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Vol. 47 n°12 Juin 2008 |
Vol. 47 n°11 Juin 2008 |
Vol. 47 N°17 Septembre 2008 |
Vol. 47 n°14 Juillet 2008 |
Vol. 47 n°15 Août 2008 |
Vol. 47 n°16 Août 2008 |
Vol. 47 N°18 Septembre 2008 |
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| Titre : | Industrial & engineering chemistry research, Vol. 47 n°14 - Juillet 2008 |
| Type de document : | Bulletin : texte imprimé |
| Paru le : | 14/09/2008 |
| Année de publication : | 2008 |
| Format : | p. 4561-4970 / ill. / 28 cm. |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| En ligne : | http://pubs.acs.org/toc/iecred/47/14 |
Dépouillements
Article : texte imprimé
Tsunetake Seki, Auteur ;
Jan-Dierk Grunwaldt, Auteur ;
Alfons Baiker, Auteur
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Heterogeneous catalytic hydrogenation of organic compounds in supercritical fluids (SCFs) is reviewed, covering the work published up to 2007. The potential as well as limitations of the application of SCFs as solvents are examined based on the [...]
Article : texte imprimé
Saurav Datta, Auteur ;
Caitlyn Cecil, Auteur ;
Bhattacharyya, D., Auteur
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This research work was directed toward the development of highly active, stable, and reusable functionalized polymeric membrane domains for enzymatic catalysis. Functionalized membranes were created by two different approaches. In the first appr[...]
Article : texte imprimé
Investigation of levulinic acid distribution from aqueous phase to organic phase with TOA extractant
Hasan Uslu, Auteur ;
S. Ismail Kirbaslar, Auteur
|
Levulinic acid, which is a carboxylic acid with a ketone structure, is a clear to brownish semisolid; it melts at 37 C and is soluble in alcohol, ether, and chloroform. Levulinic acid can be used as an acidulant in foods and beverages. The extra[...]
Article : texte imprimé
V Devadoss, Auteur ;
C. Ahmed Basha, Auteur ;
K Jayaraman, Auteur
|
Electrochemically produced and regenerated cerium(IV) ions, by Ce3+/Ce4+, are well-known redox mediators and are used particularly as synthesis agents for the indirect oxidation of a side chain methyl group to the aldehyde group in substituted t[...]
Article : texte imprimé
Cesar A. M Abreu, Auteur ;
Douglas A Santos, Auteur ;
José A Pacífico, Auteur ;
Nelson M Lima Filho, Auteur
|
Evaluations of the methane-carbon dioxide component of a carbon reforming process over a Ni/γ-Al2O3 catalyst were performed in a fixed-bed reactor at 1023, 1073, and 1123 K. The fitting of mass balance equations, including kinetic rate laws base[...]
Article : texte imprimé
Alan G. Bussard, Auteur ;
Yogesh G. Waghmare, Auteur ;
Kerry M Dooley, Auteur ;
F Carl Knopf, Auteur
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The hydrogenation of a-methylstyrene (AMS) to cumene was investigated in a novel piston-oscillating monolith reactor (POMR). Low-frequency (0-17.5 Hz) and -amplitude (2.5 mm) mechanical oscillations were applied to the three-phase system at 46 °[...]
Article : texte imprimé
Shuyan Wang, Auteur ;
He Yurong, Auteur ;
Huilin Lu, Auteur ;
Jianmian Ding, Auteur
|
The behavior of catalytic cracking reactions of particle cluster in fluid catalytic cracking risers was numerically analyzed using a four-lump mathematical model. The effects of the cluster porosity, inlet gas velocity, and cluster formation on [...]
Article : texte imprimé
Yujun Zhao, Auteur ;
Jin Zhou, Auteur ;
Jianguo Zhang, Auteur ;
Deyi Li, Auteur
|
A Ru/Al2O3/cordierite monolithic catalyst was prepared, characterized, and examined in selective hydrogenation of benzene to cyclohexene in a monolithic fixed-bed reactor with an aqueous solution of ZnSO4. The Carberry number and Wheeler−Weisz g[...]
Article : texte imprimé
Bolun Yang, Auteur ;
Xiaowei Zhou, Auteur ;
Chun Chen, Auteur ;
Jun Yuan, Auteur
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To overcome the drawback of the traditional lumping method, a new method constructed from structure oriented lumping (SOL) combined with Monte Carlo (MC) to simulate the secondary reactions process of fluid catalytic cracking (FCC) gasoline wa[...]
Article : texte imprimé
Gi Bo Han, Auteur ;
No-Kuk Park, Auteur ;
Suk Hoon Yoon, Auteur ;
Tae Jin Lee, Auteur
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We conducted the SO2 reduction with H2 over Sn−Zr-based catalysts for the direct sulfur recovery process. The reaction temperature was varied from 250 to 550 °C while using SnO2-only, ZrO2-only, and SnO2−ZrO2 (Sn/Zr = 2/1) catalysts. The highest[...]
