Adsorption of MTBE on nano zeolite composites of selective supports

✍ Scribed by Jia Lu; Fang Xu; Weimin Cai

• Book ID: 104055551
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 680 KB
• Volume: 108
• Category: Article
• ISSN: 1387-1811
• DOI: 10.1016/j.micromeso.2007.03.025

✦ Synopsis

The selected zeolite composites silicalite-1/fly ash cenosphere (S/FAC) and silicalite-1/diatomite (S/D) are successfully applied for effective removal of methyl tert-butyl ether (MTBE) from water system through batch adsorption process. Adsorption isotherms of zeolite composites demonstrated that the Langmuir model provided a good fit throughout the concentration rang (from 100 lg l À1 to 100 mg l À1 ). S/FAC had a higher maximum adsorption capacity (q max = 92 551 lg g À1 ) than S/D (q max = 48 465 lg g À1 ), due to the higher amount of silicalite-1 coated on its outer surface (21%) than that on S/D (12%). Other factors that associated with the practical application of zeolite composites were also discussed. Synthesis conditions of S/FAC are relatively mild and energy-saving, while S/D is more economical when considering the cost of the expensive organic template during the preparation process.