摘要
通过分析固定床渣油加氢装置降黏情况,结合工业数据和试验结果,得出同时适用于原料和加氢常压渣油运动黏度在温度分别为50、80、100℃下的经验转换式,考察了反应条件对产品黏度影响和不同位置催化剂床层降黏贡献。结果表明:保护剂+脱金属剂、脱硫剂和脱残炭剂单位体积黏度降幅依次为0.97%、0.86%、0.32%,其中保护剂和脱金属剂合计黏度降幅贡献达到54%;反应温度调整对加氢常压渣油黏度影响最大,反应温度每提高5℃,运动黏度降幅增加2.17百分点;生产低黏度船用燃料油调合组分或产品,催化剂级配应注重大分子转化,相对于常规催化剂级配来说,应提高保护剂和脱金属剂的装填比例;固定床渣油加氢工艺在流程上需增设减压分馏塔,能解决产品黏度超标问题,可直接生产低硫船用燃料油产品。
In recent years,the main product of the fixed-bed residue hydrogenation unit,hydrogenated atmospheric residue,is often used as a blending component of low sulfur marine residual fuel.The blending component needs to undergo viscosity reduction treatment.The conversion formulas of kinematic viscosity of feed and hydrogenation atmospheric residue at 50,80 and 100℃are obtained,by analyzing industrial data and experimental results.The influence of reaction conditions on product viscosity is explored.The decrease in volume viscosity of the protective agent and demetalization agent,desulfurizing agent,and carbon reduction catalyst is 0.97%,0.86%,and 0.32%,respectively,with the combined contribution of the protective agent and demetalization agent reached 54%.The adjustment of reaction temperature has the greatest impact on the viscosity of hydrogenated atmospheric residue,with a 2.17 percentage points increase in the decrease in kinematic viscosity for every 5℃increase in reaction temperature.To produce low viscosity marine fuel blending components or products,the loading ratio of protective agents and demetalization agents should be increased compared to conventional catalyst gradation.The fixed-bed residue hydrogenation process can directly produce low sulfur marine fuel products by adding a vacuum distillation tower.
作者
李旭贺
毛清国
金建辉
李洪广
刘铁斌
耿新国
袁胜华
Li Xuhe;Mao Qingguo;Jin Jianhui;Li Hongguang;Liu Tiebin;Geng Xinguo;Yuan Shenghua(SINOPEC(Dalian)Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian,Liaoning 116045;Liaoning Baolai Bioenergy Co.,Ltd.,Panjin,Liaoning 124119)
出处
《炼油技术与工程》
CAS
2024年第12期26-29,共4页
Petroleum Refinery Engineering
关键词
固定床
渣油加氢装置
低黏度
船用燃料
调合组分
加氢常压渣油
反应温度
液时体积空速
fixed-bed
residue hydrogenation unit
low viscosity
marine fuel
blending component
hydrogenation atmospheric residue
reaction temperature
liquid hourly space velocity
