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Vol. 47 n°22 Novembre 2008 |
Vol. 47 N° 23 Décembre 2008 |
Vol. 47 n°24 Décembre 2008 |
Vol. 48 N°1 Janvier 2009 |
Vol. 48 N°2 Janvier 2009 |
Vol. 48 N°3 Février 2009 |
Vol. 48 N°4 Février 2009 |
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| Titre : | Industrial & engineering chemistry research, Vol. 48 N°1 - Janvier 2009 |
| Type de document : | Bulletin : texte imprimé |
| Paru le : | 25/02/2009 |
| Année de publication : | 2009 |
| Format : | p. 1-544 / ill. / 28 cm. |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| En ligne : | http://pubs.acs.org/toc/iecred/48/1 |
Dépouillements
Article : texte imprimé
Peter Erri, Éditeur scientifique ;
Arvind Varma, Éditeur scientifique
|
Nickel is widely used as an industrial catalyst and has recently been investigated as an oxygen carrier in chemical looping combustion (CLC), which is a novel approach for power generation that offers inherent CO2 capture. However, prior studies[...]
Article : texte imprimé
Juan-David Llamas, Éditeur scientifique ;
François Lesage, Éditeur scientifique ;
Gabriel Wild, Auteur
|
Two wire mesh tomography devices and a liquid collector were used to study the influence of the gas flow rate on liquid distribution when fluids distribution on top of the reactor is ensured by a perforated plate. In opposition to most of the st[...]
Article : texte imprimé
Changning Wu, Éditeur scientifique ;
Yi Cheng, Éditeur scientifique ;
Yong Jin, Éditeur scientifique
|
A two-dimensional reactor model incorporating hydrodynamics, mass balance, energy balance, and a 4-lump/14-lump kinetic model was established to simulate the riser and downer based fluid catalytic cracking (FCC) processes. The kinetic parameters[...]
Article : texte imprimé
Dandan Zhou, Éditeur scientifique ;
Shuangshi Dong, Éditeur scientifique ;
Heli Wang, Éditeur scientifique
|
Hydrodynamic characteristics of a gas−liquid−solid conical fluidized bed were studied and compared with both liquid−solid conical beds and three-phase cylindrical fluidized beds. The effect of bubbles on particle mixing, pressure drop, and minim[...]
Article : texte imprimé
Sandesh S. Deshmukh, Éditeur scientifique ;
Mayur J. Sathe, Éditeur scientifique ;
Jyeshtharaj B. Joshi, Éditeur scientifique
|
Flow between two concentric cylinders with high-speed rotation of the inner cylinder, also termed as turbulent Taylor−Couette flow, is an integral part of annular centrifugal extractor (ACE). The vortex motion in the annular region causes intens[...]
Article : texte imprimé
Dongsheng Zhang, Éditeur scientifique ;
Niels G. Deen, Éditeur scientifique ;
J. A. M. Kuipers, Éditeur scientifique
|
Physical and chemical absorption of pure CO2 bubbles in water and an aqueous sodium hydroxide (NaOH) solution has been studied in a square cross-sectioned bubble column using the commercial software package CFX-4.4. The subgrid-scale turbulence [...]
Article : texte imprimé
B. C. Ong, Éditeur scientifique ;
P. Gupta, Éditeur scientifique ;
A. Youssef, Éditeur scientifique
|
The effect of gas sparger design on the gas holdup radial profile in a bubble column (with a diameter of 0.162 m) has been studied using γ-ray computed tomography (CT). Six different configurations of gas spargers were examined, using an air−wat[...]
Article : texte imprimé
Sameer Pallavkar, Éditeur scientifique ;
Tae-Hoon Kim, Éditeur scientifique ;
Dan Rutman, Éditeur scientifique
|
Wall-flow diesel particulate filters (DPFs) are considered the most effective devices for the control of diesel particulate emissions. A requirement for the reliable operation of the DPFs, however, is the periodic and/or continuous regeneration [...]
