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A kind of hydrocracking catalyst and its preparation method and start-up method

A hydrocracking and catalyst technology, applied in catalyst activation/preparation, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc. The metal dispersion is good, which is beneficial to adsorption and avoids the effect of excessive temperature rise.

Active Publication Date: 2020-04-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During vulcanization, there is no need to go through the generation reaction of hydrogen sulfide and the vulcanization reaction between hydrogen sulfide and active metal, and no additional heat is generated, which solves the problem of airtightness and heat release of the pre-sulfurized catalyst outside the device, and avoids the catalyst vulcanization process. The problem of excessive temperature rise in the middle

Method used

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  • A kind of hydrocracking catalyst and its preparation method and start-up method
  • A kind of hydrocracking catalyst and its preparation method and start-up method
  • A kind of hydrocracking catalyst and its preparation method and start-up method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 Preparation of Hydrocracking Catalyst A

[0047] Weigh 28g of ammonium molybdate, 30g of nickel nitrate, and 50mL of ammonia water, and mix them with deionized water to 100mL to obtain solution I. Dissolve 53 g of 2-ethylenediamine-4,6-dimercapto-s-triazine salt in 50 mL of water to obtain solution II. Weigh 12.7 grams of Y molecular sieve (SiO 2 / Al 2 o 3 The molar ratio is 16, and the specific surface area is 613m 2 / g, total pore volume 0.48mL / g), 35.5 grams of amorphous silicon aluminum (SiO 2 Content 50wt%, pore volume 0.85ml / g, specific surface area 370m 2 / g, dry basis 70wt%) and 61.5 grams of macroporous alumina (pore volume 1.0ml / g, specific surface area 400m 2 / g, dry basis 70wt%), then put into 2L water, after vigorously stirring for 20min, add solutions I and II side by side, then stir for another 30min, wash, and filter with suction. The filter cake obtained by suction filtration was heat-treated at a low temperature of 80° C. for 3 hours. ...

Embodiment 2

[0048] Example 2 Preparation of Hydrocracking Catalyst B

[0049] Take 23.1g of molybdenum oxide, 12.8g of basic nickel carbonate, 2.2mL of phosphoric acid, and 60mL of deionized water, mix them uniformly and boil for 1 hour to obtain solution I. Weigh 53 g of 2-cyclopropylamine 4,6-dimercapto-s-triazine diammonium salt and dissolve it in 100 mL of acetone solution to obtain solution II. Weigh 12.7 grams of Y sieve (SiO 2 / Al 2 o 3 The molar ratio is 16, and the specific surface area is 613m 2 / g, total pore volume 0.48mL / g), 35.5 grams of amorphous silicon aluminum (SiO 2 Content 50wt%, pore volume 0.85ml / g, specific surface area 370m 2 / g, dry basis 70wt%) and 61.5 grams of macroporous alumina (pore volume 1.0ml / g, specific surface area 400m 2 / g, dry basis 70wt%), then put it into 2L of water, after vigorously stirring for 20min, drop solution I into the slurry and stir for 10min, then drop solution II into the slurry, stir vigorously during the dropping process, and ...

Embodiment 3

[0050] Example 3 Preparation of Hydrocracking Catalyst C

[0051] Prepare the solution I of Example 1 with the same mass and concentration. Take 124 g of 2-methylamine 4-n-butylamine 6-mercapto-s-triazine salt and dissolve it in 50 mL of water to obtain solution II. Weigh 9.7 grams of Y molecular sieve (SiO 2 / Al 2 o 3 The molar ratio is 16, and the specific surface area is 613m 2 / g, total pore volume 0.48mL / g), 12.2 grams of β molecular sieve (SiO 2 / Al 2 o 3 The molar ratio is 82, and the specific surface area is 546m 2 / g, total pore volume 0.46mL / g) and 100 grams of macroporous alumina (pore volume 1.0ml / g, specific surface area 400m 2 / g, dry basis 70wt%), then put into 2L water, after vigorously stirring for 20min, add solutions I and II side by side, then stir for another 30min, wash, and filter with suction. Other steps were the same as in Example 1 to obtain hydrocracking catalyst C, whose main physical properties are shown in Table 1.

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Abstract

The invention discloses a hydrocracking catalyst as well as a preparation method and a starting method thereof. The hydrocracking catalyst is prepared from a hydrogenated active metal component, a carrier containing an acid cracking component and a specific organic compound. The obtained vulcanization type hydrogenated catalyst is good in vulcanization and passivation effect and high in hydrogenation activity. The hydrocracking catalyst is not required to be subjected to a hydrogen sulfide generation reaction and a hydrogen sulfide and active metal vulcanization reaction during starting of vulcanization, so that the problem of rapid temperature rise of a traditional catalyst in a vulcanization process is solved; ammonia injection for passivation is not required, therefore, environmental pollution and harm to a human body can be reduced, and the hydrocracking catalyst realizes sufficient vulcanization, is good in metal dispersity and has good hydrogenation property.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and its preparation method and start-up method, in particular to a hydrocracking catalyst capable of simultaneous sulfidation and passivation and its preparation method. Background technique [0002] At present, the shortage of petroleum resources in the world, the quality of crude oil is deteriorating year by year, the demand for middle distillate oil is increasing, the upgrading of petrochemical products and the stricter environmental regulations have greatly promoted the transformation of heavy oil into lighter products, and constituted an accelerated development of hydrogenation. The power of technology. The main features of hydrocracking technology are strong adaptability of raw materials, high selectivity of product plans and target products, good product quality and high added value, and can directly produce a variety of high-quality petroleum products (such as gasoline, jet fuel, diesel oil, lub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/34B01J27/051B01J37/20C10G47/20
CPCB01J27/0515B01J31/34B01J37/20C10G47/20
Inventor 徐黎明高玉兰吕振辉张学辉佟佳孙海
Owner CHINA PETROLEUM & CHEM CORP
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