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Influence of emulsification methods and use of colloidal silicon dioxide on the microencapsulation by spray drying of turmeric oleoresin in gelatin‐starch matrices

21.08.2016 | Sungil Ferreira, Cassia R. Malacrida, Vania R. N. Telis, The Canadian Journal of Chemical Engineering, 2016

ABSTRACT Microencapsulated turmeric oleoresin can present improved curcumin stability and be easily applied in hydrophilic systems. Most of the microencapsulation techniques rely on the initial emulsification of the core material in the wall biopolymers and this step affects the encapsulation ...

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Properties of flocs in sludge conditioning by a novel amphoteric polymer with different anionic degrees

20.08.2016 | Liang Qi, Xia You, Jian‐Hua Cheng, Yong‐You Hu, Polymer Engineering and Science, 2016

This paper aimed to examine how the amphoteric conditioner poly (acrylamide‐′acryloyloxyethyl trimethyl ammonium chloride −2‐acrylamido‐2‐methyl‐propane sulfonate) (PADA) with different anionic degrees (AD) affected the properties of sludge flocs in the conditioning. The floc properties were ...

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Estimation of methylene blue index in oil sands tailings using hyperspectral data

20.08.2016 | Iman Entezari, Benoit Rivard, Mike G. Lipsett, The Canadian Journal of Chemical Engineering, 2016

Abstract Clay minerals constitute a significant fraction of oil sands tailings; and clay mineralogy, abundance, and morphology can dramatically affect the strength of the tailings during consolidation. The ability of clays to expand or swell in the presence of water is of importance in ...

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Polyimide‐carbon nanotubes nanocomposites: electrical conduction behavior under cryogenic condition

18.08.2016 | Lalatendu Nayak, Mostafizur Rahaman, Ali Aldalbahi, Tapan Kumar Chaki, Dipak Khastgir, Polymer Engineering and Science, 2016

This study is aimed to investigate the electrical conduction behavior of polyimide (PI)/multiwall carbon nanotubes (CNTs) nanocomposites in cryogenic environment (temperature from 10 to 300 K) prepared by in‐situ polymerization technique. The experimental results of direct current (DC) ...

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Thorium (IV) phosphate‐polyaniline composite‐based hydrophilic membranes for bending actuator application

18.08.2016 | Ajahar Khan, Inamuddin, Ravi Kant Jain, Abdullah M. Asiri, Polymer Engineering and Science, 2016

In the present study, ionic polymer metal composite (IPMC) membrane actuator based on triple‐layered thorium(IV) phosphate/polyaniline/Pt (ThP‐PANI‐Pt) was prepared via consecutive solution recasting and electroless plating methods. The triple layered membrane is composed of thorium(IV) ...

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Iterative method for frequency domain identification of continuous processes with delay time

17.08.2016 | Qibing Jin, En He, Qi Wang, Beiyan Jiang, The Canadian Journal of Chemical Engineering, 2016

ABSTRACT Delay time that affects the performances of many control synthesis techniques in controlled systems is common in most chemical industries. Estimating the delay time is also a difficult problem in identification field. In this paper, aiming at continuous processes with delay time, an ...

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Optimization of bioreactor operating conditions using computational fluid dynamics techniques

17.08.2016 | Daniela M. Koerich, Leonardo M. Rosa, The Canadian Journal of Chemical Engineering, 2016

Abstract High hydraulic retention times are commonly used in bioreactors, as they provide greater contact time between substrate and biomass. These reactors also operate at low flow rates to minimize damage to the biomass due to shear stress and drag. However, a high flow rate provides ...

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Mass Transfer and Liquid‐Film Formation in a Spray Tower for SO2 Removal in Sodium Hydroxide Solution

16.08.2016 | Milene Costa Codolo, Waldir Antonio Bizzo, Chemical Engineering & Technology, 2016

Abstract Spray towers allow for controlling air pollution in which a liquid is sprayed in small droplets to produce a large interfacial area for mass transfer between a gas and a liquid phase. An experimental study of a spray tower for removing SO2 is described. The experiments were carried ...

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Kinetic Studies on an Algal Biofilm Reactor for Raw Sewage Water Treatment

16.08.2016 | S.Gera Gayatri, Yewalkar Swati N., Nene Sanjay, Kulkarni Bhaskar D., Kamble Sanjay; Gayatri S. Gera, Swati N. Yewalk ..., Chemical Engineering & Technology, 2016

Abstract A packed‐bed algae biofilm reactor was developed using porous and nonporous dual packings. The biofilm was cultivated on reticulated polyurethane foam cubes. The nonporous glass Raschig rings were taken as bed support that helps to remove generated gas from the system. The effect of ...

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Effect of bed height on the performance of a fixed Mo/HZSM‐5 bed in direct aromatization of methane

15.08.2016 | Yuebing Xu, Yang Song, Xiaohao Liu, Zhan‐Guo Zhang, Chemical Engineering & Technology, 2016

Abstract The catalyst‐overloading strategy is often adopted to extend the catalytic lifetime of fixed catalyst bed reactors in chemical processes. Confirmation of the adoptability of this strategy to Mo/HZSM‐5 catalyst effective for the non‐oxidative methane dehydroaromatization was made for ...

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