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[1]王漫云,潘志爽,刘涛,等.大孔氧化铝对催化裂化催化剂性能的影响[J].石化技术与应用,2022,4:258-261.
　WANG Man-yun,PAN Zhi-shuang,LIU Tao,et al.Effect of macro-porous alumina on performance offluid catalytic cracking catalysts[J].Petrochemical technology & application,2022,4:258-261.
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大孔氧化铝对催化裂化催化剂性能的影响(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2022年4期
页码:
258-261
栏目:
出版日期:
2022-07-10

文章信息/Info

Title:
Effect of macro-porous alumina on performance offluid catalytic cracking catalysts
文章编号:
1009-0045（2022）04-0258-04
作者:
王漫云; 潘志爽; 刘涛; 王辰晨; 段宏昌; 郑云峰
中国石油石油化工研究院 兰州化工研究中心，甘肃 兰州 730060
Author(s):
WANG Man-yun; PAN Zhi-shuang; LIU Tao; WANG Chen-chen; DUAN Hong-chang; ZHENG Yun-feng
Lanzhou Petrochemical Research Center，Petrochemical Research Institute， PetroChina， Lanzhou 730060， China
关键词:
大孔氧化铝; 催化裂化; 催化剂; 汽油; 焦炭
Keywords:
macroporous alumina; fluid catalytic cracking; catalyst; gasoline; coke
分类号:
TE 624.4+1
DOI:
DOI：10.19909/j.cnki.ISSN1009-0045.2022.04.0258
文献标识码:
B
摘要:
采用X射线衍射（XRD）仪、氮气吸附-脱附仪、傅里叶变换红外光谱仪等对3种大孔氧化铝（k 1，k 2，k 3）及分别采用3种大孔氧化铝所制备的催化裂化（FCC）催化剂（c 1，c 2，c 3）进行了分析表征，并在先进催化裂化装置（ACE）上对3种催化剂进行了反应性能评价。结果表明：3种大孔氧化铝组成无明显差异，主要由Al2O3组成，均具有多级孔道结构，且主要含L酸，不存在B酸，酸量高于拟薄水铝石；与常规FCC催化剂（c 0）相比，催化剂c 1，c 2，c 3具有更大的比表面积、孔体积，更高的酸量。ACE评价结果表明：与催化剂c 0相比，催化剂c 1，c 2，c 3的汽油收率依次增加了1.05，1.13，0.97个百分点，转化率依次增加了1.67，2.09，1.73个百分点，液体收率依次增加了1.31，1.41，1.04个百分点，表明加入大孔氧化铝后，可提高FCC反应性能及抗铁污染性能。
Abstract:
Three kinds of macro-porous alumina （k 1， k 2， k 3） and fluid catalytic cracking （FCC） catalysts （c1， c 2， c 3） prepared with the three kinds of macro-porous alumina were analyzed and characterized by X-ray diffraction （XRD） instrument， nitrogen adsorption-desorption instrument and Fourier transform infrared spectrometer， and the reaction performance of the three catalysts was evaluated on ACE evaluation unit. The results showed that there was no obvious difference in the composition of the three macro-porous alumina， which were all mainly composed of Al2O3， all of which had a multi-stage pore structure， and mainly contained L acid and no B acid， and the acid amount was higher than that of pseudo-boehmite； compared with conventional FCC catalyst （c 0）， the catalyst c 1， c 2， c 3 had larger specific surface area， pore volume and higher acid amount. The results of ACE evaluation showed that compared to catalyst c 0， the gasoline yield of catalyst c 1， c 2 and c 3 had increased by 1.05， 1.13， 0.97 percentage points sequentially， the conversion rate had increased by 1.67， 2.09， 1.73 percentage points respectively， and the liquid yields had increased by 1.31， 1.41， 1.04 percentage points respectively， indicating that the addition of macro-porous alumina could improve the FCC reaction performance and iron pollution resistance.

参考文献/References

［1］ 袁程远，潘志爽，谭争国，等．抗铁污染催化裂化催化剂［J］．石油化工，2017，46（7）：869-873.［2］ 李晓春.大孔氧化铝的制备及其催化应用研究［D］.西安：西安石油大学，2018.［3］ Clerici M G， Ingallina P.Epoxidation of lower olefins with hydrogen peroxide and titanium silicalite［J］.Chem Inform，1993，140（1）：71-83.［4］ Emdadi L， Oh S C， Wu Y，et al.The role of external acidity of meso-/microporous zeolites in determining selectivity for acid-catalyzed reactions of benzyl alcohol［J］.J Catal，2016，335：165-174.［5］ Crocker M，Herold R HM，Emeis C A，et al.Studies on the acidity of mordenite and ZSM-5：1. Determination of Broensted acid site concentrations in mordenite and ZSM 5 by conductometric titration［J］. J Catal，1993，97（2），432 - 439.

备注/Memo

备注/Memo:
中国石油天然气股份有限公司资助项目（项目编号：2021 DJ 5601 ）
更新日期/Last Update: 2022-07-10