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Microcrystal rotating wheel zeolite molecular sieve for efficiently removing VOCs and preparation method of microcrystal rotating wheel zeolite molecular sieve

A technology of runner zeolite and molecular sieve, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as adsorbent blockage, catalyst poisoning, and unsatisfactory thiophene removal, and achieve flexible reaction temperature and process advantages obvious effect

Pending Publication Date: 2021-12-17
江西省杰夫环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, the purpose of the present invention is to provide a method for preparing a high-efficiency microcrystalline molecular sieve catalyst for fine desulfurization, which solves the technical problems in the prior art that the removal of thiophene is not ideal, and it is easy to cause adsorbent blockage and catalyst poisoning.

Method used

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  • Microcrystal rotating wheel zeolite molecular sieve for efficiently removing VOCs and preparation method of microcrystal rotating wheel zeolite molecular sieve
  • Microcrystal rotating wheel zeolite molecular sieve for efficiently removing VOCs and preparation method of microcrystal rotating wheel zeolite molecular sieve
  • Microcrystal rotating wheel zeolite molecular sieve for efficiently removing VOCs and preparation method of microcrystal rotating wheel zeolite molecular sieve

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Embodiment 1

[0039] The microcrystalline zeolite runner molecular sieve of the present invention is composed of 30% of the microcrystalline material, 50% of the natural zeolite material, and 20% of the pottery clay material: the microcrystalline material is composed of silicon carbide, quartz powder, white crystal powder, etc., which belong to natural The raw material is one or more of natural zeolite, Ca zeolite, clinoptilolite and mordenite.

[0040] Pottery clay belongs to primary clay and secondary clay. Primary clay is a kind of natural kaolin, which is composed of montmorillonite and so on. It has good flexibility and high viscosity. Secondary clay is composed of quartz and feldspar, etc. It has good plasticity, and its roasting temperature is relatively low, which is almost the same as that of zeolite. However, the materials on the honeycomb runner are very complicated, otherwise the bonding is not good, and the possibility of cracking and falling off is easy to occur during the a...

Embodiment 2

[0050] The microcrystalline zeolite runner molecular sieve of the present invention comprises 25% of the microcrystalline material, 50% of the natural zeolite material and 25% of the pottery clay material. The natural microcrystalline material is composed of one or three kinds of silicon carbide, quartz powder and white crystal powder. Natural zeolite is composed of one or more of calcium zeolite, clinoptilolite and mordenite. The pottery clay is composed of one or several kinds of kaolin, montmorillonite, quartz soil and feldspar soil. Other auxiliary binders are composed of one or several kinds of silicon solution, sodium hydroxypropyl methylcellulose, and SG kale gum.

[0051] The above materials must be strictly controlled: first of all, the precise amount of materials, the proportion of auxiliary materials, and the amount of water to be added must be calculated. The quality and service life of molecular sieve depends entirely on the correct ratio. The quality of the ra...

Embodiment 3

[0062] The microcrystalline zeolite runner molecular sieve of the present invention comprises 30% of the microcrystalline material, 40% of the natural zeolite material and 30% of the pottery clay material. The natural microcrystalline material is composed of 40% of the silicon carbide component, 34% of the quartz powder material, and 20% of the white crystal powder material, and one or three types can also be selected. The natural zeolite is composed of 35% of calcium zeolite, 30% of clinoptilolite and 35% of mordenite, and one or three kinds can also be selected. The pottery clay is composed of 25% kaolin, 25% montmorillonite, 25% quartz soil and 25% feldspar soil, and one or three kinds can also be selected. Other auxiliary binders consist of one or more of 16% of silicon solution, 4.5% of hydroxypropyl methylcellulose sodium, and 3.0% of SG squash gum.

[0063] The microcrystalline zeolite runner molecular sieve of the present invention is very rigorous in the selection of...

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Abstract

The invention relates to a microcrystal rotating wheel zeolite molecular sieve for efficiently removing VOCs and a preparation method of the microcrystal rotating wheel zeolite molecular sieve, and belongs to the technical field of VOCs removal treatment. The microcrystal rotating wheel zeolite molecular sieve comprises, in percentage by mass, 25%-35% of a microcrystal material, 30%-50% of a natural zeolite material and 20%-30% of a mud making material. The molecular sieve comprises an adsorption zone, a regeneration zone and a cooling zone, and the technical problems that in the prior art, thiophene removal is not ideal, adsorbent blockage is easily caused, and catalyst poisoning is easily caused are solved.

Description

technical field [0001] The invention relates to the field of VOCs removal treatment, in particular to a microcrystalline runner zeolite molecular sieve for efficient removal of VOCs and a preparation method thereof. Background technique [0002] According to the requirements of the national VOCs emission standards: "Volatile Organic Compounds Unorganized Emission Control Standards" stipulates: for the comprehensive emission of air pollutants, the formulation of para-benzene, toluene, xylene, non-methane total hydrocarbons, acrylonitrile, acrolein, methanol, aniline emission limits for chlorobenzenes, chlorobenzenes, vinyl chloride, etc. If it is directly discharged into the atmosphere, it will not only cause damage to the ecological environment, but also cause extremely serious harm to human beings. Therefore, it is very important to pay attention to the loss of VOCs in the removal of VOCs exhaust gas. [0003] Using zeolite film as an adsorbent on the runner, or making ze...

Claims

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Application Information

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IPC IPC(8): B01D53/06B01J20/16B01J20/28B01J20/30
CPCB01D53/06B01D53/0454B01J20/165B01J20/28045B01D2257/708B01D2253/108B01D2259/4009B01D2257/7027Y02A50/20
Inventor 崔平黄德金李艳辉张合正
Owner 江西省杰夫环保科技有限公司
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