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5.956 Aktuelle Fachpublikationen aus der Branche Verfahrenstechnik

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Extraction of polymer stress–strain behavior in the presence of self‐heating by the use of a simple model for the elastic–plastic deformation

24.07.2015 | Chrystelle A Bernard, Christophe Fond, Saïd Ahzi, Nadia Bahlouli, Polymer Engineering and Science, 2015

Polymer materials are well known to be sensitive to strain rate and temperature. Self‐heating and friction effects also play an important role in the mechanical response of these materials. Numerous constitutive laws and phenomenological models have been developed to take into account these ...

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Methods and data sources for identifying members of a regulated community

23.07.2015 | William C. Pittman, Zhe Han, Brian Z. Harding, Jiaojun Jiang, Camilo Rosas, Alba Pineda, M. Sam Mannan, Process Safety Progress, 2015

The Ammonium Nitrate explosion that shook West, Texas in April 2013 revealed deficiencies in the current regulatory enforcement system used for chemical safety and security in the United States. This cannot be said to be a failure of existing regulations. Rather, it is a failure in enforcement ...

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Slip and Characteristic Velocities in a Horizontal Pulsed Plate Extraction Column

23.07.2015 | Majid Khajenoori, Jaber Safdari, Ali Haghighi Asl, Mohammad Hassan Mallah, Chemical Engineering & Technology, 2015

Abstract Slip velocity, dispersed phase hold‐up and characteristic velocities of phases in a horizontal pulsed extraction column were investigated under no mass transfer conditions using four binary systems: kerosene‐water, toluene‐water, n‐butyl acetate‐water and butanol‐water. The effects of ...

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CFD analysis of heat transfer across the laminar wavy film on centrifugal molecular distillator

23.07.2015 | Jiang Yu, Aiwu Zeng, Xigang Yuan, Xinyu Zhang, Ji Ju, Chemical Engineering & Technology, 2015

Abstract The laminar wave dynamics and the associated heat transfer across the spinning film is a very important process in chemical engineering, but there is still a lack of sufficient investigation of the transfer flux based on the basic hydrodynamics parameters. In this work, a ...

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Multiscale Coupling of Pore Structure Evolution with Decomposition Kinetics of Limestone

23.07.2015 | Mingchun Li, Lanting Song, Yusheng Wu, Chemical Engineering & Technology, 2015

Abstract The pore structure evolution and reaction characteristics of limestone with different particle sizes during thermal decomposition were investigated experimentally. A kinetic model that considers the effect of pore structure evolution has been developed to simulate the multiscale ...

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Modeling study of silica membrane performance for hydrogen separation

23.07.2015 | Abbas Aghaeinejad‐Meybodi, Kamran Ghasemzadeh, Ali Akbar Babaluo, Pietropaolo Morrone, Angelo Basile, Asia-Pacific Journal of Chemical Engineering, 2015

Abstract The main aim of this work is the presentation of quantitative analysis of silica membrane for hydrogen separation from methanol steam reforming products to produce high purity hydrogen. This study uses a single stage silica membrane in three different flow patterns, namely cocurrent, ...

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Microwave Discharge Electrodeless Lamps (MDELs). Part VIII. Continuous On‐Site Solar Energy Remediation of Contaminated Water

21.07.2015 | Satoshi Horikoshi, Tomoki Nishimura, Hideya Tsutsumi, Nick Serpone, Chemical Engineering & Technology, 2015

Abstract Microwave discharge electrodeless lamps have been examined for use in a continuous on‐site field treatment of contaminated water using solar cells to provide the necessary electrical power. The equipment aimed to decontaminate water in areas impacted by natural disasters as the one ...

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Kinetics and Reactor Modeling of the Steam Reforming of Methanol over Mn‐promoted Cu/Al Catalyst

21.07.2015 | Huancong Shi, Hussameldin Ibrahim, Mohanned M. Elamin, Raphael Idem, Paitoon Tontiwachwuthikul, Chemical Engineering & Technology, 2015

Abstract The kinetics of the steam reforming of methanol (SRM) was studied in a packed bed reactor over Mn‐promoted Cu/Al2O3 catalyst at atmospheric pressure, temperature range of 170 to 250 oC, and weight time (W/FA0) range of 0.38 to 2.40 g‐cat.h.mol‐1 CH3OH. A LHHW type mechanism that ...

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Improving O2/N2 Selective Filtration Using Carbon Nanotube Modified Mixed Matrix Membranes

21.07.2015 | S. Zeinali, M. Aryaeinezhad, Chemical Engineering & Technology, 2015

Abstract The aim of this research is designing a modified mixed matrix membrane (MMM) in order to improve O2/N2 selective filtration. The fabricated MMMs consist of purified and functionalized Multi‐walled carbon nanotubes (MWCNTs) and PES (polyethersulfone). MWCNTs were purified by using acid ...

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Fabrication of polyvinyl chloride based nanocomposite nanofiltration membrane: investigation of SDS/Al2O3 nanoparticle concentration and solvent ratio effects

21.07.2015 | E. Bagheripour, A. R. Moghadassi, S. M. Hosseini, Asia-Pacific Journal of Chemical Engineering, 2015

Abstract In the current research polyvinylchloride‐based nanocomposite nanofiltration membranes were prepared by using of sodium dodecyl sulfate (SDS) as additive, aluminum oxide (Al2O3) nanoparticles as inorganic filler and dimethylacetamide (DMAC)/tetrahydrofuran (THF) as solvents via phase ...

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