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Cracking catalyst

A cracking catalyst and catalyst technology, applied in cracking, catalytic cracking, petroleum industry, etc., can solve expensive problems, achieve the effect of reducing the yield of heavy oil, reducing the sulfur content of gasoline, and improving the stability of hydrothermal activity

Active Publication Date: 2007-06-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis of mesoporous materials often uses expensive templates and organic silicon sources, and most of them have to undergo high-temperature hydrothermal post-treatment processes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Synthesis of mesoporous material Mg-SA-1: put the aluminum sulfate solution in a beaker, add ammonia water drop by drop under stirring, adjust the pH value of the system to 8, neutralize the gelling temperature at 55°C, add Water glass, heated up to 80°C for aging for 2 hours, then dissolved quantitative magnesium nitrate in water, added to the above-mentioned slurry, and continued aging for 4 hours; use ammonium chloride solution according to precipitate (dry basis): ammonium salt: H 2 O=1:0.8:15 weight ratio, carry out ion exchange on the precipitate at 60°C to remove the sodium ions therein, repeat the exchange twice, each time for 0.5 hours, wash and filter with water after each exchange, and then in 120°C Drying at low temperature for 10 hours, followed by calcination at 600°C for 4 hours to obtain a magnesium-containing mesoporous material, denoted as Mg-SA-1. Its elemental analysis weight chemical composition is 0.19Na 2 O·68.9Al 2 o 3 27.3 SiO2 2 3.6 MgO.

...

Embodiment 2

[0024] Synthesis of mesoporous material Ti-SA-1: the preparation method is the same as in Example 1, wherein titanium tetrachloride is used instead of magnesium nitrate to obtain a titanium-containing mesoporous material, which is designated as Ti-SA-1. Its elemental analysis weight chemical composition is 0.20Na 2 O·69.0Al 2 o 3 26.2SiO2 2 4.5TiO 2 .

[0025] The preparation process of the catalyst was the same as in Example 1, wherein the mesoporous material added was Ti-SA-1, and the catalyst C-2 was obtained by spraying, roasting, washing and drying according to the method in Example 1.

[0026] The composition of catalyst C-2 is: 30% by weight of USY molecular sieve, 28% by weight of kaolin, 8% by weight of aluminum sol, 24% by weight of pseudo-boehmite, and 110% by weight of Ti-SA-1.

Embodiment 3

[0028] Synthesis of mesoporous material V-SA-1: the preparation method is the same as in Example 1, wherein vanadium oxalate is used instead of magnesium nitrate to obtain a vanadium-containing mesoporous material, which is denoted as V-SA-1. Its elemental analysis weight chemical composition is 0.18Na 2 O·69.2Al 2 o 3 26.6SiO2 2 4.0V 2 o 5 .

[0029] The preparation process of the catalyst is the same as in Example 1, wherein the added mesoporous material is V-SA-1, and the catalyst C-3 is obtained through spraying, roasting, washing and drying according to the method in Example 1.

[0030] The composition of catalyst C-3 is: 30% by weight of USY molecular sieve, 28% by weight of kaolin, 8% by weight of aluminum sol, 24% by weight of pseudo-boehmite, and 110% by weight of V-SA-1.

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PUM

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Abstract

The invention discloses a cracking catalyst. The character is in that the catalyst has one kind of mesoporous material which is the (0-0.3)Na2O .(40-85)Al2O3 .(10-55)SiO2 .(1-20)MxOy, the metal M is one element in IB, IIB,IVB,VB,VIB,VIIB,VIIIB or lanthanide series rare earth; The x is the highest valence of O, y is the highest valence of M. The structure of the mesoporous material is same as the thin diaspore structure and the specific area is 200-400 square m / g, the hole volume is 0.5-2.0ml / g and the average size is 8-20nm, the most probable size is 5-15nm. The catalyst can be used in the catalytic cracking reaction directly, so it can improve the raw oil and the heavy oil percent conversion but decrease the sulfur content of FCC gasoline.

Description

technical field [0001] The present invention relates to a cracking catalyst, in particular to a fluidized catalytic cracking catalyst containing mesoporous material as a desulfurization active component. Background technique [0002] Fluid Catalytic Cracking (FCC) is a petroleum refining process, which is the main process of converting heavy fractions such as vacuum distillate oil or residues of heavier components into fractions with smaller molecules. It has been used on a large scale in petroleum refining commercial applications. About 70-80% of gasoline comes from gasoline obtained from fluid catalytic cracking (FCC), and about 90% of the sulfur comes from FCC gasoline. Due to the increasing emphasis on environmental protection and the emission of Euro II and Euro III With the promulgation of standards, the restrictions on sulfur content, olefins and aromatics in gasoline have become more stringent. Therefore, the removal of sulfur compounds in the catalytic cracking pro...

Claims

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Application Information

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IPC IPC(8): C10G11/02
Inventor 郑金玉罗一斌宗保宁舒兴田
Owner CHINA PETROLEUM & CHEM CORP
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