Solution combustion synthesized oxygen carriers for chemical looping combustion

Progress of energy system with chemical-looping combustion

“…It indicated that carbon deposition can be apparently reduced by addition of water into CH 4 . The similar phenomena and conclusion are also obtained by other researchers [16] . Furthermore, by synergetic combination of nickel oxide with cobalt oxide, a new looping material has been synthesized by use of a double metal oxide and by addition of YSZ.…”

“…In early research, Ni based oxygen carriers were studied by many researchers for their high reduction and oxidation rates and conversions, good regenerability and so on. The major contributors include Tokyo Institute of Technology in Japan [14,15] , Purdue University in America [16] and Politecnico di Milano in Italy [17] . The metal Ni, however, is too expensive.…”

Hydrogen production with CO2 capture by coupling steam reforming of methane and chemical-looping combustion: Use of an iron-based waste product as oxygen carrier burning a PSA tail gas

“…Among them, iron, nickel and copper have been selected as the most promising ones [7][8][9]. To develop an oxygen carrier for the process synthetic particles based on a metal oxide and a support has been prepared by several methods with high performance and stability [10][11][12][13]. However, another route of development is to find low-cost minerals or ores and waste products as oxygen carriers.…”

Chemical Looping Particles

“…36 The process involves mixing nitrates of the metal and the support in the desired ratio in water solution along with glycine (combustible agent). This solution is then heated to vaporize the water.…”

“…The particles obtained from this method showed good reactivity for multiple cycles and high crushing strength. 36 The major issue was the high attrition rates ( ∼ 10%) and deteriorating performance ( ∼ 13% reduction in activity after 10 cycles) of the extruded particles. 36 The advantages and disadvantages of the various particle synthesis methods discussed above are summarized in Table 2.6 .…”