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A catalytic cracking catalyst for blending tight oil and its preparation method

A catalytic cracking and catalyst technology, applied in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve problems such as difficulty in adapting to catalytic cracking, and achieve high catalytic cracking activity, large matrix specific surface area, and high gasoline yield Effect

Active Publication Date: 2018-06-29
SHANDONG DUOYOU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Due to the small pores of traditional microporous molecular sieves, it shows an obvious effect of restricting the diffusion of larger raw material molecules, especially when some pores are blocked by heavy metals, making it difficult for pure microporous molecular sieves to be suitable for blending with high iron content. Catalytic cracking of tight oil requires the use of molecular sieve materials with large pore size and no diffusion limitation for reactant molecules

Method used

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  • A catalytic cracking catalyst for blending tight oil and its preparation method
  • A catalytic cracking catalyst for blending tight oil and its preparation method
  • A catalytic cracking catalyst for blending tight oil and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Based on the dry basis weight of the catalytic cracking catalyst, the mass percent of each component in the catalyst is: 15% of the first molecular sieve component, 15% of the second molecular sieve component, and 15% of the modified pseudo-boehmite , pseudo-boehmite 5%, clay 40% and binder 10%.

[0052] One, prepare the second molecular sieve component, the preparation method is as follows:

[0053] In the first step, 2.55 kg of sodium silicate is mixed with 2.60 kg of water to obtain solution one,

[0054] Mix 0.035 kg of sodium hydroxide, 0.164 kg of sodium aluminate and 1.60 kg of water to obtain solution 2, add solution 1 to solution 2 at a constant speed, control the feeding time of solution 1 at 1.0 hour, stir for 3 hours after adding, and then heat up Continue stirring at 100°C for 8 hours to obtain a Y zeolite nano precursor;

[0055] In the second step, 6.949 kilograms of 1-hexadecyl-3-methyl imidazole bromide and 24 kilograms of water are mixed to obtain so...

Embodiment 2

[0071] Based on the dry basis weight of the catalytic cracking catalyst, the mass percent of each component in the catalyst is: 35% of the first molecular sieve component, 25% of the second molecular sieve component, and 10% of the modified pseudo-boehmite , pseudo-boehmite 9%, clay 11% and binder 10%.

[0072] One, prepare the second molecular sieve component, the preparation method is as follows:

[0073] In the first step, 2.55 kg of sodium silicate is mixed with 2.60 kg of water to obtain solution one,

[0074] Mix 0.035 kg of sodium hydroxide, 0.164 kg of sodium aluminate and 1.60 kg of water to obtain solution 2, add solution 1 to solution 2 at a constant speed, control the feeding time of solution 1 at 0.5 hours, stir for 3 hours after adding, and then heat up Continue stirring at 100°C for 8 hours to obtain a Y zeolite nano precursor;

[0075] In the second step, 6.949 kilograms of 1-hexadecyl-3-methyl imidazole bromide and 24 kilograms of water are mixed to obtain s...

Embodiment 3-5

[0090] Catalytic cracking catalysts were prepared according to the method of Example 1. The difference was that the feed amounts were shown in Table 2 below. After mixing and beating evenly, they were spray-dried. The feed amounts of each component were calculated in parts by weight, so as to obtain Catalytic cracking catalysts C-3 to C-5. Catalyst components are shown in Table 2 in the embodiment 1-5.

[0091] Components in catalytic cracking catalysts in Table 2 Examples 1-5 (on a dry basis)

[0092]

[0093] It has been proved by experiments that the clay can be one or a mixture of kaolin, halloysite, montmorillonite, diatomaceous earth, halloysite, saponite, retortite, sepiolite, attapulgite and bentonite; The binder can be one or more of alumina sol, silica sol or silica-alumina gel. The first molecular sieve component is a mixture of one or more of rare earth Y-type molecular sieve REY, rare earth ultra-stable Y-type molecular sieve REUSY, and ultra-stable Y-type mo...

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Abstract

The invention discloses a catalytic cracking catalyst blended with dense oil and a preparation method thereof. The catalyst includes the following components: a first molecular sieve component, a second molecular sieve component, modified pseudo-boehmite, and pseudo-boehmite. Aluminum stone, clay and binders. The beneficial effects of the present invention are: it has a large matrix specific surface area, exhibits relatively high catalytic cracking activity during the catalytic cracking reaction of raw oil blended with dense oil, and improves the content of alkaline nitrogen compounds blended Higher dense oil (such as mixed oil with a basic nitrogen content of about 1200-2000 μg / g) has a higher conversion rate during catalytic cracking treatment, and can obtain higher gasoline and diesel yields, especially higher yields of gasoline and diesel. High yield of light oils such as gasoline.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a catalytic cracking catalyst blended with tight oil and a preparation method of the catalytic cracking catalyst. Background technique [0002] Fluid catalytic cracking, as an important means of secondary processing of crude oil, occupies a pivotal position in the oil refining industry, and every small progress of it will bring huge economic benefits to the enterprise. Fluid catalytic cracking catalyst is one of the technical cores of the catalytic cracking process, and its technological progress is also an important means for the fluid catalytic cracking process to obtain the maximum benefit. [0003] In the catalytic cracking process, heavy fractions such as vacuum distillate oil or residues of heavier components react in the presence of catalysts to convert them into high value-added products such as liquefied gas, gasoline, and diesel. With the increasing depletion of petr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/08B01J29/03B01J35/10C10G11/18C10G11/05
CPCC10G11/05C10G11/18B01J29/005B01J29/03B01J29/084C10G2400/04C10G2400/02C10G2300/70B01J35/615B01J35/633
Inventor 于心玉郭万里
Owner SHANDONG DUOYOU TECH
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