铂锡催化剂对甲基环戊烷脱氢异构反应的催化性能研究

石油炼制与化工 ›› 2013, Vol. 44 ›› Issue (11): 10-14.

铂锡催化剂对甲基环戊烷脱氢异构反应的催化性能研究

李金,马爱增,王春明

中国石化石油化工科学研究院

收稿日期:2013-05-07 修回日期:2013-07-01 出版日期:2013-11-12 发布日期:2013-10-29
通讯作者: 李金 E-mail:lijin.ripp@sinopec.com

STUDY ON CATALYTIC ACTIVITY OF PLATINUM-TIN CATALYST FOR THE DEHYDROISOMERIZATION OF METHYLCYCLOPENTANE

Received:2013-05-07 Revised:2013-07-01 Online:2013-11-12 Published:2013-10-29

摘要/Abstract

摘要： 以甲基环戊烷脱氢异构反应为探针反应，结合程序升温还原、氢氧滴定等催化剂物化表征手段，研究了金属Pt、助剂Sn及载体等对Pt-Sn/Al2O3催化剂催化甲基环戊烷脱氢异构反应性能的影响。结果表明：催化剂中添加助剂Sn后，甲基环戊烷转化率下降，目标产物苯选择性提高；催化剂的酸量略有增加，Pt的两种活性中心发生了变化， Pt与Sn之间发生了一定的相互作用,改变了催化剂的催化性能。

Abstract: To know more about the reactions of methylcyclopentane in the catalytic reforming process, the dehydroisomerization process to benzene was studied over Pt-Sn/Al2O3 catalysts using methylcyclopentane as a probe. Different kinds of Pt-Sn/Al2O3 and Pt /Al2O3 catalysts were prepared, and the influence of content of Pt、Cl and Sn on the methylcyclopentane conversion and benzene selectivity was investigated. The results show that the methylcyclopentane conversion increases firstly and then decrease with Pt content increasing. The introduction of tin reduces the methylcyclopentane conversion, while benzene selectivity presents a similar variation trend to the conversion as Pt content changes. It is suggested that the addition of Sn generates two kinds of active centers and that tin apparently changes the catalytic activities of Pt/Al2O3 catalysts because of interaction between Pt and Sn.

李金马爱增王春明. 铂锡催化剂对甲基环戊烷脱氢异构反应的催化性能研究[J]. 石油炼制与化工, 2013, 44(11): 10-14.

参考文献

[1] 徐承恩.催化重整工艺与工程[M].北京：中国石化出版社,2006,1-2
[2] George J.Antos,Abdullah M.Aitani.Catalytic Naphtha Reforming[M]. (Second edition).New York:Marcel Dekker,Inc,2004.1-3
[3] 林世雄.石油炼制工程[M]:第三版.北京：石油工业出版社,2000,480-482
[4] Robert A Meyers. Handbook of Petroleum Refining Processes [M]. (Second edition).New York:M Graw Hill,1997.231-237
[5] R. Bacaud, P. Bussiere, F. Figueras, et al.Role of Tin in Platinum-Tin Reforming Catalysts[J].Studies in Surface Science and Catalysis. 1976,1: 509–523
[6] R. Burch, L.C. Garla.Platinum-tin reforming catalysts: II. Activity and selectivity in hydrocarbon reactions.Journal of Catalysis[J]. 1981, (71)2:360–372
[7] R.Burch,Alison J.Mitchell.The role of tin and rhenium in bimetallic reforming catalysts.Applied Catalysis[J]. 1983,(6)1:121-128
[8] B. Coq, F. Figueras.Conversion of methylcyclopentane on platinum-tin reforming catalysts.Journal of Catalysis[J]. 1984, (85) 1:197–205
[9] J. Beltramini, D.L. Trimm.Catalytic reforming of n-heptane on platinum, tin and platinum-tin supported on alumina[J].Applied Catalysis. 1987,(31)1:113–118
[10] J. Beltramini, D.L. Trimm.Activity, selectivity and coking over mono- and bi-metallic reforming catalysts[J]. Applied Catalysis,1987, (32): 71–83
[11] 刘辰，马爱增.工业连续重整催化剂的Pt聚集于再分散研究[J].石油炼制与化工，2010(41)89:2-33
[12] M.J.Sterba,V.Haensel.Catalytic Reforming[J],I E C.Proc Res Dev.1976,15(1)
[13] Maciver D S.Ctalytic aluminas I.Surface chemistry of eta and gamma alumina[J].J Catal,1963,2(6):485
[14] Maciver D S,Wilmot W H,Bridges J M. Ctalytic aluminas:II. Ctalytic Properties of eta and gamma alumina[J].J Catal,1964,3:502-511
[15] Peri J B.Infrared Study of Adsorption of Ammonia on Dry γ-Alumina[J].J Phys Chem,1965,69(1)：231-239
[16] Parry E P.An Infrared Study of Pyridine Adsorbed on Acidic Solids.Characterization of Surface Acidity[J].J Catal,1963,2:371-379
[17]Webb A N.Hydrofluoric Acid and Acidity of Alumina[J].I E C,1957,49(2):261-263
[18]Tanaka M,Ogasawara S.Infrared Studies of the Adsorption and the Catalysis of Hydrogenchloride on Alumina and on Silica[J].J Catal,1970,16:157-163
[19]Arena F,Frusteri F,Mondello N,Giordano N.Interaction Pathway of Chloride Ions with γ-Al2O3:Surface Acidity and Thermal Stability of the Cl/γ-Al2O3 System[J].J C S.Faraday Trans,1992,88(22):3353-3356
[20] 林励吾,杨维慎,贾继飞,徐竹生,张涛,等.负载型高分散双组分催化剂的表面结构及催化性能研究[J].中国科学,1999(29)2:109-117
[21]B.Coq,F.Figueras.Conversion of methylcyclopentane on platinum-tin reforming catalysts[J].Journal of Catalysis. 1984, (85) 1:197–205
[22] 俞佳枫,方雯,葛庆杰,徐恒泳.助剂形态对Pt/γ-Al2O3催化剂抗积炭性能的影响[J].催化学报，2011(3)8:1364-1369
[23] Zhang Tao, Zang Jingling, Lin Liwu.Relation between Surface Structure and Carbon Deposition on Pt/Al2O3 and Pt-Sn/Al2O3 Catalysts[J]. Catalyst Deactivation 1991,68:143-150