- 教授
- 博士生导师
- 硕士生导师
- 电子邮箱：
- 入职时间：1997-08-01
- 学历：博士研究生毕业
- 性别：男
- 学位：博士
- 在职信息：返聘
- 毕业院校：名古屋大学
- 所属院系：化学工程与技术学院
- 学科：化学工程与技术
55：Title:
Predicting the viscosity of biodiesel fuels based on the mixture topological index method
Source:
FUEL 86 (12-13): 1849-1854 AUG 2007
Document Type:
Article
Language:
English
Cited References: 17 Times Cited: 0
Abstract:
To predict the viscosity of any given biodiesel fuel (FAME mixture), a novel topological index based on the distance matrix and adjacent matrix of the molecular structure is proposed. The new topological index can reflect the information of the molecular structure for fatty acid methyl ester (FAME), such as the size of molecular, unsaturated bond and branch degree. Combined with the modified Grunberg-Nissan or Hind equation, the topological index values of the FAME mixture were calculated. Then, relates the topological index values of the FAME mixtures with the viscosities of them, two linear regression equations were obtained. Using these regression equations, the viscosity of biodiesel fuels were predicted. The results show the modified Grunberg-Nissan equation with a higher precision of prediction than the Hind equation regression equation. (c) 2007 Published by Elsevier Ltd.
Author Keywords:
biodiesel; FAME; mixture topological index; viscosity; structure and property
KeyWords Plus:
PERFORMANCE; ESTERS
Addresses:
Yang BL (reprint author), Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
E-mail Addresses:
blunyang@mail.xjtu.edu.cn
Publisher:
ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Subject Category:
Energy & Fuels; Engineering, Chemical
IDS Number:
202CW
ISSN:
0016-2361
54：Title:
Synthesis of diethyl carbonate by catalytic alcoholysis of urea
Author(s):
Wang DP (Wang, Dongpeng), Yang BL (Yang, Bolun), Zhai XW (Zhai, Xiaowei), Zhou LG (Zhou, Leigao)
Source:
FUEL PROCESSING TECHNOLOGY 88 (8): 807-812 AUG 2007
Document Type:
Article
Language:
English
Cited References: 17 Times Cited: 0
Abstract:
The production of diethyl carbonate (DEC) from urea and ethanol was investigated in a batch process. The catalytic activities of many metal oxides were evaluated, the influences of various operation conditions on the DEC yield were explored, and the catalytic mechanism was also analyzed. Among the tested catalysts, ZnO showed the best catalytic activity toward DEC synthesis. The optimum reaction conditions were as follows: ethanol/urea molar ratio of 10, catalyst concentration of 6%, reaction temperature of 463 K, reaction time of 5 h and the reaction pressure of 2.5 MPa, respectively. The highest DEC yield was 14.2%. The reaction of producing N-ethyl ethyl carbamate (N-EEC) was the main side reaction in this process, which consumed both ethyl carbamate and DEC. It is necessary to remove DEC from the reactor as quickly as possible. (C) 2007 Elsevier B.V. All rights reserved.
Author Keywords:
diethyl carbonate; urea; alcoholysis; metal oxide
KeyWords Plus:
DIMETHYL CARBONATE; METHANOL; MONOXIDE; ETHANOL
Addresses:
Yang BL (reprint author), Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
E-mail Addresses:
blunyang@mail.xjtu.edu.cn
Publisher:
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category:
Chemistry, Applied; Energy & Fuels; Engineering, Chemical
IDS Number:
191SP
ISSN:
0378-3820
53.Title:
Complex reactions of hydration and etherification of isobutene over La-modified beta molecular sieve
Document Type:
Article
Language:
Chinese
Cited References: 10 Times Cited: 0
Abstract:
The La/beta molecular sieve catalyst was prepared by the ion-exchange method using microwave heating and conventional heating. The catalyst was characterized by infrared spectroscopy, scanning electron microscopy, X-ray, diffraction, and energy dispersive spectroscopy. Hydration and etherification reactions of isobutylene with an ethanol-water mixture to produce a fuel mixture were carried out over these catalysts. The effects of the preparation method and La loading on the catalytic performance of La/beta catalysts were studied, and the reaction mechanism was proposed. The results indicated that the ion-exchange degree and La loading of the La/beta catalyst prepared by the microwave heating method were higher than the one prepared by the conventional heating method, and the ion-exchange time was shorter. The conversion of water and ethanol over the modified La/beta molecular sieve catalyst was increased by 10% similar to 20% compared with the unmodified H beta molecular sieve, and the catalyst activity increased with the La loading. The hydration and the etherification mainly occurred on the external surface of the beta molecular sieve catalyst. Bridging Al-OH-Si acid sites, i.e., Bronsted acid sites, were the main active sites, and the carbonium ion was formed during the reaction.
