【摘要】 在微反 色谱联用装置上 ,利用不同活性的REHY催化剂 ,将含噻吩、 3 甲基噻吩、 2 ,5 二甲基噻吩的直馏汽油进行了催化裂化反应。结果表明 ,当温度在 4 0 0～ 5 0 0℃ ,剂 /油比在 0 5～ 6 7的范围内 ,反应时间为0 2 3s左右时 ,微反活性较高的裂化催化剂对噻吩类化合物有显著的转化能力。产物主要为硫化氢和低分子硫醇以及少量的重组分。其中 2 ,5 二甲基噻吩的转化率最高。更多还原

【Abstract】 By using a microreactor-GC on-stream apparatus,under the conditions of the temperature from 400?℃to 500?℃,the catalyst/oil mass ratio from 0.5 to 67 and the reaction time about 0.23?s,the straight-run gasoline containing thiophene,3-methylthiophene and 2,5-dimethylthiophene was cracked catalytically by the REHY catalysts of different MAT activity indices.The result revealed that the catalyst with MAT index higher than 68 showed notable ability for the conversion of thiophene,3-methylthiophene and 2,5-dimethylthiphene.The main products of the three thiophenes were hydrogen sulfide and low molecular-mass mercaptans,and also a little amount of heavy molecular-mass products.The conversion of 2,5-dimethylthiophene was the highest among the three thiophenes.更多还原