CAJ | 학술논문

采用离子交换法和浸渍法制备了x%Fe2O3/KX、y%CoO/KX和z%NiO/KX催化剂，通过ICP-AES、TG、Py-IR和TPD对其进行了表征，并考察了铁族元素氧化物Fe2O3、CoO和NiO改性KX对催化甲苯甲醇侧链烷基化反应性能的影响。结果表明，对于x%Fe2O3/KX催化剂，随着KX上Fe2O3负载量的逐渐增大，甲醇转化率逐渐提高，乙苯收率先升高后降低，苯乙烯收率逐渐降低；对于y%CoO/KX催化剂，随着KX上CoO负载量的逐渐增大，甲醇转化率明显提高，乙苯收率先升高后降低，苯乙烯收率急剧降低；对于z%NiO/KX催化剂，随着KX上NiO负载量的逐渐增大，甲醇转化率有微弱的降低，乙苯和苯乙烯收率均急剧降低，甲苯脱烷基产物苯的收率明显提高。
채용리자교환법화침지법제비료x%Fe2O3/KX、y%CoO/KX화z%NiO/KX최화제，통과ICP-AES、TG、Py-IR화TPD대기진행료표정，병고찰료철족원소양화물Fe2O3、CoO화NiO개성KX대최화갑분갑순측련완기화반응성능적영향。결과표명，대우x%Fe2O3/KX최화제，수착KX상Fe2O3부재량적축점증대，갑순전화솔축점제고，을분수솔선승고후강저，분을희수솔축점강저；대우y%CoO/KX최화제，수착KX상CoO부재량적축점증대，갑순전화솔명현제고，을분수솔선승고후강저，분을희수솔급극강저；대우z%NiO/KX최화제，수착KX상NiO부재량적축점증대，갑순전화솔유미약적강저，을분화분을희수솔균급극강저，갑분탈완기산물분적수솔명현제고。
The catalysts of x%Fe2O3/KX, y%CoO/KX and z%NiO/KX were prepared by ion exchanging and impregnating method, and characterized by ICP-AES, Py-IR and TPD methods. Their catalytic behaviors for side chain alkylation of toluene with methanol were investigated. For x%Fe2O3/KX, when the amount of Fe2O3 supported on KX increased, the conversion of methanol increased, the yield of ethylbenzene increased first and then decreased, and the yield of styrene decreased. For y%CoO/KX, when the amount of CoO supported on KX increased, the conversion of methanol increased rapidly, the yield of ethylbenzene increased first and then decreased, and the yield of styrene decreased rapidly. For z%NiO/KX, when the amount of NiO supported on KX increased, the conversion of methanol decreased slightly, the yields of ethylbenzene and styrene decreased rapidly, and the yield of xylene increased significantly.