Author Keywords:
beta molecular sieve; lanthanum; isobutene; ethanol; water; hydration etherification; microwave heating
KeyWords Plus:
MICROWAVE IRRADIATION; ION-EXCHANGE; ETHANOL; ZNCL2
Addresses:
Yang BL (reprint author), Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi Peoples R China
E-mail Addresses:
blunyang@mail.xjtu.edu.cn
Publisher:
SCIENCE CHINA PRESS, 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
Subject Category:
Chemistry, Applied; Chemistry, Physical; Engineering, Chemical
IDS Number:
139JX
ISSN:
0253-9837
52.Title:
Modeling and optimization for the secondary reaction of FCC gasoline based on the fuzzy neural network and genetic algorithm
Author(s):
Wang ZW (Wang, Zhiwen), Yang BL (Yang, Bolun), Chen C (Chen, Chun), Yuan J (Yuan, Jun), Wang LY (Wang, Longyan)
Source:
CHEMICAL ENGINEERING AND PROCESSING 46 (3): 175-180 MAR 2007
Document Type:
Article
Language:
English
Cited References: 15 Times Cited: 0
Abstract:
The secondary reaction of fluidized-bed catalytically cracked gasoline (FCC gasoline) was investigated experimentally with a riser reactor using an improved Y zeolite catalyst in different operating conditions. The product distributions were predicted using a new black-box model based on fuzzy neural network (FNN) combined with genetic algorithm (GA) named FNN-GA method. In this new approach, the fuzzy neural network model is constructed for correlating the values of input, namely feedstock components, operating variables with output, namely the yields of upgraded gasoline and the olefin fraction in it. And then, the inputs of operating variables are optimized using genetic algorithm with a view to maximize yields of upgraded gasoline and the restricting of olefin in the product gasoline. This new FNN-GA modeling and optimization can be conducted completely from the experimental data wherein the complicated knowledge of the reaction mechanisms, kinetics, mass and heat transfer are not required. Using artificial neural network (ANN)-GA strategy, a set of optimized operation conditions leading to maximized yields upgraded gasoline with olefin restrict for different feedstock were obtained. The experimental. results agreed well with the predicted ones and a significant improvement in the upgraded gasoline product were gained under the optimized operating conditions. (c) 2006 Elsevier B.V. All rights reserved.
Author Keywords:
process modeling; optimization; gasoline secondary reaction; fuzzy neural network; genetic algorithm
KeyWords Plus:
UNIT
Addresses:
Yang BL (reprint author), Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
E-mail Addresses:
blunyan@mail.xjtu.edu.cn
Publisher:
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Subject Category:
Energy & Fuels; Engineering, Chemical
IDS Number:
130CU
ISSN:
0255-2701
51
：
Title:
In vivo optimizing of intracellular production of heterologous protein in Pichia pastoris by fluorescent scanning
Source:
ANALYTICAL BIOCHEMISTRY 357 (2): 232-239 OCT 15 2006
Document Type:
Article
Language:
English
Cited References: 47 Times Cited: 0
Abstract:
Specific monitoring of recombinant protein titer in DNA recombinant biotechnology traditionally has relied on SDS-PAGE, Western blotting, or bioactivity-based assays, but these are labor-intensive, time-consuming, and destructive and are not a good choice for the optimization of recombinant protein production. We describe a study in which enhanced green fluorescence protein (EGFP) was fused to the C terminus of a model protein glutathione S-transferase (GST) to optimize the chimeric protein production in Pichia pastoris by measurements of fluorescence of living cells in a 96-well microtiter plate using simple fluorescent scanning. Several common factors (e.g., time course of expression, effect of methanol concentration, frequency of methanol addition, medium pH) were tested using this strategy. Western blotting assay showed that the correct full-length GST-EGFP chimeric protein was expressed intracellularly in P. pastoris. The fluorescence intensity and GST bioactivity of cell extract yielded a direct correlation. The results show that the reported method provides an attractive platform for the optimization of recombinant protein production in vivo in real time as well as handling at least 96 samples in parallel. (c) 2006 Elsevier Inc. All rights reserved.
