Bluestar Beijing Chemical Machinery Co.

Beijing, China

Bluestar Beijing Chemical Machinery Co.

Beijing, China

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Zhang L.,Shenyang University of Chemical Technology | Dai J.,Shenyang University of Chemical Technology | Liu X.-M.,Bluestar Beijing Chemical Machinery Corporation Ltd | Liu G.-Z.,Bluestar Shenyang Research Institute of Light Industry Machinery | Liu Y.-Y.,Shenyang University of Chemical Technology
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | Year: 2017

Experimental setup of an ion-exchangemembrane electrolysis cell from chlor-alkali industry was established to validate simulation results. Liquid velocity and gas holdup in the electrolysis cell were measured and the simulation results were verified. Gas holdup and gas volume fraction distribution in the anode chamber of the electrolysis cell under different operation conditions were investigated experimentally and numerically. The instantaneous pressure signals at the top of thecircular plate near the membrane were monitored and analyzed. The results show that gas holdup increases and gas retention layer at the top of the electrolysis cell becomes thicker with the increase of gas and liquid flow rates. The value of gas holdup reaches to 9.08% at current density of 10 kA×m-2, which is nearly three times higher than that at 4.5 kA×m-2. The gas volume fraction increases along the vertical direction of the electrolysis cell and reaches to maximum at membrane corner and channel plate. Pressure signals at the top of the circular plate near the membrane fluctuate obviously.The higher frequency fluctuation of the pressure signals is mainly caused by liquid flow, while the lower ones are caused mainly by gas flow. © 2017, Editorial Board of “Journal of Chemical Engineering of Chinese Universities”. All right reserved.


Huang Y.,China Institute of Metrology | Gao Y.,China Institute of Metrology | Zhang H.,China Institute of Metrology | Li B.,Bluestar Beijing Chemical Machinery Co.
Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology | Year: 2013

Global positioning system (GPS) common/all-view method is currently international hot technology for long-distance time and frequency transfer, and it is also one of the main tools. Its core is the GPS time transfer receiver and post-processing algorithms. The high real-time multi-channel GPS time transfer receiver based on EURO-160 GPS board and the real-time data processing algorithms are introduced in this paper. To verify the accuracy, the experiments of common clock and non-common clock on zero-based line with the foreign commercial GPS P3 code receivers are carried out. Results show that the high real-time GPS receiver and the foreign commercial GPS P3 code receiver have the same technology level.


Yue W.,Shenyang University of Chemical Technology | Zhang L.,Shenyang University of Chemical Technology | Liu X.,Bluestar Beijing Chemical Machinery Co. | Liu G.,Bluestar Shenyang Research Institute of Light Industry Machinery | Liu Y.,Shenyang University of Chemical Technology
Huagong Xuebao/CIESC Journal | Year: 2015

To investigate the influence of current density on transfer characteristics in the electrolysis cell of chlor-alkali industry, the fluid flow, heat and mass transfer of anode chamber at different current densities were simulated numerically using computational fluid dynamics software. The distributions of velocity, temperature and concentration in a grille of the anode chamber were obtained. Taking liquid circulation rate, maximum velocity near the membrane, temperature and concentration at the membrane surface as indices, the performance of the electrolysis cell at different current densities was evaluated. Liquid circulation rate and temperature of membrane surface increased and concentration of brine decreased with increasing current density. Under typical working conditions for current density of 4.5 kA·m-2, average temperature of the electrolysis cell and of the membrane surface were 86.39℃ and 87.40℃, respectively. Average temperatures of the electrolysis cell and the membrane surface could be maintained at the values of the typical working conditions by lowering inlet temperature of brine when current density increased. ©, 2015, Chemical Industry Press. All right reserved.


Cao Y.-L.,Beijing University of Chemical Technology | Li Z.-L.,Beijing University of Chemical Technology | Wang F.,Beijing University of Chemical Technology | Liu J.-J.,Beijing University of Chemical Technology | And 4 more authors.
Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica | Year: 2013

A simple galvanostatic electrodeposition method was used to synthesize an active Ni-Sn electrode on a Cu foil substrate. Characterization by high-resolution transmission electron microscopy (HRTEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD) revealed that the crystal structures of the deposited films transformed from amorphous structures composed of Ni crystal embryos and amorphous Ni-Sn to Ni3Sn4/Ni3Sn2 mixed crystals with increasing Sn content. Scanning electron microscope (SEM) images indicated that the amorphous Ni-Sn electrode possessed a smooth surface with uniform distribution of small particles, whereas the Ni3Sn4/Ni3Sn2 mixed crystalline electrode exhibited a rough surface composed of lamellar structures. The polarization curves measured in 1 mol· L 1 NaOH solution at 25 ° C indicated that the amorphous Ni-Sn electrode showed a smaller overpotential (85 mV) and better electrocatalytic performance for hydrogen evolution than the mixed crystalline electrode. Electrochemical impedance spectroscopy (EIS) results showed that the hydrogen evolution reaction occurs on the Ni-Sn alloy electrode under a mixture of Volmer and Heyrovsky control. The higher activity of the amorphous Ni-Sn electrode was attributed to the faster charge transfer and electrochemical adsorption and desorption rates of hydrogen atoms compared with those on the mixed crystalline electrode. © Editorial office of Acta Physico-Chimica Sinica.


