Faculty of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran; Department of Civil and Mechanical Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark.
Faculty of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran.
Chemosphere. 2023 Dec;343:140226. doi: 10.1016/j.chemosphere.2023.140226. Epub 2023 Sep 21.
The sorption-enhanced gasification systems, which integrate the gasification process with an in-situ CO capture system, have emerged as environmentally friendly solutions. This study proposes an innovative solar-based SEG system aimed at co-generating power and hydrogen while ensuring environmental sustainability. The suggested system comprises municipal solid waste gasification, in-situ calcium looping CO capture process, steam and humid air gas turbine secondary power cycles, and a CO liquefaction system. Comprehensive analysis including energy, exergy, and exergoeconomic evaluations are conducted to assess the overall system performance. The annual electrical energy efficiency of the system is calculated to be 11.9%, resulting in a net electrical power generation of 19.48 MW. The annual total energy efficiency is determined to be 54.8%. To convert the captured CO into a liquid form, a dual-pressure Linde-Hampson cycle with a coefficient of performance of 1.9 is employed. Among the system components, the carbonator reactor exhibits the highest exergy efficiency at 88.7%, while the sorption-enhanced gasifier, calciner, and combustion chamber show relatively higher exergy destruction. The heliostat field is identified as the most expensive component in the SEG system. The levelized cost of electricity (LCOE) for the produced electricity is calculated to be 60.1$/MWh.
吸附增强气化系统将气化过程与原位 CO 捕获系统集成在一起，成为环保解决方案。本研究提出了一种创新的太阳能 SEG 系统，旨在同时产生电力和氢气，同时确保环境可持续性。所建议的系统包括城市固体废物气化、原位钙循环 CO 捕获过程、蒸汽和湿空气燃气轮机二次动力循环以及 CO 液化系统。进行了全面的能量、火用和火用经济评估分析，以评估整个系统的性能。系统的年电能效率计算为 11.9%，净发电量为 19.48 MW。年总能量效率为 54.8%。为了将捕获的 CO 转化为液体形式，采用了具有 1.9 性能系数的双压林德-汉普森循环。在系统组件中，碳酸化器反应器的火用效率最高，为 88.7%，而吸附增强气化炉、煅烧炉和燃烧室的火用破坏相对较高。定日镜场被确定为 SEG 系统中最昂贵的组件。所产生电力的平准化成本 (LCOE) 计算为 60.1 美元/MWh。
