Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite double microporous material and preparation thereof

A technology of microporous material and composite molecular sieve, applied in the field of composite double microporous material and its preparation, can solve the problems of poor catalyst reaction activity, no significant improvement in medium oil selectivity, no significant improvement in catalyst activity, etc. effect of temperature, improving catalytic performance, and improving medium oil selectivity

Active Publication Date: 2009-03-04
FUSHUN RES INST OF PETROLEUM & PETROCHEMICALS SINOPEC CORP
View PDF13 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of the use effect, the reactivity of this type of catalyst is still poor (greater than 392 ° C), and the selectivity of medium oil has not been significantly improved.
[0006] CN 1488726A (mixing of mesoporous molecular sieve and Y-type molecular sieve) and CN1667093A (mixing of Y-type molecular sieve and SAPO molecular sieve) etc. disclose the technology that contains mechanical mixing molecular sieve as hydrocracking catalyst component, but in the scheme that they involve, mainly For the treatment of distillate oil with high impurity content such as sulfur and nitrogen, the catalyst activity has not been significantly improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite double microporous material and preparation thereof
  • Composite double microporous material and preparation thereof
  • Composite double microporous material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Carry out industrially synthesized NaY molecular sieves for high-temperature roasting. The heating process is as follows: 10 °C / min from room temperature to 300 °C, constant temperature for 1 hour, and then 5 °C / min from 300 °C to 550 °C, constant temperature roasting 5 hours.

[0031] (2) Mix 10 grams of the Y molecular sieve prepared in step (1) with 100 ml of a 0.1 mol / L aqueous sodium hydroxide solution, and stir at 40° C. for 5 hours. Filter and dry.

[0032] (3) 10 grams of the treated NaY molecular sieves were mixed with 100 ml of tetraethylammonium hydroxide aqueous solution with a concentration of 1 mol / L, stirred and heated at 70° C. for 6 hours. Mixture 1 was prepared.

[0033] (4) 80ml sodium silicate (SiO 2 concentration is 8mol / L) was added into 120ml of water, stirred evenly to prepare solution 2.

[0034] (5) Slowly add solution 2 into solid-liquid mixture 1, stir evenly to obtain a reaction gel, and put it into a synthesis kettle. Then hydrothe...

Embodiment 2

[0038] (1) Convert industrial NH 4 The Y molecular sieve is calcined at a high temperature, and the heating process is as follows: from room temperature to 300°C at 10°C / min, constant temperature for 1 hour, then from 300°C to 550°C at 5°C / min, and constant temperature calcination for 4 hours.

[0039] (2) Mix 10 grams of the Y molecular sieve prepared in step (1) with 100 ml of a 0.4 mol / L aqueous sodium hydroxide solution, and stir at room temperature for 3 hours. Filter and dry.

[0040] (3) The Y molecular sieve treated in step (2) was mixed with 100 ml of tetraethylammonium hydroxide aqueous solution with a concentration of 1 mol / L, and concentrated with stirring and heating at 70° C. for 5 hours. Mixture 1 was prepared.

[0041] (4) 90ml sodium silicate (SiO 2 concentration is 8mol / L) was added into 110ml of water, stirred evenly to prepare solution 2.

[0042] (5) Slowly add solution 2 into solid-liquid mixture 1, stir evenly to obtain a reaction gel, and put it int...

Embodiment 3

[0045] (1) The industrial ultra-stable Y molecular sieve is roasted at high temperature. The heating process is as follows: from room temperature to 300°C at 10°C / min, constant temperature for 1 hour, then from 300°C to 650°C at 5°C / min, constant temperature Roast for 6 hours.

[0046] (2) Mix 10 grams of the Y molecular sieve prepared in step (1) with 100 ml of a 0.6 mol / L aqueous sodium hydroxide solution, and stir at 40° C. for 5 hours. Filter and dry.

[0047] (3) The Y molecular sieve treated in step (2) was mixed with 100 ml of tetraethylammonium hydroxide aqueous solution with a concentration of 2 mol / L, stirred and heated at 80° C. for 4 hours. Mixture 1 was prepared.

[0048] (4) 85ml sodium silicate (SiO 2 concentration is 8mol / L) was added into 120ml of water, stirred evenly to prepare solution 2.

[0049] (5) Slowly add solution 2 into solid-liquid mixture 1, stir evenly to obtain a reaction gel, and put it into a synthesis kettle. Then hydrothermal crystalliz...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a Y / Beta composite dual-microporous material. A composite molecular-sieve material has the structure that a Y molecular-sieve is taken as a kernel, a Beta molecular-sieve is taken as a shell, the two molecular-sieves are closely combined into a composite molecular-sieve particle, the Beta molecular-sieve wraps the Y molecular-sieve, and the content of the Y molecular-sieve is 30 to 70 percent in a composite molecular-sieve. The synthesis method of the composite molecular-sieve adopts a one-step crystallization method and utilizes a liquid concentration principle to lead a template agent and amorphous Si and Al in the Y molecular-sieve to form a secondary structure unit of the Beta molecular-sieve and even a Beta molecular-sieve seed crystal; then the Beta molecular-sieve grows through the guiding effect of the seed crystal. The Y / Beta composite dual-microporous material which is synthesized by adopting the method has the high composite advantage; the Beta molecular-sieve wraps the surface of the Y molecular-sieve, and the Beta molecular-sieve in the composite dual-microporous material is in the nano-scale, so the catalytic performance of the whole composite dual-microporous material is enhanced markedly; and the medium oil selectivity of the hydrocracking reaction can be increased, and the reaction temperature is reduced.

Description

technical field [0001] The invention relates to a compound double microporous material and a preparation method thereof, in particular to a double microporous molecular sieve which is highly compounded of Y-type molecular sieve and beta molecular sieve and a preparation method thereof. Background technique [0002] Hydrocracking technology is one of the main means of lightening heavy oil. High-quality chemical raw materials, light fuel oil and middle distillates are the main target products of this technology. At present, with the acceleration of upgrading of petrochemical products, stricter environmental protection regulations, and increasing demand for chemical raw materials, the status of hydrocracking technology in the entire petroleum refining industry has been further improved. [0003] In oil refining and processing technology, the development of the most suitable catalyst is considered to be one of the most critical and ideal choices, and the same is true for hydrocr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/46B01J29/06C01B39/24
Inventor 张志智凌凤香孙万付张喜文李瑞丰马静红
Owner FUSHUN RES INST OF PETROLEUM & PETROCHEMICALS SINOPEC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com