Ethanol 0.0 / 5 ? ChemistryFunctional groups: Alcohols, carboxylic acids and estersGCSEAQA Created by: miajessica2810Created on: 18-01-15 14:03 What are the 2 ways that ethanol can be produced? Fermentation and Hydration. 1 of 8 Describe and explain how ethanol is made by fermentation Glucose (sugar) from plants is fermented. Enzymes in yeast break down the sugar into ethanol and carbon dioxide. 2 of 8 Describe and explain how ethanol is made by hydration Ethene is made when crude oil is cracked. Ethene reacts with steam in the presence of a catalyst to create ethanol. 3 of 8 What is a catalyst? A catalyst is a substance that increases the rate of a reaction without being used up in the reaction. 4 of 8 Advantages of making ethanol by fermentation Sugar plants are renewable. 5 of 8 Disadvantages of making ethanol by fermentation Fermentation is a batch process which takes a lot longer, carbon dioxide is released. 6 of 8 Advantages of making ethanol by hydration Hydration is a continuous process therefore much faster, no carbon dioxide released. 7 of 8 Disadvantages of making ethanol by hydration Ethene is made from crude oil which is non-renewable. 8 of 8
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