Common ingredients used in the teachings on how to make ethanol
are corn and grain sorghum, wheat, barley and potatoes and in Brazil, the world’s largest producer of ethanol, sugarcane is used when learning how to make ethanol. There are also two processes by which one can learn how to make ethanol and these are dry mill process and wet mill process and in the US, dry mill process is most often used when teaching others how to make ethanol with the starch content of the corn being fermented into sugar to be further distilled into alcohol.
Dry Mill and Wet Mill Processes
When wanting to know more about how to make ethanol one would obviously need to learn the steps involved in both dry and wet mill processes and for the dry mill process, one needs to do the milling, followed by liquefaction, fermentation, distillation and finally dehydration and denaturing. The wet mill process requires steeping the corn, screening, separation, starch conversion, germ separation, fiber, wet gluten, drying, fermentation, syrup refining and oil refining of the germ.
In the dry mill process, milling involves passing the feedstock through a hammer mill that grinds it into a powder called meal which is mixed with water as well as alpha-amylase and passed through cookers to liquefy the starch. This mash that comes out of the cookers is cooled and glucoamylase is added so that the liquefied starch can be transformed into sugar that in turn will be fermented.
Yeast Must Be Added For Fermentation to Occur
For the fermentation process to take effect yeast must be added to the mash and this will allow the sugar to be fermented into ethanol as well as carbon dioxide. The next step is the distillation process which is necessary to remove the alcohol from the solids and the water and usually the alcohol is at 96% strength at this stage. This alcohol is passed through a dehydration system and all the water is removed and for this one may use a molecular sieve to capture every last drop of water remaining and once performed leaves the alcohol at 200 proof.
Finally, ethanol which will be used for fuel has to be denatured which means it should be rendered unfit for human consumption and so a small quantity of two to five percent of gasoline is added to it and this may have to be done at an ethanol plant. These are the steps one needs to know about when concerned with how to make ethanol using the dry mill process.
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The burning of transportation fuel accounts for the greatest source of air pollution in our nation. These pollutants range from allergy irritants to carcinogens. Because of the nature of gasoline and the emissions it produces, researchers are trying to find cleaner sources of energy. On source of energy that is readily available and considered renewable is ethanol, which comes from corn, sugar and other bio-wastes. From this has stemmed a grate relationship between Honda and ethanol. Read below for the plans for Honda and ethanol as well as the vehicles Honda already has that will operate on a 10% ethanol and gasoline mixture.
Honda and its Ethanol Plans
Many people are familiar both with cars produced by Honda and with ethanol options available to consumers. Honda, however, has new plans for ethanol that are very promising for the future of ethanol fuel. These plans include using bio-wastes or discarded plant wastes to produce ethanol. Not only has Honda worked hard to find places other than corn to derive ethanol, but it has also developed a microorganism that allows for more efficient production of ethanol. In addition, Honda and ethanol are planning to tie the knot in 2008 with Honda’s first bio-refinery.
Ethanol Available Vehicles
Even though Honda is working diligently toward better ethanol options, several of their vehicles are already able to handle a 10% ethanol mix, known as E10. Honda and ethanol work together in several of its vehicles. These include the Honda Accord and Honda Accord Euro from 2003 onwards, the Civic from 2004 onwards, and the CR-V 2003 onwards. In addition, the Honda Integra 2002 on, Honda Jazz 2004 on, the Honda Legend 2007 on and the MDX 2003 on are also able to handle this mixture. Finally, the Odyssey and S2000 2004 onwards also can use E10. These vehicles range from compact cars to mini-vans and are appropriate for many different families.
Conclusion
There is no doubt that there is a push among automakers to develop more fuel efficient and cleaner vehicles. Honda and ethanol appear to be moving in the same direction toward technologies that will make our environment cleaner and our dependence on foreign oil lessened. With Honda’s creation of an ethanol refinery and current vehicles that handle E10, it seems that Honda is a leader in the movement from gasoline to ethanol. Watch for more from Honda and the future of fuel.
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