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2.015 Aktuelle Fachpublikationen zum Thema temperature

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Experimental and Kinetic Study on the Influence of CaO on the N2O + NH3 + O2 System

18.02.2015 | Shi-long Fu; Qiang Song; Qiang Yao, Energy & Fuels, 2015

N2O is a non-negligible pollutant emitted from circulating fluidized bed (CFB) boilers, which may be reduced by NH3. The influence of bed material (mainly CaO) on the N2O + NH3 + O2 system was investigated using a fixed bed reactor in the temperature range from 873 to 1123 K. Experimental results ...

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Experimental study on the oxidation reaction parameters of different carbon structure particles

17.02.2015 | Yang Zhao, Zhong Wang, Shuai Liu, Rui‐Na Li, Ming‐Di Li, Environmental Progress, 2015

This study explores the effect of the difference in the carbon structure of particles on their reactivity towards O2. Particles with three types of carbon structures were captured in the exhaust of a diesel engine fueled with blends of diesel with 0, 5, and 15 vol % methanol (designated here as ...

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Influence of orientation on corrosion behavior of directionally solidified cobalt‐base superalloy

17.02.2015 | L. N. Ma, Z. Zhang, Materials and Corrosion, 2015

Oxidation behavior on intersecting and longitudinal surfaces of directionally solidified cobalt‐base superalloy DZ40M was studied respectively at 1050 °C for 0.1 h, 1 h and 10 h and electrochemical property before and after oxidation on two orientations in 3.5% sodium chloride solution at room ...

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Oxidation of the emerging contaminants amitriptyline hydrochloride, methyl salicylate and 2‐phenoxyethanol by persulfate activated by UV irradiation

17.02.2015 | Francisco J. Real, Juan L. Acero, F. Javier Benitez, Gloria Roldan, Francisco Casas, Journal of Chemical Technology & Biotechnology, 2015

Abstract Background Despite the small concentration of emerging contaminants (ECs) in water systems, in recent years numerous works have reported potential toxicological risks associated to their presence in the environment, being recommendable their elimination by different procedures, such ...

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Oxidation of Iron Causes Removal of Phosphorus and Arsenic from Streamwater in Groundwater-Fed Lowland Catchments

17.02.2015 | Stijn Baken; Peter Salaets; Nele Desmet; Piet Seuntjens; Elin Vanlierde; Erik Smolders, Environmental Science & Technology, 2015

The fate of iron (Fe) may affect that of phosphorus (P) and arsenic (As) in natural waters. This study addresses the removal of Fe, P, and As from streams in lowland catchments fed by reduced, Fe-rich groundwater (average: 20 mg Fe L–1). The concentrations of dissolved Fe ...

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Electrical porous silicon sensor for detection of various organic molecules in liquid phase

16.02.2015 | Farid A. Harraz, Adel A. Ismail, Huocine Bouzid, Saleh A. Al‐Sayari, Ali Al‐Hajry, Mohammad S. Al‐Assiri, physica status solidi (a), 2015

An electrical sensor based on porous silicon (PSi) for the detection of various organic molecules in the liquid phase is demonstrated. PSi layers with a thickness of ~4.5 μm and pore sizes in the range of 30 nm were initially synthesized by the electrochemical anodization of a silicon wafer. ...

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Computational Investigation of Oxygen Concentration Effects on a Soot Mechanism with a Phenomenological Soot Model of Acetone–Butanol–Ethanol (ABE)

16.02.2015 | Zhichao Zhao; Han Wu; Mianzhi Wang; Chia-Fon Lee; Jingping Liu; Jianqin Fu; Wayne Chang, Energy & Fuels, 2015

A phenomenological soot model of acetone–butanol–ethanol (ABE) was proposed with modification of the fuel pyrolysis process, and the oxidation effect on soot number density was also included. Using KIVA-3 V Release 2 code coupled with this ABE soot model, multi-dimensional computational fluid ...

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A TEMPO‐Free Copper‐Catalyzed Aerobic Oxidation of Alcohols

10.02.2015 | Boran Xu, Jean‐Philip Lumb, Bruce A. Arndtsen, Angewandte Chemie International Edition, 2015

Abstract The copper‐catalyzed aerobic oxidation of primary and secondary alcohols without an external N‐oxide co‐oxidant is described. The catalyst system is composed of a Cu/diamine complex inspired by the enzyme tyrosinase, along with dimethylaminopyridine (DMAP) or N‐methylimidazole (NMI). ...

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A TEMPO‐Free Copper‐Catalyzed Aerobic Oxidation of Alcohols

10.02.2015 | Boran Xu, Jean‐Philip Lumb, Bruce A. Arndtsen, Angewandte Chemie, 2015

Abstract The copper‐catalyzed aerobic oxidation of primary and secondary alcohols without an external N‐oxide co‐oxidant is described. The catalyst system is composed of a Cu/diamine complex inspired by the enzyme tyrosinase, along with dimethylaminopyridine (DMAP) or N‐methylimidazole (NMI). ...

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Redox cycling in the activation of peroxides by iron porphyrin and manganese complexes. ‘Catching’ catalytic active intermediates

06.02.2015 | Author(s): Maria Oszajca , Alicja Franke , Małgorzata Brindell , Grażyna Stochel , Rudi van Eldik, Coordination Chemistry Reviews, 2015

Publication date: Available online 2 February 2015 Source:Coordination Chemistry Reviews Author(s): Maria Oszajca , Alicja Franke , Małgorzata Brindell , Grażyna Stochel , Rudi van Eldik Understanding the redox cycling of metal ions in natural and biomimetic systems for dioxygen ...

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