Chemical Engineering (CE): Recent submissions
Now showing items 1-20 of 167
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Structure and rheology of lyotropic liquid crystalline suspensions
Suspensions in the form of solid–liquid dispersions are encountered in several industrial applications. Household detergents and processed foods can be modeled as a suspension of phase-separated or externally added particulate ... -
Vapour phase catalytic hydrogenation of aniline
A very large effort has been directed towards heterogeneous catalysis and establishing the proper form for equations that express the rate of surface reactions as a function of system variables. These equations range ... -
Heterogeneous catalytic oxidation of isobutylene in vapour-phase Ph.D. Thesis
Kinetics of the catalytic vapour-phase oxidation of isobutylene to methacrolein, an important raw material for polymer industries, was investigated in a fixed-bed isothermal flow reactor. Out of a number of catalysts ... -
Studies in the oxidation of benzene
Oxidation as an important unit process having considerable promise has been highlighted. A new process of phenol manufacture based on the direct oxidation of benzene as opposed to the multi-stage processes (like Scientific ... -
Dehydrogenation of cyclohenxanol to cyclohexanone
The dehydrogenation of cyclohexanol to cyclohexanone has been studied in detail. The thermodynamic equilibrium constants at various temperatures have been collected from literature and the equilibrium conversions have been ... -
Studies in hydrodynamic and electrohydrodynamic instabilities of fluid-solid and fluid- fluid interfaces
The study of hydrodynamic and electrohydrodynamic stability is an important branch of fluid mechanics and has applications in various areas of chemical engineering and biophysics. The detailed study of hydrodynamic stability ... -
Modeling of phase inversion phenomenon
Turbulent liquid–liquid dispersions are frequently encountered in the chemical industry in various operations such as liquid–liquid extraction, liquid–liquid reactions, polymerization, and direct contact heat transfer. ... -
Studies on the catalytic hydrogenation of salicyloyl chloride
In the present work, catalytic hydrogenation of salicyloyl chloride to salicylaldehyde by Rosenmund reduction using Pd-C catalysts was extensively studied. A stirred slurry reactor was used for studying this reaction. The ... -
Polymerization in supercritical fluids
The chemical industry has become increasingly aware of environmental concerns over the use of volatile and hazardous organic solvents to synthesize commercial polymers. Attractive properties of supercritical fluids make ... -
Oxidation of alkyl aromatics Part II : oxidation of toluene to benzoic acid in presence of promoters
The investigation on the catalytic vapour-phase oxidation of toluene in the presence of gaseous promoters was taken up to determine the operating conditions favourable for the maximum conversion to benzoic acid. The effects ... -
Nurbs-Based Mesh-Free and Finite Element Methods in Computational Mechanics
A family of new mesh-free and mesh-based methods is developed and explored in the context of linear and nonlinear boundary and initial value problems of typical interest in engineering mechanics. A common feature in these ... -
Phase transitions of fluids confined in nanopores
Confined nanoscale fluids occur in many technologically important phenomenon such as boundary lubrication, adsorption, adhesion and catalysis. Fluids confined at these length scales are spatially inhomogeneous and fluid ... -
Linear stability analysis of fluid flow adjacent to a flexible surface
Fluid flow adjacent to a flexible surface is often encountered in biological systems and bio-technological processes. These flows have been analyzed using models similar to those for the flow past a rigid surface, but the ... -
Studies of instabilities in particulate suspensions
The focus of this project is to study the dynamics of particulate suspensions. This study is divided into two parts. Part one focuses on the dynamics of self-propelled particles, such as microorganisms. The dynamics of ... -
Frictional-kinetic models for steady cohesionless granular flow through a wedge-shaped hopper
The present work attempts to combine a newly developed kinetic constitutive theory with an older frictional theory to model.the two-dimensional gravity flow of a cohesionless granular material such as sand through a ... -
Kinematics and Rheology of Complex Fluids: Active Suspensions and Dry Granular Materials
This work focuses on two problems in complex fluids, namely collective dynamics of suspensions of self-propelled particles and the rheology of dry granular materials. In both systems, interaction between the particles is ... -
Studies in the computation of thermodynamics
Thermodynamic properties of substances like entropy and enthalpy are important in the study and design of the processes involving liquefaction, solidification, refrigeration, heat transfer, gas separation, and in chemical ... -
Studies on hydrodynamics and liquid-solid contacting in trickle-bed reactors
In trickle-bed reactors, gas and liquid flow concurrently downwards over fixed beds of catalysts. The reactors find wide application for three-phase contacting in chemical, petrochemical, petroleum and fermentation industries, ...