Introduction
These days chemical technologys have developed. The production of ethanol or ethyl alcohol from starch or sugar-based feedstocks is among man’s earliest ventures into value-added processing.
Henry Ford and Alexander Graham Bell were among the first to recognize that the plentiful sugars found in plants could be easily and inexpensively converted into clean-burning, renewable alcohol fuels.
While the concept is the same today as it was then, the ethanol industry has come a long way since those days.
Today, sophisticated biorefineries use state-of-the-art technologies to convert grains, beverage and food waste, cellulosic biomass and other feedstocks into high-octane ethanol.
In this lesson we will know much more about it and we will strengthen our knowledge! Are you ready?
https://www.youtube.com/watch?v=0KsDqsArMG0
Task
You need to answer these questions about ethonol production and hand them in the next lesson.
1. From what ethanol is made?
a.rice
b.corn
c.grass
2.What do you have to wear in lab?
a.safety glasses
b.gloves
c.helmet
3.What is the ethanol erfmentation process?
a.converting starch from corn to liquid energy
b.converting starch to liquid
c.heating corn in high temperature
4.What is added to the corn mesh to convert starch into comple sugars?
a.enzymes
b.bacteria
c.water
5.What is added to the corn mesh before fermentation process?
a.sulphur dioxide
b.yeast
c.sugar
6.How long is the fermentation process?
a.2-6h
b.48-60h
c.2days
7.How much, after destilation, alchocol does the mixture have?
a.50%
b.70%
c.95%
8.How much destiller grains are produced every year?
a.300 000t
b.1 000t
c.5 000 000t
9.In where is the corn mesh put in?
a.buckets
b.fermentation tanks
c.huge tubs
10.What color is ethanol?
a.yellow
b.orange
c.clear
Process
You will have to answer 10 questions . In order to answer them correctly whatch the youtube video about ethanol production. (whatch several times if needed)
Evaluation
| points | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| grade | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
For every right answer you get a point.
Correct answers:
1.B
2.A
3.A
4.A
5.B
6.B
7.C
8.A
9.B
10.C
Conclusion
You will gain and strengthen your knowlledge about ethanol production, learn how it is made and where it is used.
Thank you for your time and hopefully good marks!