Name
Moving bed reducer with integration of combustor heat exchangers for hydrogen production in chemical looping systems: Process simulation and techno-economic analysis
Description

This study proposes and simulates a chemical looping combustion system with a moving bed reducer with natural gas and steam methane reforming (MCLC-SMR) for hydrogen production. The proposed system is then compared with other hydrogen production systems including the fluidized bed chemical looping combustion system coupled with the steam methane reforming (FCLC-SMR), the chemical looping partial oxidation system combined with the water-gas-shift reaction (CLPO-WGS), the 3-reactor chemical looping system for hydrogen generation (CLHG-3R), the conventional steam methane reforming (SMR) and auto-thermal reforming (ATR) systems with CO2 capture. The process simulation results indicate that a 64% decrease in particle circulation rate in MCLC-SMR compared to FCLC-SMR. MCLC-SMR also shows the best system performance regarding cold gas efficiency (79%) and effective thermal efficiency (75%). Furthermore, the economic assessment indicates that MCLC-SMR can achieve the lowest levelized cost of hydrogen (LCOH) of .34/kg at 30 ton/hr H2 production capacity, and CLHG-3R can achieve the lowest LCOH of .06/kg at 1 ton/hr H2 production capacity among the six hydrogen production methods. At 30 ton/hr H2 production capacity, the chemical looping reactors in MCLC-SMR are 37% cheaper than in FCLC-SMR. The sensitivity analysis also indicates that MCLC-SMR remains the most economical hydrogen production method over a wide range of price parameters (the prices of particles, chemical looping reactors, natural gas, and electricity).

Location Name
Max Bell 251
Full Address
Banff Centre for Arts and Creativity
107 Tunnel Mountain Dr
Banff AB T1L 1H5
Canada
Session Type
Poster
Abstract ID
1118