Liu Z.,Beijing University of Chemical Technology | Li Z.,Beijing University of Chemical Technology | Wang F.,Beijing University of Chemical Technology | Liu J.,Beijing University of Chemical Technology | And 5 more authors.
Materials Letters | Year: 2011

Multi-walled carbon nanotube (MWCNT) supported nickel (Ni) catalysts were chemically synthesized via a hydrazine reduction process with addition of cetyltrimethylammonium bromide (CTAB) as a special additive. As evidenced by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and highrevolution transmission electron microscope (HR-TEM), the Ni nanoparticles (NPs) deposited on the sidewalls of MWCNTs were found to be face-centric cubic (fcc) crystal structure, and dispersed homogenously with a sharp particle size distribution centered at around 20 nm of diameter. Electro-oxidation of ethanol on MWCNT/Ni catalysts was investigated by cyclic voltammetry (CV) measurement. The MWCNT/Ni catalysts showed excellent electro-catalytic activity for the oxidation of ethanol in alkaline solution. © 2011 Elsevier B.V. All rights reserved.


Nie P.,Shenyang Aerospace University | Dong H.,Shenyang Aerospace University | Li Z.-Q.,Shenyang Aerospace University | Gao H.,Shenyang Aerospace University | Li B.,Bluestar Beijing Chemical Machinery Co.
Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology | Year: 2013

End effect, stop standard and artificial components of empirical mode decomposition (EMD) are improved in this paper, and the contrast test of simulation signal verifies the feasibility of the improved method. Acoustic emission signals were collected in the cutting process and the improved empirical mode decomposition method was used to decompose them into a series of intrinsic mode function components. Artificial components that were produced in the decomposition were then removed according to correlation coefficients of the IMF components and original signal, and normalized energy of the IMF components was extracted as characteristic vector. The characteristic vector was divided into two groups: one group was used to train the least squares support vector machine and the other was used to identify the tool wear state. The experiment result shows that it can effectively characterize tool wear states.


Cao Y.,Beijing University of Chemical Technology | Liu J.,Beijing University of Chemical Technology | Wang F.,Beijing University of Chemical Technology | Ji J.,Beijing University of Chemical Technology | And 3 more authors.
Materials Letters | Year: 2010

Tailoring of nickel-sulfur (Ni-S) intermetallic compound film electrodes for hydrogen evolution reaction in alkaline solutions was attempted by electrodeposition from a typical Watts bath containing sodium thiosulfate as sulfur source and sulfosalicylic acid as additive. The XRD analysis shows that the as-deposited Ni-S film electrode with fine morphological features comprised of intermetallic compound phase structure and amorphous phase structure. The intermetallic compound film electrodes generate a higher catalytic activity for the hydrogen evolution reaction in alkaline solution in comparison with Ni-S film electrodes comprised of amorphous phase structures, even with commercial Ni mesh or Ni/RuO2 composite electrode. © 2009 Elsevier B.V. All rights reserved.


Liang H.,University of Science and Technology Beijing | Tong C.-N.,University of Science and Technology Beijing | Wang H.,Bluestar Beijing Chemical Machinery Co.
Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology | Year: 2012

The thickness of the rolling mill mechanism model does not gradually satisfy the current control accuracy requirements, therefore, a modeling and control method based on the data driven of strip thickness is presented. In this method, the subtractive clustering is adopted to divide the input space into several clusters. Least square support vector machine (LS-SVM) is utilized to estimate the model of the nonlinear system and forecast the output value in each cluster subset. The linear predictive control algorithm is used to implement the predictive control. The global control values are obtained by weighted strategy of the controllers. Numerical simulations show the effectiveness of the proposed method.


Patent
Bluestar Beijing Chemical Machinery Co. | Date: 2016-10-26

Disclosed is an ion exchange membrane electrolytic cell, comprising an anode chamber and a cathode chamber; a gas-liquid separation chamber is arranged in the anode chamber and/or the cathode chamber; the gas-liquid separation chamber is partially located inside the anode chamber and/or the cathode chamber; a first portion of the gas-liquid separation chamber, which is configured to accommodate liquid, is arranged inside the anode chamber and/or the cathode chamber; and a second portion of the gas-liquid separation chamber, which is configured to accommodate gas, is disposed outside of the anode chamber and/or the cathode chamber. The ion exchange membrane electrolytic cell is provided with the gas-liquid separation chamber partially located inside the anode chamber and/or the cathode chamber, and the gas-liquid channel is raised to the top of the gas-liquid separation chamber such that the area of the ion exchange membrane and the area of the cathode grid and the anode grid are utilized sufficiently, that is to say, the electrolysis areas of the cathode pole and the anode pole are increased , thereby improving the yield of the ion exchange membrane electrolytic cell. On the other hand, the products of electrolysis can be drained rapidly.

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