详细信息
文献类型:期刊文献
中文题名:镁铝尖晶石作为催化裂化双功能助剂的研究
英文题名:STUDY ON EMPLOYING Mg-Al SPINEL AS A DUAL-FUNCTION ADDITIVE IN RFCC
作者:李晓[1];谭乐成[1];李承烈[1]
机构:[1]华东理工大学石油加工研究所,上海200237
年份:2001
卷号:17
期号:3
起止页码:57
中文期刊名:石油学报(石油加工)
外文期刊名:Acta Petrolei Sinica(Petroleum Processing Section)
收录:CSTPCD;;Scopus;北大核心:【北大核心2000】;CSCD:【CSCD_E2011_2012】;
语种:中文
中文关键词:镁铝尖晶石;DeSOx;捕钒剂;催化裂化双功能助剂
外文关键词:Mg Al spinel;DeSO x ; V trap
摘要:酸性条件下制备了一系列不同镁铝比的尖晶石 ,作为硫转移剂应用于 FCC过程中。评价了其组成、结构、Ce的引入对其硫转移活性的影响 ,得到了作为硫转移剂的最佳组成。通过 MAT活性评价和固定流化床反应评价证实 ,最佳组成的尖晶石也是合适的捕钒剂。在 FCC催化剂体系中 ,它对催化剂活性有良好的保护作用 ,同时具有捕钒和硫转移作用。尖晶石中游离 Mg O含量的增加 ,既不能使硫转移活性提高 。
Alumina rich, stoichiometric and magnesium rich spinels were prepared in acidic conditions The influence of mole ratio of MgO/Al 2O 3 and cerium content on DeSO x activity and lattice constant was studied Relationships of aluminum content and lattice constant vs DeSO x activity were in line with those prepared in basic conditions Optimum composition for SO x transmission was obtained, and this spinel showed satisfactory V trap characteristics through MAT and FFB evaluation Free MgO content in magmesium rich spinels neither enhanced V trapping activity, nor the DeSO x activity
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