Article : texte imprimé
Jan Vesaratchanon, Éditeur scientifique ;
Alex Nikolov, Éditeur scientifique ;
Darsh T. Wasan, Éditeur scientifique
|
The sedimentation of a similarly charged monodisperse colloidal suspension was studied to investigate the role of collective particle interactions affecting the rate of sedimentation and thereby the stability. The particle concentration profiles[...]
Article : texte imprimé
Alexandra Teleki, Éditeur scientifique ;
Beat Buesser, Éditeur scientifique ;
Martin C. Heine, Éditeur scientifique
|
Rutile TiO2 particles of 40 nm average diameter were made by flame spray pyrolysis (FSP) and in situ coated with ultrathin (2−4 nm) SiO2 layers. The spray flame was enclosed by a quartz glass tube while hexamethyldisiloxane (HMDSO) vapor-laden N[...]
Article : texte imprimé
Marcos Llusa, Éditeur scientifique ;
Kurt Sturm, Éditeur scientifique ;
Osama Sudah, Éditeur scientifique
|
This paper examines the effect of three protocols with several units and blender parameters on the mitigation of active pharmaceutical ingredient (API) agglomeration in solid formulations. The three protocols either preblend API with a portion o[...]
Article : texte imprimé
Piero Salatino, Éditeur scientifique ;
Osvalda Senneca, Éditeur scientifique
|
A novel concept of looping combustion of carbon (CarboLoop) is presented. It is based on the feature of carbons to extensively uptake oxygen upon exposure to air at moderate temperatures. Surface oxides of carbon are eventually released as combu[...]
Article : texte imprimé
Juan C. Padrino, Éditeur scientifique ;
Daniel D. Joseph, Éditeur scientifique
|
The dynamics of a bounded viscous incompressible fluid surrounding a spherical bubble in rectilinear motion simultaneously experiencing volume changes is examined by means of two viscous irrotational theories, namely, viscous potential flow and [...]
Article : texte imprimé
Xiaobo Wei, Éditeur scientifique ;
Haibo Shi, Éditeur scientifique ;
Weizhong Qian, Éditeur scientifique
|
Production of vinyl chloride monomer (VCM) by the hydrochlorination of acetylene with HCl was investigated in both a single-stage fluidized bed (SSFB) and a two-stage fluidized bed (TSFB) at different reaction temperatures and space velocities o[...]
Article : texte imprimé
Yue Huang, Éditeur scientifique ;
Richard Turton, Éditeur scientifique ;
Parviz Famouri, Éditeur scientifique
|
Circulating fluidized beds (CFB) are currently used in many industrial processes for noncatalytic and catalytic gas-solid reactions. The prediction of solids flow rate is important because its effective control is the key to smooth operation of [...]
Article : texte imprimé
Yuhe Wang, Éditeur scientifique ;
Ralph T. Yang, Éditeur scientifique
|
Desulfurization of a JP-5 light fraction (841 ppmw S) for on-board fuel cell applications was investigated by π-complexation adsorption with mesoporous SBA-15 and MCM-41 supported Cu2O. The effect of support and reduction temperature on the sulf[...]
Article : texte imprimé
R. F. Mudde, Éditeur scientifique ;
W. K. Harteveld, Éditeur scientifique ;
H. E. A van den Akker, Éditeur scientifique
|
Uniform bubbly flow in a 15 cm bubble column is investigated. We use a special needle sparger consisting of 559 separate needles, uniformly distributed over the bottom. With this sparger, we can ensure that all bubbles generated are of the same [...]
Article : texte imprimé
David M. Scott, Éditeur scientifique ;
John F. Davidson, Éditeur scientifique ;
Sim Ee Cheah, Éditeur scientifique
|
This paper reports the results of an experimental and theoretical study into transient granular flows in an inclined, slowly rotating cylinder. The granular materials used were sand, poppy seeds, and glass beads. The following situations have be[...]
