Catalytic cracking catalyst containing rare earth Y-type molecular sieve

A catalytic cracking, molecular sieve technology, applied in molecular sieve catalysts, catalytic cracking, physical/chemical process catalysts, etc., can solve problems such as complex solid-state ion exchange process

Pending Publication Date: 2021-08-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a rare earth-containing Y-type molecular sieve with a high exchange degree and unique pore size distribution characteristics for the complex proce

Method used

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  • Catalytic cracking catalyst containing rare earth Y-type molecular sieve
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  • Catalytic cracking catalyst containing rare earth Y-type molecular sieve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of a rare earth NAY molecular sieve in a catalytic cracking catalyst of the present invention will be described.

[0031] Take 100G NAY molecular sieve (China Petrochemical Catalyst Corporation Changling Branch, burns 74.1%, crystallinity of 89.3%, lower) and 1800 g of deionized water mixed beat, 10g of ammonium chloride solid, stir well to 70 ° C , Mix with a constant temperature for 2 h, filtration, washing, drying, add 20 ml of concentration of 357GRE 2 O 3 The chlorinated rare earth salt solution and 2 g of ammonium chloride were stirred up to 70 ° C and the pH of the slurry was adjusted to 4.5, and the temperature was stirred for 1 h with a dilute hydrochloric acid. After filtration, water washing, drying, externally applied pressure and added water, 500 ° C, an apparent pressure 0.3 MPa, and 100% water and thermofaked burn treatment for 2 h, to obtain a rare earth NAY molecular sieve sample, which is PDY-1.

[0032] Among the chemical composition...

Embodiment 2

[0044] Example 2 An preparation of a rare earth NAY molecular sieve in a catalytic cracking catalyst of the present invention will be described.

[0045] Take 100G NAY molecular sieve (China Petrochemical Catalyst Corporation Changling Branch, Crystal Cell 74.1%, crystallinity 89.3%, the same) and 1000 g of deionized water mixed, 5 g ammonium sulfate solid, stirred up to 80 ° C, Heat temperature was stirred for 2 h, filtered, washed, dry, dried, add 16 ml of concentration of 357GRE 2 O 3 The chlorinated rare earth salt solution and 8 g of ammonium chloride were stirred up, and the pH of the slurry solution was adjusted to 4.0, and the temperature was stirred at a constant temperature for 1.5 h.

[0046] After filtration, water washing, dry, externally applied pressure and add water, and pressurized water and hot roasting treatment at 430 ° C, an apparent pressure 0.8 MPa, 50% water vapor atmosphere, to obtain a rare earth NAY molecular sieve sample, recorded as PDY-2 .

[0047] Th...

Embodiment 3

[0059] Example 3 Preparation of a rare earth NAY molecular sieve in a catalytic cracking catalyst of the present invention.

[0060] Take 100 g of NAY molecular sieves and 2200 g of deionized water mixing, 20 g of ammonium sulfate solid, stirred up to 80 ° C, stirring at a constant temperature 1.5 h, filtrate, washed, dry, dry, add 24 ml concentration of 357GRE 2 O 3 The chlorinated rare earth salt solution of / L is stirred up to 70 ° C and the pH of the slurry is adjusted to 3.5 with dilute hydrochloric acid, and the constant temperature is stirred for 1 h.

[0061] After filtration, water washing, dry, externally applied pressure and add water, 520 ° C, oxidative pressure 0.4 MPa, 100% water vapor atmosphere, pressure water, heat baked treatment 1.5 h, to obtain a rare earth NAY molecular sieve sample, recorded as PDY-3 .

[0062] In the chemical composition of PDY-3, the oxidized rare earth was 11.4% by weight.

[0063] PDY-3 BJH aperture distribution curve and XRD spectrum ha...

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Abstract

The invention provides a catalytic cracking catalyst containing a rare earth Y-type molecular sieve. The catalyst contains the rare earth Y-type molecular sieve, an inorganic oxide binder and a natural mineral substance, and is characterized in that the rare earth Y-type molecular sieve at least has mesoporous pore size distribution at 2-3 nm, 3-4 nm and 10-30 nm, and in a BJH pore size distribution spectrogram, the ratio of the peak area of 2-3 nm pore size distribution to the peak area of the total pores is greater than 0.1, and the ratio of the peak area of 10-30 nm pore size distribution to the peak area of the total pores is greater than 0.2.

Description

Technical field [0001] The present invention relates to a catalytic cracking catalyst, and further, the present invention relates to a catalytic cracking catalyst comprising a rare earth Y-type molecular sieve. Background technique [0002] Catalytic cracking is the most important production technology today, catalytic cracking devices are used to convert heavy oil and residual oil into gasoline, diesel and light gas components. In the industry, the catalytic cracking device must include two portions of the reaction and the catalyst to regenerate, so the catalyst needs to consider factors such as catalytic activity, selectivity, and the Y-shaped molecular sieve, the Y-shaped molecular sieve is more used in cracking reactions. As a catalytic cracking catalyst active component, it is responsible for producing gasoline range molecular products in catalytic cracking catalysts. [0003] Rare earth Y molecular sieves of rare earths are highly active components of catalytic cracking cat...

Claims

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Application Information

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IPC IPC(8): B01J29/08B01J35/10C10G11/05
CPCB01J29/088B01J35/10B01J35/108B01J35/1061B01J35/1057C10G11/05C10G2400/02
Inventor 罗一斌王成强郑金玉舒兴田
Owner CHINA PETROLEUM & CHEM CORP
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