[1]张凯,袁梦真,王国玮,等.制备方法对Zr-Fe基乙苯脱氢催化剂性能的影响[J].石化技术与应用,2022,6:367-371.
ZHANG Kai,YUAN Meng-zhen,WANG Guo-wei,et al.Influence of preparation method on performance of Zr-Fe-based ethylbenzene dehydrogenation catalyst[J].Petrochemical technology & application,2022,6:367-371.
点击复制
制备方法对Zr-Fe基乙苯脱氢催化剂性能的影响(PDF)
《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
-
2022年6期
- 页码:
-
367-371
- 栏目:
-
- 出版日期:
-
2022-11-10
文章信息/Info
- Title:
-
Influence of preparation method on performance of Zr-Fe-based ethylbenzene dehydrogenation catalyst
- 文章编号:
-
1009-0045(2022)06-0367-05
- 作者:
-
张凯; 袁梦真; 王国玮; 李春义
-
中国石油大学(华东) 重质油国家重点实验室,山东 青岛 266580
- Author(s):
-
ZHANG Kai; YUAN Meng-zhen; WANG Guo-wei; LI Chun-yi
-
State Key Laboratory of Heavy Oil Processing, China University of Petroleum(EastChina), Qingdao 266580,China
-
- 关键词:
-
乙苯脱氢反应; Zr-Fe基催化剂; 氧化铝; 制备方法; 孔结构; 酸性
- Keywords:
-
ethylbenzene dehydrogenation; Zr-Fe-based catalyst; alumina; preparation method; proe structre; acidity
- 分类号:
-
TQ 426.94
- DOI:
-
DOI:10.19909/j.cnki.ISSN1009-0045.2022.06.0367
- 文献标识码:
-
B
- 摘要:
-
分别采用浸渍法、溶胶-凝胶法、水热合成法和共沉淀法制备了Al2O3负载的Zr-Fe基催化剂25 Zr 5 Fe/Al2O3,相应标记为25 Zr 5 Fe/Al2O3-imp,25 Zr 5 Fe/Al2O3-sol-gel, 25 Zr 5 Fe/Al2O3-ht和25 Zr 5 Fe/Al2O3-cop;对其进行了XRD,BET,H2-TPR,NH3-TPD表征,考察了其晶相组成、孔结构、氧化还原性、酸性等性质;将制备的这4种基催化剂用于乙苯脱氢反应中,结合乙苯脱氢活性,简要分析了其构效关系。结果表明:这4种25 Zr 5 Fe/Al2O3催化剂的乙苯脱氢催化初始活性顺序与其所含有的中强酸含量高低顺序一致,即从大到小依次为25 Zr 5 Fe/Al2O3-imp,25 Zr 5 Fe/Al2O3-sol-gel,25 Zr 5 Fe/Al2O3-cop,25 Zr 5 Fe/Al2O3-ht;25 Zr 5 Fe/Al2O3催化剂的催化活性、稳定性和选择性,不仅与其相应表面的酸类型有关,而且受其孔结构的影响也比较大。
- Abstract:
-
The Zr-Fe-based catalysts(25 Zr 5 Fe/Al2O3) using Al2O3 as the carrier were prepared by impregnation method, sol-gel method, hydrothermal synthesis method and co-precipitation method and were labeled as 25 Zr 5 Fe/Al2O3-imp,25 Zr 5 Fe/Al2O3-sol-gel, 25 Zr 5 Fe/Al2O3-ht and 25 Zr 5 Fe/Al2O3-cop, respectively. Then, such catalysts were characterized by XRD, BET, H2-TPR and NH3-TPD to investigate their crystal phase composition, pore structure, redox, acidity, etc. Such 4 kinds of 25 Zr 5 Fe/Al2O3 catalysts were used for the ethylbenzene dehydrogenation reaction. Combined with the dehydrogenation activity of ethylbenzene, the structure-activity relationship were briefly analyzed. The results showed that the initial activity ranking of the above4 catalysts for ethylbenzene dehydrogenation was consistent with the ranking of their corresponding medium and strong acid contents, and the order from large to small was as followed:25 Zr 5 Fe/Al2O3-imp, 25 Zr 5 Fe/Al2O3-sol-gel, 25 Zr 5 Fe/Al2O3-cop, 25 Zr 5 Fe/Al2O3-ht. The catalytic activity of 25 Zr 5 Fe/Al2O3 catalysts were not only related to the acid types of their corresponding surfaces, but also greatly affected by their pore structures.
