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Unformatted text preview: Ethanol Distillation http://journeytoforever.org/biofuel_library/ethanol_motherearth/meToC.html Chapter 1 Introduction to a Farmer's Fuel ... Alcohol Introductory Overview of the Alcohol Production Flow Chart A Short But Complex Story About Enzymes and Their Functions Introduction to a Farmer's Fuel ... Alcohol Our definition of alcohol fuel is a nearly 100 percent alcohol with a tad of water in it -- not a blend of alcohol with gasoline. So ... why an alcohol fuel? And why not a blend of gasoline and alcohol.? There are several reasons why we chose an alcohol fuel. The first and probably most important one is that alcohol can be made by anyone, with a minimum of equipment. The knowledge necessary to make it can be obtained just by reading this book. As long as folks can grow certain plants, they can make alcohol fuel to run all or part of their power equipment. Dependence upon someone else to supply that fuel is no longer a problem or a threat. Second, alcohol is a good fuel, superior to gasoline in many ways: It can give extra power to certain engines, it is almost non-polluting compared to gasoline, it is safe and easy to handle. Third, the cost of conversion from gasoline to alcohol is inexpensive: For many engines it is merely an adjustment of the carburetor jets. Why not a gasohol fuel? The problem is water. Water and alcohol are totally miscible liquids. That is, they mix in all proportions. Pure alcohol and gasoline are also miscible liquids. But water and gasoline are not . This means that an alcohol-and-gasoline blend must be almost free of water. To make a 200-proof alcohol on the farm would require expensive equipment and additional production expenditures. At this time, that added expense would price a fuel blend beyond reason. But alcohol of 167 proof (16.5% water) is as good a fuel as 200-proof (100%) alcohol and better than gasohol. Really, it comes down to basic survival. Right now, the fuel shortage doesn't seem all that serious. It's something like having a leaking roof: When it isn't raining, the problem is not so bad ... but when it is raining? The bottom line to all this is that when the next fuel shortage comes -- and you can bet that one will-- the ones who have prepared best will survive with the least pain. Introductory Overview of the Alcohol Production Flow Chart The process of making alcohol fuel is not complicated. However, certain steps in the production line must be adhered to or else efficiency falls off drastically. The Ethyl Alcohol Production Flow Chart shows one system that works when using dry starch, such as that found in grain crops. The first step is to mill the grain. There is no one essential machine for doing this. However, the particles of the grain must be small enough so that all the starch granules can be gelatinized in the cooker. If particles are too large, the starch granules will be too deeply embedded in the matrix of the seed to be gelatinized and therefore will not be converted to sugar....
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This note was uploaded on 02/01/2012 for the course ECON AL101 taught by Professor Grubermcgee during the Spring '11 term at City University of Seattle.
- Spring '11