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Hydrogenation catalyst and preparation method thereof
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A hydrogenation catalyst and catalyst technology, applied in the field of oil hydrogenation, can solve the problems of high oil loss, high capital and equipment investment, high operating costs, etc.
Pending Publication Date: 2021-05-28
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Although non-hydrogenation desulfurization technology has made great progress, especially oxidative desulfurization has the most application prospects, it has disadvantages such as high operating costs, high oil loss, high capital and equipment investment, and the subsequent treatment of oil products is difficult, so it is difficult Industrialization in a short time
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Embodiment 1
[0024] 17.6g of (NH 4 ) 6 Mo 7 o 24 • 4H 2 O, adjust with ammonia water until the ammonium molybdate is completely dissolved, use a 100mL volumetric flask to make up the volume, then impregnate an equal volume into the alumina carrier, and dry at 120°C for 3h. Then use 1.5% H 2 The hydrogen of S is vulcanized, the vulcanization temperature is 350°C, the vulcanization pressure is 4.0MPa, the vulcanization time is 8h, and then in N 2 atmosphere down to room temperature, MoS 2 / Al 2 o 3 . 9.31g of Co(NO 3 ) 2 •6H 2 O dissolved in 50 mL of deionized water, in N 2 Isovolumetric Impregnation into MoS in Atmosphere 2 / Al 2 o3 , then in N 2 Under the atmosphere, dry at 90°C for 4h, and bake at 300°C for 3h to obtain MoS 2 -CoO / Al 2 o 3 Catalyst C-1.
Embodiment 2
[0026] 17.6g of (NH 4 ) 6 Mo 7 o 24 • 4H 2 O, adjust with ammonia water until the ammonium molybdate is completely dissolved, use a 100mL volumetric flask to make up the volume, then impregnate an equal volume into the alumina carrier, and dry at 120°C for 3h. Then use 1.5% H 2 The hydrogen of S is vulcanized, the vulcanization temperature is 350°C, the vulcanization pressure is 4.0MPa, the vulcanization time is 8h, and then in N 2 atmosphere down to room temperature, MoS 2 / Al 2 o 3 . 9.31g of Ni(NO 3 ) 2 •6H 2 O dissolved in 50 mL of deionized water, in N 2 Isovolumetric Impregnation into MoS in Atmosphere 2 / Al 2 o 3 , then in N 2 Under the atmosphere, dry at 90°C for 4h, and bake at 300°C for 3h to obtain MoS 2 -NiO / Al 2 o 3 Catalyst C-2.
Embodiment 3
[0028] 17.6g of (NH 4 ) 6 Mo 7 o 24 • 4H 2 O, adjust with ammonia water until the ammonium molybdate is completely dissolved, use a 100mL volumetric flask to make up the volume, then impregnate an equal volume into the alumina carrier, and dry at 120°C for 3h. Then use 1.5% H 2 The hydrogen of S is vulcanized, the vulcanization temperature is 350°C, the vulcanization pressure is 4.0MPa, the vulcanization time is 8h, and then in N 2 atmosphere down to room temperature, MoS 2 / Al 2 o 3 . 5.11g of Ni(NO 3 ) 2 •6H 2 O and 4.25Co(NO 3 ) 2 •6H 2 O dissolved in 50 mL of deionized water, in N 2 Isovolumetric Impregnation into MoS in Atmosphere 2 / Al 2 o 3 , then in N 2 Under the atmosphere, dry at 90°C for 4h, and bake at 300°C for 3h to obtain MoS 2 -NiO-CoO / Al 2 o 3 Catalyst C-3.
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Abstract
The invention discloses a hydrogenation catalyst and a preparation method thereof. The hydrogenation catalyst comprises a hydrogenation catalyst carrier and a hydrogenation active component, based on the total weight of the catalyst, the content of VIB group metal sulfide is 2.2 wt%-33 wt%, preferably 10 wt%-20 wt%, and the content of VIII group metal oxide is 0.2 wt%-12 wt%, preferably 3 wt%-6 wt%. The preparation method comprises the following steps: (1) impregnating a hydrogenation catalyst carrier with an impregnation liquid containing VIB group metal, then drying, and vulcanizing the dried material; and (2) impregnating the vulcanized material in the step (1) with an impregnation liquid containing VIII group metals, and then drying and roasting in an inert atmosphere to obtain the hydrogenation catalyst. The catalyst disclosed by the invention has relatively high sulfuration degree and high II-type active center number, and can be applied to the hydrotreating process of oil products such as distillate oil and residual oil.
Description
technical field [0001] The invention relates to the technical field of hydrogenation of oil products, in particular to a hydrogenation catalyst and a preparation method thereof. Background technique [0002] The sulfur compounds contained in diesel mainly include aliphatic sulfides, sulfides, dibenzothiophenes (DBT), alkylbenzothiophenes and alkyldibenzothiophenes, etc. Oil desulfurization technologies are divided into non-hydrogenation desulfurization and hydrodesulfurization (HDS), among which non-hydrogenation desulfurization technologies mainly include adsorption desulfurization, oxidative desulfurization, extractive desulfurization and biological desulfurization. Although non-hydrogenation desulfurization technology has made great progress, especially oxidative desulfurization has the most application prospects, it has disadvantages such as high operating costs, high oil loss, high capital and equipment investment, and the subsequent treatment of oil products is difficu...
Claims
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Application Information
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