CAJ | 학술논문

采用固定床法考察了原料异丁烷中乙硫醇、甲醇、正丁烷和1-丁烯等杂质对Pt-Sn-K/Al2O3催化剂上异丁烷脱氢制异丁烯反应性能影响，反应产物使用气相色谱进行分析。实验结果表明，在异丁烷脱氢制异丁烯正常反应条件下，即温度580℃、压力0.1MPa、进料组成H2/i-C4H10（体积比）=2、总空速GHSV =2000h?1、GHSV(i-C4H10)=667h?1，乙硫醇、甲醇、正丁烷和1-丁烯对Pt-Sn-K/Al2O3催化剂的异丁烷转化率和异丁烯选择性均有较大的影响，且杂质含量越高，对催化剂的转化率和选择性影响越大。并对杂质造成催化剂失活的原因进行了分析。
채용고정상법고찰료원료이정완중을류순、갑순、정정완화1-정희등잡질대Pt-Sn-K/Al2O3최화제상이정완탈경제이정희반응성능영향，반응산물사용기상색보진행분석。실험결과표명，재이정완탈경제이정희정상반응조건하，즉온도580℃、압력0.1MPa、진료조성H2/i-C4H10（체적비）=2、총공속GHSV =2000h?1、GHSV(i-C4H10)=667h?1，을류순、갑순、정정완화1-정희대Pt-Sn-K/Al2O3최화제적이정완전화솔화이정희선택성균유교대적영향，차잡질함량월고，대최화제적전화솔화선택성영향월대。병대잡질조성최화제실활적원인진행료분석。
Effect of impurities,such as ethyl mercaptan,methyl alcohol,butane and 1-butylene,on the performance of Pt-Sn-K/Al2O3 catalyst in the reaction of isobutane dehydrogenation to isobutene was investigated on a fixed bed reactor,and the product was analyzed by gas chromatography. The results showed that ethyl mercaptan,methyl alcohol,butane and1-butylene all had great influence on the isobutane conversion and isobutene selectivity of Pt-Sn-K/Al2O3 catalyst under the reaction condition of isobutane dehydrogenation to isobutene,i.e. at the temperature of 580℃,pressure of 0.1MPa,feedstock of H2/i-C4H10(V)= 2,total space velocity GHSV= 2000h?1,GHSV(i-C4H10)= 667h?1; and the higher the impurities content was,the greater the influence was. Furthermore,how the impurities caused the deactivation of catalyst was analyzed.