Article : texte imprimé
Michael Peters, Éditeur scientifique
|
Following Irving and Kirkwood’s (J. Chem. Phys. 1950, 18, 817) classical approach to the statistical mechanics of transport processes and the conservation equations for mass, momentum, and energy, we introduce a particular dynamical variable for[...]
Article : texte imprimé
D. J. Holland, Éditeur scientifique ;
Q. Marashdeh, Éditeur scientifique ;
C. R. Müller, Éditeur scientifique
|
This paper reports the first quantitative comparison of magnetic resonance (MR) and electrical capacitance volume tomography (ECVT) on a 50 mm diameter gas-fluidized bed of silica−alumina catalyst support particles (dp = 58 μm). ECVT data were a[...]
Article : texte imprimé
Renaud Escudié, Éditeur scientifique ;
Norman Epstein, Éditeur scientifique
|
On the basis of three well documented runs on the layer-inversion phenomenon in binary liquid-fluidized beds, it is shown that the best method, to date, for predicting the layer-inversion voidage, knowing the layer inversion velocity, is via the[...]
Article : texte imprimé
Zhongxiang Chen, Éditeur scientifique ;
Hsiaotao T. Bi, Éditeur scientifique
|
Experiments were conducted in a small cyclone separator (50 mm inner diameter) with two grades of commercial polyethylene particles, to study the electrostatic charge generation during the gas−solid transportation and separation. Results show cl[...]
Article : texte imprimé
Jose A. Quevedo, Éditeur scientifique ;
Gaurav Patel, Éditeur scientifique ;
Robert Pfeffer, Éditeur scientifique
|
Surface-treated hydrophobic aerogel (Nanogel) granules of sizes between 500 and 850 μm, 1.7 and 2.3 mm, and 0.5 and 2.3 mm are fluidized by a downward flow of oil-contaminated water in an inverse fluidization mode. Aerogel particles are nanostru[...]
Article : texte imprimé
R. Caulkin, Éditeur scientifique ;
X. Jia, Éditeur scientifique ;
C. Xu, Éditeur scientifique
|
Packing simulations of generic, nonspherical pellets were performed and compared with experimental data sets obtained using X-ray computerized tomography (CT). Two modified versions of what was previously a purely geometrical, digitally based pa[...]
Article : texte imprimé
X. F. Dong, Éditeur scientifique ;
A. B. Yu, Éditeur scientifique ;
J. M. Burgess, Éditeur scientifique
|
A mathematical model for the four-phase (gas, powder, liquid, and solids) flow in a two-dimensional ironmaking blast furnace is presented by extending the existing two-fluid flow models. The model describes the motion of gas, solid, and powder p[...]
Article : texte imprimé
Xiaolong Yin, Éditeur scientifique ;
Sankaran Sundaresan, Éditeur scientifique
|
In this study, we constructed from lattice-Boltzmann simulations a drag correlation for bidisperse gas−solid suspensions containing equally sized particles that are moving with different velocities relative to the interstitial fluid. Our analysi[...]
Article : texte imprimé
Xiaozhen Lu, Éditeur scientifique ;
Andrea Prosperetti, Éditeur scientifique
|
Some results of a computational study of axisymmetric Taylor bubbles rising in a vertical tube filled with a quiescent, upward- or downward-flowing liquid are presented. The computational method is based on a finite-volume discretization of the [...]
Article : texte imprimé
Chian W. Chan, Éditeur scientifique ;
Jonathan P. K. Seville, Éditeur scientifique ;
Xianfeng Fan, Éditeur scientifique
|
Circulating fluidized bed (CFB) cyclones operate at high solids loadings. The paper presents, for the first time, particle trajectories within a cyclone obtained by positron emission particle tracking (PEPT), as a function of the solids loading [...]