Author Keywords:
recombinant protein; gene expression; optimization; enhanced green fluorescence protein; Pichia pastoris
KeyWords Plus:
GLUTATHIONE S-TRANSFERASES; MONOCLONAL-ANTIBODY PRODUCTION; GENE-EXPRESSION; FUSION PROTEINS; ELECTROCHEMILUMINESCENT DETECTION; QUANTITATIVE REPORTER; OPTICAL BIOSENSOR; MAMMALIAN-CELLS; YEAST; PURIFICATION
Addresses:
Zhang YD (reprint author), Shaanxi Normal Univ, Sch Chem & Mat Sci, Xian, 710062 Peoples R China
Shaanxi Normal Univ, Sch Chem & Mat Sci, Xian, 710062 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
Shaanxi Normal Univ, Sch Chem & Mat Sci, Xian, 710062 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
E-mail Addresses:
ydzhang@snnu.edu.cn
Publisher:
ACADEMIC PRESS INC ELSEVIER SCIENCE, 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
Subject Category:
BIOCHEMICAL RESEARCH METHODS; BIOCHEMISTRY & MOLECULAR BIOLOGY; CHEMISTRY, ANALYTICAL
IDS Number:
092DS
50
：
Title:
Removal of H2S by Thiobacillus denitrificans immobilized on different matrices
Source:
BIORESOURCE TECHNOLOGY 97 (16): 2041-2046 NOV 2006
Document Type:
Article
Language:
English
Cited References: 13 Times Cited: 0
Abstract:
Biological removal of high concentrations of H2S was studied using the immobilized Thiobacillus denitrificans with peat moss, wood chip, ceramic and granular activated carbon (GAC) separately. Experiments on the physical adsorption capacity of matrix, retention time and pressure drop were carried out; the ability of bioreactor to buffer shock loading and the removal efficiency with different packing materials were also investigated. Besides, the kinetics of single-stage biodesulfuration was analyzed. The results showed that GAC provided higher bacteria adsorption capacity, showed a more resistance to shock loading and allowed better operational control with respect to pressure drop than other inert carriers. When the retention time was changed from 30 to 100 s at an influent concentration of 100 mg/ L of H2S, the removal efficiencies were above 98%; when the inlet concentration of H2S were changed from 110 to 120 mg/L, an average 96.8% removal efficiency was achieved during the long-term operation for GAC bioreactor. Next to GAC, wood chip was found to be a good packing material; however, peat moss and ceramic had limited effectiveness and their removal efficiencies were less of 90%. The kinetic analysis showed that the maximum removal rate and the half-saturation constant of the GAC bioreactor were 666.7 mg (H2S)/(L (.) d) and 20.8 mg/L, respectively. (c) 2005 Elsevier Ltd. All rights reserved.
Author Keywords:
immobilized-cells bioreactor; H2S; peat moss; wood chip; ceramic; granular activated carbon
KeyWords Plus:
GAS; BIOFILTERS; EMISSIONS; AMMONIA; FILTER
Addresses:
Yang BL (reprint author), Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
NW Univ Xian, Sch Life Sci, Xian, 710069 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
NW Univ Xian, Sch Life Sci, Xian, 710069 Peoples R China
E-mail Addresses:
blunyang@mail.xjtu.edu.cn
Publisher:
ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Subject Category:
AGRICULTURAL ENGINEERING; BIOTECHNOLOGY & APPLIED MICROBIOLOGY; ENERGY & FUELS
IDS Number:
075IR
ISSN:
0960-8524
49
：
Title:
Novel Cu flower-like nanostructures synthesized from a solid-stabilized emulsion approach
Source:
MATERIALS CHEMISTRY AND PHYSICS 99 (2-3): 295-299 OCT 10 2006
Document Type:
Article
Language:
English
Cited References: 33 Times Cited: 0
Abstract:
Novel Cu nanostructures were synthesized by a solid-stabilized emulsion route. The products were characterized with scanning electron microscope (SEM), X-ray diffraction (XRD), energy dispersion spectrum (EDS) and size analysis. The SEM images showed that the Cu nanostructures were flower-like and made up of petals with an average thickness of about 90 nm. The XRD trace showed that the Cu nanostructures were of face-centered cubic lattice. The EDS analysis indicated that only a few of the Cu atoms in the nanostructures were oxidized, though no protective reagents were used in the synthesis procedure. A solid-solution-solid mechanism for the formation of the Cu flower-like nanostructures was discussed. (c) 2005 Elsevier B.V. All rights reserved.
