Calix - Carbon Dioxide (CO2) Emissions Technology

Energy optionality

Designed to deliver high temperature metals and minerals processing with electricity, conventional and/or alternative fuels.

Flexible electrification

Flexible operations compatible with variable renewable energy sources and grid balancing applications.

Capture of unavoidable emissions

Unavoidable process CO2  emissions from cement and lime production are efficiently separated, enabling cost-effective capture of industrial emissions for use or storage.

Value-added mineral products

Calix’s platform technology is well suited to the processing of fines or dust that may otherwise be discarded as waste. Processing at the mine site may reduce material transport volumes and add value to refined mineral products.

Minimal hydrogen use

For green iron and steel and other reduction reactions, hydrogen is used only as a reductant. It is not combusted as a fuel and unused hydrogen may be readily recycled.

Highly-active materials

Flash heating can produce high surface area materials with enhanced chemical or bioactivity.

A new way to heat stuff up

Calix’s core platform technology uses a unique, indirect heating process to separate what we heat from how we’re heating it. Specialised steel tubes are heated externally, using either electricity and renewable energy sources, alternative or conventional fuels.

Ground minerals float down through the tubes, where they are quickly heated by heat radiated from the tube walls. The indirect heating process enables clean, efficient and precise electric heating to replace inefficient combustion and carbon-intensive fossil fuels.

Any carbon dioxide released directly from the raw material, such as emissions unavoidably produced in the making of cement and lime, are kept pure, and can be efficiently captured for use or storage.

For green iron and steel, hydrogen is used to remove oxygen from the mineral. Hydrogen, however, is not combusted or used as a fuel, and is easily recycled. This unique feature of the technology aims to enable the lowest cost solution for the production of green iron and steel.

Calix’s flash calcination technology can also create high surface area materials with enhanced chemical 

Calix’s licensing, joint ventures and spin-out strategies are designed to commercialise each new application at speed, and seize opportunities to urgently address some of humanity’s greatest global sustainability challenges.