Research Papers/Topics in Chemical Engineering

Electrocatalytic Oxidation Of Nitrites On Glassy Carbon Electrode Modified With Cobalt (Ii) Tetra-Carboxy Phthalocyanine/ Nitrogen Doped Graphene Oxide Nanosheets Composite

ABSTRACTThis research is based on the modification of a glassy carbon electrode with cobalt (II) tetra carboxy phthalocyanine and nitrogen doped graphene oxide nanosheets composite (CoTCPc/N-GONS) was used for the electrocatalytic oxidation of nitrites. The synthesised cobalt (II) tetra carboxy phthalocyanine (CoTCPc) and nitrogen doped graphene oxide nanosheets (N-GONS) were characterized by FTIR spectroscopy, UV-Vis spectroscopy, electrochemical impedance and cyclic voltammetry. The electro...

Kinetics Of Biodesulfurization Of Diesel And Kerosene

ABSTRACT The biodesulfurization of diesel and kerosene was investigated. Soil samples were taken at various points of the Ijora petroleum products haulage terminal, in Lagos, Nigeria. Microorganisms capable of selectively abstracting sulfur from diesel and kerosene without reducing their fuel values were isolated by using a sulfur-reducing selective medium. The choice of the sulfur selective reductive pathway is informed by the fact that it is sulfur specific and so the calorific value...

Correlation Of Equilibrium Data For Multicomponent Distillation Design

ABSTRACTThe most pertinent problem which must be solved in the design of multicomponent distillation process is the evaluation of the vapour-liquid equilibrium (VLE) ratio and enthalpy (liquid and vapour) values of each component in each of the stages. Good experimental data are not easily obtained but require considerable experimental skill, experience and patience. It is therefore of economical necessity to consider techniques for estimating vapour-liquid equilibrium and enthalpies da...

The Predictive Effects Of Filler Materials On The Mechanical Properties Of Flexible Polyurethane Foam

ABSTRACTIn this study, the use of purely inorganic filler materials to influence the mechanical properties of flexible polyurethane foam has been investigated. The fillers were calcite (CaCO3), dolomite (CaMg(CO))), and kaolin (ALSO(OH)) of volume fractions ranging from 0 - 40 wt%. Each of the filler content ranges was investigated at the following average particle size distributions: 0.06, 0.5, 3.5, 10, 20, and 841 um. The experiment was performed in a discontinuous foaming process bas...

Substrate Bioavailability And Biodegradation Of Naphthalene Anthracene And Pyrene On Contaminated Aqueous-Soil Matrix

ABSTRACTThe focus of this research work is the unraveling of the microbial dynamics of the biodegradation of a mixture of polycyclic aromatic hydrocarbons (PAH), naphthalene, anthracene and pyrone in an aqueous- soil matrix. The soil used in these studies was characterized as highly porous with a sandy-clay ratio of 85-14%. The microbial growth study was characterized by an initial lag phase, a rapid and an exponential increase in cell biomass, a stationary phase and finally a death pha...

Kinetic Modelling Of Complex Reforming Reaction Networks On Platinum – Alumina And Silica - Alumina Catalysts.

ABSTRACTThe kinetic analysis of three complex reaction networks of catalytic reforming reaction systems has been studied. The complex systems of reaction networks were first fashioned into a system of single reactions. Each single reaction is then delineated into a sequence of elementary reaction steps. The principles of rate determining step, steady state approximations and microscopic reversibility were then involved for necessary simplificationsKinetic and equilibrium parameters for m...

Simultaneous Electrochemical Detection Of Aspirin, Ibuprofen And Indomethacin Using Cobalt Tetra Amino Phenoxy Phthalocyanine Nanoparticles And Nitrogen Doped Carbon Nanodots Modified Electro

ABSTRACTCarbon nanodots (CNDs), nitrogen doped carbon nanodots (n-CNDs) and their composites with cobalt tetra aminophenoxy phthalocyanine nanoparticles (CoTAPhPcNPs) were employed towards the simultaneous detection of aspirin (ASA), ibuprofen (IBU) and indomethacin (INDO). The nanomaterials were characterized by FTIR, UV-Vis, TEM, cyclic voltammetry, electrochemical impedance spectroscopy, linear sweep voltammetry, chronoamperometry and differential pulse voltammetry. CoTAPhPcNPs/n-CNDs-GCE ...

Recurrent Neural Network

ABSTRACTThe quest for effective forecasting models to meet the ever growing electricity demand around the globe has heightened and taken a much challenging dimension that cuts across rural and urban communities in under-developed, developing and developed economies. Electric Load Forecasting which is the accurate prediction of both the magnitude and geographical distributions of electrical energy demand over the different periods of planning horizon has become a vital process in the planning ...

Mixed Culture Fermentation In The Hydrolysis Of Cereal Flour For The Production Of Industrial Biochemicals

ABSTRACTHydrolysis of a complex medium (whole-wheat flour) using a mixed culture ofAspergillus. awamori and Aspergillus. oryzae was carried out for the purpose ofproducing a fermentation medium that can be used to produce industrial chemicals..The experimentation was carried out in shake flasks as well as in a 10-litre fermenter andthe results obtained in all cases indicated that the two microorganisms could cooperatetogether to hydrolyse both the starch and the protein in wheat flour concurr...

Modeling Bioremediation Of A Petroleum Contaminated Soil Enhanced With Npk Fertilizer And Animal/Plant Derived Organic Manure

ABSTRACT In this study, the potential effects of animal derived organic manure (cow dung, poultry droppings), saw dust and NPK fertilizer on the bioremediation of petroleum hydrocarbon contaminated soil was investigated. The rate of biodegradation was studied for the period of 10 weeks under laboratory conditions. The biodegradation data were fitted to eight models, four of which are based on microbial growth rate and the other four based on order of reaction. Results obtained show that biore...

Kinetic Modelling Of Enhanced Bioremediation Of Hydrocarbon Polluted Soil

ABSTRACT Remediation of hydrocarbon polluted soil applying all existing techniques can be slow, expensive and requires close monitoring. Bioremediation and phytoremediation augmented bioremediation have been used to treat petroleum contaminated soil and even the difficult poly aromatic hydrocarbon polluted soil which takes longer time. What has not been studied was the effect of heavy metals present in petroleum which slows down the substrate degradation by microorganisms.  After th...

Characterisation Of Locally Produced Diaphragm Cells For The Production Of Caustic Soda

Abstract Detailed characterization of relevant cell components modelling and model validation of the electrical power utilization and productivity estimation of a locally fabricated 


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