ABSTRACT The utilization of lignocellulosic biomass as feedstock for the production of fuel ethanol has attracted considerable interests in the last few decades. The emergence of new technologies has provided hope for fuel ethanol potential uses. Lignocellulose is a valuable alternative energy source. The enzymatic hydrolysis of lignocellulosic biomass is constrained due to its complex structural features, so pretreatment is important to enhance its enzymatic digestibility. In this study, the...
ABSTRACT The utilization of lignocellulosic biomass as feedstock for the production of fuel ethanol has attracted considerable interests in the last few decades. The emergence of new technologies has provided hope for fuel ethanol potential uses. Lignocellulose is a valuable alternative energy source. The enzymatic hydrolysis of lignocellulosic biomass is constrained due to its complex structural features, so pretreatment is important to enhance its enzymatic digestibility. In this study, th...
ABSTRACT Converting the huge amount of waste cooking oils presently generated globally to biodiesel as complementary energy source to fossil fuel is one of the major routes to sustainable energy management. However, producing quality biodiesel at established optimum conditions, through a clean technology with favourable environmental implications is of greater importance. This research focused on achieving the latter through alkali catalysed trans-esterification process of biodiesel producti...
ABSTRACT With the fast depletion of fossil fuel sources for energy production and coupled with their negative impacts on the environment, the continued search for alternative sources that are renewable, sustainable and environmentally friendly has become imperative. This research examined the performance of sodium borohydride for the production of hydrogen gas using 5 ml each of organic acid (acetic acid) and extracts of spoilt citrus fruits (lime, lemon and orange) without the use of neithe...
INTRODUCTION. In its ordinary sense, the term destruction usually has the under current of sadness. Why then would destruction in this context be beneficial to the socio-economic well being of the human race? The reasons will crystallize out. I hope, as I discuss this topic. The black gold simply refers to crude oil or petroleum, its offspring are the products resulting from its destructive physical separation. One may then ask why the name “black gold”? Gold as we know is a very expensi...
REACTIONS AND TYPES Reaction in chemistry has to do with a chemical transformation taking place with atoms or molecules (compounds) or their combinations. Since there is usually a change in energy level, reaction is usually accompanied by heat absorption (Endothermic Reactions) or heat evolution (Exothermic Reactions). On a daily basis, apart from reactions that are initiated by man, there are scores of natural reactions taking place on routine basis. The existence of man and other living th...
TABLE OF CONTENTS Introduction......................................................................................4 Previous works on Catalyst Deactivation........................................7 Experimental Work..........................................................................13 Existence of Stability States.............................................................21 Cause of Deactivation and Mortality...............................................21 Some Significant Observati...
ABSTRACT Zeolites are important chemical materials used in chemical processes. The manufacture of the materials usually involves the use of expensive chemicals. This study involves the use of Elefun Nigerian Kaolin (ENK) as precursor material for the development of zeolite Y. The synthesis of zeolite Y was successful following a sequence: collection of raw kaolin clay from Elefun area of Ogun state, Nigeria; subjecting it to, calcination, partial dealumination and final hydrothermal syn...
ABSTRACT In its ordinary sense, the term destruction usually has the under current of sadness. Why then would destruction in this context be beneficial to the socio-economic well being of the human race? The reasons will crystallize out. I hope, as I discuss this topic. The black gold simply refers to crude oil or petroleum, its offspring are the products resulting from its destructive physical separation. One may then ask why the name “black gold”? Gold as we know is a very expensive me...
Abstract This research study process of combined process of injection of preform and immediately then blowing of these preform on the same machine. Such a process has its advantages compared with the traditional sequence of preform injection in one machine and later the blowing of the preform to produce the bottle. Process combined products like pharmaceutical bottles made in a small size are not susceptible to pollution and more economical, in the case of the separate process becomes more ...
ABSTRACT A sample of high density polyethylene and graphite powder was made to study the effect of graphite power content on the electrical properties of high density polyethylene, graphite offers the benefit of low density and cost when compared to metallic substances used for the same function , the sample was tested with different concentrations of graphite powder (30,40,50)% and in different temperatures, the study reached to the following results: The conductivity of the HDPE was increa...
ABSTRACT This world in which we are in is characterized by a multitude of natural phenomena. It is a world of change, of movement and energy; of storms, earthquakes, cosmic rays and solar flares. The range and complexity of these changes is so great, that it would seem the height of foolishness to attempt to find a common trend, or a theme that runs through them all. Never the less, men have come to the understanding of the factors involved. At the heart of such a science is the concept of en...
ABSTRACT. Cost effective steel utilization as distinct from steel utilization is an engineering challenge of our time, especially in this austere period. Steel scrap recovery is defmitely one of the areas to be seriously looked into by Nigerian engineers. After estimating the recoverable steel scrap to the year 200AD, this paper aims at fmding an appropriate technology and size for steel scrap recovery bearing in mind the need for self reliance and the level of our technological advancement....
TABLE OF CONTENTS Introduction......................................................................................4 Previous works on Catalyst Deactivation........................................7 Experimental Work..........................................................................13 Existence of Stability States.............................................................21 Cause of Deactivation and Mortality...............................................21 Some Significant Observati...
ABSTRACT Tuberculous pericarditis is an extra pulmonary form of tuberculosis (TB) which leads to a lifethreatening form of pericardial fibrosis in up to 25% of patients despite anti tuberculous therapy. The mechanisms leading to the fibrotic phenotype following infection are poorly understood. A proof of concept study revealed decreased levels of the antifibrotic N-acetylseryl- aspartyl-lysyl-proline or Ac-SDKP in tuberculous pericardial fluid as compared to control (non infectious) peric...