Design and operation of a 1 MWth chemical looping plant

Chemical looping combustion of coal in a 5 kWth interconnected fluidized bed reactor using hematite as oxygen carrier

“…It was noted that in other successful reactor units the carbon stripper was configured to improve the carbon capture efficiency, where char can be further gasified by steam [36,38].…”

“…In their design, the fuel reactor was a circulating fluidized bed and a four-chambered carbon stripper was implemented after the fuel reactor to further convert the lighter char particles leaving the fuel reactor. Technische Universität Darmstadt has also constructed a larger auto-thermal chemical looping combustion unit in the scale of 1 MW th [38]. Here, the air reactor and fuel reactor were designed as two interconnected circulating fluidized bed reactors, between which a carbon stripper of a rectangular shaped bubbling fluidized bed was connected to improve the coal combustion efficiency and carbon capture efficiency.…”

Multi-scale simulation of chemical looping combustion in dual circulating fluidized bed

“…Chemical looping combustion is a promising CO 2 capture technology, which isolates the fuel source from the oxygen source by oxygen carriers and achieves inherent separation of CO 2 [1,2]. In the last two decades, diligent research efforts have been devoted to develop the CLC system [3][4][5]. Cuadrat et al [6] investigated a coal fuelled CLC reactor using ilmenite as oxygen carriers.…”

A Polygeneration System Based on Multi-Input Chemical Looping Combustion

“…The reduced oxygen carrier is then transported to the air reactor, where it is oxidized back to its original form by air. A recent 1 MWth chemical looping plant is reported by Ströhle [15]. A 25 kWth CDCL (coal direct chemical looping) sub-pilot plant has been constructed and demonstrated successfully at Ohio State University with the support from National Energy Technology Laboratory (NETL) of the United States Department of Energy (USDOE) [16].…”