Article : texte imprimé
David L. Damm, Auteur ;
Andrei G. Fedorov, Auteur
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A new concept of a variable volume batch reactor, CO2/H2 active membrane piston (CHAMP), is introduced for scalable hydrogen production for portable and distributed applications. The conceptual design and operating principles of the CHAMP reacto[...]
Article : texte imprimé
Xiajing Shi, Auteur ;
Jin Luo, Auteur ;
Peter N. Njoki, Auteur ;
Yan Lin, Auteur
|
The screening of catalysts with desired catalytic activity and selectivity for electrocatalytic fuel cell reactions is a time-consuming process. One approach to address this problem is to apply combinatorial analysis techniques. In this paper, w[...]
Article : texte imprimé
Kai Wang, Auteur ;
Yangcheng Lu, Auteur ;
Huawei Shao, Auteur ;
Guangsheng Luo, Auteur
|
The selectivity of temperature-sensitive exothermal reaction, especially for a fast reaction system, is hard to control in chemical synthesis process. Traditionally, reducing the reaction temperature is applied to control byproduct. Nowadays, th[...]
Article : texte imprimé
J.N. Sahu, Auteur ;
K. Mahalik, Auteur ;
A. V. Patwardhan, Auteur ;
B. C. Meikap, Auteur
|
The present study is concerned with the methods and means to safely produce relatively small amounts (i.e., up to 50 kg/h) of ammonia. The equilibrium and kinetic study of urea hydrolysis was conducted in a semibatch reactor at atmospheric press[...]
Article : texte imprimé
Hai-Xia Wu, Auteur ;
Ting-Jie Wang, Auteur ;
Xiao Min Dou, Auteur ;
Bei Zhao, Auteur
|
An iron-aluminum-cerium trimetal hydroxide (Fe-Al-Ce) adsorbent with an acrylic-styrene copolymer latex binder, which can cross-link and cure at room temperature, was coated on sand particles by spray coating. The adhesion of the coated layer in[...]
Article : texte imprimé
Thi My Phuc Nguyen, Auteur ;
Xiaoxia Sheng, Auteur ;
Yen-Peng Ting, Auteur ;
Simo Olavi Pehkonen, Auteur
|
The corrosion behavior of AISI 304 stainless steel (SS304) in a batch system of enriched artificial seawater (EASW) in the presence of a sulfate-reducing bacteria (SRB) species (Desulfovibrio desulfuricans ATCC 27774) was investigated using anal[...]
Article : texte imprimé
Yong-Rong Dong, Auteur ;
Norikazu Nishiyama, Auteur ;
Yasuyuki Egashira, Auteur ;
Korekazu Ueyama, Auteur
|
Polymer nanospheres were synthesized through polymerization of resorcinol/formaldehyde (RF) in the presence of a basic amino acid, l-lysine, as a catalyst. The diameters of the RF polymer nanospheres can be tuned in the range of 30-650 nm by adj[...]
Article : texte imprimé
Ganesh P Sanganwar, Auteur ;
Gupta, Ram B., Auteur
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Nanoflakes of itraconazole, which is a poorly water-soluble antifungal drug, are produced using a procedure known as supercritical antisolvent solvent with enhanced mass transfer (SAS-EM). The nanoflakes show poor flowability and shelf life, eac[...]
Article : texte imprimé
Heartwin A. Pushpadass, Auteur ;
Robert W. Besant, Auteur ;
Milford A. Hanna, Auteur
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Starch and polystyrene (PS) were mixed at 70:30, 80:20, and 85:15 ratios with 0.5 and 1% talc and extruded into loose-fill packaging foams. Azodicarbonamide (ADC), at 0, 0.2, and 0.4 wt %, and citric acid, at 0, 0.25, and 0.5%, were added as blo[...]
Article : texte imprimé
Eser Eser Dinçer, Auteur ;
Halil Kalıpçılar, Auteur ;
Ali Culfaz, Auteur
|
ZSM-5-type zeolite membranes were synthesized at 130 °C on alumina supports coated with seed crystals by vacuum seeding. Compact and uniform ZSM-5 layers were formed on the support surfaces when the amount of seed was less than 1 mg/cm2. Higher [...]
Article : texte imprimé
Rafael Eustaquio-Rincon, Auteur ;
Maria Esther Rebolledo-Libreros, Auteur ;
Arturo Trejo, Auteur ;
René Molnar, Auteur
|
In this work we have used an apparatus constructed in our laboratory to systematically study the corrosion rate on metals and evaluate specialty chemical products for preventing metal corrosion in industrial plants. We performed experimental stu[...]
