Microwave -Induced n -Hexane A romatizat ion Reaction

Journal of Liaoning Petrochemical University ›› 2007, Vol. 27 ›› Issue (2): 24-26.

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Microwave -Induced n -Hexane A romatizat ion Reaction

1.Liaoning University of Petroleum &Chemical Technology , Fushun Liaoning 113001, P .R .China;
2 .Refinery NO .2 of Fushun Petrochemical Company CN PC, Fushun Liaoning 113006 , P .R .China

Received:2007-01-18 Published:2007-06-20 Online:2017-07-05

正己烷在微波诱导下芳构化反应

王　婵¹, 赵增华¹ , 周秉伦²

1 .辽宁石油化工大学, 辽宁抚顺113001 ;
2 .中国石油抚顺石化公司石油二厂, 辽宁抚顺113006

作者简介:王婵(1979 -), 女, 辽宁抚顺市, 在读硕士。

Abstract

Abstract:

　 The aromatization reaction over ZnNi/H ZSM -5, by the microwave heating and conventional heating methods, had been undertaken using n -hexane as the source under the conditions of different temperatures.Compared with the condition of conventional heating , the active centers of B acid and L acid in the ZnNi/ZSM -5 were excited selectively by microwave , the strength of B acid and L acid were enhanced , which accelerated the aromatization reaction, improved the yield of BTX.It is fitting that the aromatization reacted at 450 ℃ by microwave heating the yield and selectivity of BTX is increased about 5 % and 4 % respectively , dealkylation of aromatics can be promoted also , which effects the distribution of aromatics, and results in the increase of benzene and to luene , but decrease of xylene and ethylbenzene in the products .With the increasing of reaction temperature , cracking reaction is strengthened , however , the yields of C-6 and BTX still are more than that by the conventional heating .

Key words: 　n-H exane, , Microwave -induced catalysis, , Aromatization

摘要： 　以正己烷为原料, ZnNi/ H ZSM -5 为催化剂, 分别采用微波和常规两种加热方式, 在不同反应温度条件下进行芳构化反应。在微波作用下, 催化剂的B 酸、L 酸活性中心被选择性激活, B 酸、L 酸酸性的增强提高了芳构化反应速度, BTX(苯, 甲苯和二甲苯)收率相应提高, 进了反应物裂解、聚合、环化、脱氢芳构化反应的进行。微波加热存在适宜反应温度区间, 450 ℃时BTX 给出中收率较高, 比常规加热提高约5 %, BTX 选择性提高约4 %, 同时也催化了烷基芳烃脱烷基反应, 芳烃分布发生改变, 苯、甲苯选择性上升, 乙苯、二甲苯选择性下降。随温度的继续升高, 裂解副反应加剧, 抑制了反应的进一步进行, 但C₆ 以下组分含量及BTX 收率仍高于常规加热。

关键词: 正己烷, 　微波诱导催化, 　芳构化

CLC Number:

null

WANG Chan, ZHAO Zeng -hua, ZHOU Bing -lun. Microwave -Induced n -Hexane A romatizat ion Reaction[J]. Journal of Liaoning Petrochemical University, 2007, 27(2): 24-26.

王　婵, 赵增华, 周秉伦. 正己烷在微波诱导下芳构化反应[J]. 辽宁石油化工大学学报, 2007, 27(2): 24-26.

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Microwave -Induced n -Hexane A romatizat ion Reaction

正己烷在微波诱导下芳构化反应

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