NKF-6（β）分子筛（Zeolite）

NKF-6，Beta（β）分子筛是三维十二元环孔结构的微孔高硅沸石，具有两个四元环和四个五元环的双六元环单位晶穴结构；孔径尺寸较大，介于ZSM-5型分子筛与Y型分子筛之间，主孔道直径0.56-0.75nm；硅铝比高，热稳性好。β分子筛只有孔道没有笼，因此可以进行阳离子全部交换。β分子筛对环已烷、正已烷，水的吸附量都较大，均在14%以上，这是β沸石一个特殊的性质。β分子筛的酸性及合适的孔体积能够产生异构化作用，并促进碳正离子C-C链转移而产生支链或成环，这可大大提高辛烷值。

在合成沸石-Beta的过程中，南开大学催化剂厂在二氧化硅和氧化铝的酸液中做了大量工作，以减少模板的用量。

NKC生产的NKF-β沸石在国内和国际市场上获得了很高的评价，具有非常优秀的质量和价格优势。

相对结晶度不低于95%；SiO2/AL2O3从20到100；正己烷的吸附量不低于15%。

主要用途：

1、β分子筛对石油加氢脱蜡降凝十分有利；β分子筛的孔道特点使其在裂解反应中对链状烃断裂有较强的选择性，在石油烃的裂解过程中可获得高碳数低凝点的裂解产物，因此β分子筛做为以石油烃为原料的炼油催化剂有很好的工业应用前景。它所产生的柴油凝点降低很多，是一种新型的生产低凝点柴油高中油型加氢裂化催化剂；

2、改性的β分子筛加入FCC催化剂中可降低催化裂化的烯烃含量，同时又能适当提高辛烷值，中熘分油（柴油）降凝等；
3、对于甲苯、三甲苯和C9等歧化反应及转烷基反应，β分子筛具有稳定性和高选择性；

4、β分子筛用于丙烯烷基化、乙烯烷基化生成异丙苯和乙苯，已在工业上应用；

5、在脱氨脱水等反应中具有很好的活性和选择性，我公司利用β分子筛成功开发了脱氨脱水催化剂，并已投产；

6、β分子筛同USY分子筛的联合使用可以提高汽油的辛烷值；

7、β分子筛在酚的对位烷基化反应中具有独特的选择性和良好的催化活性。

8、NKF-6分子筛可广泛用于汽车尾气排放控制、工业废气净化，以及挥发性有机化合物(VOC)、NOx 和 N2O 的减排。

9、NKF-6分子筛还适合吸附用途，例如用于除臭和置换活性炭。

NKF-6 (β) zeolite 数据

NKF-6 (β) zeolite SEM

NKF-6（β)（Beta Zeolite）

Beta (β)  Zeolite is a three-dimensional 12-membered ring pore structure of microporous high-silica zeolite, with two four-membered rings and four five-membered rings of double-hexa-ring unit crystal cavity structure; the pore size is large, between the ZSM-5 type molecular sieve and the Y-type molecular sieve, the main pore diameter is 0.56-0.75nm; the silicon-aluminum ratio is high, and the thermal stability is high Okay. β molecular sieve has only pores and no cages, so all cation exchanges can be carried out. β molecular sieve on cyclohexane, n-hexane, water adsorption is larger, all above 14%, which is a special property of zeolite β. Β the acidity of the molecular sieve and the suitable pore volume can produce isomerization, and promote the transfer of carbon positive ion C-C chains to produce branched chains or rings, which can greatly improve the octane number. 

In the process of synthesizing zeolite-Beta, the Nankai University Catalyst Plant has done a lot of work in the acid solution of silica and alumina to reduce the amount of template. 

NKF-β zeolite produced by our factory has received high praise in the domestic and international markets, and has a very excellent quality and price advantage. 

The relative crystallinity is not less than 95%, SiO2/AL2O3 is from 20 to 100, and the adsorption amount of epoxane is not less than 15%.

Main uses:

1, β molecular sieves are very beneficial to petroleum hydrodewaxing and condensation reduction. The pore characteristics of the β molecular sieve make it have strong selectivity for chain hydrocarbon fracture in the cracking reaction, and it is possible to obtain cracking products with high carbon number and low freezing point in the cracking process of petroleum hydrocarbons, so β molecular sieve as a refining catalyst with petroleum hydrocarbons as raw material has a good industrial application prospect. 

It produces a lot lower diesel freezing point, is a new type of production of low freezing point diesel high oil type hydrocracking catalyst;

2, Modified β molecular sieve added to the FCC catalyst can reduce the content of catalytic cracking olefins, while at the same time can appropriately increase the octane number, medium boiling oil (diesel) condensation reduction, etc.

3, For disproportionation reactions such as toluene, xylene and C9 and transalkyl reactions, β molecular sieve has stability and high selectivity

4, β molecular sieves are used for propenylation and vinylation to generate cumene and ethylbenzene, which have been used in industry.

5, In the deamination and dehydration and other reactions have good activity and selectivity, our company using β molecular sieve successfully developed the deamination dehydration catalyst, and has been put into production;

6, The combination of β molecular sieve and USY molecular sieve can improve the octane number of gasoline;

7, β molecular sieve has unique selectivity and good catalytic activity in the para-alkylation of phenols. 

8. NKF-6 molecular sieve can be widely used in automobile exhaust emission control, industrial exhaust gas purification, and volatile organic compound (VOC), NOx and N2O emission reduction. 

9, NKF-6 molecular sieve is also suitable for adsorption purposes, such as for deodorization and replacement of activated carbon.

运输：非危险品，但运输过程中要避免潮湿，保持干燥、密封。
Transportation：Non-dangerous goods, in transportation process avoid wet. Keep dry and airproof.
储存方法：在干燥、透风处贮存，不得露天存放。
Storage Method：Deposit in dry place and vent, not in the open air.
 

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