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1.111 Aktuelle Fachpublikationen zum Thema temperature

mit folgenden Suchkriterien:

Mechanical and thermal properties of potassium salts of poly(ethylene‐co‐ethylacrylate): Polyolefin ionomers in the absence of acid groups

18.10.2014 | Masataka Aoyama, Tomonori Koda, Ken Miyata, Taichi Nishio, Akihiro Nishioka, Polymer Engineering and Science, 2014

The thermal and mechanical properties of ionomers prepared by partial saponification of poly(ethylene‐co‐ethylacrylate) (EEA) with potassium were investigated by using differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). The Vicat softening temperature (VST) and bending ...


Effects of an ionic liquid as an additive on the thermal denaturation/degradation of lysozyme crystals

17.10.2014 | Zhanzhong Wang, Wenzhi Fang, Lijie Li, Yan Li, Xiaoting Yu, Qing Gu, Fengjuan Zhou, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Ionic liquids (ILs) have biomaterial applications and are used for protein crystallization. The present study explores the thermal denaturation and degradation kinetics of the lysozyme crystals induced by IL [C4mim]Cl using differential scanning calorimetry (DSC). Lysozyme crystals ...


Analysis of the transformation behaviors of a Chinese coal ash using in‐/ex‐situ XRD and SEM‐EXD

17.10.2014 | Xiongchao Lin, Caihong Wang, Jin Miyawaki, Yonggang Wang, Seongho Yoon, Isao Mochida, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Crystal and phase transitions of a Chinese Datong coal ash were evaluated using room temperature X‐ray diffraction (RT‐XRD), in‐situ high temperature (HT)‐XRD, and scanning electron microscope combining energy dispersive X‐ray analysis (SEM‐EDX) as temperature varied from 300 °C to ...


Comparison of different kinetic models for the chlorohydrin process using real data from an industrial tubular reactor

15.10.2014 | Ivan Petric, Amel Husanović, The Canadian Journal of Chemical Engineering, 2014

Abstract The main objective of this study was to investigate how different kinetic models for the chlorohydrin process can influence the simulation results. In order to accomplish this objective, a simplified reactor model was developed and applied on the kinetic models. The simulation ...


Development of a thermodynamic identification tool for CO2 capture by chemical absorption

15.10.2014 | Anthony Biget, Thibaut Neveux, Jean‐Pierre Corriou, Yann Le Moullec, The Canadian Journal of Chemical Engineering, 2014

Abstract The extended UNIQUAC model has been used for the representation of the thermodynamic behaviour of CO2 absorption in aqueous amine solutions. Based on available experimental data, an identification methodology has been developed to fit the extended‐UNIQUAC model parameters. In the ...


Electrochemical reduction of CO2 in an aqueous electrolyte employing an iridium/ruthenium‐oxide electrode

14.10.2014 | Nehar Ullah, Irshad Ali, Maëlle Jansen, Sasha Omanovic, The Canadian Journal of Chemical Engineering, 2014

Abstract Electrochemical reduction of CO2 in an aqueous electrolyte (Briton Robinson buffer, pH= 5.82) was investigated using an Ir/Ru‐oxide coating deposited on a titanium substrate, as a function of electrode potential and temperature. The results demonstrated that the Ir/Ru‐oxide electrode ...


Modelling and optimization of simultaneous styrene and hydrogen production in an industrial hydrogen‐permselective membrane reactor

09.10.2014 | Mohammad Farsi, Amir Rokhgireh, Majid Javidi, The Canadian Journal of Chemical Engineering, 2014

Abstract Coupling reaction and separation in a membrane reactor improves process efficiency and reduces purification cost in the next stages. In this work, the performance of the hydrogen–permselective membrane reactors to produce styrene and hydrogen through ethylbenzene dehydrogenation is ...


Chiral Resolution of Racemic Cyclopropanecarboxylic Acids in Supercritical Carbon Dioxide

08.10.2014 | Dániel Varga, György Bánsághi, Jorge Agustín Martínez Pérez, Sándor Miskolczi, László Hegedűs, Béla Simándi, Edit Sz ..., Chemical Engineering & Technology, 2014

Abstract The chiral resolution of two racemic cyclopropanecarboxylic acids with the resolving agents (S)‐2‐(N‐benzylamino)butan‐1‐ol and (R)‐1‐phenylethanamine was investigated. The resolutions were based on diastereomer salt crystallization in supercritical carbon dioxide. Unreacted compounds ...


Semi‐Empirical Model for Limestone Dissolution in Adipic Acid for Wet Flue Gas Desulfurization

08.10.2014 | Lawrence Koech, Hilary Rutto, Ray Everson, Hein Neomagus, Chemical Engineering & Technology, 2014

Abstract Wet flue gas desulfurization systems are commonly applied to remove sulfur dioxide by contacting it with limestone in an aqueous phase. The effects of pH, stirring speed, solid‐to‐liquid ratio, acid concentration, and temperature on the dissolution rate of limestone in adipic acid ...


Iron Oxide/Polymer‐Based Nanocomposite Material for Hydrogen Sulfide Adsorption Applications

08.10.2014 | Oliver Blatt, Martin Helmich, Bastian Steuten, Sebastian Hardt, Dieter Bathen, Hartmut Wiggers, Chemical Engineering & Technology, 2014

Abstract The processing of iron oxide nanoparticles derived from spray flame synthesis for specific adsorption applications is described. After the as‐prepared particles proved the ability for H2S removal in pure gas treatment, two different nanoparticle‐based composite materials were ...


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