催化裂化油浆悬浮床加氢裂化工艺优化
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摘要
以催化裂化油浆为原料,在高压釜中进行悬浮床加氢裂化实验模拟,考察了反应温度、催化剂浓度和初始氢气压力对反应效果的影响。在单因素实验考察的基础上,采用响应曲面法研究反应条件对石脑油和柴油总收率的影响,拟合回归方程并求解得到最优反应条件。结果表明,优化的催化裂化油浆悬浮床加氢裂化反应条件为:反应温度447.7℃、催化剂浓度146.38μg/g、初始氢气压力9.63 MPa。在此条件下回归方程和验证实验得到的石脑油和柴油总收率分别为42.53%和42.87%。
The simulation hydrocracking experiment of FCC slurry is conducted in a magnetic-stirred autoclave to simulate the situation in real slurry-bed and the influences of reaction temperature,catalyst concentration and initial hydrogen pressure are investigated. Based on single factor experiments,the influence of reaction conditions on the total yield of naphtha and diesel is studied by response surface methodology. The optimal reaction conditions are obtained by fitting regression equation.The optimal reaction conditions for hydrocracking FCC slurry in a slurry bed are as follows:reaction temperature is at 447. 7℃,catalyst concentration is 146. 38 μg·g~(-1) and the initial pressure of hydrogen is 9. 63 MPa.The total yield of naphtha and diesel oil is 42. 53% by regression equation and 42. 87% by verification experiment under these optimal conditions.
The simulation hydrocracking experiment of FCC slurry is conducted in a magnetic-stirred autoclave to simulate the situation in real slurry-bed and the influences of reaction temperature,catalyst concentration and initial hydrogen pressure are investigated. Based on single factor experiments,the influence of reaction conditions on the total yield of naphtha and diesel is studied by response surface methodology. The optimal reaction conditions are obtained by fitting regression equation.The optimal reaction conditions for hydrocracking FCC slurry in a slurry bed are as follows:reaction temperature is at 447. 7℃,catalyst concentration is 146. 38 μg·g~(-1) and the initial pressure of hydrogen is 9. 63 MPa.The total yield of naphtha and diesel oil is 42. 53% by regression equation and 42. 87% by verification experiment under these optimal conditions.
引文
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[2]陈玉龙,杨基和,刘英杰,等.催化裂化油浆抽提油在Ni-Mo/γ-Al2O3催化剂上选择性加氢研究[J].精细石油化工,2012,29(6):63-67.
[3]古云格,崔文龙,杨基和,等.油浆抽提油在Ni-Mo/Si O2-Al2O3催化剂上加氢脱除PAHs动力学[J].石油化工高等学校学报,2014,27(1):17-21.
[4]张艳梅,赵广辉,卢竞蔓,等.催化裂化油浆高值化利用技术研究现状[J].化工进展,2016,35(3):754-757.
[5]常泽军,刘熠斌,杨朝合,等.催化裂化油浆利用研究进展[J].炼油技术与工程,2016,46(8):1-5.
[6]黄风林,郭亚冰,范峥,等.催化裂化(FCC)油浆作煤直接液化溶剂的研究进展[J].化工进展,2014,33(4):866-872.
[7]闫瑞萍,朱继生,杨建丽,等.4种煤与催化裂化油浆处理的研究-转化率及产物分布的变化规律[J].中国矿业大学学报,2001,30(3):233-237.
[8]王永菲,王成国.响应面法的理论与应用[J].中央民族大学学报,2005,14(3):236-239.
[9]赵鹏,李文红,朱骤海,等.超声提取款冬花多糖的响应面法工艺优化[J].精细化工,2009,26(6):546-549.
[10]章凯,黄国林,黄小兰,等.响应面优化微博辅助萃取柠檬皮中果胶的研究[J].精细化工,2010,27(1):52-56.
[11]李璐,杨超晖,孙佩石,等.基于响应面优化条件下柚皮Pb2+的吸附[J].环境科学学报,2009,29(7):1426-1433.
[12]陈岩,易封萍,肖作兵.响应面优化纳米UF香精微胶囊工艺[J].精细化工,2013,30(3):51-55.
[13]刘传荣,陈思浩,郑玉林,等.响应面分析法优化壳聚糖复合海绵的工艺[J].化工进展,2014,33(2):465-469.
[14]张秀红,孙静超,李琪.响应面法优化茉莉花茶茶多糖提取工艺[J].基因科学与应用生物学,2010,29(3):603-608.
[15]李亚娜,林永成,佘志刚.响应面分析优化羊栖菜多糖的提取工艺[J].华南理工大学学报:自然科学版,2004,32(11):28-32.
[16]Ambat P,Ayyanna C.Optimizing medium constituents and fermentation conditions for citric production from palmer jaggery using response surface methods[J].World Journ of Microbiology and Biotechnology,2001,17:331-335.
[17]Endalkachew Sshle-Demessie,Venu Gopal Devulapelli,Ashraf Aly Hassan.Hydrogenation of anthracene in supercritical carbon dioxide solvent using Ni support on Hβ-zeolite[J].Catalyst Catalysts,2012,2:85-100.
[18]Myers R H,Montgomery D C,Anderson-Cook C M.Response surface methodology:Process and product optimization using designed experiments[M].Hoboken,New Jersey:John Wiley and Sons,Inc,2009.
[19]张润楚,郑海涛,兰燕.实验设计与分析及参数优化[M].北京,中国统计出版社,2003.
[20]Huang Y,Zheng H T,Lan Y.Influence analysis in response surface methodology[J].Journal of Statistical Planning and Inference,2014,147:288-203.
[21]Diza-Garcia J A,Caro-Lopera F J.Asymptotic normality of the optimal solution in response surface methodology[J].Journal of Statistical Theory and Practice,2014,8(2):166-175.