Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
54638 | Catalysis Today | 2013 | 8 Pages |
•SAPO-34 has been synthesized by using a biphasic medium in the presence of surfactants.•The concentration and environment of silicon in SAPO-34 has been controlled.•Catalysts with enhanced activity in the MTO process have been prepared.
SAPO-34 molecular sieves have been synthesized using two-liquid phase system (water/hexanol) in presence of hexadecyltrimethylammonium bromide (CTAB) or hexadecylamine (HA) as surfactant agents. This synthesis method causes higher silicon incorporation as well as greater diversification of the silicon distribution in the SAPO-34 network and decreases catalyst deactivation in the methanol-to-olefins process.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (161 K)Download as PowerPoint slide