亚微米FeAlMFI沸石合成、表征及甲醇转化性能

doi:10.3969/j.issn.1006-396X.2012.01.006

石油化工高等学校学报 ›› 2012, Vol. 25 ›› Issue (1): 26-31.DOI: 10.3969/j.issn.1006-396X.2012.01.006

亚微米FeAlMFI沸石合成、表征及甲醇转化性能

王磊¹,王侨¹,刘显灵¹,殷勤²,金英杰^1*

1.辽宁石油化工大学;2.湖南百利工程科技有限公司

收稿日期:2011-12-22 修回日期:1900-01-01 出版日期:2012-02-25 发布日期:2012-02-25
作者简介:王磊（１９８５－），男，山东曲阜市，在读硕士
基金资助:
辽宁省自然科学基金项目（２００９２２１８０

Preparation and Characterization of Submicron FeAlMFI Zeolite  and Methanol Conversion Catalytic Performance

1. Liaoning Shihua University,Fushun Liaoning 113001, P.R.China;  2. Hunan Baili Engineering Technology Co., Ltd., Yueyang Hunan 414007, P.R.China

Received:2011-12-22 Revised:1900-01-01 Published:2012-02-25 Online:2012-02-25

摘要/Abstract

摘要： 以硅溶胶、硝酸铁和硫酸铝为原料，四丙基溴化铵为模板剂，甲基纤维素（ＭＣ）为微反应器模板，采用水凝胶制约法合成亚微米ＦｅＡｌＭＦＩ沸石。考察了晶化时间、晶化温度和甲基纤维素浓度等因素对合成沸石粒度的影响。利用ＸＲＤ，ＩＣＰ，ＬＰＳＡ等手段对样品结构和粒度尺度进行了表征，所合成的沸石为粒径１００～２００ｎｍ的ＦｅＡｌＭＦＩ亚微米沸石。采用催化甲醇制低碳烯烃（ＭＴＯ）的反应考察了ＺＳＭ－５和ＦｅＡｌＭＦＩ沸石的催化性能，结果表明，亚微米ＦｅＡｌＭＦＩ沸石具有较高的活性稳定性，其低碳烯烃选择性可达８５．９％。

关键词: 甲基纤维素 , 水凝胶制约法 , 亚微米沸石 , ＦｅＡｌＭＦＩ , 甲醇制低碳烯烃

Abstract: Submicron zeolites FeAlMFI were synthesized by hydrogel constraint synthesis method,with silica sol, ferric nitrate and aluminum sulfate being used as silicon, iron and aluminum sources, respectively, and TPABr as template agent, methyl cellulose as micro-reactor template. The factors that influence particle size were also discussed, such as crystallization time, crystallization temperature and MC. The structure and particle size of samples obtained were characterized by means of XRD, ICP and LPSA. The results indicate that the synthesized zeolite samples are submicron FeAlMFI zeolites, with 100～200 nm particle sizes. The catalytic performance of ZSM-5 and FeAlMFI zeolites was investigated by the methanol-to-olefins reaction. The results of methanol reaction tests show that submicron FeAlMFI zeolite catalyst exhibited a high active stability of methanol conversion and the selectivity to light olefins is increased significantly to 85.9%.

Key words:

Methyl cellulose, , Hydrogel constraint synthesis, , Submicron zeolite, , FeAlMFI, , Methanol-to-olefins(MTO)mso-ascii-font-family: Calibri, mso-ascii-theme-font: minor-latin, mso-fareast-font-family: 宋体, mso-fareast-theme-font: minor-fareast, mso-hansi-font-family: Calibri, mso-hansi-theme-font: minor-latin">

王磊,王侨,刘显灵,殷勤. 亚微米FeAlMFI沸石合成、表征及甲醇转化性能[J]. 石油化工高等学校学报, 2012, 25(1): 26-31.

WANG Lei, WANG Qiao,LIU Xian-ling,et al. Preparation and Characterization of Submicron FeAlMFI Zeolite  and Methanol Conversion Catalytic Performance[J]. Journal of Petrochemical Universities, 2012, 25(1): 26-31.

亚微米FeAlMFI沸石合成、表征及甲醇转化性能

Preparation and Characterization of Submicron FeAlMFI Zeolite  and Methanol Conversion Catalytic Performance

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics