Diwakar Shende

VNIT, Nagpur, CHEMICAL ENGINEERING, Faculty Member

Followers

Following

Co-authors

Public Views

Interests

Uploads

Papers by Diwakar Shende

Reactive Crystallization of Calcium Oxalate: Population Balance Modeling

Chemical and Biochemical Engineering Quarterly, 2018

Reactive crystallization of calcium oxalate has been studied to determine particle size distribut... more Reactive crystallization of calcium oxalate has been studied to determine particle size distribution for calcium oxalate precipitation using population balance model with method of moments. The model is formulated and tested for single feed semi-batch reactive crystallization of calcium oxalate with reactants calcium chloride and sodium oxalate with literature data. The simulated results include local supersaturation distribution, number of particle distribution, mass of particle crystallized, particle size, nucleation and growth rate during the process. The model results are in good agreement with available experimental data from literature.

Download

Separation of fuel additive levulinic acid using toluene, xylene, and octanol from water stream

Journal of the Indian Chemical Society

Hydrogenation of 2-ethylanthraquinone with Pd supported on hollow ceramic microsphere catalyst: An experimental and kinetic study

Chemical Engineering Department, Vidyasagar National Institute of Technology Nagpur, Nagpur-440 0... more Chemical Engineering Department, Vidyasagar National Institute of Technology Nagpur, Nagpur-440 010, Maharashtra, India Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-40019, India E-mail: ab.pandit@ictmumbai.edu.in Manuscript received online 10 April 2020, accepted 08 June 2020 The catalytic hydrogenation of 2-ethylanthraquinone in the anthraquinone process of production of hydrogen peroxide gaining more interest to meet environmental demands of hydrogen peroxide as green oxidant. Noble metal palladium becomes a new category of catalyst due to their significant applicability in the catalytic hydrogenation reactions. Herein, wet impregnation method was used for synthesis of palladium supported on hollow ceramic microsphere catalysts. The palladium supported on hollow ceramic microsphere exhibits high catalytic selectivity, activity and stability in the liquid phase hydrogenat...

Download

Progress and prospective of heterogeneous catalysts for H2O2 production via anthraquinone process

Environmental Science and Pollution Research

This paper reviews the improvement in the field of catalytic hydrogenation of 2-ethylanthraquinon... more This paper reviews the improvement in the field of catalytic hydrogenation of 2-ethylanthraquinone to 2-ethylanthrahydroquinone for the successful production of hydrogen peroxide. Hydrogen peroxide is being used in almost all industrial areas, particularly in the chemical industry and in environmental protection, as the most promising oxidant for cleaner and environmentally safer processes. A variety of hydrogenation catalysts have been introduced for hydrogenation of 2-ethylanthraquinone in the production of hydrogen peroxide via anthraquinone (AQ) process. The aim of the present study is to describe the catalysts used in the hydrogenation of 2-ethylanthraquinone and the reaction mechanism involved with different catalytic systems. The hydrogenation of 2-ethylanthraquinone using metals, alloy, bimetallic composite, and supported metal catalyst with the structural modifications has been incorporated for the production of hydrogen peroxide. The comprehensive comparison reveals that the supported metal catalysts required lesser catalyst amount, produced lower AQ decay, and provided higher catalyst activity and selectivity. Furthermore, the replacement of conventional catalysts by metal and metal alloy-supported catalyst rises as a hydrogenation trend, enhancing by several times the catalytic performance.

Download

Separation of Succinic acid from Aqueous Phase using Nontoxic Solvents

Chemical Data Collections

Reactive Extraction of Phenylacetic Acid with Tri- n -butyl Phosphate in Benzene, Hexanol, and Rice Bran Oil at 298 K

Journal of Chemical & Engineering Data, 2013

ABSTRACT Phenylacetic acid extraction from an aqueous system gets consideration because of its ex... more ABSTRACT Phenylacetic acid extraction from an aqueous system gets consideration because of its extensive uses in the production of β-lactam antibiotics. In the present paper, reactive extraction has been investigated for the removal of phenylacetic acid by tri-n-butyl phosphate from the aqueous phase in benzene, hexanol, and rice bran oil as diluents. Reactive extraction data were discussed in terms of overall distribution coefficients (Do), loading ratio (), degree of extraction (η %), and equilibrium complexation constants (Eαβ). The mass action law model was used to represent equilibrium of reactive extraction of phenylacetic acid–tri-n-butyl phosphate. Also the results on water coextraction have been presented. A further extensive discussion on toxicity, back extraction, and regeneration was given. It is a first kind of study for the removal of phenylacetic acid from the aqueous phase by reactive extraction using tri-n-butyl phosphate in benzene, hexanol, and rice bran oil.

Liquid-liquid extraction of lactic acid using non-toxic solvents

Chemical Data Collections

Synthesis, characterization and application of 1-butyl-3-methylimidazolium tetrafluoroborate for extractive desulfurization of liquid fuel

Arabian Journal of Chemistry, 2016

1-Butyl-3-methylimidazolium thiocyanate [BMIM]SCN has been presented on extractive desulfurizatio... more 1-Butyl-3-methylimidazolium thiocyanate [BMIM]SCN has been presented on extractive desulfurization of liquid fuel. The FTIR, 1H-NMR, and C-NMR have been discussed for the molecular confirmation of synthesized [BMIM]SCN. Further, thermal, conductivity, moisture content, viscosity, and solubility analyses of [BMIM]SCN were carried out. The effects of time, temperature, sulfur compounds, ultrasonication, and recycling of [BMIM]SCN on removal of dibenzothiophene from liquid fuel were also investigated. In extractive desulfurization, removal of dibenzothiophene in n-dodecane was 86.5 % for mass ratio of 1:1 in 30 min at 30 °C under the mild process conditions. [BMIM]SCN could be reused five times without a significant decrease in activity. Also, in the desulfurization of real fuels, multistage extraction was examined. The data and results provided in the present paper explore the significant insights of imidazolium-based ionic liquids as novel extractant for extractive desulfurization of...

Download

Rebuttal to “Questionable Green Ionic Liquid: Comment on ‘Extractive Desulfurization of Liquid Fuels by Energy Efficient Green Thiazolium based Ionic Liquids’”

Industrial & Engineering Chemistry Research, 2015

Synthesis, Characterization and Application of 1-Butyl-3 Methylimidazolium Chloride as Green Material for Extractive Desulfurization of Liquid Fuel

The Scientific World Journal, 2013

The possible application of imidazolium ionic liquids as energy-efficient green material for extr... more The possible application of imidazolium ionic liquids as energy-efficient green material for extractive deep desulfurization of liquid fuel has been investigated. 1-Butyl-3-methylimidazolium chloride [BMIM]Cl was synthesized by nucleophilic substitution reaction of n-methylimidazolium and 1-chlorobutane. Molecular structures of the ILs were confirmed by FTIR, 1 H-NMR, and 13 C-NMR. The thermal properties, conductivity, solubility, water content and viscosity analysis of [BMIM]Cl were carried out. The effects of reaction time, reaction temperature, sulfur compounds, and recycling of IL without regeneration on dibenzothiophene removal of liquid fuel were presented. In the extractive desulfurization process, the removal of dibenzothiophene in n-dodecane using [BMIM]Cl was 81% with mass ratio of 1 : 1, in 30 min at 30 ∘ C under the mild reaction conditions. Also, desulfurization of real fuels with IL and multistage extraction were studied. The results of this work might offer significant insights in the perceptive use of imidazoled ILs as energy-efficient green material for extractive deep desulfurization of liquid fuels as it can be reused without regeneration with considerable extraction efficiency.

Download

Butanol recovery Ionic liquids as green solvents

Journal of Chemical Technology & Biotechnology

Effect of aluminium nanoparticles on rheology of AP based composite propellant: experimental study and mathematical modelling

Molecular Simulation

Palladium supported on nano-hybrid Zr–Al–La catalyst for hydrogenation of 2-ethylanthraquinone

Indian Chemical Engineer

Optimization and experimental design by response surface method for reactive extraction of glutaric acid

International Journal of Chemical Reactor Engineering

Glutaric acid is an attractive chemical compound which can be used for the manufacturing of polye... more Glutaric acid is an attractive chemical compound which can be used for the manufacturing of polyesters, polyamides, and polyols. It can be produced by the synthesis (chemical method) and fermentation (biological method) process. Glutaric acid is presented with the lowest quantity in the fermentation broth and industrial waste streams. The separation methods of glutaric acid are difficult, costly, and non-environment friendly from fermentation broth. Reactive separation is a simple, cheapest, and environment-friendly process for the recovery of carboxylic acid. Which can be employed for the separation of glutaric acid with lower cost and environment-friendly process. In this study, response surface methodology (RSM) was used as a mathematical technique to optimize and experimental design for investigation of the reactive separation of glutaric acid from the aqueous phase. As per RSM study, 20 experiments with different independent variables such as concentration of glutaric acid, % v...

Investigations on Reactive Extraction of Butyric Acid Using Tri-n-Octyl Amine in Various Biodiesels

SSRN Electronic Journal

Synthesis of copper-coated ceramic core–shell cenosphere in fluidized bed reactor using H2/N2 gas for thermal reduction

Materials Today: Proceedings

Separation of Levulinic Acid by Reaction with Tri-n-butylphosphate Diluted in Nontoxic Solvents

Journal of Chemical & Engineering Data

Experimental investigation on cenosphere-based paper battery and electrochemical battery

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects

Intensification of hydrogen generation through liquid metal gallium in water splitting reaction using aluminum in presence of potassium hydroxide

Chemical Engineering Communications

Hydrogen Generation in Water Splitting Reaction Using Aluminum: Effect of NaOH Concentration and Reaction Modelling Using SCM

energyo

Diwakar Shende

Uploads

Papers by Diwakar Shende

Log In