Acidity and catalytic activity of SAPO-5 and AlPO-5 molecular sieves

Acidity and catalytic activity of SAPO-5 and AlPO-5 molecular sieves Full article

Journal

Zeolites
ISSN: 0144-2449 , E-ISSN: 1873-3115

Output data

Year: 1988, Volume: 8, Number: 2, Pages: 137-141 Pages count : 5 DOI: 10.1016/s0144-2449(88)80080-0

Authors

Hedge S.G. ¹ , Ratnasamy P. ¹ , Kustov L.M. ² , Kazansky V.B. ²

Affiliations

1	National Chemical Laboratory, Pune - 411008, India.
2	Zelinsky Institute of Organic Chemistry, Moscow, USSR

The acidic sites of aluminophosphate (AlPO-5) and silicoaluminophosphate (SAPO-5) molecular sieves have been investigated using diffuse reflectance i.r. spectroscopy, temperature-programmed desorption (t.p.d.) of NH3, and catalytic activity in the cracking of cumene and oligomerization of ethylene. The results are compared with those obtained for HZSM-5 and HY zeolites. It is concluded that these zeolites can be arranged in the following decreasing sequence of Brönsted acid site strength: HZSM-5 > SAPO-5 > HY ≫ AlPO-5.

Hedge S.G. , Ratnasamy P. , Kustov L.M. , Kazansky V.B.
Acidity and catalytic activity of SAPO-5 and AlPO-5 molecular sieves
Zeolites. 1988. V.8. N2. P.137-141. DOI: 10.1016/s0144-2449(88)80080-0 OpenAlex

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