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Heavy fraction oil hydrgenation cracking catalyst

A heavy distillate oil, hydrocracking technology, applied in the direction of hydrocarbon oil cracking, petroleum industry, etc., can solve problems such as low hydrocracking activity, and achieve the effect of improving hydrocracking activity

Inactive Publication Date: 2006-06-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the prior art, although the hydrocracking catalysts supported by silica-alumina can meet the requirements of some hydrocracking reactions, their hydrocracking activity is still low

Method used

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  • Heavy fraction oil hydrgenation cracking catalyst
  • Heavy fraction oil hydrgenation cracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] 800 grams of NaY type molecular sieve (SiO 2 / Al 2 o 3=4.8, crystallinity is defined as 100%, Changling Oil Refinery product) is placed in 4000 milliliters, concentration is in the ammonium chloride (Beijing Chemical Plant product, analytical pure) aqueous solution of 1.0 mole, exchange 1 hour under stirring at 90 ℃, Filter, wash with deionized water until no chlorine ions are detected, dry at 120°C, and bake at 550°C for 4 hours. Repeat above-mentioned process twice to obtain the Y-type molecular sieve A of sodium content (in sodium oxide) 0.35% by weight (measured by flame atomic absorption spectrometry), record sample crystallinity with X-ray diffraction method and be 76%, get Y-type molecular sieve A 200 grams were placed in 1000 ml of ammonium fluoride (product of Beijing Chemical Plant, analytically pure) aqueous solution with a concentration of 0.2 moles, stirred at room temperature for 1 hour, filtered, dried at 120°C, and calcined at 600°C for 4 hours to obta...

example 2

[0050] Take by weighing 12 grams of example 1 disordered Y-type molecular sieve B and 100 grams of SB powder (gibbsite produced by Condea, Germany) and mix to obtain the precursor Si-2 of silicon oxide-alumina (dry basis 74% by weight) , the Si-2 was calcined at 550°C for 4 hours, its X-ray diffraction spectrum is shown in figure 1 b, see Table 1 for silicon oxide content and k value.

example 3

[0052] According to example 12 in CN1020269C, zeolite containing five-membered ring structure containing rare earth was synthesized to obtain zeolite D containing five-membered ring structure containing rare earth; according to exactly the same conditions, the crystallization temperature was 90°C to obtain partially crystallized zeolite E containing five-membered ring structure containing rare earth. The rare earth-containing five-membered ring structure zeolite E has a silica content of 93.3% by weight, an alumina content of 4.5% by weight, RE 2 o 3 1.5% by weight (RE 2 o 3 Represents rare earth oxides, wherein lanthanum oxide accounts for 26% by weight of the total amount of rare earth oxides, cerium oxide accounts for 51% by weight of the total weight of rare earth oxides, and other rare earth oxides account for 23% by weight of the total weight of rare earth oxides). The degree of crystallinity of the partially crystallized ZSM-5 molecular sieve E was determined to be 6%...

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Abstract

A hydrocracking catalyst for heavy fractional oil, contains a Si oxide-Al oxides composition and Mo and / or W and Ni and / or Co loaded on it. Its K value is 0.4 - 15A(cm2 g)-1. The catalyst comprises the Si-Al oxides 50 - 90wt%, with oxide as account, the content of Mo and / or W is 5 - 40wt%, the content of Ni and / or Co is 1 - 10wt%; K=B / MSiO2 is proton acidity of the Si-Al oxides, MSiO2 is the molar fraction in the oxides. The catalyst achieves better activity in heavy fraction oil hydrocracking process.

Description

technical field [0001] The present invention relates to a hydrocracking catalyst, more particularly to a heavy distillate hydrocracking catalyst. Background technique [0002] In recent years, the trend of heavy and inferior crude oil has become increasingly obvious worldwide, which has prompted the rapid development of hydrocracking technology for the purpose of high-quality and light-weight heavy distillate oil, and hydrocracking catalysts are the most important and one of the key factors. [0003] Hydrocracking catalyst is a dual-functional catalyst, which has cracking activity and hydrogenation activity at the same time, that is, it contains acidic components and hydrogenation active components at the same time, and its acidity is mainly composed of heat-resistant inorganic oxides and / or various A molecular sieve is provided; the hydrogenation active component is generally selected from metals, metal oxides and / or metal sulfides of Group VIB and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/16
Inventor 史建文聂红毛以朝董松涛石亚华李大东王奎熊振霖张晓辉
Owner CHINA PETROLEUM & CHEM CORP
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