How to produce ethanol?

Question

how to use lignocelulosic materials to produce ethanol

Answer 1

From chemical methods:
HCHO(formaldehyde) + CH3MgBr(methyl magnesium bromide or grignard reagent) --H2O/H+-------> CH3CH2OH
Acetaldehyde on reduction with LiAlH4/NaBH4 gives ethanol
From lignocellulosic materials: By fermentation technique
Molasses contain 50%sugar.It is diluted wit water untik the sugar content becomes 10%
Then it is taken to fermentation tank
Add microorganisms(yeast) ,Sacchromiseum cervesae,.
For yeast to grow we add ammonium sulphate and ammonium phosphate.
the yeast is used to produce enzymes they are grown at optimum temperatures and optimum pH
The yeast releases zymase and invertase
The sucrose is converted to glucose and fructose by action of invertase
the glucose and fructose converts to ethyl alcohol by action of zymase
a 5-10% ethyl alcohol called wash is obtained this on fractional distillation yield 96%rectified spirit which we use generally
if we add quick lime a 99% alcohol is obtained

Answer 2

Right now ethanol is not very economical or green. It takes diesel powered engines to tend to the crops of corn that produce ethanol. The corn does not have any other purpose but to be fermented into ethanol, and there is more CO2 produced by the engines than what is taken out of the air by the plants. In addition, your'e absolutely right. Ethanol "enhanced" gasoline does not burn very well. Engines don't like it. Nor do they like the oxygenated crap. Supposedly, both will reduce emissions, but my engine gets 25 miles to the gallon on regular unleaded and 18 miles on the treated junk. Not very smart in my book. I spend more on the less efficent stuff and go fewer miles between fill-ups. In the long run, I am better off without it. I'm all for alternative fuel sources. I think we need them. Both for the environment and the economy. But until they come up with a solution that is practical and runs in my car without any modifications, I will simply stick to what is available to me.

Answer 3

Ethanol is a 2 carbon alcohol. Lignocelulosic materials refers to woody cellulose plant materials,which are long carbon chains.. You need bacteria that can digest woody material to start the process, then yeast to change the starch and sugar to alcohol, fermentation.

Answer 4

Enzymatic hydrolysis of the lignocellulose to simple sugars using a mixture of cellulase, lignase and amylase.

Fermentation of the resulting sugars with either yeast (poor) or GMO bacteria (better) to yield ethanol.

Vacuum distillation to recover ethanol.

Answer 5

I was trying to design a pure 100% Etanol fusealage for a propane tank as a suppliment Truck gas and when I added the corn syrup My garage blew up and half my house . I was tossed up the tree from the blast and onl;y suffered minot cuts and bruises.

Answer 6

When you make alcohol out of wood, you will probably get methanol instead of ethanol. Don't drink it if you want to live.

Answer 7

they first harvest corn
they grind it up
they use a bacteria to convert the startch into sugar
they use yeast to convert it into alcohol
they purify it to like a hundred percent
then they sell it/ mix it with gas

Answer 8

fermentation of sugar at controlled conditions

Answer 9

I'll ask my relatives in West Virginia and get back to you.

Answer 10

fermentation is the estabolished method