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1.620 Aktuelle Fachpublikationen zum Thema temperature

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Experimental Study of the Reaction of Isopropyl Nitrate with OH Radicals: Kinetics and Products

14.11.2014 | Manolis N. Romanias, Julien Morin, Yuri Bedjanian, International Journal of Chemical Kinetics, 2014

ABSTRACT The kinetics of the reaction of isopropyl nitrate (IPN) with OH radicals has been studied using a low‐pressure flow tube reactor coupled with a quadrupole mass spectrometer: OH + (CH3)2CHONO2 → products (2). The rate constant of the title reaction was determined using both the ...

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Development of a modelling tool representing biomass gasification step in a dual fluidised bed

13.11.2014 | Halima Noubli, Sylvie Valin, Bertrand Spindler, Mehrdji Hemati, The Canadian Journal of Chemical Engineering, 2014

Abstract The aim of the present study is to develop a 1D modelling tool representing biomass gasification in a dual fluidized bed. This tool should be used with the objective to control and scale‐up the process for different pilot scales and operating conditions. This implies that the ...

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Synthesis of comb‐type copolymers with various pendants and their effect on the complex rheological behaviors of waxy oils

11.11.2014 | Tongshuai Wang, Jun Xu, Minglei Wang, Xiaoming Wei, Muxian Shen, Jing Huang, Rui Zhang, Li Li, Xuhong Guo, Journal of Applied Polymer Science, 2014

ABSTRACT To improve the flowability of waxy crude oil containing a high concentration of asphaltenes (AS), novel comb‐type copolymers of poly(maleic acid polyethylene glycol ester‐co‐α‐octadecene) (PMAC) and poly(maleic acid aniline amide‐co‐α‐octadecene) (AMAC) with various grafting ratios ...

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The rapid synthesis of oxazolines and their heterogeneous oxidation to oxazoles under flow conditions

11.11.2014 | Steffen Glöckner; Duc N. Tran; Richard J. Ingham; Sabine Fenner; Zoe E. Wilson; Claudio Battilocchio; Steven V. Ley, Organic & Biomolecular Chemistry, 2014

A rapid flow synthesis of oxazolines and their oxidation to the corresponding oxazoles is reported. The oxazolines are prepared at room temperature in a stereospecific manner, with inversion of stereochemistry, from β-hydroxy amides using Deoxo-Fluor®. The corresponding oxazoles can then be ...

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Hydrogen Exposure Effects on Pt/Al2O3 Catalysts Coated with Thiolate Monolayers

11.11.2014 | April R. Corpuz; Simon H. Pang; Carolyn A. Schoenbaum; J. William Medlin, Langmuir, 2014

Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was used to examine the effect of thermal treatment of self-assembled monolayers (SAMs) produced from various thiols (1-hexanethiol, 1-decanethiol, 1-octadecanethiol, 1,6-hexanedithiol, 1,10-decanedithiol, 1,2-benzenedithiol) on ...

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Corrosion behavior of EN AC‐AlSi10Mg in boiling coolant with various average flow temperatures

05.11.2014 | T. Duchardt, G. Andersohn, M. Oechsner, Materials and Corrosion, 2014

Even with an increasing share in electrical vehicles, the combustion engine can be assumed to be the main drive technology in automobiles over the next 20 years. Increasing demands to the engine, such as the reduction of CO2 emissions and minimization of fuel consumption while maintaining ...

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The rapid synthesis of oxazolines and their heterogeneous oxidation to oxazoles under flow conditions

04.11.2014 | Steffen Glöckner; Duc N Tran; Richard Ingham; Sabine Fenner; Zoe E Wilson; Claudio Battilocchio; Steven V Ley, Organic & Biomolecular Chemistry, 2014

A rapid flow synthesis of oxazolines and their oxidation to the corresponding oxazoles is reported. The oxazolines are prepared at room temperature with inversion of stereochemistry from β-hydroxy amides using Deoxo-Fluor®. The corresponding oxazoles can then be obtained via a packed reactor ...

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Slag Formation during Oxygen-Blown Entrained-Flow Gasification of Stem Wood

04.11.2014 | Per Carlsson; Charlie Ma; Roger Molinder; Fredrik Weiland; Henrik Wiinikka; Marcus Öhman; Olov Öhrman, Energy & Fuels, 2014

Stem wood powders were fired in a mullite-lined pilot-scale oxygen-blown pressurized entrained-flow gasifier. During repeated campaigns involving increases in fuel load and process temperature, slag formations that eventuated in the blockage of the gasifier outlet were observed. These slags were ...

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Physicothermal Properties of Aqueous Sodium Chloride Solutions

03.11.2014 | G.R. Carvalho, F. Chenlo, R. Moreira, J. Telis‐Romero, Journal of Food Process Engineering, 2014

Abstract Physicothermal properties of sodium chloride solutions as complementary information to the existent in literature were experimentally measured under different conditions of mass concentration (in the range of 0.040 kg NaCl/kg solution to 0.240 kg NaCl/kg solution) and temperature ...

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Effective thermal conductivity and thermal properties of phthalonitrile‐terminated poly(arylene ether nitriles) composites with hybrid functionalized alumina

28.10.2014 | Mengdie Liu, Kun Jia, Xiaobo Liu, Journal of Applied Polymer Science, 2014

ABSTRACT A polymer‐based thermal conductive composite has been developed. It is based on a dispersion of micro‐ and nanosized alumina (Al2O3) in the phthalonitrile‐terminated poly (arylene ether nitriles) (PEN‐t‐ph) via solution casting method. The Al2O3 with different particle sizes were ...

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