Hydrogenation catalyst for preparing hydrogenation petroleum resin and preparation method thereof
A technology for hydrogenation of petroleum resins and hydrogenation catalysts, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of resin hydrogenation catalysts that have not been industrialized Issues such as reports and research started late, to achieve the effects of increasing lifespan, improving dispersion effect, and slowing down poisoning
Active Publication Date: 2015-04-22
HENGHE MATERIALS & SCI TECH CO LTD
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Problems solved by technology
[0005] my country's research on petroleum resin hydrogenation catalysts started relatively late. At present, domestic petroleum resin hydrogenation units all use imported palladium-based catalysts, and there are no reports on the industrialization of domestic resin hydrogenation catalysts.
Method used
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Embodiment 1-6
[0024] In terms of weight percentage, the main catalyst Pd, the content is 0.5wt%; the promoter Ag, the content is 0.3wt%; the promoter group VB metal Nb, the content is 0.3wt%; the catalyst carrier γ-Al 2 O 3 Is the balance; catalyst carrier γ-Al 2 O 3 , Its specific surface area is 110m 2 / g, pore volume 0.45ml / g, bulk density 0.65g / cm 3 .
[0025] Preparation method: prepare palladium nitrate, silver nitrate and group VB metal niobium pentachloride and dissolve them in hydrochloric acid to obtain a mixed solution;
[0026] The carrier γ-Al 2 O 3 Placed in a fluidized bed reactor with a temperature of 110℃, and then spray the above mixed solution evenly on the carrier to obtain a composite carrier, dry, calcined at 250℃ for 3h, and reduce under hydrogen conditions at 250℃ for 3h, that is Get the hydrogenation catalyst.
[0027] The parameters of Examples 2-6 are shown in Table 1, and the preparation method is the same as that of Example 1.
[0028] Catalyst performance evaluation: d...
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The invention relates to a hydrogenation catalyst for preparing hydrogenation petroleum resin and a preparation method thereof; the hydrogenation catalyst is a Pd / Ag / group VB metal / gamma-Al2O3 composite catalyst. The preparation comprises the steps: preparing a palladium salt, a silver salt and a group VB metal compound, and dissolving in a solvent, to obtain a mixed solution; and placing a carrier gamma-Al2O3 in a fluidized bed reactor, uniformly spraying the mixed solution onto the carrier to obtain a composite carrier, drying, roasting, reducing, and thus obtaining the product. The catalyst has relatively strong catalytic activity in preparation of the hydrogenation petroleum resin, and has relatively good resistance to toxicity of sulfur, nitrogen, halogen and other impurities, and has a relatively long catalyst service life.
Description
Technical field [0001] The invention belongs to the field of hydrogenation catalysts and preparations thereof, and particularly relates to a hydrogenation catalyst for preparing hydrogenated petroleum resin and a preparation method thereof. Background technique [0002] Petroleum resin is a solid or viscous liquid medium and low molecular weight polymer obtained by thermal polymerization or catalytic polymerization as the main raw material of the by-product C5 / C9 fraction of the ethylene plant. According to the monomer and molecular structure of the resin, it can be roughly divided into aromatic petroleum resin, aliphatic petroleum resin, and alicyclic petroleum resin. Because petroleum resin molecules contain a large number of unsaturated bonds and unsaturated cyclic structures, they will show a certain color. The Gardner color number of the resin is usually 3-18#. At the same time, due to the presence of these unsaturated groups, petroleum resins lack odor, weather resistance,...
Claims
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Login to View More IPC IPC(8): B01J23/68C08F240/00C08F8/04
Inventor 王斌孙向东
Owner HENGHE MATERIALS & SCI TECH CO LTD