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Fluid catalytic cracking catalyst containing aluminum sol binder, and preparation method thereof

A technology of cracking catalyst and aluminum sol, which is applied in the direction of catalytic cracking, physical/chemical process catalyst, molecular sieve catalyst, etc., and can solve the problem of low activity of cracking catalyst

Active Publication Date: 2016-01-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved in the present invention is to provide a cracking catalyst containing a modified aluminum sol binder, which has a higher cracking activity, aiming at the problem that the activity of the existing cracking catalyst containing the aluminum sol binder is not high

Method used

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  • Fluid catalytic cracking catalyst containing aluminum sol binder, and preparation method thereof
  • Fluid catalytic cracking catalyst containing aluminum sol binder, and preparation method thereof
  • Fluid catalytic cracking catalyst containing aluminum sol binder, and preparation method thereof

Examples

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preparation example Construction

[0053] The preparation method of catalytic cracking catalyst provided by the invention preferably comprises the following steps:

[0054] (1) Contact NaY molecular sieve with rare earth solution or the mixed solution of rare earth solution and ammonium salt, after filtering, washing and drying, perform the first roasting treatment to obtain rare earth sodium Y molecular sieve; then beat rare earth sodium Y molecular sieve And contact with ammonium salt solution or acid solution, filter and mix with rare earth solution, adjust the pH value of the slurry to 6-10, filter or not filter, dry, and perform the second roasting treatment to obtain the rare earth Y of the present invention type molecular sieve.

[0055] In the above preparation process, the silicon-aluminum atomic ratio of the raw material NaY molecular sieve is preferably greater than 2.5 and the crystallinity is greater than 80%. In the process of contacting the NaY molecular sieve with the rare earth solution or the...

Embodiment approach

[0063] According to the preparation method of the catalytic cracking catalyst provided by the present invention, the preparation method of the modified aluminum sol, the first specific embodiment, comprises the following steps:

[0064](1) Add the metal aluminum source, the silicon source of the soluble silicon-containing compound, and water into the reactor, wherein the temperature of the mixture obtained in the reactor is not lower than 60°C, for example, 60-102°C. Heating, or reach described temperature by mixing the higher raw material of temperature; The consumption of water makes in the reactor by the silicon element that soluble silicon-containing compound introduces and water (comprising the water that adds and the water that soluble silicon-containing compound silicon source introduces ) in a weight ratio of 0.1-10:100, such as 1-10:100 or 0.1-5:100 or 0.05-1.5:100 or 0.1-1.4:100 or 0.15-1.3:100; metal in terms of Al The weight ratio of the aluminum source to the solu...

Embodiment 1

[0086] 280 grams of aluminum chips (calculated as Al), 1055 grams of deionized water, and 115 grams of water glass aqueous solution (containing Si9.33% by weight, Na4.63% by weight) were put into a three-necked flask and heated to 60°C. Slowly add 678 ml of 1:1 chemically pure hydrochloric acid into the three-necked flask, and the addition time of hydrochloric acid is 3 hours; then control the reaction temperature at, for example, 90-95°C, and react for 19 hours; cool the product to 60-70°C, and filter. Residual aluminum shavings from the reaction were weighed to be 29 grams, i.e. an excess of 11.6% aluminum, and the product was analyzed as follows: Al content 12.20% by weight, Cl content 6.5% by weight, Si content 0.52% by weight, Al / Cl (weight ratio) 1.88: 1. Al / Si (weight ratio) 23.5:1, pH 4.0. The obtained modified aluminum sol is designated as SA-1.

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Abstract

The invention discloses a fluid catalytic cracking catalyst containing an aluminum sol binder, and a preparation method thereof. The fluid catalytic cracking catalyst comprises a cracking active component, clay, and a binder; the binder comprises a modified aluminum sol; Al concentration of the modified aluminum sol ranges from 8 to 13wt%, Cl concentration ranges from 4 to 9wt%, Si concentration ranges from 0.1 to 1wt%, Al / Cl weight ratio ranges from 1.2:1 to 2.2:1, and pH value ranges from 2.2 to 5.2. The preparation method of the fluid catalytic cracking catalyst comprises following steps: a slurry is prepared from the cracking active component, clay, the binder, and water, and spray drying is carried out. A preparation method of the modified aluminum sol comprises following steps: metal aluminum, water, and a soluble silicon-containing compound are delivered into a reactor, and a chloride is added for reaction, wherein aluminum silicon feeding ratio is controlled to be 10:1 to 150:1. Compared with conventional aluminum sol binder cracking catalyst, the fluid catalytic cracking catalyst possesses higher cracking activity and coke selectivity.

Description

technical field [0001] The invention relates to a cracking catalyst containing an aluminum sol binder and a preparation method thereof, more particularly, to a cracking catalyst containing a modified aluminum sol binder and a preparation method thereof. Background technique [0002] Catalytic cracking (FCC) is an important secondary processing process of crude oil and occupies a pivotal position in the oil refining industry. In the catalytic cracking process, heavy fractions such as vacuum distillate oil or residues of heavier components react in the presence of catalysts and are converted into high value-added products such as liquefied gas, gasoline, and diesel oil. In this process, it is usually necessary to use Catalytic material with high cracking activity. Microporous zeolite catalytic materials are widely used in petroleum refining and processing industries due to their excellent shape-selective catalytic performance and high cracking reactivity. [0003] Y-type mol...

Claims

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Application Information

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IPC IPC(8): B01J29/08C10G11/05
Inventor 宋艾罗达志坚赵留周严加松朱玉霞
Owner CHINA PETROLEUM & CHEM CORP
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