Comparative analysis of coal, fuel oil and natural gas for cement production | Blazingprojects Postgraduate Thesis
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Comparative analysis of coal, fuel oil and natural gas for cement production

 

Table Of Contents


  • Title page Certification —————————————————————————- ii Approval ——————————————————————————- iii Dedication —————————————————————————– iv Acknowledgement ——————————————————————– v Abstract ——————————————————————————– vi Table of contents ———————————————————————- vii

Chapter ONE

INTRODUCTION

  • 1.1Background of study ———————————————————— 1
  • 1.2Statement of problem ———————————————————— 2
  • 1.3Aims and objectives ————————————————————- 2
  • 1.4Significance of study ———————————————————— 3
  • 1.5Scope of study ——————————————————————– 3

Chapter TWO

LITERATURE REVIEW

  • 2.1Energy source ——————————————————————— 5 2.
  • 1.0Coal —————————————————————————— 5 2.
  • 1.1Fuel oil ————————————————————————– 15 8 2.
  • 1.2Natural gas ——————————————————————— 15
  • 2.2Cement —————————————————————————- 17 2.
  • 2.0Cement manufacturing processes ——————————————– 18 2.
  • 2.1Major characteristics of cement industry ———————————- 22 2.
  • 2.2Energy challenge in the industry ——————————————– 23 2.
  • 2.3Demand for cement ———————————————————— 25 2.
  • 2.4Emission from cement industry ———————————————- 26
  • 2.3Conceptual framework ———————————————————– 30

Chapter THREE

SYSTEM DESIGN AND IMPLEMENTATION

  • 3.1Research methods —————————————————————– 31
  • 3.2Sample procedure/sample size determination ————————— —– 31
  • 3.3Data collection ————————————————————– —— 33
  • 3.4Operational measures of the variable ——————————————- 33
  • 3.5Research analysis —————————————————————– 34

Chapter FOUR

SYSTEM TESTING AND EVALUATION

  • PRESENTATION AND ANALYSIS OF DATA
  • 4.1Data presentation —————————————————————– 35

Chapter FIVE

SUMMARY, CONCLUSION AND RECOMMENDATIONS

  • CONCLUSION AND RECOMMENDATION 9
  • 5.1Summary —————————————————————— 50
  • 5.2Conclusion —————————————————————- 51
  • 5.3Recommendation ——————————————————– 51 REFERENCE ————————————————————— 53 APPENDIX —————————————————————— 56 10

Thesis Abstract

This study is a comparative analysis of the use of coal, fuel oil and natural gas for
cement production noting their physical and chemical properties, cost and
availability, impact on the environment and human health. Out of the seven cement
manufacturing industries in Nigeria, three industries use these fuels were selected
for the study. The industries are NigerCem –Ebonyi state, Dangote cement –Benue
state and UniCem -Cross river state. Questionnaires were used to gather information
on the three fuels. The likert 3- scale model was adopted, using 2.0 as the cut off
mark. Based on the analysis of the study, it was observed out that amongst these
three (3) fuels, fuel oil is presently expensive though available, while coal and
natural gas are cheap but coal is not available due to the closure of Nigeria‟s coal
mine. In terms of environment and health, coal and fuel oil emit much harmful
gases to the environment and cause more health problems to cement worker but
natural gas emits less of these harmful gases to the environment and cause less
health problems to workers. The study therefore shows that natural gas is the best
fuel because it is cheap, readily available and creates fewer problems to the
environment.

Thesis Overview

<p> </p><p>INTRODUCTION<br>1.1 BACKGROUND OF STUDY<br>Energy is commonly defined as the ability to do work or to produce heat.<br>Normally heat could be derived by burning a fuel (i.e. a substance that contains<br>internal energy which upon burning generates heat). (IEA, 2004).<br>The energy system today is highly dependent on fossil fuel with coal, fuel oil and<br>natural gas accounting for about 80% of world primary energy demand. (Kul,<br>2001).<br>Fuels are the major source of energy for industries and cement industry is not an<br>exception. However, the energy source to be adopted will have to meet the varying<br>needs of different countries and at the same time enhance the security of each<br>against the energy crisis that have taken place in the past. The selection/ choice of<br>fuel type depend on various factors such as environmental pollution, ease in<br>processing, storage and handling, availability and cost of the fuel.<br>Coal, fuel oil and natural gas are the most commonly used energy carrier in cement<br>industries. The energy use for cement production is distributed as follows:-<br>ï‚· 92.7% for pyro-processing<br>ï‚· 5.4% for finishing grinding and<br>ï‚· 1.9% for raw grinding (Choate, 2003).<br>11<br>The choice of fuel use entails the level at which green house gases (GHG) are<br>emitted, the cost of cement and the quality of the cement produced.<br>This research work will help in selecting the best fuel and techniques to be use in<br>order to attain a high quality product at a lower cost with lesser green house gas<br>emission to the environment.<br>1.2 STATEMENT OF PROBLEM<br>The choice of fuel is attained by comparative analysis of coal, fuel oil and natural<br>gas in cement production. In comparing these fuels, the following problem arises:-<br>ï‚· Knowledge of the physio- chemical properties of coal, fuel oil and natural<br>gas.<br>ï‚· Knowledge of the green houses gases (GHG) emitted by each of these fuel,<br>their level of emission and their effects on the environment and humans<br>health (esp. cement workers).<br>ï‚· Knowledge of the cost and availability of coal, fuel oil and natural gas.<br>1.3 AIMS AND OBJECTIVES OF STUDY<br>The aims of this research work is to;<br>ï‚· Study the physical and chemical properties of coal, fuel oil and natural gas.<br>ï‚· Gain knowledge on the green house gases (GHG) emitted, their effect on the<br>environment and humans health and the level of emission from each fuel.<br>ï‚· Study coal, fuel oil and natural gas in relation to cost and availability.<br>12<br>1.4 SIGNIFICANCE OF THE STUDY<br>With the growth in industrialization today, this study will offer numerous values both<br>to the cement industry and staff, the environment and society at large.<br>It will choose an economical and less hazardous fuel and techniques for cement<br>production.<br>Also, it will help in the selection of techniques /fuel that will reduce the emission of<br>green house gases (GHG) from cement industries to the environment. This gases<br>emitted causes acid rain, smog etc. which can cause cancer to human and destroys<br>plant lives.<br>In terms of infrastructural development, an economical fuel for production will lead<br>to a reduction in the cost of cement, thereby encouraging the development of<br>buildings and Government in development of roads, bridges, and other<br>construction- oriented projects.<br>This study will also give students of chemical engineering and other related courses<br>an insight of these fuels with their different environmental implications, properties<br>and choice of fuel when combustion of fuel is required.<br>1.5 SCOPE AND LIMITATION<br>This study would have covered all the Nigerian cement industries but due to time<br>and cost of analysis, it is limited to three(3) cement industries namely:- Dangote<br>Cement in Gboko -Benue State, United Cement Company in Calabar – Cross River<br>State(UniCem), and Nigerian Cement Company in Nkalagu -Ebonyi State<br>13<br>(NigerCem) of which each uses Fuel oil, natural gas and coal respectively as<br>energy source.<br>The intention of the study is to cover the effects of coal, fuel oil and natural gas in<br>the production of cement with reference to cost, storage and handling, availability,<br>product quality and environmental impact</p><div><div></div></div><br> <br><p></p>

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