Biomass Integrated Gasification Combined Cycle (BIGCC) power system is a potential application of biomass gasification technology to control CO₂ emissions from power generation processes. Nevertheless, there is no study of BIGCC systems that provides detailed techno-economic comparative among its different technological alternatives. This study provides the techno-economic comparative analysis of eight BIGCC system designs that include the technology options of the biomass gasification, the power generation, and the CO₂ emission control. Results show that the Levelized Cost of Electricity (LCOE) of these systems is ranged from 13.1 ¢/kWh to 25.9¢/kWh. For current designs, the Selexol CO₂ removal technology is more economical than the MEA CO₂ capture process. Furthermore, when the biomass price is lower than 10 $/ton, the air gasification BIGCC systems can compete with the current electricity generation technology, whereas when the CO₂ emission price is higher than 90 $/ton, the additional CO₂ Capture and Storage technology has the potential to reduce the LCOE of BIGCC systems. Moreover, the sensitivity analysis estimates the impacts of other key economic parameters on the LCOE and Monte Carlo method is used to show the uncertainty of simulation.

生物质整体气化联合循环（BIGCC）电力系统是生物质气化技术在控制发电过程中的CO ₂排放方面的潜在应用。然而，没有关于BIGCC系统的研究可以在其不同的技术替代方案之间提供详细的技术经济比较。这项研究提供了八种BIGCC系统设计的技术经济比较分析，其中包括生物质气化，发电和CO ₂排放控制的技术选择。结果表明，这些系统的平均电力成本（LCOE）为13.1美分/千瓦时至25.9美分/千瓦时。对于当前的设计，Selexol CO ₂去除技术比MEA CO ₂更经济捕获过程。此外，当生物质价格低于10美元/吨时，空气气化BIGCC系统可以与当前的发电技术竞争，而当CO ₂排放价格高于90美元/吨时，额外的CO ₂捕集与封存技术具有降低BIGCC系统的LCOE的潜力。此外，敏感性分析估计了其他关键经济参数对LCOE的影响，并使用蒙特卡罗方法来显示模拟的不确定性。