CATEGORY: ZEOLITES
Ceramics International, Volume 38, Issue 1,
January 2012, Pages 333–340
The growth of SAPO 34 membrane layer on support
surface for gas permeation application
Jugal K. Das, Nandini Das, Soumendra N. Roy,
Sibdas Bandyopadhyay
Ceramic Membrane Division, Central Glass & Ceramic Research Institute,
CSIR, 196, Raja SC Mullick Road, Jadavpur, Kolkata 700 032, India
Abstract
Researchers studied the formation stage of SAPO
34 zeolite membrane on a tubular mullite support. They employed XRD, FESEM, IR
and EDAX analysis techniques to explain the changes in crystallization stages
as well as formation of membrane on tubular clay–alumina support with time.
Study results support the notion that
crystallization of SAPO 34 starts from initial gel, proceeding through cluster
formation and accumulation followed by segregation and crystallization process.
The study also showed the gradual incorporation of Si into AlPO4 phase and form
cubical CHA phase after 120 h of synthesis time.
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