STUDY ON CATALYTIC PERFORMANCE OF HMCM-22 ZEOLITE FOR PROPYLENE OLIGOMERIZATION

Abstract

Abstract: The propylene oligomerization catalyzed by HMCM-22 zeolite was studied and compared with HZSM-5, HY, HMOR and Hβ zeolite. The relationship between pore structure, acid properties and propylene oligomerization performance of 5 kinds of zeolites were investigated by a series of physical characterization methods and propylene oligomerization evaluation. The results showed that the topological structure and acidity of HMCM-22 zeolite had significant effects on the activity, selectivity and stability of propylene oligomerization. HMCM-22 zeolite has multi-dimensional pore structure, moderate acidity, good product diffusion performance and excellent carbon accumulation resistance, and the activity and stability of propylene oligomerization reaction are the best. It was found that HMCM-22 zeolite with high acid content of B acid and total acid had high initial activity and was easy to produce high carbon number products, but the zeolite with low selectivity of C_3n and moderate mesoporous ratio had better stability. The results of stability evaluation of HMCM-22 zeolite showed that the conversion rate of propylene was over 85% and the selectivity of C_3n reached 77.6% within 300 h, which indicated excellent propylene oligomerization activity, selectivity and stability.

Key words: propylene oligomerization, HMCM-22, zeolite, pore structure, acidity

References

[1]张君涛，王海军，张国利，等.丙烯齐聚催化剂的研究进展[J].石油化工, 2008, 37(3):305-311
[2]谭亚南，程牧曦，艾珍，等.丙烯齐聚反应催化剂研究进展[J].天然气化工, 2018, 43(3):111-114
[3]纪华，吕毅军，胡津仙，等.烯烃齐聚催化反应研究进展[J].化学进展, 2002, 14(2):146-155
[4]苏雄，段洪敏，黄延强，等.低碳烯烃齐聚合成液体燃料研究进展[J].化工进展, 2016, 35(7):2046-2056
[5]訾仲岳.ZSM-5分子筛改性及其烯烃齐聚反应性能研究[D]. 中国科学院大学，2020.
[6]闫亚茹.丙烯齐聚固体磷酸催化剂催化过程研究[D]. 太原理工大学化学工程与技术，2016.
[7]BICKEL E E，GOUNDER R.Hydrocarbon Products Occluded within Zeolite Micropores Impose Transport Barriers that Regulate Br?nsted Acid-Catalyzed Propene Oligomerization[J].JACS Au, 2022, 2(11):2585-2595
[8]SARAZEN M L，DOSKOCIL E，IGLESIA E.Effects of Void Environment and Acid Strength on Alkene Oligomerization Selectivity[J].ACS Catalysis, 2016, 6(10):7059-7070
[9]BICKEL E E，GOUNDER R.Hydrocarbon Products Occluded within Zeolite Micropores Impose Transport Barriers that Regulate Br?nsted Acid-Catalyzed Propene Oligomerization[J].JACS Au, 2022, 2(11):2585-2595
[10]刘佳，宋兆阳，李思洁，等.不同拓扑结构分子筛催化剂上正十二烷异构化反应性能比较研究[J].燃料化学学报中英文, 2023, 51(10):1441-1452
[11]POPOV A G，FEDOSOV D A，IVANOVA I I，et al.A ZSM-5 zeolite-based catalyst for oligomerization of the butane–butylene fraction[J].Petroleum chemistry, 2016, 56(3):237-243
[12]POPOV A G，PAVLOV V S，IVANOVA I I.Effect of crystal size on butenes oligomerization over MFI catalysts.[J].Journal of Catalysis, 2016, 335(003):155-164
[13]纪华.丙烯在分子筛催化剂上齐聚合成液体燃料的研究[D]. 山西：中国科学院山西煤炭化学研究所，2004.
[14]董平平，王晓军，侯凯湖.制备条件对-分子筛催化异丁烯气相齐聚性能的影响[J].化学反应工程与工艺, 2009, 25(02):170-174
[15]鲁亚琳.MCM-22分子筛催化丁烯齐聚反应研究[J].工业催化, 2006, 14(003):14-169
[16]李菁，田艳明，郭志伟，等.及分子筛在苯液相烷基化合成乙苯反应中的应用[J].化工科技, 2021, 29(02):36-41
[17]童伟益，刘闯，张俊玲，等.高硅-分子筛的合成与催化性能[J].石油学报石油加工, 2024, 40(01):65-74
[18]刘佳宝.碱土金属氧化物改性MCM-22分子筛择形催化甲苯烷基化反应的研究[D]. 常州大学, 2021.
[19]Mlinar A N，Zimmerman P M，Celik F E，et al.Effects of Bronsted-acid site proximity on the oligomerization of propene in H-MFI[J].Journal of Catalysis, 2012, 288(none):65-73
[20]LIU J，LIN L，WANG J，et al.Transient Br?nsted Acid Sites in Propene Aromatization over Zn-Modified HZSM-5 Detected by Operando Dual-Beam FTIR[J].The Journal of Physical Chemistry C, 2019, 123(12):7283-7289
[21]MURAZA O.Maximizing Diesel Production through Oligomerization: A Landmark Opportunity for Zeolite Research[J].Industrial & Engineering Chemistry Research, 2015, 54(3):781-789
[22]ALAM F，ZHANG L，WEI W，et al.Catalytic Systems Based on Chromium(III) Silylated-Diphosphinoamines for Selective Ethylene Tri-Tetramerization[J].ACS Catalysis, 2018, 8(11):10836-10845
[23]ZHANG N，WANG S，SONG L，et al.Iron (II) complexes with hyperbranched salicylaldimine ligands: Synthesis, characterization and ethylene oligomerization.[J].Inorganica Chimica Acta, 2016, 453(001):369-375
[24]翟云平，李明罡，罗一斌.ZSM-5分子筛催化1-己烯叠合反应的研究[J].石油炼制与化工, 2015, 46(9):5-9