weigh 2.62g nickel nitrate hexahydrate, 1.03g ammonium dihydrogen phosphate, 4.2g urea, measure 225ml deionized water, 20ml ethanol and 22.4ml ethyl orthosilicate.
[0029] ②Dissolve nickel nitrate hexahydrate and urea in deionized water to obtain nickel salt solution; dissolve ammonium dihydrogen phosphate in water to prepare ammonium dihydrogen phosphate solution.
[0030] ③After mixing tetraethyl orthosilicate and ethanol evenly, add it into the nickel salt solution prepared in step ②, and shake well to obtain a phosphide precursor solution.
[0031] ④After the sol-gel is completely formed, dry at 90°C for 52h, then dry at 120°C for 12h; after grinding and sieving, calcinate at 550°C for 5h in air atmosphere.
[0032] ⑤Immerse the material obtained in step ④ into an equal volume of ammonium dihydrogen phosphate solution, where the molar ratio of phosphorus to nickel is 1:1, dry at 120°C for 12h, then calcinate at 550°C for 4h in an...
Embodiment 2
[0036] 1) Catalyst preparation
[0037] In Example 1, the quality of nickel nitrate hexahydrate and ammonium dihydrogen phosphate was changed to 4.161g and 1.64g respectively, and the rest of the steps were the same to obtain 15% Ni 2 P / SiO 2 catalyst.
[0038] 2) Evaluation conditions: the evaluation conditions of the catalyst are the same as in Example 1, the reaction process conditions are shown in Table 1, and the activity evaluation results are shown in Table 2.
Embodiment 3
[0040] 1) Catalyst preparation
[0041] ①Weigh 2.62g of nickel nitrate hexahydrate, 1.03g of ammonium dihydrogen phosphate, 4.2g of urea, measure 225ml of deionized water, 20ml of ethanol, 22.4ml of ethyl orthosilicate, and 12.59ml of palladium chloride solution.
[0042] ②Dissolve nickel nitrate hexahydrate and urea in deionized water to obtain nickel salt solution; dissolve ammonium dihydrogen phosphate in water to prepare ammonium dihydrogen phosphate solution.
[0043] ③After mixing tetraethyl orthosilicate and ethanol evenly, add it into the nickel salt solution prepared in step ②, and shake well to obtain a phosphide precursor solution.
[0044] ④After the sol-gel is completely formed, dry at 90°C for 52h, then dry at 120°C for 12h; after grinding and sieving, calcinate at 550°C for 5h in air atmosphere.
[0045] ⑤Immerse the material obtained in step ④ into an equal volume of impregnated ammonium dihydrogen phosphate solution, in which the molar ratio of phosphorus to ...
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