The Impact of Hydrogen-Based Steel Production on Carbon Emissions

Introduction:

Steel is used in almost every aspect of life from construction and automobiles to home appliances. However, making of steel has a cost on the environment especially in the aspect of carbon emission which stands as 30%. Conventionally coking coal is used in steel making process however the burning of coke releases a huge amount of CO2 into the atmosphere. While energy consumers strive to lower their CO2 emissions, the use of hydrogen in steel production seems to be one of the promising trends. Hoping that this new method will reduce carbon emissions and take industries a step closer toward achieving its sustainability goals.

How Traditional Steel Production Works

In traditional refining steel, material, iron ore is reduced by heat applied through coke in a structure referred in as a blast furnace. This process results to molten iron and gets to convert the molten iron to steel. But it is a problem because a great amount of CO2 is produced in the reaction between iron ore and coke which is one of the culprits of global warming. Today, information indicates that steel industries alone account for about 7-9% of emissions of carbon dioxide into the atmosphere. Since there is awareness on the effect of environmental rendering industries have been challenged to come up with better methods of production.

The Role of Hydrogen in Steelmaking

In the context of this article, Hydrogen based Steel making will be also understood as the process where instead of coke as the agent that is used to convert the Iron ores to Steel; the use of hydrogen gas is made. The single main benefit of this process is that water (H2O) is the co-product rather than CO2. If successful it could significantly cut the CO2 emissions in steel making from the current average of 1.85 tonnes per tonne of steel to below 1.3 tonnes. Hydrogen can be created with diverse processes but the method which produce the clearest result is via green hydrogen which is acquired from renewable sources like wind or solar power. Coated in this manner it capable of reducing the carbon part in steel production to insignificant figures.

Environmental Benefits of Hydrogen-Based Steel

The use of hydrogen to produce steel would eliminate CO2 emissions and drastically cut the industry’s carbon intensity. This would reduce the emission of the hazardous dioxins such as CO2 hence reducing global climate change an improving air quality.
An analysis done by some other scholars estimate that a similar technology could reduce the CO2 emissions by a forth by about 90% compared to conventional techniques. Furthermore, independent on oil and gas, the use of hydrogen in the steelmaking process contributes to the development of global objectives of greener energy sources and climate change mitigation.

Challenges in Adopting Hydrogen-Based Steel Production

However, there is one critical issue with hydrogen-based steelmaking, which is listed below. First, scaling up green hydrogen production creates a need for large amounts of renewable energy which is costly and scarce. Another challenge is in the creation of the structural framework for generation of hydrogen and its distribution. Moreover, transitioning from coal to hydrogen for integrated steel plants, presumably through pipeline transportation, would entail capital costs into a range. As for the hydrogen-based steel production some companies are testing this solution, however, massive implementation may take years or even decades.

The Future of Steel Production

When companies and administrative bodies around the world aim for cleaner production methods, hydrogen-based steel production appears to be the most effective solution in terms of lowering carbon footprint. Some European countries and steel companies have already started using this method. Eventually, renewable energy would be cheaper and made readily available and in such a state, hydrogen based steel production is likely to be the key enabler of the low carbon economy.

Conclusion

The potential for hydrogen-based steel production to drastically change the carbon footprint that is associated with the production of steel is exceptional. The above new method could effectively solve the emissions problem produced by the steel industry and the issue of climate change. But issues of cost, infrastructure, and scalability are still seen when it comes to giving life to such designs. With more effort on research and development and capital investment in hydrogen and hydrogen based technologies, hydrogen based steel making could be part of the solution to curb the use of carbon in the country and the world at large.