Article : texte imprimé
TiO2-coupled NiTiO3 nanoparticles have been prepared by coprecipitation in aqueous medium followed by sintering. Powder X-ray diffraction (PXRD) and high-resolution transmission electron microscopy (HRTEM) were used to characterize the crystalli[...]
Article : texte imprimé
Cristina Deiana, Auteur ;
Dolly Granados, Auteur ;
Rosa Venturini, Auteur ;
Alejandro Amaya, Auteur
|
Activated carbons obtained from rice husk exhibit low specific surface areas when physical activation is applied due to its high silica content. The purpose of this work was to improve textural parameters of powdered activated carbons obtained f[...]
Article : texte imprimé
Duygu Karabelli, Auteur ;
Çagri Üzüm, Auteur ;
Talal Shahwan, Auteur ;
Ahmet E. Eroglu, Auteur
|
In this study, nZVI prepared by borohydride reduction was applied for the removal of Cu2+ ions under a variety of experimental conditions. The uptake experiments investigated the effects of initial concentration, contact time, pH, and repetitive[...]
Article : texte imprimé
Herry Santoso, Auteur ;
Jie Bao, Auteur ;
Peter L. Lee, Auteur
|
Dynamic operability analysis determines the achievable control performance for a given process. Based on open-loop models, such analysis is useful in revealing controllability problems in the early process design stages. This paper presents a ne[...]
Article : texte imprimé
Zhiqiang Ge, Auteur ;
Chunjie Yang, Auteur ;
Zhihuan Song, Auteur
|
A robust online monitoring approach based on nonlinear external analysis is proposed for monitoring multimode processes. External analysis was previously proposed to distinguish faults from normal changes in operating conditions. However, linear[...]
Article : texte imprimé
Julio E. Normey-Rico, Auteur ;
Eduardo. F. Camacho, Auteur
|
This paper presents a simple and efficient solution to control first-order unstable processes with dead time. The controller is based on a simple modified structure of the Smith predictor that allows to cope with unstable processes and to tune t[...]
Article : texte imprimé
Wonhui Cho, Auteur ;
Thomas F. Edgar, Auteur
|
Single wafer rapid thermal processing (RTP) has become one of the key technologies in semiconductor manufacturing due to its faster wafer processing with reduced thermal budget and precise control of processing conditions. As the standard size o[...]
Article : texte imprimé
Li, Mingheng, Auteur
|
Axially dispersed reactors with simultaneous convection, dispersion, and reaction might be used to approximate real reactors. While the steady-state solution to an axially dispersed reactor is well-described in the literature, its dynamic behavi[...]
Article : texte imprimé
Mate Gabor, Auteur ;
Péter Mizsey, Auteur
|
The control structure design is an important step of process synthesis. This activity can be supported with controllability indices of the process to be designed. Existing methods to calculate these indices are very complicated and time consumin[...]
Article : texte imprimé
Cheng-Liang Chen, Auteur ;
Ying-Jyuan Ciou, Auteur
|
One of the main difficulties for handling heat integration problems in batch plants is the time-dependent existence of hot/cold process streams during time period p. This article aims at proposing a generic method for synthesizing an indirect he[...]
Article : texte imprimé
Chin-Shih Chen, Auteur ;
Cheng-Ching Yu, Auteur
|
Design and control of reactive distillation systems of ternary decomposition reactions with two different relative volatility rankings, IK ↔ LK + HK and HK ↔ LK + IK, have been explored. Systems with intermediate boiling reactant have a behavior[...]
Article : texte imprimé
Peter M. Verderame, Auteur ;
Christodoulos A. Floudas, Auteur
|
The operational planning and the medium-term scheduling of a multipurpose and multiproduct batch chemical plant are inter-related activities that involve the allocation of plant resources. Because of their disparate time scales, however, the eff[...]
Article : texte imprimé
Yuegui Zhou, Auteur ;
Weicheng Cao, Auteur ;
Lei Wang, Auteur ;
Mingchuan Zhang, Auteur
|
A hybrid Eulerian−Lagrangian model was developed to simulate gas−droplet−particle multiphase flow and the collision humidification between sorbent particles and spray droplets in the confined multifluid alkaline spray generator for a novel semid[...]
Article : texte imprimé
Jeroen Cornel, Auteur ;
Christian Lindenberg, Auteur ;
Mazzotti, Marco, Auteur
|
In this work, different process analytical technologies based on vibrational spectroscopy, i.e., attenuated total reflectance Fourier transform infrared (ATR-FTIR) and Raman spectroscopy, were applied by means of multivariate data analysis techn[...]
