This work covers the process of making Ethanol from wood dust instead of starchy biomass which could be meant for food or instead of overdependence on hydrocarbon source. The saw dust of Gmelina arborea was collected in a saw mill in Ore, Ondo State, Nigeria and it was used to produce ethanol by hydrolysis and fermentation processes. The density of the wood species was 570 kg/m 3 . The ionic constituents of the ethanol from the wood biomass were analyzed using Fourier Transform Infrared Spectrometric Analyzer (FTIR) and Atomic Absorption Spectrometric Analyzer (AAS). The AAS result shows that the ethanol obtained from the wood species contains transition metals like Copper (Cu), Zinc (Zn), Cadmium (Cd) and Chromium (Cr) while the FTIR results show the presence of ethanol functional groups such as OH, Carbon to carbon single covalent bond which and these are normal components of ethanol in the conventional ethanol.

Filtration of hydrolized solutionThe neutralized solution was poured on the open flat surface of Buchner funnel whose protruding end was placed in a conical flask AbstractThis work covers the process of making Ethanol from wood biomass instead of starchy biomass. The saw dust of Brachystegia eurichoma was collected in a saw mill in Ore, Ondo State, Nigeria and it was used to produce ethanol by hydrolysis and fermentation processes. The density of the wood species was 750 kg/cm 3 . The density of the ethanol produced was gotten to be 0.8033 g/cm 3 . The ionic constituents of the ethanol from the wood biomass was analyzed using Fourier Transform Infrared Spectrometric Analyzer (FTIR) and Atomic Absorption Spectrometric Analyzer (AAS). The AAS result shows that the ethanol obtained from the three wood species contains transition metals like Copper (Cu), Zinc (Zn), Cadmium (Cd) and Chromium (Cr) while the FTIR results show the presence of ethanol functional groups such as OH, Carbon to carbon single bond which are normal components of ethanol in the conventional ethanol.

This thesis covers the process of making Ethanol from wood biomass instead of starchy biomass. The saw dust of Gmelina (Gmelina arborea), Eku (Brachystegia euricoma) and Mahogany (Entandrophragma cylindricum) was collected in a saw mill in Ore and used to produce ethanol by hydrolysis and fermentation processes. The density of each of the wood species was thereafter determined as 570 kg/m 3 , 750 kg/cm 3 and 600 kg/cm 3 respectively. The yield of ethanol from Eku, Mahogany and Gmelina wood was determined as 50.61 g/l per 100 g of dry sawdust, 55.43 g/l per 100 g of dry sawdust and 53.01 g/l per 100 g of dry sawdust respectively. The density of the ethanol produced from the wood of Eku, Mahogany and Gmelina was 0.8033 g/cm 3 , 0.7088 g/cm 3 , and 0.8033 g/cm 3 respectively. These results were subjected to Analysis of Variance (ANOVA) and compared with conventional ethanol. The ANOVA result shows no significant difference among the ethanol yield and ethanol density obtained from the three wood species and that of the conventional ethanol. The ionic constituents of the ethanol of the three wood biomass was analyzed using Furrier Transform Infrared Spectrometric Analyzer (FTIR) and Atomic Absorption Spectrometric Analyzer (AAS). The AAS result shows that the ethanol obtained from the three wood species contains transition metals like Copper (Cu), Zinc (Zn), Cadmium (Cd) and Chromium (Cr) while the FTIR results show the presence of ethanol functional groups such as OH, Carbon to carbon single bond which are normal components of ethanol in the conventional ethanol as well as in the ethanol produced from each of the three wood species. moisture content, vessels and fibres properties [4]. Due to this diversity in characteristics, exploitation was selective and was limited to very strong and durable species like Melicia exelsa, Khaya ivorensis, Afzelia africana, Nauclea diderrichii [5,6] pointed out the need for more thorough investigation of the basic structure of woody elements from the tropics in a bit to get rid of diminishing traditional wood raw material resources. Physical properties of woodGenerally, the behaviour of wood is influenced by its physical properties. According to Panshin and Dezeeuw [7], the physical properties of wood are expressed in terms of cell wall substances that are present in given volume of wood, the amount of water present in the cell wall. It also includes the quantity of extraneous substances present, the arrangement and orientation of wall materials in the cell wall and the kind, size proportion and arrangement of the cell making up the wood (Xylem) tissue. Wood densityDensity is defined as the amount of wood substance per unit volume [7,8]. Dinwoodie [9] reported that the density of wood is a function of the cell wall thickness and also depends on the level of cell wall development. Chafe [10] reported that high cellulose content in wood is an indication of high density. Density varies greatly depending on the anatomical structure of wood.Variation in density occurs within as w...