دانلود پاورپوینت اتانول

فرمت پاورپوینت : pptx

قابل ویرایش

تعداد اسلاید : 101

روشهاي توليد:


اتانول از زمانهاي قديم توسط تخميرشکر تهيه مي شده است . در حال حاضر حدود 91 درصد توليد اتانول از طريق تخمير منابع کربني (فرمانتاسيون) و 9 درصد به روشهاي سنتزي توليد مي شود. از جمله منابع کربني متعددي که در کشورهاي مختلف يافت مي شود مي توان به نيشکر ، چغندرقند،ملاس، ذرت ، گندم و ديگر ترکيبات نشاسته دار و کليه ترکيبات ليگنوسلولزي مانند ضايعات چوب ، ضايعات کشاورزي ، کاغذ زباله و حتي خود زباله اشاره نمود.



Fermentation has always been an important part of our lives: foods can be spoiled by microbial fermentations, foods can be made by microbial fermentations, and muscle cells use fermentation to provide us with quick responses. Fermentation could be called the staff of life because it gives us the basic food, bread. But how fermentation actually works was not understood until the work of Louis Pasteur in the latter part of the nineteenth century and the research which followed.
Fermentation is the process that produces alcoholic beverages or acidic dairy products.
For a cell, fermentation is a way of getting energy without using oxygen.



Can be derived from soybean oil, canola oil, sunflower oil, tallow, waste grease from restaurants, etc.
Requires no engine modification;
Cuts exhaust emissions; minimizes black smoke, odor, greenhouses gases, air toxics and particulates. No sulfur dioxide (acid rain)
Excellent lubricant.