CAJ | 학술논문

在固定床反应器条件下对焦油组分（以1-甲基萘作为焦油的模型化合物）进行了催化裂解研究，选择镍基催化剂、5A分子筛、CaO催化剂、矾土和石英砂等5种催化剂为焦油组分裂解催化剂。研究表明此5种催化剂对1-甲基萘的裂解都具有催化活性，10h反应时间内，5A分子筛和Ni基催化剂对1-甲基萘的转化率为100%，CaO催化剂、矾土和石英砂对1-甲基萘的转化率则较低。同时研究了温度对Ni-3催化剂和5A分子筛的转化率的影响。为了进行比较也测试了Ni-3催化剂对苯的转化率，总包一级反应线性回归出催化剂在250～500℃的裂解活化能为22.17kJ/mol。
재고정상반응기조건하대초유조분（이1-갑기내작위초유적모형화합물）진행료최화렬해연구，선택얼기최화제、5A분자사、CaO최화제、반토화석영사등5충최화제위초유조분렬해최화제。연구표명차5충최화제대1-갑기내적렬해도구유최화활성，10h반응시간내，5A분자사화Ni기최화제대1-갑기내적전화솔위100%，CaO최화제、반토화석영사대1-갑기내적전화솔칙교저。동시연구료온도대Ni-3최화제화5A분자사적전화솔적영향。위료진행비교야측시료Ni-3최화제대분적전화솔，총포일급반응선성회귀출최화제재250～500℃적렬해활화능위22.17kJ/mol。
The tar decomposition activities of five catalysts including Nibased catalyst, alumina, 5A molecular sieve, CaO catalyst, quartz sand catalysts are compared in a fixed bed catalytic reactor. 1-methylnaphthalene is used as a tar model compound. All these catalysts show to be active and useful for tar cracking reactions, deactivations of Ni based and 5A molecular sieve catalyst are not found within 10 h reaction time with space velocity of 3 000 h-1 at temperature of 550 ℃. Especially, with increasing temperature, the conversion of 1-methylnaphthalene is improved. At same time, Ni-3 catalyst is found to be effective for benzene conversion at 550 ℃ and 650 ℃. Using a simple first-order kinetic model for the overall reaction, an apparent activation energies (22.17 kJ/mol for Ni-3 catalyst) is obtained at 250～500 ℃.