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4,310 Newest Publications from the industry chemical engineering
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Novel foam injection molding technology using carbon dioxide‐laden pellets
31-05-2011 | Lee, Jungjoo; Turng, Lih‐Sheng; Dougherty, Eugene; Gorton, Patrick, Polymer Engineering and Science, 2011
Abstract Injection molding of foamed components typically uses chemical blowing agents (CBAs) or physical blowing agents (PBAs) to produce a cellular or microcellular structure. A CBA can be easily and directly mixed with plastic pellets and fed into the molding machine through the hopper ...
Micellar polymerization, characterization, and viscoelasticity of combined thermally insensitive terpolyacrylamides
31-05-2011 | Rodríguez, Fátima Pérez; Jiménez‐Regalado, Enrique J., Polymer Engineering and Science, 2011
Abstract Polymer chains consisting of water‐soluble polyacrylamides and N‐isopropylacrylamide (NIPAM), hydrophobically modified with low amounts of N,N‐dialkylacrylamides (N,N‐dioctylacrylamide) have been prepared via free radical micellar polymerization, using a hydrophobic initiator ...
Experimental, modelling and optimisation of asphaltene deposition and adsorption in porous media
31-05-2011 | Kariznovi, Mohammad; Nourozieh, Hossein; Abedi, Jalal; Jamialahmadi, Mohammad; Shahrabadi, Abbas, The Canadian Journal of Chemical Engineering, 2011
Abstract The deposition of asphaltene is considered to be one of the most difficult problems during oil production. Asphaltene deposition in the reservoir is a complex problem; and, due to the depth of reservoirs, it is impossible to do field experiments. Thus, to study the effects of ...
Experimental, modelling and optimisation of asphaltene deposition and adsorption in porous media
31-05-2011 | Kariznovi, Mohammad; Nourozieh, Hossein; Abedi, Jalal; Jamialahmadi, Mohammad; Shahrabadi, Abbas, The Canadian Journal of Chemical Engineering, 2011
Abstract The deposition of asphaltene is considered to be one of the most difficult problems during oil production. Asphaltene deposition in the reservoir is a complex problem; and, due to the depth of reservoirs, it is impossible to do field experiments. Thus, to study the effects of ...
Comparing top entry versus side entry agitator performance in low viscosity blending
31-05-2011 | Kehn, Richard Oliver, The Canadian Journal of Chemical Engineering, 2011
Abstract The primary purpose of this study was to quantify the difference in performance of side entering versus top entering agitators in low viscosity blending on the lab scale. This study compared the power requirement of top entry versus side entry agitator set ups to yield the same ...
Investigation of the mechanism of low‐density particle and liquid mixing process in a stirred vessel
31-05-2011 | Chen, Tao; Wang, Le‐Qin; Wu, Da‐Zhuan; Sun, You‐Bo; Wu, Bo; Li, Zhi‐Feng, The Canadian Journal of Chemical Engineering, 2011
Abstract In order to investigate the mechanism of the low‐density solid particle and liquid mixing process, a specialised agitator structure was used. Both computational fluid dynamics simulation and experiments were carried out to study the two‐phase mixing characteristics in the stirred ...
Frequency domain tuning approach for adaptive feedforward control using lead–lag compensators
31-05-2011 | Siddha, Ramarao; Gilbert, A. F.; Natarajan, K., The Canadian Journal of Chemical Engineering, 2011
Abstract The tuning of lead–lag compensators to be used as feedforward controllers for measured disturbances is performed in the frequency domain. The identification of process Gu and disturbance dynamics Gd uses extended recursive least squares, and the frequency responses are calculated ...
Preparation and properties of sulfonated poly(phthalazinone ether sulfone ketone)/tungsten oxide composite membranes
31-05-2011 | Wang, Suwen; Dong, Feilong; Li, Zhongfang; Jin, Lei, Asia-Pacific Journal of Chemical Engineering, 2011
Abstract Sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK)‐based composite membranes doped with hydrated tungsten oxide were prepared and studied for proton‐exchange membrane applications. Hydrated tungsten oxide (WO3· 2H2O) was synthesized from acidic hydrolysis of sodium ...
Cobalt zeolites: Preparation, characterization and catalytic properties for N2O decomposition
31-05-2011 | Shen, Qun; Li, Landong; He, Chi; Zhang, Xinyan; Hao, Zhengping; Xu, ZhiPing, Asia-Pacific Journal of Chemical Engineering, 2011
Abstract The current research characterized various Co/zeolite catalysts prepared by wet incipient impregnation approach and investigated their N2O catalytic decomposition activities. The Co/zeolite catalysts were characterized by BET, H2‐TPR, UV–vis, NH3‐TPD and TEM in detail, which ...
Investigations on hydrodynamics of multilayer Π‐type radial flow reactors
31-05-2011 | Li, Ruijiang; Zhu, Zibin, Asia-Pacific Journal of Chemical Engineering, 2011
Abstract Consisting of two or three different layers of catalyst or adsorbent, the multilayer radial flow reactor is a novel radial reactor with compact structure and high performance. In this article, pressure profiles in the flow channels and layers of a three‐layer radial flow reactor ...
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