| Customization: | Available |
|---|---|
| CAS No.: | 1318-02-1 |
| Formula: | (Sio2)X(Al2O3)Y |
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ZSM-5 Zeolite , zsm 5 molecular sieve for alkylation
Description:
ZSM-5 zeolite properties
Thermal stability
High thermal stability of ZSM-5 zeolite. This is caused by a skeleton in a stable five-membered ring structure and a high silica to alumina ratio. For example, the sample calcined at 850 ºC After 2 hours, the crystal structure unchanged. Even can withstand high temperature of 1100 ºC. So far, ZSM-5 zeolites are known to one of the highest qualitative hot temperature. Therefore, it is used in high-temperature process is particularly suitable. For example, use it as a hydrocarbon cracking catalyst, regeneration of the catalyst can withstand passage of time.
Acid resistance
ZSM-5 zeolite has good acid resistance, it is resistant to various acids except hydrofluoric acid.
Steam stability
Wang, IKai other studies have shown that when other zeolites by steam and hot water, and their general structure is destroyed, leading to irreversible deactivation. The Mobil company with ZSM-5 as the conversion of methanol (water is one of the major product) catalyst. This suggests that ZSM-5 to water vapor with good stability. 540 ºC lower partial pressure of 22mmHg steaming column and HY zeolite HZSM-5 after 24 hours, a crystallinity of HZSM-5 and about 70 percent of fresh catalyst, but under the same conditions, HY zeolite skeleton almost completely damage.
Hydrophobic
ZSM-5 having a high silica to alumina ratio, the smaller the surface charge density. The water molecule is polar, so you will not ZSM-5 is adsorbed. Although water molecules smaller than the diameter of n-hexane, but the amount of adsorption of n-hexane ZSM-5 is generally greater than water.
Easy to coke
ZSM-5 V-shaped aperture effective, pore size and bending, preventing a large condensate formation and accumulation. Meanwhile, ZSM-5 framework is no greater than the bore of the cavity (cage) exist, so limiting the formation of large molecules from the secondary condensation reactions. So that the possibility of ZSM-5 catalyst coke is reduced. ZSM-5 for an alkyl aromatics into the tunnel barrier is formed, and thus the reaction process it can not continue to react in smaller pores, the final condensation formed coke. ZSM-5 so much slower than the rate of coke deposition and Y-type mordenite, difference of almost two orders of magnitude. Capacity of ZSM-5 zeolite carbon content is higher.
Excellent shape-selective selectivity
Zeolite molecular sieve as catalyst, only smaller than the hole crystal molecules can catalyze the reaction out of control pore size crystalline zeolite suffering zeolite catalyst size and shape of reactant and product molecules showed great selectivity. Pore system of ZSM-5 zeolite having a 10-MR constituted medium size orifice diameter, it has a good shape-selective selectivity.
Specifications
Mole Ratio: 15-1000
Nominal Cation Form: Ammonium/Hydrogen
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JIULONG Products |
SiO2/Al2O3Mole Ratio | Nominal Cation Form | Na2O Weight % | Surface Area, m2/g |
| JL 01 | 25 | Sodium/Hydrogen | 0.05 | 340 |
| JL O2 | 30 | Sodium/Hydrogen | 0.05 | 340 |
| JL 03 | 50 | Sodium/Hydrogen | 0.05 | 340 |
| JL 04 | 80 | Sodium/Hydrogen | 0.05 | 340 |
| JL 05 | 280 | Sodium/Hydrogen | 0.05 | 340 |
1. We have over 10 years producing experience, adopt advanced production and inspection equipment,optimize production process, to guarantee and improve product quality.
2. Provide samples free of charge.
3. Factory price, no middleman increases costs.
4. Packaging can be customized according to customer requirements
5. We provide commercial invoice, packing list, shipping order, COA, health certificate and certificate of origin, etc. If your market has any special requirements, please let us know.
6. We can accept various payment methods, such as L / C, t / T, D / A, D / P, O / A, PayPal, Western Union,etc
7. Timely delivery. We have good cooperation with many professional freight forwarders. Once you confirm the order, we can send the products to you.
1) Can we print our logo on the product ?
Of course, we can do it. Just send us your logo design·
2) Do you accept small orders ?
Yes. If you are a small retailer or starting up business,We are definitely willing to grow up with you. And we are looking forward to co-work with you for a long term relationship.
3) How about the price? Can you make it cheaper ?
We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.
4) Do you offer free samples ? A 5Stars Review = A Free Sample
It's appreciated that you could write us positive reviews if you like our products and service, we will offer you some free samples on your next order.
5) Are you able to deliver on time?
Of course!we specialised in this line for many years,many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
6) What are your payment terms ? Any third party payment ?
We usually accept T/T, trade assurance, Western Union, L/C.
7) Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Zibo, China. (1.5H drive way from Jinan)
8) How Can I place an order?
You could just send us inquiry to any of our sales representatives to get detailed order information, and we will explain the detail process.
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