Article : texte imprimé
Matteo Strumendo, Éditeur scientifique ;
Hamid Arastoopour, Éditeur scientifique
|
The FCMOM (Finite size domain Complete set of trial functions Method Of Moments) is an efficient and accurate numerical technique to solve PBE (population balance equations) and was validated for monovariate PBE [Strumendo, M.; Arastoopour, H. S[...]
Article : texte imprimé
Hadi Bashar, Éditeur scientifique ;
Franco Berruti, Éditeur scientifique ;
Cedric Briens, Éditeur scientifique
|
Three different calibration techniques have been developed to greatly improve the accuracy of the solid holdup distributions obtained from electrical capacitance tomography (ECT) measurements. First, liquid mixtures are used to calibrate the ECT[...]
Article : texte imprimé
S. A. Razzak, Éditeur scientifique ;
J.-X. Zhu, Éditeur scientifique ;
S. Barghi, Éditeur scientifique
|
Electrical resistance tomography (ERT) and fiber optic were applied to investigate phase holdups and phase propagation velocities in a gas−liquid−solid circulating fluidized bed (GLSCFB). Since ERT is applicable only to conductive phase(s), e.g.[...]
Article : texte imprimé
Jianhua Chen, Éditeur scientifique ;
Ning Yang, Éditeur scientifique ;
Wei Ge, Éditeur scientifique
|
Understanding the physical essence of regime transition is of crucial importance for the modeling and simulation of hydrodynamics and heat and mass transfer in bubble columns. The regime transition of the air−water system has been captured by th[...]
Article : texte imprimé
Ali Akhavan, Éditeur scientifique ;
J. Ruud van Ommen, Éditeur scientifique ;
John Nijenhuis, Éditeur scientifique
|
Gas flow pulsation was employed to improve the drying of porous pharmaceutical granules in a cylindrical fluidized bed. In our approach, a fraction of the total flow was oscillating intermittently and periodically, typically at 3 Hz during 2 min[...]
Article : texte imprimé
Jun You, Éditeur scientifique ;
Dawei Wang, Éditeur scientifique ;
Chao Zhu, Éditeur scientifique
|
The gas−solid flow in a riser has strong inherent nonuniformities both in the flow structure and in the dynamic phases. The flow structure in a riser can be altered with the implementation of different solids feeding devices, and hence may affec[...]
Article : texte imprimé
Wajeeh O. Moughrabiah, Éditeur scientifique ;
John R. Grace, Éditeur scientifique ;
Xiaotao T. Bi, Éditeur scientifique
|
The influences of operating pressure, temperature, and gas velocity on the degree of electrification in a fluidized bed of glass beads and different grades of polyethylene resin were investigated in a fluidization column of 150-mm inner diameter[...]
Article : texte imprimé
Mehmet Tartan, Éditeur scientifique ;
Dimitri Gidaspow, Éditeur scientifique ;
Veeraya Jiradilok, Éditeur scientifique
|
The objective of this technical note is to give an alternate explanation of the ring structure behavior for the flow of fluidized catalytic cracking (FCC) particles in a riser recently obtained in L. S. Fan’s laboratory. Their recent explanation[...]
Article : texte imprimé
M. Sommerfeld, Éditeur scientifique ;
D. Bröder, Éditeur scientifique
|
The hydrodynamics and bubble behavior in a laboratory-scale bubble column (diameter 140 mm) was analyzed using planar shadow image velocimetry. Different air flow rates were considered by using capillary aerators with different capillary diamete[...]
Article : texte imprimé
Wen-Ching Yang, Éditeur scientifique ;
James Hoffman, Éditeur scientifique
|
Preliminary commercial designs were carried out for a fluidized bed as a CO2 adsorber and a moving bed as a
regenerator. Reverse engineering methodology was employed on the basis of a commercial 500 MW supercritical PC power plant whereby the [...]
Article : texte imprimé
David M. King, Éditeur scientifique ;
Yun Zhou, Éditeur scientifique ;
Louis F. Hakim, Éditeur scientifique
|
The ability to prepare and functionalize passivated nanosized metal powders was demonstrated using TiO2 films that were deposited via atomic layer deposition (ALD). Metal nanopowders were synthesized from the dehydration and subsequent decomposi[...]
