Application in the field of oil refining industry

Diesel hydrogenation and pour point reduction, lubricating oil catalytic dewaxing, gasoline octane recovery, catalytic cracking of gasoline to reduce olefins, aromatics shape-selective conversion and methanol shape-selective conversion, etc. Famous processes based on ZSM-5 molecular sieve include: Mobil middle distillate dewaxing process (MDDW), lubricating oil dewaxing process (MLDW), M-reforming process, Mobil-Badger synthesis of ethylbenzene process, which is composed of light hydrocarbons Cylar process for synthetic aromatics (LPGBTX), xylene isomerization process (MVPI), toluene disproportionation process (MTDP), methanol-to-gasoline process (MTG), etc.

Application in the field of fine chemicals

1,4-dioxane is synthesized from diethylene glycol, MTBE (methyl tert-butyl ether) is synthesized from isobutylene and methanol, 3,5-lutidine is synthesized, etc.

Application in the field of environmental protection

The application of ZSM-5 in the environmental protection industry is mainly reflected in its strong adsorption capacity and good effect on VOCs. It can be used to remove thiophene, phenol, trichlorethylene, NOx into N2, formaldehyde, H2S, etc.

Application in chemical anti-corrosion

Most of the liquids flowing through chemical equipment and pipelines are corrosive and can easily corrode pipelines and equipment, greatly reducing their performance and the safety of the production process. ZSM-5 molecular sieve has corrosion resistance to corrosive liquid acids except hydrofluoric acid. The corrosion resistance exhibited by the ZSM-5 molecular sieve coating is attributed to the formation of a dense, continuous zeolite film with a thickness of several nanometers on the metal surface. ZSM-5 zeolite membrane can effectively resist the corrosion of hydrochloric acid, nitric acid, phosphoric acid and sulfuric acid.

Application in electrochemistry

Because all-solid-state lithium polymer batteries (LPBS) have the characteristics of high energy density, good safety, and portability, it may be one of the most used chemical power sources in the future and has good application prospects.
The addition of ZSM-5 can effectively increase the conductivity of microporous membranes. The comprehensive performance of the electrolyte prepared by ZSM-5 is much higher than that of the electrolyte prepared by aluminum oxide. This method has a simple process and is particularly suitable for industrialization. ZSM-5 has potential application prospects in the new field of alcohol fuel cells.

Features of ZSM-5 molecular sieve

1. High product selectivity
ZSM-5 molecular sieve has small crystal grains, short pores, low intra-crystal diffusion resistance, many exposed atoms, rich intercrystal gaps, and strong adsorption capacity. It is especially beneficial to the activation of macromolecules and helps to improve the selection of macromolecules. sex.
2. High catalytic activity
There are many unsaturated bonds on the outer surface of ZSM-5 molecular sieve, which is easy to adsorb other molecules, so it shows high catalytic performance. For reactions limited by diffusion and cracking reactions of macromolecules whose molecular diameter is larger than the pore size of the molecular sieve, using our company's ZSM-5 molecular sieve will have better activity than ordinary ZSM-5 molecular sieve.
3. Long catalyst life
ZSM-5 molecular sieve has strong resistance to carbon deposition and can extend the service life of the catalyst. The product can quickly diffuse out of the pores of the small-grained molecular sieve, reducing the reaction depth and slowing down the deactivation of carbon deposits. The smaller the ZSM-5 molecular sieve grains, the stronger its ability to resist carbon deposition and the longer the catalyst life.
4. Higher dispersion and loading capacity of loaded metal components
The effective loading and dispersion of metal components on molecular sieves significantly affect the performance of supported catalysts. The content of metal components has a certain limit. If it exceeds the limit value, the metal components will cover the surface of the molecular sieve in the form of aggregates or block the pores, thereby reducing the catalyst activity and selectivity. Dalian Haixin Chemical ZSM-5 molecular sieve has a larger surface area and more pores. It is easier for metal components to enter the molecular sieve pores, improving its dispersion and effective content, thus increasing the catalytic activity and maintaining a longer service life. 

Application of ZSM-5 under different silicon to aluminum ratios