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Novel multistage solid-liquid circulating fluidized bed： Hydrodynamic characteristics

Particuology 2018年第3期16卷 134-142页

作者： prakash V. chavan manjusha A. Thombare Sandip B. Bankar Dinesh V. Kalaga Veena A. Patil-Shinde Department of Chemical Engineering College of Engineering Bharati Vidyapeeth Deemed University Pune 411 043. India Department of Biotechnology and Chemical Technology School of Chemical Technology Alto University P.O. Box 16100. FI-00076 Aalto Finland Department of Chemical Engineering City College of New York CUNY NY USA

The present work proposes a novel radially cross-flow multistage solid-liquid circulating fluidized bed （SLCFB）. The SLCFB primarily consists of a single multistage column （having an inner diameter of 100 mm and length of 1.40 m）, which is divided into two sections wherein both the steps of utilization or loading （e.g., adsorption and catalytic reaction） and regeneration of the solid phase can be carried out simulta- neously in continuous mode. The hydrodynamic characteristics were studied using ion exchange resin as the solid phase and water as the fluidizing medium. The loading and flooding states were determined for three particle sizes; i.e,. 0.30, 0,42, and 0.61 ram. The effects of the superficial liquid velocity and solid feed rate on the solid hold-up were investigated under loading and flooding conditions. The solid hold-up increases with an increase in the solid feed rate and decreases with an increase in the superficial liquid velocity. An artificial-intelligence formalism, namely the multilayer perceptron neural network （mLPNN）, was employed for the prediction of the solid hold-up. The input space of mLPNN-based model consists of four parameters, representing operating and system parameters of the proposed SLCFB. The developed mLPNN-based model has excellent prediction accuracy and generalization capability.

关键词： Solid-liquid fluidized bed Solid-liquid circulating fluidized bed Hydrodynamics modeling

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1,2,3-Triazole tethered acetophenones: Synthesis, bioevaluation and molecular docking study

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Chinese Chemical Letters 2016年第7期27卷 1058-1063页

作者： mubarak H.Shaikh Dnyaneshwar D.Subhedar Vijay m.Khedkar prakash C.Jha Firoz A.Kalam Khan Jaiprakash N.Sangshetti Bapurao B.Shingate UGC-SAP and DST-FIST Sponsored Department of Chemistry Dr. Babasaheb Ambedkar Marathwada University School of Health Sciences University of Kwa Zulu Natal Westville Campus School of Chemical Sciences Central University of Gujarat Department of Pharmaceutical Chemistry Y. B. Chavan College of Pharmacy Dr. Rafiq Zakaria Campus

A small focused library of eighteen new 1,2,3-triazole tethered acetophenones has been efficiently prepared via click chemistry approach and evaluated for their antifungal and antioxidant *** antifungal activity was evaluated against five human pathogenic fungal strains：Candida albicans,Fusarium oxysporum,Aspergillus flavus,Aspergillus niger,and Cryptococcus *** the synthesized compounds,9c,9i,and 9p found to be more potent antifungal agents that the reference *** 1,2,3-triazole based derivatives were also evaluated for antioxidant activity,and compound 9h was found to be the most potent antioxidant as compared to the standard ***,molecular docking study of the newly synthesized compounds was performed and results showed good binding mode in the active site of fungal *** enzyme P450 cytochrome ***,the synthesized compounds were also analyzed for ADmE properties and showed potential as good oral drug candidates.

关键词： 1,2,3-Triazole Antifungal Antioxidant molecular docking ADmE prediction

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