Article : texte imprimé
Masayuki Horio, Éditeur scientifique ;
Amit Suri, Éditeur scientifique ;
Junji Asahara, Éditeur scientifique
|
In the present work a prototype powdered biomass charcoal fired heater with a heat output of 6 kW is designed and developed so that a new powdered charcoal market can be initiated to enhance greenhouse gas (GHG) reduction through massive biomass[...]
Article : texte imprimé
Nobusuke Kobayashi, Éditeur scientifique ;
Nobuhiko Okada, Éditeur scientifique ;
Ayumu Hirakawa, Éditeur scientifique
|
Hydrolysis experiment of woody biomass in hot compressed water (HCW) was conducted in a batch-type reactor and the characteristics of solid residue after the HCW hydrolysis treatment were measured to understand the hydrolysis mechanism of woody [...]
Article : texte imprimé
Sung Real Son, Éditeur scientifique ;
Kang Seok Go, Éditeur scientifique ;
Sang Done Kim, Éditeur scientifique
|
The chemical-looping hydrogen generation (CLH) system consists of reduction of metal oxide and water decomposition by oxidizing reduced metal oxide. In the present study, water decomposition by the reduction and oxidation of metal oxide (CuO) wa[...]
Article : texte imprimé
Spiro D. Alexandratos, Éditeur scientifique
|
Ion-exchange resins comprise one of the most important scientific developments of the 20th century. Their applicability to water softening, environmental remediation, wastewater treatment, hydrometallurgy, chromatography, biomolecular separation[...]
Article : texte imprimé
Domenico Petruzzelli, Éditeur scientifique ;
Mario Petrelle, Éditeur scientifique ;
Giancarlo Boghetich, Éditeur scientifique
|
Waste limestone from marble cutting operations was adopted as a neutralizing agent of acidic wastewater from the glass industry. Hydrogen fluoride containing wastewater from the glass matting operations was investigated with the final aim of stu[...]
Article : texte imprimé
Miguel Angel Vicente, Éditeur scientifique ;
Carolina Belver, Éditeur scientifique ;
Mikhail Sychev, Éditeur scientifique
|
A saponite from Ballarat, CA was intercalated with solutions containing only-Al, only-Ga, and two mixed AlGa-polycations, with various Al/Ga ratios. The pillared solids were obtained by calcination of the intercalated precursors at two temperatu[...]
Article : texte imprimé
Fumihide Shiraishi, Éditeur scientifique ;
Yusuke Suzuki, Éditeur scientifique
|
In fermentation processes, it is important to identify the bottleneck enzyme in a given metabolic reaction network, because increasing its activity would lead to an enhancement in the productivity of a desired metabolite. To efficiently identify[...]
Article : texte imprimé
Qinghua Zhang, Éditeur scientifique ;
Zai-Sha Mao, Éditeur scientifique ;
Chao Yang, Éditeur scientifique
|
Mixing of reagents is very important in precipitation processes, as it can significantly affect the size distribution and morphology of products. In this work, the influence of turbulent mixing on the course of barium sulfate precipitation proce[...]
Article : texte imprimé
Diogo Mendes, Éditeur scientifique ;
Hermenegildo Garcia, Éditeur scientifique ;
V. B. Silva, Éditeur scientifique
|
In this paper the catalytic performances for the low-temperature water−gas shift reaction of Au/TiO2 type A (from World Gold Council), Au/CeO2 (developed at UPV-CSIC), CuO/Al2O3 (from BASF), and CuO/ZnO/Al2O3 (from REB Research & Consulting) hav[...]
