HPWA-SBA-15催化合成ETBE  

Synthesis of ETBE over mesoporous zeolite SBA-15 functionalized with HPWA group

作　　者：焦宏宇[1] 杨丽娜[1] 沈健[1] 亓玉台[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《燃料化学学报》2006年第3期381-384,共4页Journal of Fuel Chemistry and Technology

摘　　要：TEM,FTIR and XRD techniques are used to investigate the structure of HPWA-SBA-15.The results show that pores of HPWA-SBA-15 have regular two-dimensional hexagonal structure,and HPWA disperses well in the pore or pore wall of HPWA-SBA-15.NH3-TPD shows the HPWA-SBA-15 catalyst has acidic properties.ETBE is synthesized by the etherification reaction of alcohol and tert-butyl alcohol over several catalysts.Solid acid catalyst HPWA-SBA-15 is the appropriate catalyst which has the highest yield of ETBE than PW12/C and cation resin.The influences of reaction temperature,ratio of alcohol to tert-butyl alcohol are studied.At optimal operation condition, 30% HPWA on HPWA-SBA-15,reaction temperature 100℃,alcohol/tert-butyl alcohol molar ratio 2,the quality catalyst 0.9g and raw material 10g,the yield of ETBE is 59.55% and the selectivity is 90.2%.TEM, FTIR and XRD techniques are used to investigate the structure of HPWA-SBA-15. The results show that pores of HPWA-SBA-15 have regular two-dimensional hexagonal structure, and HPWA disperses well in the pore or pore wall of HPWA-SBA-15. NH3-TPD shows the HPWA-SBA-15 catalyst has acidic properties. ETBE is synthesized by the etherification reaction of alcohol and tert-butyl alcohol over several catalysts. Solid acid catalyst HPWA-SBA-15 is the appropriate catalyst which has the highest yield of ETBE than PW12/C and cation resin. The influences of reaction temperature, ratio of alcohol to tert-butyl alcohol are studied. At optimal operation condition, 30% HPWA on HPWA-SBA-15, reaction temperature 100℃, alcohol/tert-butyl alcohol molar ratio 2, the quality catalyst 0.9 g and raw material 10 g, the yield of ETBE is 59.55% and the selectivity is 90.2%.

关 键 词：乙基叔丁基醚(ETBE) 磷钨酸 SBA-15 

分 类 号：O643.32[理学—物理化学]