添加剂在强化催化裂化中的应用(Ⅰ)——不同复合表面活性剂对活化状态的影响  

The Applying of Surfactants on the Intensified FCC(Ⅰ) ——The Effects of Different Compound Surfactants on Active State

作　　者：龚望欣[1] 曹祖宾 赵德智[1] 卫一龙[2] 尚亚卓[1] 

机构地区：[1]抚顺石油学院石化分院,辽宁抚顺113001 [2]华东理工大学化学系,上海200237

出　　处：《抚顺石油学院学报》2001年第1期1-4,11,共5页Journal of Fushun Petroleum Institute

基　　金：中石化总公司资助课题! (合同号 :1 950 3 6)

摘　　要：应用石油分散体系理论 ,研究了加入适量稀释剂和 3种不同HLB值复合表面活性剂的大庆蜡油掺 2 6%辽河渣油试样的凝点、折射率、电导率变化情况。结果表明 :稀释剂和 1 #～ 3 #表面活性剂有活化作用。当试样加入 1 %稀释剂和 1‰的 3 #表面活性剂时 ,试样的凝点、折射率、电导率最小 ,即体系处于最佳活化状态。以上述试样作为催化裂化的原料 ,在反应温度 50 0℃ ,进料量为 1 3 .5～ 1 4 .5g ,剂油比为 6,空速为 2 0h- 1,在常压的条件下 ,用改造后的小型固定流化床催化裂化装置进行工艺实验 ,测定了不同催化剂在相同操作条件下的产品收率。结果表明 :试样中加入适量的稀释剂和复合表面活性剂可调整石油分散体系的活化状态 ,可使催化裂化反应的干气产率降低 2 .5%～ 3 .0 % ,焦炭降低 1 .5%～ 2 .5%。液化气收率提高 2 .5%～ 3 .5% ,汽油收率提高 2 .5%～ 3 .5% ,柴油收率降低 0 .3 %～ 1 .0 %In this article, petroleum disperse system is applied to research the changeable situation of solidifying point, refractive index and conductance of the samples when a certain amount of thinner and three kinds of compound surfactants with different HLB values are added into the samples of Daqing crude mixes with 26% of Liaohe residue. The results indicate that number one, number two and number three surfactant have the active effect on the system. When the quantity of the thinner and the compound surfactants are 1%and 1‰ respectively, the solidifying point, refractive index and conductance of the sample are the minimum, that is, the system is just in the active state. Then the sample as the feedstock was put into catalytic cracking react operator of reconstructed mini fluid fixed bed when temperature is 500 ℃, feedstock is 13.5～14.5 g, catalyst/oil ratio is 6, LHSV is 20 h -1 , reaction pressure is normal. The intensified functions have been determined by measuring the yield of products with different catalyst under various operation conditions. The results show that a certain amount of the thinner and the compound surfactants can change the dispersion degree of the petroleum disperse system. The results of FCC indicate that dry gas decrease 2.5% to 3.5%, coke yields decrease 1.5% to 2.5%, LPG yield increase 2.5% to 3.5%, gasoline yield increase 2.5% to 3.5%, diesel oil decrease 0.3% to 1.0% in the active state.

关 键 词：炼油 表面活性剂 催化裂化 石油分散体系 活化状态 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]