Mordenite-Beta molecular sieve-Y molecular sieve composite material and synthesis method

A mordenite and composite material technology, applied in molecular sieve catalysts, chemical instruments and methods, catalyst carriers, etc., can solve the problems of affecting the catalytic performance of synthetic products, unfavorably forming composite pores, and difficult to control the ratio, and reduce electrostatic repulsion. The effect of acid property optimization and pore channel optimization

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above ternary composite molecular sieves also adopt a synthetic method similar to that of a single zeolite. The binding force between different zeolite components in the synthetic product is also weak, the structure is loose, or it is in a sepa

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
  • Mordenite-Beta molecular sieve-Y molecular sieve composite material and synthesis method
  • Mordenite-Beta molecular sieve-Y molecular sieve composite material and synthesis method
  • Mordenite-Beta molecular sieve-Y molecular sieve composite material and synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]Preparation of nano-beta molecular sieve: Dissolve 0.5g sodium hydroxide and 0.9 g sodium aluminate in 60mL 25% TEAOH, add 15g white carbon black after the dissolution is complete, stir for 60min, put it into a closed reaction kettle, and put it in an oven Crystallization at 140°C for 30h. Then the obtained product was washed 4 times with distilled water to neutrality, and then dried at 120° C. for 12 hours to obtain the desired nano Beta molecular sieve of the present invention.

Embodiment 2

[0038] Preparation of nano-mordenite: Dissolve 0.35g of sodium hydroxide and 1.5g of sodium aluminate in 50mL of 25% TEAOH, add 15g of white carbon black after the dissolution is complete, stir for 60min, put it into a closed reaction kettle, and put it in an oven Crystallization at 170°C for 25h. Then the obtained product was washed with distilled water for 4 times to neutrality, and then dried at 120° C. for 12 hours to obtain the desired nanometer mordenite of the present invention.

Embodiment 3

[0040] (1) Take 1g of the nano-beta zeolite prepared in Example 1, 1g of the nano-MOR prepared in Example 2, and 10g of Y-type molecular sieve into 200 mL of hydrochloric acid solution with a pH of 5, then add 1.1 g of NaCl, stir for 30min, and then Place in an ultrasonic cleaner for 5 hours. Then the obtained product was washed 4 times with distilled water to neutrality, then dried at 120°C for 12 hours, and finally calcined at 500°C for 5 hours to obtain a zeolite mixture.

[0041] (2) Dissolve 0.25g of sodium hydroxide in 30mL of 25% TEAOH and stir for 30min. Then add 0.5g of sodium aluminate and stir for 30 min. Add 7g of white carbon black slowly and stir for 30 min. Add 5 g of the zeolite mixture prepared in step (1) and stir for 30 min. The reactant mixture was then placed in an oven and dried at 100 °C until the water evaporated completely. Then place the obtained reactant dry gel on the upper part of the reactor, and place 10 mL of water at the bottom of the react...

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
Thicknessaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Pore surface areaaaaaaaaaaa
Login to view more

Abstract

The invention provides a mordenite-Beta molecular sieve-Y molecular sieve composite material and a synthesis method thereof. The mordenite-Beta molecular sieve-Y molecular sieve composite material contains a Y molecular sieve, a Beta molecular sieve and mordenite, takes a Y molecular sieve as a core, and the Beta molecular sieve and mordenite as a shell, and the Beta molecular sieve and mordenite coexist in the shell. The synthesis method of the composite molecular sieve material comprises the following steps: performing ultrasonic and thermal treatment to the nano-beta molecular sieve, nanometer mordenite and the Y molecular sieve, then mixing the treated zeolite mixture with inorganic base, distilled water, a template agent, an aluminum source and a silicon source, and synthesizing the mordenite-Beta molecular sieve-Y molecular sieve composite material by adopting a vapor phase method. The MOR-Beta-Y molecular sieve composite material has more reasonable acid property and pore distribution, and higher catalysis performance can be provided.

Description

technical field [0001] The invention belongs to the field of synthesis of molecular sieve catalytic materials, in particular to a mordenite / Beta molecular sieve / Y molecular sieve composite molecular sieve material and a synthesis method thereof. Background technique [0002] Zeolite molecular sieves are an important class of industrial catalytic materials, widely used in industrial catalytic reactions. However, with the advancement of technology and increasingly stringent environmental protection regulations, the disadvantages of a single type of zeolite, such as single pore size, weak acidity, low activity and poor selectivity, are gradually magnified. Composite molecular sieve is a composite molecular sieve with a special structure, which is a co-crystal formed by two or more molecular sieves, or a composite crystal with the structural characteristics of two or more molecular sieves. Due to the particularity of the composite molecular sieve structure, it has a more reason...

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
IPC IPC(8): B01J29/80B01J32/00
Inventor 范峰凌凤香王少军张会成陈晓刚杨春雁
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap