Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor

Pietro Bartocci (), Alberto Abad, Aldo Bischi, Lu Wang, Arturo Cabello, Margarita de Las Obras Loscertales, Mauro Zampilli, Haiping Yang and Francesco Fantozzi
Additional contact information
Pietro Bartocci: Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain
Alberto Abad: Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain
Aldo Bischi: Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
Lu Wang: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
Arturo Cabello: Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain
Margarita de Las Obras Loscertales: Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain
Mauro Zampilli: Department of Industrial Engineering, University of Perugia, Via G. Duranti 67, 06125 Perugia, Italy
Haiping Yang: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
Francesco Fantozzi: Department of Industrial Engineering, University of Perugia, Via G. Duranti 67, 06125 Perugia, Italy

Energies, 2023, vol. 16, issue 5, 1-20

Abstract: This paper provides a simple methodology for the design of the air reactor of a chemical looping combustor to optimize its characteristics when it is employed connected to a turbo expander to produce power. The design process, given a certain objective (e.g., electric power) defines the reactor specifics, namely height and diameter, taking into account the following aspects: solids inventory of the air reactor; gas velocity; air reactor transport disengaging height (TDH); solids concentration profile along the reactor height, dense bed height; freeboard height; pressure drop depending on air reactor injectors design and configuration. The total air reactor height was about 9.5 m, while the diameter was about 1.8 m. The total inventory was about 10,880 kg; while the circulation rate in the air reactor was about 110 kg/s. The operating pressure and temperature were, respectively, 12 bar and 1200 °C. The average velocity of the gases inside the reactor was about 4 m/s. The fluidization regime resulted to be comprised between turbulent and fast fluidization. Further work must be directed into the estimate of the pressure drop of the reactor, which will affect the plant efficiency in a considerable way.

Keywords: carbon negative technologies; gas turbines; pressurized chemical looping combustor; biofuels; Bioenergy with Carbon Capture and Storage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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