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5.195 Aktuelle Fachpublikationen aus der Branche Verfahrenstechnik

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Taguchi's methodology for determining optimum operating conditions in hydrothermal pretreatments applied to canola seeds

18.04.2014 | María B. Fernández, Margarita A. Burnet, Ethel E. Perez, Guillermo H. Crapiste, Susana M. Nolasco, The Canadian Journal of Chemical Engineering, 2014

The aim of the present work was to determine the optimum operating conditions in hydrothermal pretreatments applied to canola seeds. The effect of these pretreatments on the canola oil extraction yield and quality was evaluated. Samples were characterized by proximate analysis. Acidity and ...

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Stress relaxation and activation volume in tension in β‐glucan and chitosan films

15.04.2014 | Anna Hejlová, Jiří Blahovec, Polymer Engineering and Science, 2014

β‐Glucan isolated from baker's yeasts (Saccharomyces cerevisiae) and chitosan films were subjected to stress relaxation tests performed at different prestress levels with the aim to study the activation volume during relaxation and to establish corresponding relaxation models. Apparent ...

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Quantitative chemical composition determination and thermal analysis for typical biomass ashes in China

15.04.2014 | Wenlong Wang, Xin Liu, Yanli Zheng, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT For better use of biomass resources, a complete understanding of the chemical compositions for the biomass ashes is important. By the joint adoption of several analysis tools, the ashes of four typical biomass resources in rural areas of north China, i.e. corn stalk, wheat stalk, ...

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Kinetic study of catechin extracted from Areca catechu seeds using green extraction method

14.04.2014 | Muhammad Syafiq Hazwan Ruslan, Theivanan Ganeson, Manzurudin Hasan, Zuhaili Idham, Siti Hamidah Mohd Setapar, Muhamm ..., Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Catechin that is known for its antioxidant, antihypertension and anticancer properties can be obtained from Areca catechu. In this study, accelerated water extraction (AWE) method was used to extract catechin from A. catechu seeds. The extraction parameters tested were temperature ...

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Utilization of industrial waste electric arc furnace dust as iron oxide sorbent for hydrogen sulfide removal

14.04.2014 | Danlin Zeng, Shenglan Liu, Guanghui Wang, Jianghua Qiu, Hongxiang Chen, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Leaching iron from the electric arc furnace dust by using sulfuric acid to prepare iron oxide sorbent for H2S removal was studied in this paper. The influences of sulfuric acid concentration, reaction temperature and the dosage of hydrochloric acid on the iron leaching yield were ...

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Synthesis and characterization of isocyanate‐functionalized hyperbranched polyurethane and its cocuring with benzoxazine

11.04.2014 | Yuhong Liu, Xiying Zhang, Ning Gao, Polymer Engineering and Science, 2014

In the study, isocyanate‐functionalized hyperbranched polyurethane (HPUNCO) with a degree of branch of 35.2% was synthesized via an A2 + B3 method. This novel HPUNCO was used to fabricate a blend system with hydroxyl groups bearing benzoxazine precursor (BZOH) to investigate its effective on ...

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Preparation of polypropylene and polystyrene with NCO and NH2 functional groups and their applications in polypropylene/polystyrene blends

11.04.2014 | Hao Li, Xian‐Ming Zhang, Shi‐Yang Zhu, Wen‐Xing Chen, Lian‐Fang Feng, Polymer Engineering and Science, 2014

Isocyanate‐ and amine‐functionalized polypropylene (PP) and polystyrene (PS) were prepared through grafting and copolymerization method. These compounds are used as precursors for PP‐graft‐PS (PP‐g‐PS) copolymers and reacted at the matrix interface of PP/PS blends. Functionalized polymer ...

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Comparison of combustion behaviors and pollutant emissions using bituminous coal and corncob in a fluidized bed combustor

10.04.2014 | Feng Duan, Chien‐Song Chyang, Jim Tso, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT The combustion behaviors and pollutant emissions of corncob and bituminous coal in a pilot scale vortexing fluidized bed combustor was compared. The flue gas recirculation combustion mode was used in this study. The effects of operating parameters, such as stoichiometric oxygen ratio, ...

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Surface decoration of electrospun scaffolds by microcontact printing

10.04.2014 | Sara M. Giannitelli, Franca Abbruzzese, Pamela Mozetic, Adele De Ninno, Luca Businaro, Annamaria Gerardino, Alberto ..., Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Microcontact printing has emerged as one of the most straightforward methods of surface patterning and has been successfully employed to obtain biologically instructive substrates for a wide range of tissue engineering applications. However, although a consolidated success has been ...

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Effects of acid treatments on bamboo cellulose nanocrystals

10.04.2014 | Peng Peng Zhang, Dong Shen Tong, Chun Xiang Lin, Hui Min Yang, Zhe Ke Zhong, Wei Hua Yu, Hao Wang, Chun Hui Zhou, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT The production of nanocellulose with controlled structure from plant sources with easy availability and good sustainability is very important in science and engineering. In this work, the isolation of cellulose from bamboo and the effects of the hydrolysis of different acids on the ...

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