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A Data‐Driven Fault Detection Approach with Performance Optimization

18.08.2017 | Linlin Li, Steven X. Ding, Kaixiang Peng, Huayun Han, Ying Yang, Xu Yang, The Canadian Journal of Chemical Engineering, 2017

Abstract This paper is concerned with the data‐driven realization of fault detection approach with performance optimization. For our purpose, the data‐driven realization form of linear kernel representations is studied first, which is essential in our work. It is followed by a data‐driven ...

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Hydrodynamic Design of Multi‐Zone Circulating Reactors Using CFD

18.08.2017 | Reza Marandi, Mohammadmahdi Kamyabi, Navid Mostoufi, The Canadian Journal of Chemical Engineering, 2017

ABSTRACT A 3D model was developed for simulating the hydrodynamics of polypropylene powders in multi‐zone circulating reactors (MZCRs). This model was used to design the proper geometry of the reactor. The model was based on computational fluid dynamics (CFD) in which an Eulerian‐Eulerian ...

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Degradation of Bisphenol A by the UV and UV/H2O2 Processes: Evaluation of Process Variables through Experimental Design

18.08.2017 | Leandro Goulart de Araujo, Flaviane da Silva Santos, Antonio Carlos Silva Costa Teixeira, The Canadian Journal of Chemical Engineering, 2017

ABSTRACT UV‐based technologies have been proposed for the treatment of wastewater containing bisphenol A (BPA), a toxic, endocrine‐disruptor pollutant. Nevertheless, the evaluation of the role of process variables through experimental design has not been previously addressed. In this study, ...

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Diagnosis of disturbance in distillation process based on inversion method

18.08.2017 | Wende Tian, Huiting Liang, Guixin Zhang, Asia-Pacific Journal of Chemical Engineering, 2017

Abstract Many difficulties are encountered when analyzing hard‐to‐identify underlying causes of disturbances in distillation processes. Direct model‐based fault diagnosis methods often prove to be time‐consuming because they iteratively solve the direct model to obtain representative ...

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Preparation of periclase (MgO) nanoparticles from dolomite by pyrohydrolysis–calcination processes

18.08.2017 | Mahmut Altiner, Mehmet Yildirim, Asia-Pacific Journal of Chemical Engineering, 2017

Abstract Dolomite is one of the most important resources for producing periclase (MgO) nanoparticles, which are of highly demanded in many industrial applications. For that reason, this study investigated to prepare MgO nanoparticles from dolomite through pyrohydrolysis–calcination processes. ...

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Continuous Hydrogenation of L‐Arabinose and D‐Galactose in a Mini Packed Bed Reactor

17.08.2017 | Anne Müller, Gerd Hilpmann, Stefan Haase, Rüdiger Lange, Chemical Engineering & Technology, 2017

Abstract The continuous hydrogenation of a mixture of L‐arabinose and D‐galactose over a Ru/C catalyst was investigated in a miniaturized packed bed reactor. The reaction is one important step of the transformation process of the naturally occurring hemicellulose arabinogalactan (AG) into ...

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Fabrication of polyimide hollow fiber membrane with well‐defined adsorption channels and binding sites for organics separation

16.08.2017 | Ligang Lin, Hui Sun, Qi Cheng, Kai Huang, Zhifu He, Tiantian Zheng, Yuzhong Zhang, Polymer Engineering and Science, 2017

Significant attention has been focused in developing polymeric membranes with special separation function. Disclosed herein is the design of a solvent resistant hollow fiber membrane with multi architectures including self‐supported passageway, three‐dimensional adsorption channels, and binding ...

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Thermal hazard investigation of a pharmaceutical intermediate

12.08.2017 | Ralph Zhao, Dan Muzzio, Tom Vickery, Elizabeth Fisher, Laura Artino, Jay Yin, Joe Hinksmon, Adam Fine, Process Safety Progress, 2017

During the process development of a pharmaceutical advanced intermediate, new chemistry using an aqueous workup resulted in the discovery of a new hydrated crystal form of this intermediate. This hydrated crystal form showed thermal instability at a relatively low temperature compared to the ...

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Study of the Effect of the Operating Parameters on the Separation of Bioactive Compounds of Palm Oil by Ultra‐High Performance Supercritical Fluid Chromatography using a Design of Experiments Approach

11.08.2017 | Luciana de Souza Guedes, Isabel Cristina Sales Fontes Jardim, Lucília Vilela de Melo, Marisa Massumi Beppu, Márcia C ..., The Canadian Journal of Chemical Engineering, 2017

ABSTRACT In this study, an analytical method based on Design of Experiments and response surface methodology for the separation of lycopene, beta‐carotene, coenzyme Q10 and lutein was developed by ultra‐high performance supercritical fluid chromatography technique. A Central Composite Design ...

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Pyrolysis of Sugarcane Bagasse in a Fixed Bed Reactor: Influence of Operational Conditions in the Distribution of Products

11.08.2017 | GONÇALVES Edvan Vinícius, TEODORO Carlos, SEIXAS Fernanda Lini, CANESIN Edmilson Antonio, SCALIANTE Mara Heloisa Nev ..., The Canadian Journal of Chemical Engineering, 2017

ABSTRACT This work evaluated experimentally the pyrolysis of sugarcane bagasse in a fixed bed reactor in order to obtain products useful in energy applications. The raw material was characterized to understand its behaviour during the thermal degradation process. The effects of operating ...

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