Thesis Abstract

Abstract
Cellulose is the most abundant biopolymer on Earth, making it a key focus for biofuel production due to its potential as a renewable energy source. The hydrolysis of cellulose is a crucial step in the conversion of cellulose into biofuels. This study aims to investigate the effect of temperature on the hydrolysis of cellulose to better understand the kinetics and mechanisms involved in this process. Experimental results show that temperature plays a significant role in the hydrolysis of cellulose. Higher temperatures generally lead to increased reaction rates due to the greater thermal energy available to break the cellulose bonds. However, excessively high temperatures can also lead to thermal degradation of the cellulose, reducing the overall yield of hydrolysis products. The effect of temperature on cellulose hydrolysis is complex and can vary depending on the specific conditions and catalysts used. At lower temperatures, the hydrolysis reaction may proceed more slowly, requiring longer reaction times to achieve optimal conversion rates. On the other hand, higher temperatures can accelerate the reaction but may also result in the formation of byproducts that can hinder the efficiency of the process. Furthermore, temperature influences the selectivity of the hydrolysis process, affecting the distribution of products obtained from cellulose breakdown. By controlling the temperature, it is possible to optimize the production of desired hydrolysis products such as glucose, which can be further processed into biofuels. Overall, this study highlights the importance of temperature control in the hydrolysis of cellulose for biofuel production. Understanding the effect of temperature on cellulose hydrolysis is essential for designing efficient and sustainable processes to convert cellulose into valuable biofuels. By investigating the intricate relationship between temperature and cellulose hydrolysis, this research contributes to the development of strategies to maximize the yield and quality of biofuels derived from cellulose feedstocks.

Thesis Overview

1.1 Introduction

Cellulose is the name given to a long chain of atoms consisting of carbon, hydrogen and oxygen arranged in a particular manner it is a naturally occurring polymeric material containing thousands of glucose-like rings each of which contain three alcoholic OH groups. Its general each of which contain three alcoholic OH groups. Its general formula is represented as (C6H1005)n. the oh-groups present in cellulose can be esterifies or etherified, the most important cellulose derivatives are the esters.
Cellulose is found in nature in almost all forms of plant life’s, and especially in cotton and wood. A cellulose molecule is made up of large number of glucose units linked together by oxygen atom. Each glucose unit contains three(3) hydroxyl groups, the hydroxyl groups present at carbon-6 is primary, while two other hydroxyl are secondary. Cellulose is the most abundant organic chemical on earth more than 50% of the carbon is plants occurs in the cellulose of stems and leave wood is largely cellulose, and cotton is more than 90% cellulose. It is a major constituent of plant cell walls that
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provides strength and rigidity and presents the swelling of the cell and rupture of the palms membrane that might result when osmotic conditions favor water entry into the cell. Cellulose is a fibrous, ought, water-insoluble substances, it can be seen in cell walls of plants, particularly in stalks, stems, trunks and all woody portions of the plant.
Cellulose is polymorphic, i.e there are number of different crystalline forms that reflect the history of the molecule. It is almost impossible to describe cellulose chemistry and biochemistry without referring to those different forms. Cellulose are gotten from cellulose, cellulose is also found in protozoa in the gut of insects such as termites. Very strong acids can also degrade cellulose, the human digestive system has little effect on cellulose. The world cellulose means β-1, 4- D glucan, regardless of source because of the importance of cellulose and difficulty in unraveling its secrets regarding structure, biosynthesis, chemistry, and other aspects, several societies are dedicated to cellulose, lignin, and related molecues.
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1.2 Definition of Terms
Hydrolysis: means hydro (water) lysis (splitting) or breaking down of a chemical bond by the addition of water (H2O), it is by the introduction of the elements that make up water hydrogen and oxygen. The reactions are more complicated than just adding water to a compound, but by the end of a hydrolysis reaction, there will be two more hydrogen’s and one more oxygen shared between the products, than there were before the reaction occurred.
Hydrolysis of cellulose therefore is the process of breaking down the glucosidic bonds that holds the glucose basic units together to term a large cellulose molecule, it is a term used to describe the overall process where cellulsose is converted into various sweeteners.
Sugar: is the generalized name for a class of chemically related sweet – flavored substances, most of which are used as food. They are carbohydrates, composed of carbon, hydrogen and oxygen. There are various sugar derived from different sources. Simple sugars are called monosaccharide’s and include glucose cellos known as dextrose, fructose and galactose. The table or granulated
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sugar most customarily used as food is sucrose, a disaccharide other disacclarides include maltose and lacoose. Chemically-different substances may also have a sweet taste, but are not classified as sugar but as artificial sweeteners.