本文主要研究内容
作者伍祥(2019)在《加裂尾油加氢异构工艺优化与产物分离过程模拟》一文中研究指出:加氢异构是生产APⅠ Ⅱ类和Ⅲ类高档基础油的主流生产工艺,研究加裂尾油的加氢异构性能对我国润滑油产品升级换代具有重要的意义。以加裂尾油为原料,在分析其实沸点蒸馏和窄馏分性质的基础上,在小型固定床加氢反应器上对全馏分加裂尾油异构反应体积空速、反应温度和氢油比进行考察,以异构产物的倾点、液收率和粘度指数为主要评价指标确定优化反应条件。结果表明:加氢过程中始终存在着异构-裂化这一对竞争反应,温度对加氢反应过程影响最大;当异构反应占主导作用时,减小体积空速或增大氢油比有利于异构反应的进行。在8.5Mpa下,优化后的反应温度为340℃,体积空速为1.25h-1,氢油比为640,此时产物的粘度指数达到127,倾点可降至-38℃。通过质谱法分析反应前后的油品烃类组成,结果表明加氢过程中主要发生的反应包括芳烃的加氢饱和、多环烷烃的开环和长链烷烃的异构。对反应产物进行实沸点切割,在分析窄馏分理化性质的基础上确定产品归属以及异构产物切割方案。结果表明HVI基础油馏分总收率可达到78.75%,Ⅱ+和Ⅲ类高档基础油馏分收率分别为23.89%和11.71%。在上述实验基础上,采用Aspen Plus软件建立异构油常规减压蒸馏塔分离过程的严格模拟流程。对中段回流以及侧线汽提塔操作参数进行优化后获得了常规减压塔流程(LVDC)。随后将侧线耦合以及分壁塔工艺应用到LVDC中,经参数优化后提出侧线耦合强化流程SC-LVDC以及两种分壁塔流程SC-LDWC、SC-MDWC。最后从流程总能耗、TAC以及产品质量等方面对不同流程进行对比。结果表明:相比LVDC,在引入侧线耦合物流后,三种改进流程的能耗均可降低20%以上,汽提蒸汽用量随之增加;SC-LDWC和SC-MDWC相比LVDC均可节省减四线汽提塔的设备投资,SC-MDWC还可以避免减四线汽提蒸汽的使用;SC-LVDC和SC-LDWC的TAC相比LVDC略微增大,SC-MDWC的TAC与LVDC相等;SC-LVDC和SC-LDWC改造过程易于实现,在工程应用上具有更大的优势。
Abstract
jia qing yi gou shi sheng chan APⅠ Ⅱlei he Ⅲlei gao dang ji chu you de zhu liu sheng chan gong yi ,yan jiu jia lie wei you de jia qing yi gou xing neng dui wo guo run hua you chan pin sheng ji huan dai ju you chong yao de yi yi 。yi jia lie wei you wei yuan liao ,zai fen xi ji shi fei dian zheng liu he zhai liu fen xing zhi de ji chu shang ,zai xiao xing gu ding chuang jia qing fan ying qi shang dui quan liu fen jia lie wei you yi gou fan ying ti ji kong su 、fan ying wen du he qing you bi jin hang kao cha ,yi yi gou chan wu de qing dian 、ye shou lv he nian du zhi shu wei zhu yao ping jia zhi biao que ding you hua fan ying tiao jian 。jie guo biao ming :jia qing guo cheng zhong shi zhong cun zai zhao yi gou -lie hua zhe yi dui jing zheng fan ying ,wen du dui jia qing fan ying guo cheng ying xiang zui da ;dang yi gou fan ying zhan zhu dao zuo yong shi ,jian xiao ti ji kong su huo zeng da qing you bi you li yu yi gou fan ying de jin hang 。zai 8.5Mpaxia ,you hua hou de fan ying wen du wei 340℃,ti ji kong su wei 1.25h-1,qing you bi wei 640,ci shi chan wu de nian du zhi shu da dao 127,qing dian ke jiang zhi -38℃。tong guo zhi pu fa fen xi fan ying qian hou de you pin ting lei zu cheng ,jie guo biao ming jia qing guo cheng zhong zhu yao fa sheng de fan ying bao gua fang ting de jia qing bao he 、duo huan wan ting de kai huan he chang lian wan ting de yi gou 。dui fan ying chan wu jin hang shi fei dian qie ge ,zai fen xi zhai liu fen li hua xing zhi de ji chu shang que ding chan pin gui shu yi ji yi gou chan wu qie ge fang an 。jie guo biao ming HVIji chu you liu fen zong shou lv ke da dao 78.75%,Ⅱ+he Ⅲlei gao dang ji chu you liu fen shou lv fen bie wei 23.89%he 11.71%。zai shang shu shi yan ji chu shang ,cai yong Aspen Plusruan jian jian li yi gou you chang gui jian ya zheng liu da fen li guo cheng de yan ge mo ni liu cheng 。dui zhong duan hui liu yi ji ce xian qi di da cao zuo can shu jin hang you hua hou huo de le chang gui jian ya da liu cheng (LVDC)。sui hou jiang ce xian ou ge yi ji fen bi da gong yi ying yong dao LVDCzhong ,jing can shu you hua hou di chu ce xian ou ge jiang hua liu cheng SC-LVDCyi ji liang chong fen bi da liu cheng SC-LDWC、SC-MDWC。zui hou cong liu cheng zong neng hao 、TACyi ji chan pin zhi liang deng fang mian dui bu tong liu cheng jin hang dui bi 。jie guo biao ming :xiang bi LVDC,zai yin ru ce xian ou ge wu liu hou ,san chong gai jin liu cheng de neng hao jun ke jiang di 20%yi shang ,qi di zheng qi yong liang sui zhi zeng jia ;SC-LDWChe SC-MDWCxiang bi LVDCjun ke jie sheng jian si xian qi di da de she bei tou zi ,SC-MDWChai ke yi bi mian jian si xian qi di zheng qi de shi yong ;SC-LVDChe SC-LDWCde TACxiang bi LVDClve wei zeng da ,SC-MDWCde TACyu LVDCxiang deng ;SC-LVDChe SC-LDWCgai zao guo cheng yi yu shi xian ,zai gong cheng ying yong shang ju you geng da de you shi 。
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论文详细介绍
论文作者分别是来自华东理工大学的伍祥,发表于刊物华东理工大学2019-07-16论文,是一篇关于加裂尾油论文,加氢异构论文,基础油论文,侧线耦合论文,分壁塔论文,华东理工大学2019-07-16论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自华东理工大学2019-07-16论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:加裂尾油论文; 加氢异构论文; 基础油论文; 侧线耦合论文; 分壁塔论文; 华东理工大学2019-07-16论文;