The Anonymous Widower

Startup Promises Green Steel By 2025 As Decarbonisation Race Heats Up

The title of this post, is the same as that as this article on the Australian Broadcasting Corporation.

This is the first paragraph.

A new player has emerged in the developing field of zero-emissions steel making, promising to deliver commercial quantities of green steel by 2025 without using hydrogen.

It sounds too good to be true.

But.

  • The process uses electricity, which of course can be renewable.
  • The process comes from research at Massachusetts Institute of Technology (MIT).
  • The process doesn’t use hydrogen, coal or even a blast furnace.
  • Electricity is used to turn iron ore into liquified metal.
  • It is based on a technique called Molten Oxide Electrolysis (MOE), which is used in aluminium refining.

A American startup called Boston Metal is developing the technology.

If it can be made to work, it is truly game-changing technology.

Any area in the world, with large amounts of renewable energy, (Think Scunthorpe and Teesside) can transform their steelmaking to zero-carbon in a few years.

February 10, 2022 Posted by | Energy, World | , , , , , , | 2 Comments

Bill Gates Invests In Verdox’s Carbon Capture Technology

The title of this post, is the same as that of this article on The Times.

This is the first paragraph.

Bill Gates has invested in a carbon capture start-up. His Breakthrough Energy Ventures fund has taken part in an $80 million fundraising for Verdox, a Massachusetts-based business whose technology aims to remove carbon dioxide directly from the air.

I have my doubts that this technology will ever be economic, especially as plant, trees and in particular rain forests, do a good job at using the carbon dioxide. Planting trees is also one of those feel-good community activities.

This last paragraph gives a few details of the process.

Verdox, which is a spinout from the Massachusetts Institute of Technology, claims that its system is cheaper and more efficient. It uses a special plastic, which when charged with electricity, can extract CO2 from a mixture of gases. A change in voltage releases the CO2.

It is a process with a good pedigree, but you’ve still got to find a way to store or use the carbon dioxide.

Plants worked out how to do that eons ago.

 

February 4, 2022 Posted by | Energy | , , , , , | Leave a comment