Question

Q. Match the following:

Type of Hydrogen	Production Method
1. Green Hydrogen	(a) Traditionally produced from methane (CH4), split with steam into CO2
2. Blue Hydrogen	(b) Additional technologies are necessary to capture the CO2
3. Grey Hydrogen	(c) Hydrogen produced by splitting water into hydrogen and oxygen using renewable electricity.

Select the correct answer using the code given below.

• A. 1-b, 2-c, 3-a
• B. 1-c, 2-b, 3-a
• C. 1-b, 2-a, 3-c
• D. 1-c, 2-a, 3-b

Answer 1

The correct option is B 1-c, 2-b, 3-a

Explanation:

• Green hydrogen is defined as hydrogen produced by splitting water into hydrogen and oxygen using renewable electricity. This is a very different pathway compared to both grey and blue.
• Grey hydrogen is traditionally produced from methane (CH4), split with steam into CO2 – the main culprit for climate change – and H2, hydrogen.
• Blue hydrogen follows the same process as grey, with the additional technologies necessary to capture the CO2 produced when hydrogen is split from methane (or from coal) and store it for the long term.