Synthesis method of catalyst for preparing hydrogen through propane steam reforming
A technology of steam reforming and synthesis methods, which is applied in the fields of chemical instruments and methods, hydrogen/synthesis gas production, metal/metal oxide/metal hydroxide catalysts, etc. Carbon deactivation and other issues, to achieve the effect of good synthesis repeatability, simple synthesis steps, and no three-waste emissions
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Embodiment 1
[0026] A catalyst for preparing hydrogen by steam reforming of propane, which contains the following components in the following mass fractions: 5% active component and 95% silica carrier; the Ni / In molar ratio of the active component is 2 nickel indium metal intermediate compound.
[0027] The preparation method of the novel supported catalyst described in this embodiment is a deposition-precipitation method, which specifically includes the following steps:
[0028] (1) 950 mg of silica was weighed and calcined at 400° C. for 6 h by passing air into the pre-treatment device. 123 mg of nickel nitrate hexahydrate and 87 mg of hydrated indium nitrate were weighed and dissolved in a small amount of deionized water. The mixture was heated to 80°C, and the treated silica carrier was added simultaneously, and then 2M sodium hydroxide was added to adjust the pH to 6 to 8, washed with deionized water and filtered three times to prepare a silica carrier deposited on the silica carrier...
Embodiment 2
[0031] A novel supported catalyst contains the following mass fractions of active components: 10% and titanium dioxide carrier: 90%; the nickel-indium intermetallic compound whose active component Ni / In molar ratio is 2.
[0032] The preparation method of the novel supported catalyst described in this embodiment is a deposition-precipitation method, which specifically includes the following steps:
[0033] (1) 900 mg of titanium dioxide was weighed and calcined at 200° C. for 6 h by passing air into the pre-treatment device. Weigh 247 mg of nickel nitrate hexahydrate and 174 mg and dissolve in a small amount of deionized water. The mixture was heated to 80°C while adding the treated titanium dioxide carrier, then 2M sodium hydroxide was added to adjust the pH to 9, deionized water was washed and filtered three times to prepare nickel indium hydroxide deposited on the titanium dioxide carrier. The obtained nickel indium hydroxide was dried in a vacuum oven for 12 h, and then r...
Embodiment 3
[0036] A new type of supported catalyst, which contains the following components in the following mass fractions: 15% active component and 85% silica carrier; the nickel-indium intermetallic compound whose active component Ni / In molar ratio is 2.
[0037] The preparation method of the novel supported catalyst described in this embodiment is a deposition-precipitation method, which specifically includes the following steps:
[0038](1) 850 mg of silica was weighed and calcined at 400° C. for 6 h by passing air into the pre-treatment device. 168 mg of nickel dichloride and 171 mg of indium trichloride were weighed and dissolved in a small amount of deionized water. The mixture was heated to 80°C, and the treated silica carrier was added at the same time, and then 2M sodium hydroxide was added to adjust the pH to 6 to 8, washed with deionized water and filtered three times to prepare a silica carrier deposited on the silica carrier. Nickel indium hydroxide. The obtained nickel ...
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