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Direct reduced iron (DRI), also called sponge iron, [1] is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas which contains elemental carbon (produced from natural gas or coal) and/or hydrogen. When hydrogen is used as the reducing gas no carbon dioxide is produced.
In the iron and steel industry, direct reduction is a set of processes for obtaining iron from iron ore, by reducing iron oxides without melting the metal. The resulting product is pre-reduced iron ore. Historically, direct reduction was used to obtain a mix of iron and slag called a bloom in a bloomery.
In a blast furnace, iron oxides are reduced by a combination of CO, H 2, and carbon. Only around 10% of the iron oxides are reduced by H 2. With H 2 enrichment, the proportion of iron oxides reduced by H 2 is increased, consuming less carbon is consumed and emitting less CO 2. [47] This process can reduce emissions by an estimated 20% ...
Cons 👎 Of course, its durability means it isn't exactly lightweight. "For people with weaker or injured wrists like me, this cast iron is the real deal and so it's extremely heavy compared to ...
Florida Atlantic has fired head football coach Tom Herman, according to multiple reports. Associate head coach and special teams coordinator Chad Lunsford will take over as interim head coach for ...
P&IDs are originally drawn up at the design stage from a combination of process flow sheet data, the mechanical process equipment design, and the instrumentation engineering design. During the design stage, the diagram also provides the basis for the development of system control schemes, allowing for further safety and operational ...
Sirius XM Holdings (NASDAQ: SIRI), the operator of the country's only satellite radio company, provided a disappointing update on its financial performance on Tuesday. It also named a new chief ...
John C. Norcross is among the psychologists who have simplified the balance sheet to four cells: the pros and cons of changing, for self and for others. [19] Similarly, a number of psychologists have simplified the balance sheet to a four-cell format consisting of the pros and cons of the current behaviour and of a changed behaviour. [20]