中文摘要：

将生物质气化与熔融碳酸盐燃料电池（molten carbonate fuel cell，MCFC）构建为新型的生物质能高效清洁利用联合循环发电技术，气化产生的富氢气体作为MCFC的燃料，通过燃烧半焦以及MCFC中未利用的燃料为气化反应提供热量，进行生物质气化-MCFC联合循环发电系统的模拟研究。运用Aspen Plus软件搭建系统模型并计算，研究了燃料电池内重整及系统工作压力对系统性能的影响。结果表明：生物质气化-MCFC联合循环发电技术具有较高的系统发电效率，可达50％，比常规生物质气化驱动燃气轮机技术高出10个百分点；对于常压系统无需采用内重整，而对于增压系统，采用内重整对系统性能有较大改善；提高系统工作压力可改善其整体性能，最佳工作压力在0．8～1．2MPa。

英文摘要：

The modeling of the combined cycle power generation system of molten carbonate fuel cell （MCFC） with biomass gasification was carried out. Hydrogen-rich gas from biomass gasification was used as fuel for MCFC, and fuel gas unutilized in MCFC was combusted together with biomass char to supply heat for gasification. Aspen Plus was used to build the system model and perform the simulation. Effects of internal reforming of fuel cell and operation pressure upon system performance were studied. The results show that the biomass gasification and MCFC combined cycle power generation system could obtain an efficiency of near or above 50%, which is about 10 percentage points higher compared with the traditional combination of biomass gasification with gas turbine. Internal reforming is unnecessary for the atmospheric system, however, it is favorable to improve the performance of the pressurized system. Pressurized operation could improve system performance, and the favorable pressure is between 0.8 and 1.2 MPa.