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Adsorption diffusion behaviour of 4,6‐DMDBT from diesel fuel

24.09.2016 | Meiqin Zheng, Chengzhi Xu, Hui Hu, Zhuoliang Ye, Xiaohui Chen, The Canadian Journal of Chemical Engineering, 2016

ABSTRACT The equilibrium and kinetics of adsorption desulphurization of model diesel fuel under different operating conditions were investigated. The homogeneous surface diffusion model (HSDM) and pore diffusion model (PDM) taking into account external resistance and intraparticle resistance ...

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Effects of argon as the primary impurity in anthropogenic carbon dioxide mixtures on the decompression wave speed

24.09.2016 | K.K. Botros, J. Geerligs, B. Rothwell, T. Robinson, The Canadian Journal of Chemical Engineering, 2016

Abstract In order to determine the material fracture resistance necessary to provide adequate control of the propagation of ductile fracture in a pipeline, a knowledge of the decompression wave speed (W) following the quasi‐instantaneous formation of an unstable, full‐bore rupture is ...

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Development and properties evaluation of bio‐based PLA/PLGA blend films reinforced with microcrystalline cellulose and organophilic silica

23.09.2016 | Fernanda Abbate dos Santos, Gisele Cristina Valle Iulianelli, Maria Inês Bruno Tavares, Polymer Engineering and Science, 2016

The preparation and properties of hybrid materials based on poly(lactic acid)/poly(lactic acid‐co‐glycolic acid) (PLA/PLGA) blends using microcrystalline cellulose (MCC) and organophilic silica (R972) as fillers have been investigated. Hybrid materials were manufactured by solution casting using ...

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Depolymerization of waste polybutylene terephthalate in hot compressed water in a fused silica capillary reactor and an autoclave reactor: Monomer phase behavior, stability, and mechanism

23.09.2016 | Junliang Wang, Ke Bei, Zhichao Hu, Yingping Liu, Yanpei Ma, Yuan Shen, I‐Ming Chou, Zhiyan Pan, Polymer Engineering and Science, 2016

Depolymerization is a potentially viable means of recycling waste polymers, converting them back into monomers or other useful compounds. Terephthalic acid (TPA) and 1,4‐butanediol (1,4‐BD) are the depolymerization monomer products of polybutylene terephthalate. Their yields from ...

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Surface roughness and foam morphology of cellulose acetate sheets foamed with 1,3,3,3‐tetrafluoropropene

21.09.2016 | Christian Hopmann, Sven Hendriks, Claudia Spicker, Stefan Zepnik, Frank van Lück, Polymer Engineering and Science, 2016

Cellulose acetate (CA) is a bio‐based polymer suitable to replace foamed polystyrene (PS) in packaging applications. Foam trays can be produced by thermoforming of extruded sheets foamed with physical blowing agents. In this paper, the effects of various process settings and the calibration of ...

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Ultrasound‐assisted synthesis of Cu and Cu/Ni nanoparticles on NaP zeolite support as antibacterial agents

21.09.2016 | Jamshid Behin, Ali Shahryarifar, Hossein Kazemian, Chemical Engineering & Technology, 2016

Abstract In the present work, synthesis, characterization and antibacterial properties of Cu and Cu/Ni nanoparticles loaded on NaP zeolite are investigated against Bacillus subtilis and Escherichia coli. NaP zeolite obtained by conventional hydrothermal conversion of natural clinoptilolite. ...

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Continuous and Intensified Laboratory Process Development at Clariant

21.09.2016 | Dennis Heitmann, Chemical Engineering & Technology, 2016

Abstract The conversion of batch processes towards continuous operating regimes offers various advantages in terms of safety, efficiency, product quality and production costs. The industrial process development has to be also adapted for this purpose. The focus will be drawn in this essay to ...

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Process Simulation of Palm Fatty Acid Distillate based Biodiesel Plant using Homogenous and Heterogeneous Catalysts

21.09.2016 | Parminder Kaur, K. S. Heer, Vilas G. Gaikar, Chemical Engineering & Technology, 2016

Abstract A continuous biodiesel production process from palm fatty acid distillate (PFAD) is simulated in Aspen Plus for process engineering aspects bringing out the critical points in the entire process. The production process consists of acid catalyzed hydrolysis of residual glycerides of ...

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Aeration of liquid‐liquid systems with use of various agitators in mixer equipped with membrane diffuser

21.09.2016 | Waldemar Szaferski, Piotr Tomasz Mitkowski, Chemical Engineering & Technology, 2016

Abstract Efficiency of the aeration of liquid mixtures is essential in many biochemical and chemical processes. In this work the analysis of power requirement needed to obtain three phase gas‐liquid‐liquid systems containing air, mineral oil and water, as modelling mixture, is presented. The ...

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H2 separation using pressed clinoptilolite and mixed copper‐clinoptilolite disk membranes

17.09.2016 | Afrooz Farjoo, Adolfo M. Avila, Steven M. Kuznicki, The Canadian Journal of Chemical Engineering, 2016

Abstract Disk membranes machined from high‐purity natural clinoptilolite rocks demonstrated promising hydrogen separation efficiency. However, these membranes cannot be adequately scaled up. To overcome this and provide process flexibility, mixed matrix membranes are required pairing small ...

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