F8 3rd Generation fuels

Question 1

What is first generation biofuels?

Answer 1

Question 2

What is second generation biofuels?

Answer 2

Question 3

What is third generation biofuels?

Answer 3

PtG = Power to Gas

Question 4

Schematic picture of pathways of H₂, CH₄ and electricity.

Answer 4

Question 5

What is the Sabatier reaction?

Answer 5

Question 6

The infrastructure for biogas and natural gas is available today → integrate renewable electricity. How does the process look like (schematic)?

Answer 6

Question 7

Methane is suitable to run at low temperatures and high pressure, and has a good equilibrium. What are some good aspects of using methane as fuel (summary)?

Answer 7

Question 8

Methanol CH₃OH is often used in the chemical industry and small amounts are used as fuel. Today it is produced from natural gas. What is the reaction of forming methanol?

Answer 8

Question 9

The schematic process of methanol production

Answer 9

Question 10

Prose and cons for methanol? (summary)

Answer 10

Question 11

What is Fischer-Tropsch fuel?

Answer 11

Question 12

Name two positive aspects with Fischer-Tropsch

Answer 12

Question 13

There is always a lack of H₂ when producing fuels from biomass. How can we add hydrogen (schematic for anaerobic digestion)?

Answer 13

Question 14

What are the pros of adding more H₂?

Answer 14

Question 15

Summary of adding hydrogen to biogas production

Answer 15

Question 16

Different CCS (carbon capture and storage) technologies

Answer 16

For ex, CO₂ + 4H₂ → CH₄ + 2H₂O