Green steel making is in vogue now more than ever. While governmental support and more renewable energy supplies are required to speed up the transition to carbon-neutral steel manufacturing, improvements can now be made to lessen climate effects in the near term.

Green Steel Making - All You Need To Know

What is Green Steel?

Green steel is simply steel with the lowest carbon footprint currently achievable, which will vary by product and evolve over time.

Read- Direct Capture and Everything you need to know.

What is green steel making?

Green steel making means transforming used tires and plastics into high-quality steel, a method called electric arc furnace (EAF) steelmaking uses high-temperature reactions.

Read- Point source carbon capture

What is the process of making steel?

Steel is made from iron ore, a naturally occurring mixture of iron, oxygen, and other minerals. The blast furnace/basic oxygen furnace route and the electric arc furnace route are the two methods used to mine the raw materials for steelmaking and then turn them into steel. 

Both processes are continuously enhancing to meet the challenge of producing steel with minimal emissions.

Read- 25 Solar power dealers companies in Lagos.

Why is it important to produce green steel?

Green steel is a significant issue. A significant challenge in combating climate change is decarbonizing the steel sector. 

Close to 7% of the world’s greenhouse gas emissions are attributable to the manufacture of steel, which is almost equal to the annual emissions of all the vehicles on the road.

What is the environmental impact of steel production?

In addition to air emissions (CO, SOx, NOx, and PM2), wastewater contaminants, hazardous wastes, and solid wastes, steel production also has several other environmental effects. 

The production of coke and iron has the biggest negative effects on the environment in integrated steel mills.

  1. Emissions to air

One of the main causes of pollution from the steel industry is the manufacture of coke. Coke ovens produce various air emissions, including coke oven gas, naphthalene, ammonium compounds, crude light oil, sulfur, and coke dust.

  1. Emissions to water

The water emissions come from the water needed to freeze coke after it has finished baking. Water that is used for irrigation becomes contaminated with coke fumes and other substances. Although there can be a lot of contaminated water, quenching water can usually be recycled. Filtration can eliminate the majority of contaminants.

  1. Climate change

Carbon dioxide emissions from energy consumption account for most greenhouse gas emissions connected to the steel production process.

  1. Waste

The majority of iron-making byproducts are composed of slag, which is composed of the iron ore and limestone impurities gathered at the top of the molten iron. In air emissions control devices, sulfur dioxide and hydrogen sulfide are volatized, caught, and the leftover slag is sold to the construction industry. Solid trash does not end up in landfills, even though this is not a pollution protection method.

The two main types of waste produced by electric arc furnaces are gaseous emissions and metal dust.

Can you make steel with renewable energy?

HYBRIT (Hydrogen Breakthrough Iron making Technology), which uses renewable energy to make the clean-burning gas, is used to produce the steel. 

According to Forbes, this method substitutes hydrogen for fossil fuels in the production of iron pellets as well as the purification of carbon.

Is the production of steel sustainable?

Steel is one of the planet’s most durable, endlessly recyclable materials. It is also the most recycled material. 

Over the course of green steel’s life cycle, investing in developing a more environmentally friendly production method will pay huge environmental dividends.

Conclusion

Green manufacturing techniques are employed to enhance, maximize yield, and reduce waste generation. Green manufacturing reduces greenhouse gas reduction in iron and steel industries and provides a cleaner energy source through new technology. 

Decreasing energy consumption in the green manufacturing process using energy-saving technology and production efficiency improves overall efficiency. 

Above all, steel industries play a vital and crucial role in the development of a country. They increased prosperity, employment, and livelihood opportunities. This is one of the reasons green steel making is encouraged.