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	1. Molecule simulation for the feedstock of FCC gasoline secondary reactions by SOL combined with MC method
	Chen Chun,Yang Bolun,Yuan Jun
	Chemical Engineering 18 January 2008
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	Abstract:For the sake of reducing the olefin content and upgrading quality of FCC gasoline, the gasoline feedstock will pass through series of secondary reactions in a riser reactor. In order to completely analyze this process in theory, the properties of feedstock should be simulated in the molecule level. In this work, the feedstock was converted as molecule vector matrix by Structure Oriented Lumping (SOL), and the Monte Carlo (MC) method was employed to produce each molecule vector. Three samples of catalytic cracking gasoline which were taken from the industrial FCC units of China have been used to test the usefulness of proposed simulation method, and the properties of these samples were predicted. The predicted results agreed well with the feedstock analytical data.
	TO cite this article:Chen Chun,Yang Bolun,Yuan Jun. Molecule simulation for the feedstock of FCC gasoline secondary reactions by SOL combined with MC method[OL].[18 January 2008] http://en.paper.edu.cn/en_releasepaper/content/18215


	2. Highly Enantioselective HPLC Separation of 5-Methyl-5-phenylhydantoin on the Norvancomycin-bonded Chiral Stationary Phase
	Yang Yiwen,Su Baogen,San Hanwen,Ren Qilong
	Chemical Engineering 15 February 2007
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	Abstract:Enantiomers of 5-Methyl-5-phenylhydantoin (MPH) were separated on norvancomycin chiral stationary phase (NVC-CSP), which was prepared by covalently linking norvancomycin to acid-treated silica gel. Three mobile phase modes have been investigated: reversed phase, polar organic mode, and normal phase. MPH may be enantioseparated under the reversed phase and polar organic mode. There is no enantioseparation under the normal phase. The effects of composition, column temperature, pH, and flow rate of mobile phase on the enantioseparation were investigated. The enantioseparation by methanol/2% TEAA (pH 5.5) 10/90 at the flow rate 0.6 ml/min and 20篊 is excellent. The hydrophobic interactions and hydrogen bonding are the dominant interactions on enantioseparations between the analyte and macrocycle in this chromatographic system.
	TO cite this article:Yang Yiwen,Su Baogen,San Hanwen, et al. Highly Enantioselective HPLC Separation of 5-Methyl-5-phenylhydantoin on the Norvancomycin-bonded Chiral Stationary Phase[OL].[15 February 2007] http://en.paper.edu.cn/en_releasepaper/content/11167

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