石油学报(石油加工
2012年8月
ACTA PETROLFI SINICA (PETROLEUM PROCESSING SECTION)
第28卷第4期
文章编号:1001-8719(2012)04-054-06
提高液体收率的上进料
延迟焦化新工艺
王宝石,朱建华1,王龙延,秦如意2,王洪斌2
(1.中国石油大学化工学院,北京昌平102249;2.中国石化洛阳石油化工工程公司,河南洛阳471003)
摘要;基于抑制
延迟焦化中间产物二次反应的原理,提出了具有上进上出反应器型式的
延迟焦化新工艺。中型试验
结果表明,与常规延迟
焦化工艺相比,上进料延迟
焦化工艺得到的液体产品收率增加2.65百分点,焦炭及气体产
率分别下降2.01百分点和0.85百分点,焦化蜡油质量得到明显改善;采用可灵活调节循环比的延迟
焦化工艺加工
常规减压渣油,可使液体产品收率提高2百分点以上,从而可获取更好的经济效益。
关键词:延迟焦化;上进料;产品性质
中图分类号:TE624文献标识码:Adoi:10.3969.issn.1001-8719.2012.04.003
A New Top Feeding Delayed Coking Process for Maximizing Liquid Yields
WANG Baoshi ,ZHU Jianhua], WANG Longyan, QIN Ruyi, WANG Hongbin
(1. College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
2. Luoyang Petrochemical Engineering Corporation, SINOPEC, Luoyang 471003, China)
Abstract Based on the mechanics of inhibiting secondary reaction of intermediates, a new delayed
coking process characterized by top feeding and discharging reactors was developed. The pilot scale
test results demonstrated that, compared to the conventional delayed coking process, the yield of
iquid products obtained from top feeding delayed coking process increased by 2. 65 percent points
he yield of coke and gas decreased by 2. 01 and 0.85 percent points, respectively. The properties of
coker gas oil were improved obviously. Two percent points increased on yield of liquid products was
obtained when the conventional vacuum residue was refined by combined top feeding delayed coking
process with flexible tunable recycle ratio delayed coking process, then, better economic profits
ald be achieved
Key words: delayed coking; top feeding; product property
延迟
焦化技术是石油炼制过程中重油轻质化的 Foster- Wheeler公司的可选择液体产率延迟焦化工
重要手段之一,是劣质原油加工项目优先选择的渣艺技术( Selective yicld delayed coking, SYDEC)、
油加工方案。由于延迟焦化具有工艺技术成熟、原 Conoco Phillips公司的馏分油循环技术、ABB
料适应性强、装置投资低等特点,其工艺技术的发 Lummus公司的低压、低循环比技术等3
展速度远远高于流化焦化及灵活焦化。目前,世界
近年来,国内延迟焦化技术也取得了较快发展
上延迟焦化技术发展较快,其技术研发工作主要剧以中国石化石油化工科学研究院的成套技术及洛阳
绕提高液体产品收率。具有代表性的工艺主要有石油化工工程公司开发的可灵活调节循环比工艺为
收稿日期:2011-07-05
第一作者:王宝石,博士研究生,主要从事重油加工,超稠油及劣质原油的改质研究
通讯联系人:朱建华,教授,博士,主要从事催化反应工程、强化分离过程与超稠油及劣质原油的改质研究;Tcl:010-89733711;E-mail
rdcas(@cup.edu.cn