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Hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and catalyst technology, applied in the direction of refining hydrocarbon oil, petroleum industry, refining to remove heteroatoms, etc., to achieve the effect of improving saturation activity

Active Publication Date: 2012-03-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem facing the development of nickel-based supported hydrogenation catalysts is how to improve the hydrogenation activity of the catalyst and slow down the catalyst deactivation caused by the poisoning of impurities such as sulfur

Method used

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  • Hydrogenation catalyst and preparation method thereof
  • Hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take by weighing 2000 grams of aluminum hydroxide powder (product of Changling Catalyst Factory), extrude it into a clover-shaped strip with a circumscribed circle diameter of 1.5 mm on the extruder, dry the wet strip at 120°C for 8 hours, and dry it at 620°C under the condition of ventilation. Roasted for 3 hours to obtain carrier S 1 .

[0033] Weigh the above carrier S 1 100 grams, impregnated with 102 milliliters of an aqueous solution containing 24.4 grams of magnesium nitrate for 1.5 hours, dried at 120° C. for 4 hours, and then calcined at 370° C. for 4 hours under the condition of ventilation to obtain a magnesium-containing carrier.

[0034] Weigh 228.6 grams of basic nickel carbonate, 176 grams of ammonium carbonate, and 8.7 grams of molybdenum trioxide, put them in a beaker, then add 300 grams of concentrated ammonia water, stir and dissolve, and dilute to 538.8 milliliters with deionized water to obtain nickel and molybdenum The immersion solution i-1.

[0...

Embodiment 2

[0037] Take by weighing 2000 grams of aluminum hydroxide powder (same as Example 1) and mix with the aqueous solution containing 15.4 grams of magnesium nitrate, extrude into a clover-shaped strip with a circumscribed circle diameter of 1.5 mm on the extruder, and the wet strip was dried at 100° C. for 8 hours. Calcined at 550°C for 6 hours under the condition of ventilated air to obtain magnesium-containing alumina carrier S 2 .

[0038] Take by weighing 155.4 grams of basic nickel carbonate, 156 grams of ammonium carbonate, and 17.7 grams of molybdenum trioxide, put them in a beaker, add 280 grams of concentrated ammonia water, stir and dissolve, and dilute to 538.8 milliliters with deionized water to obtain nickel and molybdenum Co-immersion solution i-2.

[0039] According to the liquid-solid volume ratio of 2.5:1, impregnate the above-mentioned magnesium-containing carrier S with the above-mentioned co-impregnation solution i-2 2 1.5 hours, then filter, dry the wet stri...

Embodiment 3

[0041] Take by weighing 1600 grams of aluminum hydroxide powder (same as embodiment 1) and mix with 400 grams of pseudo-boehmite powder (the product produced by Shandong Aluminum Works), and extrude into a clover-shaped strip whose circumscribed circle diameter is 1.5 millimeters on the extruder, wet The strips were dried at 120°C for 4 hours, and calcined at 600°C for 3 hours under the condition of ventilation to obtain the carrier S 3 .

[0042] Weigh the above carrier S 3 100 grams, impregnated with 100 milliliters of an aqueous solution containing 19.0 grams of magnesium nitrate for 2 hours, dried at 120° C. for 5 hours, and then calcined at 400° C. for 4 hours under the condition of ventilation to obtain a magnesium-containing carrier.

[0043] Weigh 224.6 grams of basic nickel carbonate, 170.0 grams of ammonium carbonate, and 17.0 grams of molybdenum trioxide, put them in a beaker, add 280 grams of concentrated ammonia water, stir, dissolve, and dilute to 538.8 millilit...

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Abstract

The invention provides a hydrogenated catalyst and the preparation method. The catalyst contains alumina carrier and nickel carried by the carrier, which is characterized in that the catalyst also contains molybdenum and magnesium, taking the catalyst as the benchmark, the content of the magnesia is 0.3-3.5 weight percent, the content of the molybdena is 1-6 weight percent, the content of the nickel oxide is 18-30 weight percent, and the content of the alumina is 64-80 weight percent. The preparation method of the catalyst includes the following steps: (1) loading magnesium metal constituent on the alumina carrier; (2) soaking the carrier obtained from the step (1) with nickel compounds containing and / or molybdenum compound containing solution, and then drying and roasting. Compared with catalyst provided by the prior art, the aromatic hydrocarbon hydrogenated saturated activity of the catalyst provided by the invention is greatly improved.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to a nickel-based supported hydrogenation catalyst containing additives magnesium and molybdenum and a preparation method thereof. Background technique [0002] Various fractions of petroleum, such as gasoline, kerosene, diesel and lubricating oils, contain aromatic hydrocarbons. It has been found that both monocyclic and polycyclic aromatic hydrocarbons are suspected carcinogenic compounds, which are harmful to the human body. At the same time, aromatic hydrocarbons are not easy to burn completely and are an important source of inhalable particulate matter. For the consideration of environmental protection, all countries require to limit the content of aromatics in fuel oil and lubricating oil. However, there are stricter requirements on the content of aromatic hydrocarbons in food (medicine) grade white oil, edible oil and cosmetic oil. The content of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/12C10G45/08
Inventor 王锦业夏国富郭庆洲王鲁强聂红石亚华王轶凡
Owner CHINA PETROLEUM & CHEM CORP