反应温度对渣油热裂化和沸腾床加氢性能的影响  

Impact of reaction temperature on thermal-cracking performance and hydrotreating performance of residue Oil in an ebullated-bed

作　　者：王喜彬[1] 贾丽[1] 

机构地区：[1]中国石油化工股份有限公司抚顺石油化工研究院,辽宁省抚顺市113001

出　　处：《炼油技术与工程》2014年第6期34-37,共4页Petroleum Refinery Engineering

摘　　要：以伊朗原油经常减压蒸馏后得到的500℃以上的减压渣油为原料,在连续装置上进行临氢热裂化(反应器中装填惰性瓷环)和沸腾床加氢(反应器装填抚顺石油化工研究院开发并工业放大的FEM-10催化剂)试验,在反应压力15 MPa,氢油体积比900∶1,反应空速1.0 h-1的条件下,考察了反应温度对渣油热裂化和沸腾床加氢性能的影响。试验结果表明:渣油原料经临氢热裂化和沸腾床加氢反应后,生成油性质有显著区别,热裂化反应生成油金属、硫及残炭含量明显高于相同条件下的加氢反应结果,高温热裂化生成油性质极不稳定,有焦炭生成;相同反应温度下的原料500℃以上组分的热裂化转化率要明显高于加氢转化率。根据生成油金属钒脱除率可以判断沸腾床反应器的催化剂流化状态,如果生成油的金属钒脱除率高于80%,则反应器中的催化剂处于良好的沸腾状态;而生成油金属钒脱除率低于50%,则反应器中的催化剂未处于良好的沸腾状态。The impact of reaction temperature on thermal-cracking performance （The reactor was loaded with ceramic ring catalysts） and hydrotreating performance in an ebullated-bed （The reactor was loaded with FEM-10 catalysts developed by Fushun Research Institute of Petroleum and Petrochemicals） was mainly investigated under the conditions of reaction pressure 15 MPa,H/Oil 900∶ 1,LHSV 1.0 h^-1,using Iranian vacuum residue oil of over 500 ℃ fraction as feedstock.The results showed that：the properties of product oils from hydrotreating test and thermal-cracking test were obviously different.The metals content,sulfur content and carbon residue content of thermal-cracked product were higher than those of hydrotreated product under the same conditions.The product oil from thermal-cracking reaction had suspended coke and was in an unstable state.The conversion of over 500 ℃ fraction via thermal-cracking was higher than that via hydrotreating under the same conditions.The catalyst fluidization in an ebullated-bed reactor could be determined by vanadium removal rate of product oil.If vanadium removal rate of product was over 80%,the catalyst was in a good ebullating state.The catalyst was in a bad ebullating state if vanadium removal rate of product oil was below 50%.

关 键 词：渣油 加氢 沸腾床 热裂化 反应温度 

分 类 号：TE624[石油与天然气工程—油气加工工程]