Andrew Odorona Odeh

University of Benin · Department of Chemical Engineering

Oxy-fuel Combustion is a technology with the potential of drastically reducing the amount of CO2 emission, it relies on the use of oxygen and recycled CO2 instead of air as the oxidant. This helps to reduce the amount of the CO2 and NOx emissions. This study focuses on the components of flue gas produced and their amounts for oxy-fuel combustion in...

The rapid growth of the automobile industry has led to the abundance and indiscriminate disposal of waste tyres which causes environmental pollution and also lead to serious health problems. The absorption of crude oil using waste tyre powder (WTP) was investigated. A three variable Box-Behnken design was used to study the effect of particle size,...

Gasification provides an important route for the conversion of coal to synthesis gas for the production of fuels, chemicals or for use in thermal power generation. Among the coal gasification processes, the fluidized-bed process with inherent advantage of high heat transfer and easy handling of solids is a natural choice. This work presents the ste...

Differences in the physico-chemical properties of char can fundamentally affect the reactivity of the char during conversion processes and even the reaction pathway. Transformations from coal to char using a high heating rate have been thoroughly assessed; however, there is less information on the reactivity of this transition to chars. Two South A...

p class="zhengwen"> In this paper, we explore the use of high resolution transmission electron microscopy (HRTEM) in the degradation of the poly aromatic hydrocarbon (PAH) in coals of different ranks subjected to chemical plus heat treatment. The crystallite diameter on peak (10) approximations, La (10), of 37.6 Å for the high rank coal char at 700...

A good understanding of the chemical composition and structural characteristics of a carbonaceous material is essential in conversion processes. Understanding how the composition and structural changes influence the burning behaviour of coal is important when assessing a coal`s potential for utilization. To explore the potentials of a typical Niger...

In this investigation, SAXS and XRD were used to investigate both the physical and chemical changes in six coals of different ranks subjected to heat treatment. The specific surface area which gives an indication of the reactivity of the coal (measures surface area available for reaction) was determined to be in the range of 70.04 - 260.40 m2/cm3 p...

The effects of heating manner and charring temperature on both the physical and chemical properties of coal were investigated by petrographic techniques. Six coal samples of different rank were subjected to chemical treatment plus heat treatment. The pyrolysis experiments were carried out on acid washed coal in order to avoid ash formation. The cha...

Six coal samples of different rank: five Southern hemisphere and one Northern hemisphere were studied using both conventional and advanced analytical techniques; Scanning electron microscope (SEM), Fourier transform infrared (FTIR), Carbon nuclear magnetic resonance spectroscopy (C-NMR) and X-ray diffraction spectroscopy (XRD). Apart from the SEM t...

This paper analyzes the coal to char stages of char formation of six coals of different ranks by using Fourier transform infrared coupled with attenuated total reflectance (ATR-FTIR). The chars were obtained by coal pyrolysis carried out at temperature range of 450–700°C. The data obtained shows the pragmatic disappearance of the aliphatic hydrogen...

Development and characterization of polymer electrolyte membrane (PEM) using low cost chitosan were carried out by blending with sulphonated zirconium oxide, and assessed for its potential to serve as possible polymer electrolyte membrane fuel cell (PEMFC) application. Synthesized membranes were thus characterized by SEM, FT-IR, Water uptake, TGA a...

The authors considered two fabrication techniques in the fabrication of the membrane electrode assembly. It was observed that catalytic deposition through electro-spraying was not successful for chitosan and Nafion 117 membranes. Chitosan membranes are highly crystalline in their dry form and as a result the sprayed Pt/C and PtRu/C catalytic layers...

Fuel cells, especially proton exchange membrane fuel cells, are considered promising and an attractive replacement for existing sources of energy. Despite the high potential of proton exchange membrane fuel cells as an environmental friendly alternative energy source, high cost and limited durability hinder its production for commercial application...

The Tuns and Opuks shales are essentially kaolinitic with subordinate amounts of quartz, illite, and mixed layer clays. The total clay content of the shales varies from 55 to 92% with an average of 76%. The degree of reactivity in terms of their CEC is low and about 12 m.eq/100 mg on the average. The number of samples was, however, too small to be...

This is a report of a critical analyses of XP-07 Niger Delta shale interaction studies under both ambient and high-temperature/pressure conditions. The results affirm the following: 1. XP-07 is thermally very resistant and easily amendable to formulation adjustments to cope with even highly reactive shale problems.2. The viscosities and filtration...