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Cracking catalyst, process for preparation thereof, and process for catalytic cracking of hydrocarbon oil

A catalytic cracking and catalyst technology, applied in the direction of catalyst activation/preparation, catalytic cracking, physical/chemical process catalysts, etc., can solve the problems of FCC gasoline yield reduction, tar increase, etc., to reduce burden, high cracking activity, and reduce costs Effect

Inactive Publication Date: 2009-04-08
GASOLINEEUM ENERGY CENT FOUND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the disadvantage that the yield of FCC gasoline is reduced
This method has the problem that although the amount of olefins that contribute to the octane increase increases, the amount of tar deposited on the catalyst also increases

Method used

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  • Cracking catalyst, process for preparation thereof, and process for catalytic cracking of hydrocarbon oil
  • Cracking catalyst, process for preparation thereof, and process for catalytic cracking of hydrocarbon oil
  • Cracking catalyst, process for preparation thereof, and process for catalytic cracking of hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093]

[0094] Catalyst A was prepared by the following procedure using the following ingredients: Ultrastable Y-type zeolite as a crystalline aluminosilicate having the properties shown in Table 1; silicic acid as a binder Sodium (JIS No.3 sodium silicate; SiO 2 content of 28.9 mass %); kaolinite as a clay mineral, and hydrated alumina (trade name: Pural SB; manufactured by Sasol Co., Ltd.) as a catalyst additive, which has a boehmite-like structure.

[0095] The solution prepared after mixing 138g of sodium silicate aqueous solution with distilled water was added dropwise in dilute sulfuric acid to obtain silica hydrosol (SiO 2 content is 10.2% by mass). On the other hand, distilled water was added to 76.0 g (on a dry basis) of Ultrastable Y-type zeolite having the properties shown in Table 1 to prepare a zeolite slurry. 73.4 g (dry basis) of kaolinite and 10.0 g (dry basis) of hydrated alumina were added to the silica hydrosol. These ingredients were mixed together, a...

Embodiment 2

[0102] Ultrastable Y-type zeolite having the properties shown in Table 2 was used as the crystalline aluminosilicate.

[0103] [Table 2]

[0104]

[0105] Catalyst B was prepared according to the same procedure as in Example 1, except that the crystalline aluminosilicate described in Table 2 was used, and the amount of mixed kaolinite was changed to 73.0 g (on a dry basis), and The catalyst was ion-exchanged with lanthanum so that the content of lanthanum oxide was 0.5% by mass in a dry state.

[0106] The same procedure as in Example 1 was used to detect the xenon adsorption amount of catalyst B. Calculated from the results, the xenon adsorption capacity (N) is 2.46×10 under the condition that the xenon adsorption pressure is 650 Torr 20 molecules / gram of catalyst.

Embodiment 3

[0108] Ultrastable Y-type zeolite having the properties shown in Table 2 was used as the crystalline aluminosilicate.

[0109] Catalyst C is prepared according to the same procedure as in Example 1, and the difference is that the amount of ultrastable Y-type zeolite is changed from 76.0g (in dry state) to 80.0g (in dry state), and the amount of kaolinite is changed to 80.0g (in dry state). The amount was changed from 73.4 g (in dry state) to 67.6 g (in dry state), and the catalyst was ion-exchanged with lanthanum so that the content of lanthanum oxide was 1.2 mass % in dry state.

[0110] The xenon adsorption amount of catalyst C was detected by the same procedure as in Example 1. Calculated from the results, the xenon adsorption capacity (N) is 2.35×10 under the condition that the xenon adsorption pressure is 650 Torr 20 molecules / gram of catalyst.

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Abstract

The present invention provides a cracking catalyst which has high cracking activity and makes it possible to produce high-octane FCC gasoline through efficient progress without lowering the yield of gasoline; a process for the preparation of the catalyst; and a process for catalytic cracking of hydrocarbon oil with the same. A catalyst for catalytic cracking of hydrocarbon oil comprising a crystalline aluminosilicate having a predetermined composition, a binder, and clay mineral, which has contents of sodium and potassium in terms of oxides (Na2O and K2O) of 0.5% by mass or below, contents of rare earth metals in terms of oxides (RE2O3 wherein RE is a rare earth element) of 3.0% by mass or below, a mass ratio of [RE2O3 + Na2O + K2O] / [crystalline aluminosilicate] of 0.1 or below, and a xenon adsorption of at least 2.20OE0<20> molecules per g of the catalyst as determined at 25 DEG C and a xenon partial pressure of 650torr; a process for the preparation of the catalyst; and a process for catalytic cracking of hydrocarbon oil with the same.

Description

technical field [0001] The present invention relates to a catalyst for catalytic cracking of hydrocarbon oil, a method for preparing the catalyst and a method for catalytic cracking of hydrocarbon oil using the catalyst. More specifically, the present invention relates to a catalytic cracking catalyst having a high cracking activity in fluidized catalytic cracking of hydrocarbon oil (hereinafter generally referred to as "FCC") and capable of making the gasoline fraction obtained by the cracking reaction (hereinafter generally referred to as "FCC gasoline") has an increased octane number without reducing the yield of gasoline, and the present invention also relates to a method for preparing the catalyst and a method for catalytic cracking of hydrocarbon oil using the catalyst. Background technique [0002] In recent years, awareness of global environmental protection has increased, and measures to solve the greenhouse effect have become increasingly important. In particular,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/16B01J37/00B01J37/06C10G11/05
CPCB01J29/088B01J21/16B01J35/002C10G2400/02B01J29/06B01J2229/42C10G11/05B01J35/30B01J37/00B01J37/06
Inventor 渡边克哉
Owner GASOLINEEUM ENERGY CENT FOUND
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