Synthesis of ZSM-type Zeolites from Biowaste Gasification Ashes

KUEN-SONG LIN, H. PAUL WANG, NI-BIN CHANG, C. J. G. JOU, M. C. HSIAO
2003 Energy sources  
In Taiwan, over 800 thousand tons per year (TPY) of biowastes such as sugar cane bagasse, sugar cane leaf, rice straw, and corn leaf are produced. These biomasses are the major wastes of farms and are abundantly available. However, these biowastes cause disposal and landfill problems. The main component of these biowaste ashes is SiO 2 . High crystallinity (99% + ) zeolites ZSM-5 and ZSM-48 synthesized from the reaction mixtures containing an amorphous silica source from ashes of these
more » ... ' gasification were investigated. The Si/Al ratios of synthetic zeolite products 565 566 K.-S. Lin et al. were determined by atomic adsorption, X-ray fluorescence (XRF), and induced couple plasma/mass spectroscopies (ICP/MS). X-ray powder diffraction (XRD) and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDX) data indicate ZSM-5 or ZSM-48 with a high crystallinity can be obtained at a 48 h crystallization time in a high pressure (15 atm) autoclave at 433 K.
doi:10.1080/00908310390195633 fatcat:owf2or7nargnnpavpmzvaycbqi