Baozeng Ren
Zhengzhou University
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Publication
Featured researches published by Baozeng Ren.
Chinese Journal of Chemical Engineering | 2014
Fei-xiong Chen; Ming-rui Zhao; Lu Feng; Baozeng Ren
Abstract The solubility data of diosgenin in mixed systems of ethanol+1-propanol (1:1), ethanol+1-butanol (1:1), ethanol+isobutyl alcohol (1:1), methanol+isobutyl alcohol (1:1), methanol+isobutyl alcohol (1:4), ethanol+1-pentanol (1:1) and carbon tetrachloride were measured over the temperature range from 289.15 K to 334.15 K by a laser monitoring observation technique at atmospheric pressure, with all mixtures mixed by volume ratio. The Apelblat equation, the ideal solution model, and the λh equation are used to correlate the solubility data. The results show that the three models agree well with the experimental data, providing essential support for industrial design and further theoretical study.
Computer-aided chemical engineering | 2012
Yanjie Chen; Yuehua Yao; Xiangping Zhang; Chunshan Li; Haifeng Dong; Ying Huang; Baozeng Ren
Blended amine solvent has been shown unique and predominant performance while used to capture CO2 compared with the single amine solvent. Calculations were compared with experimental solubility measurements of CO2 in aqueous ternary and quaternary systems of H2O, MEA and AMP. Electrolyte non-random two liquid (ENRTL) theory was employed to fit solubility data in three ternary systems CO2-H2O-MEA and CO2-H2O-AMP. The binary interaction energy parameters for the ionic species were obtained by regression of the experimental solubility data of the ternary systems. A good agreement between the calculated values and the experimental data was achieved. Process simulation for CO2 removal using an equilibrium approach was performed with newly fitted parameters. The simulation results have been compared with the pilot plant experimental data.
Polish Journal of Chemical Technology | 2018
Qiong Liu; Tao Li; Shaowen Zhang; Lingbo Qu; Baozeng Ren
Abstract A novel effi cient adsorbent, alkali-pretreated Paeonia ostii seed coats (AP-PSC), was investigated for the removal of methylene blue (MB) dye from solution. Orthogonal array design was applied to optimize the process parameters viz. alkali concentration, liquid-solid ratio (LSR) and pretreatment time. The results revealed that the optimal pretreatment conditions were at 0.8% (w/w) NaOH with LSR of 0.35 L g-1 treating for 50 min. Equilibrium and kinetic studies indicated that Langmuir isotherm and Pseudo-second-order models described the experimental data well. The maximum adsorption capability was of 368.2 mg g-1 for MB at 25oC. Thermodynamic parameters suggested that the AP-PSC adsorption process was physical, endothermic and spontaneous. Furthermore, the adsorption process was infl uenced by several interactive mechanisms, including ion-exchange, as well as Van der Waals forces and hydrogen bonds that occur concomitantly. It was concluded that AP-PSC may be potential as an effi cient adsorbent to remove MB from solution.
Chinese Journal of Chemical Engineering | 2014
Tao Li; Feixiong Chen; Zhenxi Jiang; Baozeng Ren
Abstract The solubility of D-xylose in formic acid and binary solvents of formic acid with formic acid and acetic acid, propionic acid, n -butyric acid or isobutyric acid was measured in the temperature range from 300.35 to 325.05 K using the synthetic method by a laser monitoring technique at atmospheric pressure. The solid-liquid equilibrium data will provide essential support for industrial design and further theoretical study. The experimental data show that the solubility of D-xylose in formic acid and in the mixtures of formic acid + acetic acid (1 : 1), formic acid + propionic acid (1 : 1), formic acid + n -butyric acid (1 : 1), and formic acid + isobutyric acid (1 : 1) increases with temperature. The Apelblat equation, the λ h model, and the ideal solution equation correlate the solubility data well.
Fluid Phase Equilibria | 2014
Fan Xu; Hongshuai Gao; Haifeng Dong; Zhanli Wang; Xiangping Zhang; Baozeng Ren; Suojiang Zhang
Fluid Phase Equilibria | 2012
Tao Li; Zhenxi Jiang; Feixiong Chen; Baozeng Ren
The Journal of Chemical Thermodynamics | 2015
Yanmin Shen; Zhenfeng Liu; Tao Li; Baozeng Ren
The Journal of Chemical Thermodynamics | 2013
Tao Li; Yu Li; Yan-hong Li; Baozeng Ren
Fluid Phase Equilibria | 2010
Yu Li; Fu-an Wang; Li Xu; Hai-hong Jin; Baozeng Ren
Journal of Chemical & Engineering Data | 2010
Yu Li; Li Xu; Fu-an Wang; Hai-hong Jin; Baozeng Ren