Author Keywords:
metals; nanostructures; chemical synthesis
KeyWords Plus:
COPPER NANOPARTICLES; CARBON NANOTUBES; SURFACE; SILVER; REDUCTION; PARTICLES; SYSTEM; GROWTH; GOLD
Addresses:
He YJ (reprint author), Xian Univ Sci & Technol, Dept Chem & Chem Engn, Xian, 710054 Peoples R China
Xian Univ Sci & Technol, Dept Chem & Chem Engn, Xian, 710054 Peoples R China
NW Univ Xian, Dept Chem, Xian, 710069 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
Xian Univ Sci & Technol, Dept Chem & Chem Engn, Xian, 710054 Peoples R China
NW Univ Xian, Dept Chem, Xian, 710069 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
E-mail Addresses:
yongjhe@yahoo.com.cn
Publisher:
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Subject Category:
MATERIALS SCIENCE, MULTIDISCIPLINARY
IDS Number:
087XE
ISSN:
0254-0584
48: Title:
Reactive rectifying for producing dimethyl carbonate
Source:
CHEMICAL ENGINEERING JOURNAL 122 (1-2): 15-20 SEP 1 2006
Document Type:
Article
Language:
English
Cited References: 21 Times Cited: 0
Abstract:
A process for producing dimethyl carbonate (DMC) from methanol and urea, using polyphosphoric acid (PPA) as the catalyst, has been carried out by conducting the reaction continuously under reactive rectifying conditions on a laboratory scale. Several operational variables which have an influence on the yield of DMC, such as the total feed flow rate, bottom temperature, pressure, reflux ratio, mass ratio of the reactants, the concentration of the catalyst and the stirring speed, were investigated to achieve an optimum operation. Under these optimized settings, the highest yield of DMC obtained was 92.2%. A high concentration and purity of DMC in the overhead products, more than 17%, was gained in the reactive rectifying conditions. (c) 2006 Published by Elsevier B.V.
Author Keywords:
reactive rectifying; dimethyl carbonate; polyphosphoric acid; urea; methanol
KeyWords Plus:
METHANOL; UREA; CATALYSIS
Addresses:
Yang BL (reprint author), Xian Jiaotong Univ, State Key Lab Multiphase Flow Power Engn, Dept Chem Engn, Xian, 710049 Peoples R China
Xian Jiaotong Univ, State Key Lab Multiphase Flow Power Engn, Dept Chem Engn, Xian, 710049 Peoples R China
Xian Jiaotong Univ, State Key Lab Multiphase Flow Power Engn, Dept Chem Engn, Xian, 710049 Peoples R China
E-mail Addresses:
blunyang@mail.xjtu.edu.cn
Publisher:
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Subject Category:
ENGINEERING, CHEMICAL
IDS Number:
085EK
ISSN:
1385-8947
47 Title: Preparation of CeO2/ZnO nanostructured microspheres and their catalytic properties
Source:
POWDER TECHNOLOGY 166 (2): 72-76 AUG 21 2006
Document Type:
Article
Language:
English
Cited References: 12 Times Cited: 0
Abstract:
CeO2/ZnO nanostructured microspheres with an average diameter of about 3.8 mu m were synthesized by a solid-stabilized emulsion route. The CeO2/ZnO nanostructured microspheres were characterized with SEM, XRD, CO2-TPD, BET measurement and size analysis. Based on the oxidative coupling reaction of methane with carbon dioxide as an oxidant, the catalytic performance of the CeO2/ZnO nanostructured microspheres was evaluated and compared with that of the CeO2/ZnO nanoparticles. The results showed that the surfaces of the CeO2/ZnO nanostructured microspheres consisted of petal-like structures with a petal thickness of about 90 nm and a petal depth of 0.4 mu m to 0.9 mu m. Using CeO2/ZnO nanostructured microspheres as catalysts for the oxidative coupling of methane with carbon dioxide, the conversion of methane corresponded with that using the CeO2/ZnO nanoparticles, while the CeO2/ZnO nanostructured microspheres had much longer operating life. (c) 2006 Elsevier B.V All rights reserved.
Author Keywords:
nanostructures; solid-stabilized emulsion; methane; carbon dioxide; nanocatalysts
KeyWords Plus:
CARBON-DIOXIDE; C-2 HYDROCARBONS; METHANE; CONVERSION; OXIDES
Addresses:
He YJ (reprint author), Xian Univ Sci & Technol, Dept Chem & Chem Engn, Xian, 710054 Peoples R China
Xian Univ Sci & Technol, Dept Chem & Chem Engn, Xian, 710054 Peoples R China
NW Univ Xian, Dept Chem, Xian, 710069 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
Xian Univ Sci & Technol, Dept Chem & Chem Engn, Xian, 710054 Peoples R China
NW Univ Xian, Dept Chem, Xian, 710069 Peoples R China
Xian Jiaotong Univ, Dept Chem Engn, Xian, 710049 Peoples R China
E-mail Addresses:
yongjhe@yahoo.com.cn
Publisher:
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Subject Category:
ENGINEERING, CHEMICAL
IDS Number:
075ET
ISSN:
0032-5910
