甲基萘烷基化催化剂积炭的烧炭研究  

STUDY ON BURNING OF COKE DEPOSITED ON THE CATALYST FOR ALKYLATION OF METHYLNAPHTHALENE AND METHANOL BY THERMO-GRAVIMETRY

作　　者：白雪峰[1] 李琪[2] 刘宁生[3] 胡浩权[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116012 [2]哈尔滨工程大学化工学院,黑龙江哈尔滨150001 [3]黑龙江省石油化学研究院,黑龙江哈尔滨150040

出　　处：《燃料化学学报》2004年第2期249-252,共4页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(20276011;20376012)~~

摘　　要：The alkylation of methylnaphthalene and methanol was carried out on HZSM-5 zeolite catalyst. The characteristics of coke deposited on the catalysts under the atmospheric pressure or supercritical fluid condition were found out and coke-burning reaction apparent activation energies of the used catalysts were calculated by using the thermo gravimetric analysis technique. The results showed that compared to the catalyst used at the atmospheric pressure, coke deposition was greatly depressed and life of catalysts increased 10 times under the supercritical fluid reaction condition. The coke-burning reaction of the used catalysts mainly happened at temperature range of 420?℃ to 580?℃. The longer reaction time led to higher peak temperature of weight loss and to greater coke-burning reaction apparent activationenergies of the used catalysts.The alkylation of methylnaphthalene and methanol was carried out on HZSM-5 zeolite catalyst. The characteristics of coke deposited on the catalysts under the atmospheric pressure or supercritical fluid condition were found out and coke-burning reaction apparent activation energies of the used catalysts were calculated by using the thermo gravimetric analysis technique. The results showed that compared to the catalyst used at the atmospheric pressure, coke deposition was greatly depressed and life of catalysts increased 10 times under the supercritical fluid reaction condition. The coke-burning reaction of the used catalysts mainly happened at temperature range of 420?℃ to 580?℃. The longer reaction time led to higher peak temperature of weight loss and to greater coke-burning reaction apparent activationenergies of the used catalysts.

关 键 词：甲基萘 烷基化 烧炭 HZSM-5 超临界 

分 类 号：O643.36[理学—物理化学]