Hydrophobic efficient VOC molecular sieve adsorbent and preparation method thereof

A molecular sieve and hydrophobic technology, applied in the field of hydrophobic high-efficiency VOC molecular sieve adsorbent and preparation, can solve the problems of reduced adsorption capacity and low regeneration efficiency, and achieve the effect of reduced adsorption, high regeneration efficiency, and no obvious decrease in adsorption.

Pending Publication Date: 2022-04-29
JIANGXI BAOAN NEW MATERIAL TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the current existing adsorbent and its preparation technology still have low regeneration efficien

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
  • Hydrophobic efficient VOC molecular sieve adsorbent and preparation method thereof
  • Hydrophobic efficient VOC molecular sieve adsorbent and preparation method thereof
  • Hydrophobic efficient VOC molecular sieve adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] refer to figure 1 , the present invention proposes a hydrophobic high-efficiency VOC molecular sieve adsorbent, including the following raw materials in parts by weight: 95 parts of ZSM-5 molecular sieve, 45 parts of Beta molecular sieve, 45 parts of 13X molecular sieve, 50 parts of Y-type molecular sieve, 35 parts of silicon, aluminum 15 copies;

[0025] Its preparation method comprises the following steps:

[0026] S1: Raw material preparation: ZSM-5 molecular sieve with MFI structure is selected as the main material of the adsorption material, and the silicon-aluminum ratio of the molecular sieve with a mass percentage of 50% is selected as 23. In order to improve the hydrophobicity of the adsorbent, the silicon-aluminum ratio ∞ is preferred Pure silicon molecular sieves, and add Beta molecular sieves, 13X molecular sieves and Y-type molecular sieves, wherein the addition volume ratio of the Beta molecular sieves, 13X molecular sieves and Y-type molecular sieves is ...

Embodiment 2

[0031] refer to figure 1 , the present invention proposes a hydrophobic high-efficiency VOC molecular sieve adsorbent, including the following raw materials in parts by weight: 98 parts of ZSM-5 molecular sieve, 48 parts of Beta molecular sieve, 48 parts of 13X molecular sieve, 56 parts of Y-type molecular sieve, 45 parts of silicon, aluminum 15 copies;

[0032] Its preparation method comprises the following steps:

[0033] S1: Raw material preparation: ZSM-5 molecular sieve with MFI structure is selected as the main material of the adsorption material, and the silicon-aluminum ratio of the molecular sieve with a mass percentage of 80% is selected as ∞, and Beta molecular sieve, 13X molecular sieve and Y-type molecular sieve are added. The added volume ratio of Beta molecular sieve, 13X molecular sieve and Y-type molecular sieve is 3:3:2, and the ratio of molecular sieve is controlled by mass percentage, and the mass percentage of added components accounts for 50% of the tota...

Embodiment 3

[0038] refer to figure 1 , the present invention proposes a hydrophobic high-efficiency VOC molecular sieve adsorbent, including the following raw materials in parts by weight: 100 parts of ZSM-5 molecular sieve, 50 parts of Beta molecular sieve, 50 parts of 13X molecular sieve, 60 parts of Y-type molecular sieve, 50 parts of silicon, aluminum 20 copies;

[0039] Its preparation method comprises the following steps:

[0040] S1: Raw material preparation: ZSM-5 molecular sieve with MFI structure is selected as the main material of the adsorption material, and the silicon-alumina ratio of the molecular sieve with a mass percentage of 60% is selected as 55. In order to improve the hydrophobicity of the adsorbent, the silicon-aluminum ratio ∞ is preferred Pure silicon molecular sieves, and add Beta molecular sieves, 13X molecular sieves and Y-type molecular sieves, wherein the addition volume ratio of the Beta molecular sieves, 13X molecular sieves and Y-type molecular sieves is ...

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

No PUM Login to view more

Abstract

The invention relates to the technical field of adsorbents and preparation thereof, in particular to a hydrophobic efficient VOC (volatile organic compound) molecular sieve adsorbent and a preparation method thereof, and provides the following scheme aiming at the problems that an existing adsorbent and a preparation technology thereof still have low regeneration efficiency and the adsorption capacity is obviously reduced after the adsorbent is repeatedly used for multiple times. The preparation method of the hydrophobic high-efficiency VOC molecular sieve adsorbent comprises the following steps: S1, raw material preparation, S2, mixing and stirring, and S3, roasting and desorption, and aims to prepare the hydrophobic high-efficiency VOC molecular sieve adsorbent by taking a ZSM-5 molecular sieve as a base material, adopting a physical mixing mode, adding molecular sieves of other models, regulating the silica-alumina ratio of the molecular sieves and the like. The high-efficiency VOC adsorbent is obtained, the adsorbability to benzene series is improved, the adsorbability to water is reduced, the adsorbent is very suitable for removing industrial organic waste gas, meanwhile, low-temperature desorption is adopted, the regeneration efficiency of the adsorbent is high, and the adsorption is not obviously reduced after the adsorbent is repeatedly used for multiple times.

Description

technical field [0001] The invention relates to the technical field of adsorbents and their preparation, in particular to a hydrophobic high-efficiency VOC molecular sieve adsorbent and a preparation method. Background technique [0002] Adsorbents generally have the following characteristics: large specific surface, suitable pore structure and surface structure; strong adsorption capacity for adsorbate; generally do not chemically react with adsorbate and medium; easy to manufacture and easy to regenerate; excellent Adsorptive and mechanical properties. Adsorbents can be classified according to pore size, particle shape, chemical composition, surface polarity, etc., such as coarse-pore and fine-pore adsorbents, powdery, granular, strip-shaped adsorbents, carbonaceous and oxide adsorbents, polar and non-polar polar adsorbents, etc. Commonly used adsorbents include various activated carbon adsorbents based on carbonaceous materials and metal and non-metal oxide adsorbents (...

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): B01J20/16B01J20/30B01D53/02
CPCB01J20/16B01D53/02B01D2257/708B01D2259/40088
Inventor 刘建军边义军沈文广贾奇
Owner JIANGXI BAOAN NEW MATERIAL TECH
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