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Canola Methyl Ester Lab Report

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Chapter 3 PREPARATION OF BIODIESEL
3.1. Preparation of Canola Methyl Ester

Fig: 5 Preparation of Canola Oil Methyl Ester
3.2. Preparation of Aloevera Methyl Ester Fig: 6 Preparation of Aloevera Oil Methyl Ester
3.3. Pre-treatment
Filtered Canola and Aloevera oils are first taken to remove moisture. As water content of the feedstock is critical parameter and should be kept below 0.06% w/w for better conversion of oil to esters. Hence the raw oil is kept in an oven at 105 0C for 2-3hrs to remove the water content from the oil.
After de-moisture, detoxification with 1% hydrochloric acid (HCL) is carried out. The parameters present in trace quantity like carbon residue, unsaponificable material and fiber etc. are removed. The oil was processed …show more content…

The methyl ester is produced by chemically reacting canola and Aloevera oils with an alcohol (methanol), in the presence of catalyst. A two stage process is used for the trans-esterification of canola and Aloevera oils. The first stage (acid catalyzed) of the process is to reduce the free fatty acids (FFA) content in canola and Aloevera oils by esterification with methanol (99% pure) and acid catalyst sulfuric acid (98% pure) in one hour time at 57 0C in a closed reactor vessel. The canola and Aloevera oils are first heated to 50 oC then 0.7% w/w sulfuric acid is to be added to oil and methyl alcohol about 1:6 molar ratio is added. Methyl alcohol is added in excess amount to speed up the reaction. This reaction was proceeding with stirring at 650 rpm and temperature was controlled at 55-57 0C for 90 min with regular analysis of FFA every after 25-30 min. When the FFA is reduced upto 1%, the reaction is …show more content…

From the rise in temperature, the C.V is calculated.
Bomb Calorimeter consists of a strong cylindrical stainless steel bomb capable of withstanding high pressures and corrosion resistant. The bomb provided with a tight lid. The lid is provided with a stainless steel electrodes and an oxygen inlet valve. A ring is attached to one of the electrodes to support nickel crucible. The bomb is placed in a copper calorimeter. The copper calorimeter surrounded by a water jacket and air jacket to prevent the loss of heat by radiation. The copper calorimeter is provided with a stirrer and Beckman’s thermometer.
A definite amount of fuel is taken in a crucible and is supported over the ring. The electrodes are inserted into the crucible. The lid is tightened and is filled with oxygen at 30 kg/cm2. The bomb is placed in the copper calorimeter after taking known mass of water into it then the initial temperature of water is noted. The fuel is ignited by connecting the electrodes to a 6V battery. The fuel is burnt completely and the liberated heat is transferred to the water. Water is stirred with the help of stirrer and the maximum temperature attained is

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