플라즈마 열분해에 기반한 청록 수소 생산 공정의엑서지 분석 및 최적화

Recently, the process of producing turquoise hydrogen through methane pyrolysis hasgarnered significant attention due to its lower CO2 emissions per unit of hydrogen compared to bluehydrogen, and its lower production costs compared to green hydrogen. The methane pyrolysis processfor turquoise hydrogen production has recently commenced commercial operation using a plasma reactordeveloped by Monolith. In this study, a process model for the plasma-based turquoise hydrogen processwas implemented using Aspen Plus™. Additionally, an exergy analysis of the key components of theprocess was conducted to optimize the Rankine cycle and the operating conditions of the plasma reactor.
By adjusting the temperature of the hydrogen recirculated for plasma generation, it was possible tosimultaneously reduce the required electrical energy for plasma generation and the load on the Rankinecycle, thereby reducing exergy losses and improving overall efficiency.