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	1. Effluence of modification on the deep desulfurization behavior of NaY and Na13X zeolite for thiophene
	LIAO Junjie,Liu Yang,Bao Lei,Chang Liping,Bao Weiren
	Chemical Engineering 05 August 2016
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:NaY and Na13X zeolites were modified by different modification manners, which are H+ modification, metal ion (copper, nickel or cerium ions) modification and H+ modification followed by metal ion modification, to prepare series of sorbents. The properties of these sorbents were measured by XRD, N2 adsorption and SEM/EDS. The desulfurization activity of these sorbents was evaluated in a model gasoline made of thiophene and cyclohexane, and the results were compared to investigate the effect of preparation methods on adsorption desulfurization behavior. The results show that H+ modification or metal ion modification could all improve the desulfurization efficiency of both NaY and Na13X zeolites, however, for Na13X, after modified by copper or nickel ions, its crystal structure was destroyed, and thus the desulfurization efficiency is much lower than before. The desulfurization activity of the sorbents prepared via H+ modification followed by metal ion modification is higher than that of sorbents prepared by single H+ modification or metal ion modification because pre-modification by H+ can increase the metal content, specific surface and pore volume of sorbent in the following metal ion modification process. Compared with Na13X, NaY is more suitable for H+ modification followed by metal ion modification. Among those prepared sorbents, the CuHY sorbent prepared via NaY modified via H+ and followed by copper ion, has the highest desulfurization efficiency at room temperature.
	TO cite this article:LIAO Junjie,Liu Yang,Bao Lei, et al. Effluence of modification on the deep desulfurization behavior of NaY and Na13X zeolite for thiophene[OL].[ 5 August 2016] http://en.paper.edu.cn/en_releasepaper/content/4701979

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