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 ...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 0.9g and raw material 10g,the yield of ETBE is 59.55% and the selectivity is 90.2%.展开更多
文摘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 0.9g and raw material 10g,the yield of ETBE is 59.55% and the selectivity is 90.2%.
基金Supported by National Science Foundation for Distinguished Young Scholars of China(51025517)National Defense Basic Scientific Research Project(A 1320110011)National Nature Science Foundation of China(51305431)
基金Supported by National Science Foundation for Distinguished Young Scholars of China(51025517)National Defense Basic Scientific Research Project(A1320110011)