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Anti-basic nitrogen diesel oil yield increase catalysis cracking catalyst and preparation method thereof

A cracking catalyst and diesel oil technology, which is applied in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of undiscovered anti-alkali nitrogen prolific diesel cracking catalysts, low activity, and deterioration of product distribution, and achieve high The effect of catalytic cracking activity, high conversion rate and high diesel yield

Active Publication Date: 2014-12-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing cracking catalysts still have the problems of low activity and poor product distribution when used in base-nitrogen-containing feedstocks, and no cracking catalysts related to base-nitrogen-resistant and prolific diesel oil have been found.

Method used

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  • Anti-basic nitrogen diesel oil yield increase catalysis cracking catalyst and preparation method thereof
  • Anti-basic nitrogen diesel oil yield increase catalysis cracking catalyst and preparation method thereof
  • Anti-basic nitrogen diesel oil yield increase catalysis cracking catalyst and preparation method thereof

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preparation example Construction

[0025] In the present invention, the second Y-type molecular sieve is a magnesium-containing ultra-stable Y-type molecular sieve, and the magnesium content in the magnesium-containing ultra-stable Y-type molecular sieve is 0.1-25% by weight, preferably 0.5% by weight. -25% by weight. The magnesium-containing ultra-stable Y-type molecular sieve can be prepared according to conventional methods, and one of the preparation methods can include, for example: dissolving or fully wet-grinding magnesium compounds (such as selected from magnesium oxide, magnesium chloride, magnesium sulfate and at least one of magnesium nitrate) are uniformly dispersed in ultra-stable Y-type molecular sieve (USY molecular sieve) slurry, with or without ammonia water, mixed uniformly, then dried and roasted; another preparation method may include, for example: The milled ultra-stable Y-type molecular sieve (USY molecular sieve) is uniformly dispersed in a solution of magnesium compound (for example, at ...

Embodiment 1

[0052] This example is used to illustrate the catalytic cracking catalyst provided by the present invention.

[0053] (1) Preparation of modified Y-type molecular sieve

[0054] In the reactor, add 5.0 kilograms of NaY molecular sieves on a dry basis (Changling Catalyst Factory provides, crystallinity 86%, skeleton silicon-aluminum ratio (SiO 2 / Al 2 o 3 molar ratio) 5.2) and 4 kg of deionized water, slowly add 4.0 liters of rare earth chloride solution (provided by Qilu Catalyst Factory, RE 2 o 3 content of 222.5 grams per liter), adjust the system pH=3.5 with 4% by weight dilute hydrochloric acid, heat up to 90°C and stir for 1.5 hours, filter, wash, and dry; then bake at 650°C and 100% steam atmosphere for 2 hours to prepare Get "cross-baked" rare earth sodium Y, which is recorded as modified molecular sieve ABY-1A.

[0055] Take 2.0 kg of modified molecular sieve ABY-1A dry basis and put it into the reaction kettle, add 1.6 kg of deionized water, and slowly add 0.50 l...

Embodiment 2-7

[0062] This example is used to illustrate the catalytic cracking catalyst provided by the present invention.

[0063] Prepare catalytic cracking catalyst according to the method of embodiment 1 respectively, difference is, in step (2), mesoporous silicon-aluminum material, kaolin, described modified Y-type molecular sieve ABY-1, described magnesium-containing ultrastable Y-type molecular sieve (S1), the DASY2.0 molecular sieve (S2), pseudo-boehmite and alumina sol are shown in Table 1 below in terms of dry basis. Molecular sieves are added in the form of mixed slurry, and the feeding amount of each component is calculated in parts by weight, so as to prepare catalytic cracking catalysts C2-C7 respectively.

[0064] Table 1

[0065]

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Abstract

The invention relates to an anti-basic nitrogen diesel oil yield increase catalysis cracking catalyst and a preparation method thereof. The catalyst comprises a cracking activity component, a mesoporous silicon-aluminum material, an adhesive and clay, wherein the cracking activity component comprises a first Y type molecular sieve and a second Y type molecular sieve, and contains or does not contain a third Y type molecular sieve, rare earth content in the first Y type molecular sieve is 8-23 wt% (calculated as rare earth oxide), iron content in the first Y type molecular sieve is 0.1-3.0 wt% (calculated as Fe2O3), copper content in the first Y type molecular sieve is 0-3.0 wt% (calculated as CuO), phosphorus content in the first Y type molecular sieve is 0-2.0 wt% (calculated as P2O5), sodium oxide content in the first Y type molecular sieve is 0.1-2.5 wt%, the second Y type molecular sieve is a magnesium-containing ultra-stable Y type molecular sieve, and the third Y type molecular sieve is a rare earth-containing DASY molecular sieve. The catalyst preparation method comprises: carrying out pulping on a cracking activity component, a mesoporous silicon-aluminum material, an adhesive and clay, and carrying out spray drying, washing, filtering and drying. With application of the catalyst in catalytic cracking of high basic nitrogen content hydrocarbon oil, high conversion rate and high diesel oil yield are provided.

Description

technical field [0001] The invention relates to a catalytic cracking catalyst, and more particularly to a catalytic cracking catalyst capable of resisting alkaline nitrogen and producing diesel oil. 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. With the depletion of petroleum resources and the requirements of environm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/80B01J29/14B01J29/08C10G11/05
Inventor 杨雪王维家邓景辉任飞欧阳颖唐立文郑金玉许明德罗一斌朱玉霞
Owner CHINA PETROLEUM & CHEM CORP
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