Bio-diesel Present Situation and Development Prospect Tao Ding

What is biodiesel Alternative Fuel derived from plant oil Alternative Fuel derived from plant oil Contains no petroleum but be blended with petroleum diesel Contains no petroleum but be blended with petroleum diesel Produced domestically from renewable resources Produced domestically from renewable resources No engine modification are necessary No engine modification are necessary Biodegradable, Nontoxic Fuel Biodegradable, Nontoxic Fuel

Biodeisel Emissions Compared to petroleum diesel, reduced emission of: Compared to petroleum diesel, reduced emission of: --Unburned hydrocarbons --Unburned hydrocarbons --Carbon monoxide --Carbon monoxide --Particulate matter --Particulate matter --Sulfur oxides --Sulfur oxides Overall ~50% less than that for diesel fuel Overall ~50% less than that for diesel fuel

Biodiesel Production Transesterification Transesterification --Chemical process which converts vegetable oil into biodiesel and glycerol --Chemical process which converts vegetable oil into biodiesel and glycerol

Process Step 1. Clean and heat biolipid (WVO ) 2. Titration the WVO sample. (Optimal PH7) 3. Mix the bioalcohol and catalyst in exact amount 4. Combine methanol/caustic with biolipid at 50 C, mix and heat for several hours 5. Separate biodiesel and glycerol and remove alcohol 6. Purification

100 lbs. of Soybean oil +10 lbs Methanol = 100 lbs. Soy biodiesel +10 lbs of Glycerol

Efficiency and Economic Arguments According study of U.S Department of Energy, the biodiesel yields 3.2 units of fuel product energy for every unit fossil fuel energy consumed. According study of U.S Department of Energy, the biodiesel yields 3.2 units of fuel product energy for every unit fossil fuel energy consumed. --Petroleum Diesel Petroleum Diesel Petroleum Gasoline Petroleum Gasoline 0.805

Some Research for Biodiesel Source Traditional plants can not satisfy the energy requirement of the world Traditional plants can not satisfy the energy requirement of the world A species of algae with oil content of 50% A species of algae with oil content of 50% Utilize 0.3% land = All transportation Energy Utilize 0.3% land = All transportation Energy Desert is the best place because the high Desert is the best place because the high solar radiation solar radiation

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