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| 催化裂化提升管进料段的优化 | |
| 引用本文： | 陈昌辉,范怡平,许栋五,时铭显. 催化裂化提升管进料段的优化[J]. 石油化工设计, 2007, 24(1): 18-20 |
| 作者姓名： | 陈昌辉 范怡平 许栋五 时铭显 |
| 作者单位： | 1. 天津辰鑫石化工程设计有限公司,天津大港,300270 2. 中国石油大学(北京),北京,102249 3. 洛阳森泰石化机械有限公司,河南,洛阳,471001 |
| 摘 要： | 通过分析冷模实验的结果,并结合催化裂化提升管的实际操作情况,揭示了催化裂化提升管进料混合段内存在的问题:由于射流二次流的产生,在进料段内局部区域催化剂颗粒相返混严重并且油剂两相浓度分布并不匹配——在油相浓度高(低)的位置,剂相浓度却较低(高)。并介绍了一种能够有效地利用和控制二次流的CS型雾化喷嘴,工业应用的结果表明CS喷嘴对提升管内油、剂两相流动、混合状况有明显地改善,可有效地提高液收、降低结焦。 |
| 关 键 词： | 催化裂化 提升管 喷嘴 进料段 气固两相流 |
| 修稿时间： | 2006-10-26 |
OPTIMIZATION DESIGN OF FEEDSTOCK INJECTION-MIXING ZONE OF FCC RISER |
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| Chen Changhui. OPTIMIZATION DESIGN OF FEEDSTOCK INJECTION-MIXING ZONE OF FCC RISER[J]. Petrochemical Design, 2007, 24(1): 18-20 | |
| Authors: | Chen Changhui |
| Abstract: | In the FCC units,two disadvantages of the traditional structure of FCC riser feedstock injection- mixing zone,namely the intense particle backmixing and the unanticipated distributions of oil-catalyst- concentration,are revealed.The principle of impro- ving the flow and mixing pattern in the feedstock in- jection-mixing zone is put forward,i.e.utilizing the favorite aspect of the jet secondary flow while dimin- ishing its disadvantageous influence.A new type of FCC CS-atomizing-nozzle is proponed.The advan- tages brought about by CS-Nozzle are seen clearly in several industrial FCC units. |
| Keywords: | FCC Riser Nozzle |
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