Introduction
This Webquest is about the manufacture of ethanol using cellulosic materials. It looks at how ethanol is made from collecting raw materials to the distribution of the end product.
This is the source that is needed to complete the task VIDEO .
Task
1. Can ethanol be made out of plants?
2. What is the point of enzyme?
3. Is water used in the production of ethanol at all?
4. What is added during the fermentation to transform sugar crystal into ethanol?
5. What chemical compound is separated from the mash during the fermentation process?
6. How much ethanol is left after fermentation?
7.What chemical substance must be added, so that the ethanol is potable?
8.What happens to the the mass that is left over?
Process
Go through the Internet resource provided HERE . Feel free to write down the information that you find important or that you might not remember.
Then go to Task and answer the given questions. After that go to Evaluation where there are the correct answers to these questions. For each right answer you get one point, calculate your score; then check your score with the score scale, read the comments which is located below the answers. :)
Evaluation
Answers to the Task questions:
1. Yes. Switchgrass and wood pulp are some of the used cellulosic materials.
2. Enzyme is used to break down the starch into sugar.
3. Yes. Water is used to make mash.
4. Yeast is added to transform sugar crystal into ethanol.
5. Carbon dioxide gets separated.
6. 10% of ethanol is left after fermentation.
7. Gas is added to make ethanol potable.
8. The leftovers are used to produce livestock feed, dry iceand carbonated drinks.
For each right answer you get one point. Check your score with the score scale and read the comments.
| Score | Comment |
| 8 - 7 | Very good. You have successfully acquired the material. |
| 6 - 5 | Ok. You could watch the video one more time to know the right answer. |
| 4 - 0 | Meh. You should rewatch the video and find the correct answer to the incorrect answers |
Conclusion
Congratulations! You have completed the Ethanol Production Webquest! Now you are familiar with how ethanol is manufactured and used afterwards. Ethanol is also used in medicine, alcohol manufacture, rubber manufacture and cosmetics. Mostly ethanol is used to produce biofuel which reduces pollution.
Credits
Anotācija latviski:
Etanola ražošanas tehnoloģijas
Šājā Webquestā aplūkosim etanola ražošanu, izmantojot celulozi, cieti un saharozi. Kā no izejvielām var iegūt etanolu, kādi procesi notiek starpā.
Šis ir video, kas tiks apskatīts.
Etanols tiek arī izmantots medicīnā, alkohola ražošanā, kaučuka ražošanā un kosmētikā, bet visbiežāk tiek izmantots biodegvielas ražošanā, kas ir mazāk kaitīga par parasto degvielu.