Article : texte imprimé
Bo Wang, Éditeur scientifique ;
Wei Mao, Éditeur scientifique ;
Hongzhu Ma, Éditeur scientifique
|
A new clean catalytic process for liquid phase selective oxidation of toluene has been carried out on CeO2 promoted sulfated TiO2 (SO42−/TiO2−CeO2, abbreviated as STC) catalyst with ozone−air at ambient temperature and atmospheric pressure. Neit[...]
Article : texte imprimé
Zheng-Hong Luo, Éditeur scientifique ;
Xiao-Zi You, Éditeur scientifique ;
Hua-Rong Li, Éditeur scientifique
|
Direct preparation of 1,3-dichloro-2-propanol from glycerol is carried out in a batch reactor using acetic acid catalyst at 363−393 K. The analytical technique, gas chromatography, is employed in order to follow the time evolution of the reagent[...]
Article : texte imprimé
Benjaram M. Reddy, Éditeur scientifique ;
Pankaj Bharali, Éditeur scientifique ;
Pranjal Saikia, Éditeur scientifique
|
A study has been undertaken on the thermal stability and dispersion behavior of nanostructured CexZr1−xO2 mixed oxides over anatase-TiO2 support, synthesized by a deposition coprecipitation method and subjected to heat treatments at different te[...]
Article : texte imprimé
Pierre Guyonnet, Éditeur scientifique ;
F. Hank Grant, Éditeur scientifique ;
Miguel J. Bagajewicz, Éditeur scientifique
|
Refinery production planning is usually performed using the refinery battery limit constraints. Two associated problems are the oil uploading and product distribution problems. These problems have traditionally been solved separately, and they h[...]
Article : texte imprimé
Pablo A. Marchetti, Éditeur scientifique ;
Jaime Cerdá, Éditeur scientifique
|
This work presents a new mixed-integer linear programming (MILP) continuous-time approach for the short-term scheduling of single-stage multiproduct batch plants with parallel units and sequence-dependent changeovers. It uses a unit-specific pre[...]
Article : texte imprimé
Xueyi Fang, Éditeur scientifique ;
Zhijiang Shao, Éditeur scientifique ;
Zhiqiang Wang, Éditeur scientifique
|
In this paper, the model-based real-time optimization (RTO) is viewed as a kind of nonlinear parametric optimization problem which is solved repeatedly when parameter values change. A novel RTO strategy—mnemonic enhancement optimization (MEO)—is[...]
Article : texte imprimé
Zhigang Wang, Éditeur scientifique ;
Naitao Yang, Éditeur scientifique ;
Bo Meng, Éditeur scientifique
|
La0.6Sr0.4Co0.2Fe0.8O3−α (LSCF) perovskite powders having a submicrometer size were synthesized by a sol−gel autocombustion method. From these powders, the gastight LSCF hollow-fiber membranes with a highly asymmetric structure comprising a dens[...]
Article : texte imprimé
Shuqin Dong, Éditeur scientifique ;
Changqing Cao, Éditeur scientifique ;
Chongdian Si, Éditeur scientifique
|
A gas−solid fluidized bed, 0.14 m in diameter and 1.6 m in height, was employed to investigate systematically the effects of perforated ratios of distributor on fluidization characteristics with air as gas phase and fluid catalytic cracking part[...]
Article : texte imprimé
M. E Gálvez, Éditeur scientifique ;
A. Frei, Éditeur scientifique ;
F. Meier, Éditeur scientifique
|
The production of AlN by thermal reduction of Al2O3 in a N2 flow, with C/CH4 as reducing agents, is investigated using concentrated thermal radiation as the energy source of high-temperature process heat. Samples were directly exposed to radiati[...]
Article : texte imprimé
Abhishek Kalva, Éditeur scientifique ;
Thirugnanasambandam Sivasankar, Éditeur scientifique ;
Vijayanand S. Moholkar, Éditeur scientifique
|
Acceleration of the transesterification reaction for synthesis of biodiesel by application of ultrasound is known. This paper tries to establish the mechanism of this enhancement by discriminating between physical and chemical effects of ultraso[...]
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