- 作者: 楊思明 ; 吳孝宗 ; 林秀雄
- 作者服務機構: 中央大學化學工程系
- 中文摘要: Metal substituted aluminum phosphate molecular sieves,, MeAPO-5 (Me = Co, Mn, Fe(II), Fe(III), and Mg) were synthesized and characterized with X-ray diffraction and scanning electron microscopy. The acidity was determined by temperature programmed desorption of ammonia. Desorption peaks at around 200.degree.C were observed for all the MeAPO samples studied. Additional desorption peaks at around 300.degree.C were found in MnAPO-5, CoAPO-5, and MAPO-5. MnAPO-5, CoAPO-5, and MAPO-5 also show good activities toward the cracking reaction of cumene at 350.degree.C, while Fe(II)APO-5 and Fe(III)APO-5 show some activity at 500.degree.C. The order of the cracking activity correlates with the presence of strong acidic sites in MnAPO-5, CoAPO-5 , and MAPO-5 as indicated by the TPD of ammonia.
- 英文摘要: --
- 中文關鍵字: Acidity; Cracking; Tpd; Meapo-5; Molecular Sieve; Aluminum Phosphate; Temperature Programmed Desorption
- 英文關鍵字: 酸度;裂化;程溫脫附;MeAPO-5;分子篩;磷酸鋁