CHEMICAL LOOPING AUTOTHERMAL REFORMING AT A 120 kW PILOT RIG
Chemical looping with selective oxygen transport allows two step combustion or autothermal reforming without mixing of fuel and air. The reactor system consists of two reactors, an air reactor and a fuel reactor with a suitable oxygen carrier that transports the necessary oxygen for operation. In the present study, a highly active nickel based oxygen carrier is tested in a novel dual circulating fluidized bed (DCFB) system at a scale of 120 kW fuel power. The mean particle size of the oxygen carrier is 120 μm and the pilot rig is fueled with natural gas. For the investigated oxygen carrier high CH4 conversion is achieved. Air/fuel ratio is varied at three different fuel reactor temperatures. For chemical looping reforming one can observe synthesis gas composition close to thermodynamic equilibrium. In spite of the fact that no additional steam has been added to the fuel besides the one present through steam fluidization of the loop seals, coke formation does not occur at global stoichiometric air/fuel ratios above 0.46.
chemical looping autothermal reforming ozygen carrier gas-solid reactor fluidized bed system nickel ozide
Johannes Bolhar-Nordenkampf Tobias Pr(o)ll Philipp Kolbitsch Hermann Hofbauer
Vienna University of Technology, Getreidemarkt 9/166, 1060 Vienna, Austria
国际会议
第20届国际流化床燃烧会议(20th International Conference on Fluidized Bed Combustion)
西安
英文
603-607
2009-05-18（万方平台首次上网日期，不代表论文的发表时间）