This study analyzes the performance of an integrated power generation system that combines a gas turbine combined cycle (GTCC) with a methanation process. The methanation process uses hydrogen provided by a power-to-gas (PtG) process and carbon dioxide captured from the exhaust gas of the GTCC. The research aim was to maximize the GTCC performance through an effective integration between the GTCC and methanation. Two methods were proposed to utilize the steam generated from the methanation process. One was to supply it to the steam turbine bottoming cycle of the GTCC, and the other was to inject it into the GT combustor. Also investigated was the injection of oxygen generated in the PtG process into the gas turbine combustor. The largest improvements in the power and efficiency were predicted to be 19.3 % and 4.9 % through the combination of the steam supply to the bottoming cycle and the oxygen injection to the combustor.

这项研究分析了将燃气轮机联合循环（GTCC）与甲烷化过程相结合的集成发电系统的性能。甲烷化过程使用由动力制气（PtG）过程提供的氢气和从GTCC废气中捕获的二氧化碳。该研究的目的是通过GTCC和甲烷化之间的有效结合来最大化GTCC性能。提出了两种方法来利用甲烷化过程中产生的蒸汽。一种是将其供应给GTCC的汽轮机底部循环，另一种是将其注入GT燃烧室。还研究了将PtG过程中产生的氧气注入燃气轮机燃烧室。预计功率和效率的最大提高是19.3％和4。