催化裂化汽油中间馏分芳构化降烯烃研究  

Study on Aromatization of FCC Gasoline Middle Fraction over Phosphor Modified Zn/HZSM-5 Catalyst

作　　者：魏民[1] 崔国静[1] 朱静[1] 王海彦[1] 马骏[1] 白英芝[1] 

机构地区：[1]辽宁石油化工大学石油化工学院

出　　处：《石油与天然气化工》2005年第4期268-270,共3页Chemical engineering of oil & gas

摘　　要：采用ZnP/HZSM-5催化剂,以75℃～120℃催化裂化汽油馏分为原料,在实验室连续固定床反应装置上进行了芳构化反应,考察了工艺条件对芳构化反应的影响和降低烯烃的效果。研究结果表明,在反应温度430℃、反应压力0.1MPa、液时空速(LHSV)1h-1的条件下,液体产品中烯烃含量、芳烃含量及异构烷烃含量分别达到3.28%、74.09%和20.59%。ZnP/HZSM-5催化剂具有较高的活性稳定性。反应产物是优良的清洁汽油调和组分。调合后,汽油的烯烃含量下降16.17个百分点,汽油的研究法辛烷值提高0.9单位。The effect of reaction conditions on the aromatization of catalytic cracking gasoline(75℃~120℃ fraction) on ZnP/HZSM-5 catalyst was investigated in a continuous fixed reactor. The experimental results showed that under the optimal reaction conditions(temperature 430℃, liquid hour space velocity 1h^-1, pressure 0.1MPa), the conversion of olefin, conversion of alkane, olefin content, aromatic content and iso-paraffin content were up to 97.17%, 67.91%, 3.28%, 74.09% and 20.59% respectively. Zn-P/HZSM-5 catalyst has higher activity stability and aromatic selectivity than Zn/HZSM-5. The aromatization product was a excellent cleaned gasoline blending component. A blending gasoline was obtained, the olefin content decreased from 42.17% to 26.00%, and RON increased from 91.5 to 92.4.

关 键 词：磷改性 Zn/HZSM-5 催化裂化 汽油 烯烃 芳构化 

分 类 号：TE624[石油与天然气工程—油气加工工程]