コンノ　ヒロキ   Konno Hiroki   今野　大輝    所属   東邦大学  理学部 生命圏環境科学科    職種   准教授
論文種別	原著
言語種別
査読の有無	査読あり
表題	Controlling naphtha cracking using nanosized TON zeolite synthesized in the presence of polyoxyethylene surfactant
掲載誌名	正式名：Journal of Analytical and Applied Pyrolysis ISSNコード：0165-2370
巻・号・頁	110(1),338-345頁
著者・共著者	A. K. Jamil,O. Muraza,M. Sanhoob,T. Tago,H. Konno,Y. Nakasaka,T. Masuda
発行年月	2014
概要	© 2014 Elsevier B.V. All rights reserved. Valorization of naphtha, a derived intermediate from crude oil is still a crucial subject. Here we report an effort to control catalytic cracking of naphtha using nanosized TON zeolite, which was synthesized by microwave assisted hydrothermal synthesis (MAHyS) in the presence of polyoxyethylene-based surfactant. The effects polyoxyethylene (POE) surfactant on the crystal size, morphology and the crystal aspect-ratio were studied. The crystals with lengths in the range of 90-300 nm were obtained. The addition of polyoxyethylene surfactant reduced the agglomeration rate of ZSM-22 zeolite crystals. The polyoxyethylene surfactant was added with POE/Al from 2.5 to 10. Effect of Si/Al in the presence of POE surfactant was studied by changing the Si/Al ratio from 45 to 80. Naphtha was simulated using a model compound, n-hexane. Excellent selectivity toward propylene was obtained over ZSM-22 zeolite crystals in n-hexane cracking. High selectivity to propylene was maintained over different size of ZSM-22 zeolite crystals. Decreasing crystal length from 300 to 90 nm considerably increased the catalytic activity of ZSM-22 crystals.
DOI	10.1016/j.jaap.2014.09.023