参考文献/References
[1] 廖仕杰, 缪长喜. 高稳定性,高活性和低水比乙苯脱氢催化剂的开发[C]//全国工业催化技术及应用年会. 常州:工业催化杂志社, 2009:333-336.[2] 廖仕杰, 陈铜, 缪长喜, 等. 乙苯脱氢制苯乙烯工业催化剂的失活原因[J]. 催化学报, 2008,29 (2): 179-184. [3] Trebala M, Bieniasz W, Holmlid L, et al. Potassium stabilization in β-K2Fe22O34 by Cr and Ce doping studied by field reversal method [J]. Solid State Ionics, 2011, 192(1):664-667.[4] Zhang K, Miao P, Zhang H, et al. Research on ethylbenzene dehydrogenation over the Fe-Al-based catalysts in a circulating fluidized-bed unit[J]. Journal of the Taiwan Institute of Chemical Engineers, 2021(128): 55-63. [5] 范勤, 袁怡庭, 朱明, 等. 钾含量对乙苯脱氢催化剂中KFe11O17物相形成的影响[J]. 石化技术与应用, 2003, 21(2):99-101.[6] France L, Li W, Zhang Y, et al. A superior Fe-Zr mixed oxide catalyst for the simultaneous reduction of NO and SO2 with CO[J]. Applied Catalysis B(Environmental),2020 (269) :118822-118833.[7] Zhang S, Li D, Liu Y, et al. Zirconium doped precipitated Fe-based catalyst for Fischer-Tropsch synthesis to light olefins at industrially relevant conditions[J]. Catalysis Letters, 2019(149): 1486-1495. [8] Noichi H, Uddin A, Sasaoka E. Steam reforming of naphthalene as model biomass tar over iron-aluminum and iron-zirconium oxide catalysts [J]. Fuel Processing Technology,2010, 91(11):1609-1616.[9] Zhu X, Gao Y, Wang X, et al. A tailored multi-functional catalyst for ultra-efficient styrene production under a cyclic redox scheme [J]. Nature Communications, 2021, 12(1):1329-1339.[10] Zhang K, Zhang H, Feng X, et al. Remarkable support effect on the reactivity of Sn-based catalyst for ethylbenzene dehydrogenation [J]. Catalysis Letters, 2022, 10.1007/s 10562-022-04027-x.[11] Zhang R, Liu H, He D, et al. Pure monoclinic ZrO2 prepared by hydrothermal method for isosynthesis [J]. Catalysis Communications, 2012, 26(5): 244-247.[12] 张凯, 张焕玲, 王国玮, 等. 黏结剂对Fe基乙苯脱氢催化剂性能的影响[J]. 石化技术与应用, 2022, 40(4): 229-232.[13] Subhasis D, Manideepa S, Jim P, et al. A study of the synergy between support surface properties and catalyst deactivation for CO2 reforming over supported Ni nanoparticles[J]. Applied Catalysis A (General), 2017(545) : 113-126.[14] Li X, Zhu Q, Wang J. NiO-MoO3 promoted Pt/ZrO2-TiO2-Al2O3 catalyst with excellent cracking performance of n-decane[J]. Petroleum Science and Technology, 2020, 38(6): 595-601.
备注/Memo
- 备注/Memo:
-
国家自然科学基金资助项目(项目编号:U 1362201)
更新日期/Last Update:
2022-11-10