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Chemistry: Ethanol Properties and Uses

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Questions and Answers

What is the first step in the production of biogas, syngas, pure hydrogen, and alkaline gases?

Conversion of coal or biomass in a gasifier (correct)

Synthesis of acetaldehyde and ethylene

Hydration of sulfuric acid ester

Fermentation of agricultural products

What is a disadvantage of the indirect hydration method of ethanol synthesis?

It is a slow process

It requires a high-temperature furnace

It uses a expensive catalyst

It produces SO2 as a side product (correct)

What is the current target of ethanol blending in India?

10% (correct)

20%

15%

What is the primary use of ethanol in the synthesis of esters?

As a reactant Signup and view all the answers

Which company first used the direct catalytic hydration method of ethanol synthesis in 1947?

Shell Signup and view all the answers

What is the primary purpose of using a submerged burner in the indirect hydration method of ethanol synthesis?

To evaporate water from dilute H2SO4 Signup and view all the answers

What percentage of propylene is used by the petroleum refining industry?

50-70% Signup and view all the answers

What is the primary use of propylene oxide?

Polyurethane plastic and foam Signup and view all the answers

What is the percentage of ethylene used for the production of ethylene oxide?

13% Signup and view all the answers

What is the percentage of propylene used for the production of polypropylene?

47% Signup and view all the answers

What is the percentage of ethylene used for the production of polyethylene (LD)?

27% Signup and view all the answers

What is the traditional method of producing ethylene?

Partial hydrogenation of acetylene Signup and view all the answers

What is the conversion percentage of C2H4?

4% Signup and view all the answers

What is the primary source material used in industrial ethanol production?

Molasses Signup and view all the answers

What is the purpose of adding sulphuric acid in the ethanol production process?

To favour yeast growth and inhibit bacterial growth Signup and view all the answers

Chemistry: Ethanol Properties and Uses

Choose a study mode

Podcast

Questions and Answers

What is the first step in the production of biogas, syngas, pure hydrogen, and alkaline gases?

What is a disadvantage of the indirect hydration method of ethanol synthesis?

What is the current target of ethanol blending in India?

What is the primary use of ethanol in the synthesis of esters?

Which company first used the direct catalytic hydration method of ethanol synthesis in 1947?

What is the primary purpose of using a submerged burner in the indirect hydration method of ethanol synthesis?

What percentage of propylene is used by the petroleum refining industry?

What is the primary use of propylene oxide?

What is the percentage of ethylene used for the production of ethylene oxide?

What is the percentage of propylene used for the production of polypropylene?

What is the percentage of ethylene used for the production of polyethylene (LD)?

What is the traditional method of producing ethylene?

What is the conversion percentage of C2H4?

What is the primary source material used in industrial ethanol production?

What is the purpose of adding sulphuric acid in the ethanol production process?

What is the percentage of fermentable sugar present in molasses?

What is the temperature at which yeast is added to the molasses solution?

What is the percentage of purity of ethanol obtained after fermentation?

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