Article : texte imprimé
Minh T. Ho, Auteur ;
Guy W. Allinson, Auteur ;
Dianne E. Wiley, Auteur
|
Pressure swing adsorption (PSA) processes have been used extensively for gas separation, especially in the separation of hydrogen from CO2, and in air purification. The objective of this paper is to examine the economic feasibility of pressure s[...]
Article : texte imprimé
Li-Hua Wang, Auteur ;
Chun-I Lin, Auteur
|
Adsorption of lead(II) ion from aqueous solution using rice hull ash (RHA) was explored in this work. The RHA prepared was found to be an efficient adsorbent. Experimental results indicated the rate of removal and the removal at equilibrium coul[...]
Article : texte imprimé
S. Anil Kumar, Auteur ;
He Yuelong, Auteur ;
Ding Yumei, Auteur ;
Yang Le, Auteur
|
Poly(ethylene-co-vinyl acetate)−clay nanocomposites containing different filler loading were prepared. Transport of gases through the composite membranes was investigated, and the results were compared with the unfilled one. Transport studies re[...]
Article : texte imprimé
Ramesh Chitrakar, Auteur ;
Satoko Tezuka, Auteur ;
Akinari Sonoda, Auteur ;
Kohji Sakane, Auteur
|
We report a very simple and efficient method to prepare LDHs of Mg−Al, Mg−Fe, and Zn−Al by simply mixing solid divalent metal oxide with trivalent metal chloride solution at 30 °C. Calcined Mg−Al and Mg−Fe are effective in removing low concentra[...]
Article : texte imprimé
Suk Yong Jung, Auteur ;
Lee, Jae-Soo, Auteur ;
Jung Je Park, Auteur ;
Soo Chool Lee, Auteur
|
To improve the sulfidation and regeneration properties of Zn−Ti-based desulfurization sorbents, sorbents with 5 wt % of the promoters, iron or cerium oxide, were prepared and tested in a packed reactor under intermediate temperature conditions ([...]
Article : texte imprimé
K. Vasanth Kumar, Auteur ;
P. Martins, Auteur ;
F. Rocha, Auteur
|
A three-layer feed-forward artificial neural network (ANN) was constructed and tested to analyze the crystal growth rate of sucrose under different operating conditions. The operating variables studied were used as inputs to predict the correspo[...]
Article : texte imprimé
Jinhua Li, Auteur ;
Chao Wang, Auteur ;
Zhengyu Yang, Auteur
|
Biopetroleum, mainly composed of alkanes, cycloalkanes, and aromatic hydrocarbons, was prepared from biomass by direct deoxyliquefaction. The distillation fractions were obtained after distilling at different temperatures and may become dark bro[...]
Article : texte imprimé
Qing-Guo Wang, Auteur ;
Liu, Min, Auteur ;
Chang Chieh Hang, Auteur
|
In this paper, an integral identification method is proposed for continuous-time delay systems in presence of both unknown initial conditions and static disturbances from a step test. The integration limits are specifically chosen to make the re[...]
Article : texte imprimé
Q. Zhou, Auteur ;
Christine W. Chan, Auteur ;
P. Tontiwachiwuthikul, Auteur
|
Research on amine-based carbon dioxide (CO2) capture has mainly focused on improving the effectiveness and efficiency of the CO2 capture process. The objective of our work is to explore relationships among key parameters that affect the CO2 prod[...]
Article : texte imprimé
Alessandro Paglianti, Auteur ;
Zuohua Liu, Auteur ;
Giuseppina Montante, Auteur ;
Franco Magelli, Auteur
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In this work, a simplified analysis of the features of macroinstabilities in stirred tanks is proposed. The experimental part of the study is based on the collection of time series acquired by pressure transducers placed on the tank wall. The me[...]
Article : texte imprimé
Mitali Das, Auteur ;
B. C. Meikap, Auteur ;
R. K. Saha, Auteur
|
The hydrodynamic behaviors of mixed system of particles were investigated in a circulating fluidized bed (CFB) unit consisting of fast column (riser) with an inner diameter of 0.1016 m and a height of 5.62 m. Particle mixtures containing a Gelda[...]
Article : texte imprimé
Andrew D. Pienaar, Auteur ;
Arno de Klerk, Auteur
|
Reduced (unsulfided) nickel catalysts can be used for hydroprocessing sulfur-free Fischer−Tropsch derived feed materials, but catalyst deactivation by metal leaching can be a problem in the presence of carboxylic acids. Leaching of reduced nicke[...]
Article : texte imprimé
Amir H. Mohammadi, Auteur ;
Dominique Richon, Auteur
|
A mathematical model based on feed-forward artificial neural network technique, which uses a modified Levenberg−Marquardt optimization algorithm, has been developed to estimate the solubility of a pure hydrocarbon hydrate former in pure water be[...]
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