How Does the CO2 to CO Conversion Technology Work?
The CO2 to CO conversion technology operates through an electrocatalytic process.
Unlike traditional methods that require high temperatures (400-750 °C), and the presence of the equivalent amount of hydrogen, this process can operate at ambient temperatures (25-40 °C) in the presence of water, eliminating the need for high-temperature conditions.
The energy for this electrocatalysis reaction can be sourced directly from renewable energy, such as solar panels or windmills, ensuring a carbon-neutral operation. Making it highly energy-efficient process and environmentally friendly and sustainable.
Significance for the Steel Industry:
CO is a crucial chemical in the steel industry, used in the conversion of iron ores to metallic iron in blast furnaces.
CO is a widely used chemical in the industry especially in the form of syn gas.
Traditionally, CO is produced through the partial oxidation of coke/coal, resulting in significant CO2 emissions.
The new CO2 to CO conversion technology presents an opportunity to establish a circular economy, reducing carbon footprint and associated costs in steel production.
It is a catalytic process that involves the direct transfer of electrons between an electrode and reactants.
This process is environmentally friendly, efficient, and inexpensive. It can be used in many sustainable energy technologies.
Carbon monoxide (CO)
It is a colorless, odorless, and tasteless gas that is slightly less dense than air.
Sources of CO: CO is a byproduct of the incomplete combustion of hydrocarbons. Common sources include burning fossil fuels like natural gas, petrol, coal and oil, wood smoke, car and truck exhausts etc.
It is toxic to humans insofar as it forms a complex thereby displacing oxygen from the hemoglobin of the blood.
In the atmosphere CO is short lived because of the role it plays in the formation of ground-level ozone.
UPSC Civil Services Examination Previous Year Question (PYQ)
Q. Consider the following: (2019)
Which of the above are released into atmosphere due to the burning of crop/biomass residue?
(a) 1 and 2 only (b) 2, 3 and 4 only (c) 1 and 4 only (d) 1, 2, 3 and 4