Innovative recovery of valuable raw materials from ‘red mud’ Waste slags from the metallurgy industries often contain valuable materials, but in very small concentrations. This means that large areas of valuable land are used to accommodate reservoirs filled with what is sometimes toxic waste. We now want to use hydrogen to convert this waste into […]
New book chapter: Hydrogen Oxyfuel Combustion for Energy-Intensive Industries Esin Iplik from Linde is the first author of the chapter on “Hydrogen Oxyfuel Combustion for Energy-Intensive Industries” which can be downloaded for free here: Hydrogen Oxyfuel Combustion for Energy-Intensive Industries. The chapter is a part of the book: “Clean Energy Technologies – Hydrogen and Gasification […]
The purpose of this document is to supply necessary information for safe handlingof hydrogen for lab and pilot scale applications of HARARE project. Whenhydrogen is oxidized with oxygen, the only by-product is water vapor, making itan ideal energy carrier and oxidizing agent for a green environmentally friendlyand sustainable economy. Hydrogen is however commonly viewed as […]
Climate-friendly metal production – why is it difficult? Most people know that metals are made from ore, but how do we make gold from gravel? That’s the process we must understand to be able to make the metal industry climate friendly. Here are some alternatives for CO2-free metal production. Read this article if you want […]
Working with hydrogen gas Meet Esin! Esin Iplik is a phd-student at Linde. She works with hydrogen, a highly flammable gas that burns with an almost invisible flame! More specific she is working on hydrogen oxyfuel combustion (combustion of hydrogen with pure oxygen instead of air) at the combustion lab in Unterschleißheim – Linde Technology […]
Fun facts about hydrogen transportation: This huge truck contains only 395 kg of hydrogen, but that is actually a lot of hydrogen!! Linde transports hydrogen in huge trucks. The volume of hydrogen is 4,400 Nm3, which corresponds to 1.76 Olympic swimming pools at normal conditions. However, hydrogen is transported under 200 bar pressure. This corresponds […]
How to extract iron from Red Mud Meet Arman H Kermani (to the right) and Per Ivar Friborg (to the left) from NTNU doing small scale experiments at a SINTEF facility. The aim of these experiments, conducted by Arman, is to be able to reduce red mud with hydrogen, producing iron. Red Mud is a […]
Hydrogen as reductant – What does that mean? Metals exist in the earth’s crust mainly as oxides. It means that every metal atom is attached to one or more oxygen atoms. They form very strong bound, like a marriage. To break these bounds, we need a reductant to steal the oxygen atoms from the metal atoms. Normally carbon is used […]
Let’s talk about Red Mud (Bauxite Residue) Global annual production of red mud (bauxite residue) is about 150 million tonnes. It contains raw materials for the production of iron, silicon and aluminium, and is dumped as waste in spite of the availability of recycling technologies. This is because it is cheaper to dump bauxite residue as […]