| 摘要 |
The invention relates to a method to operate a power generation system (PGS) and the device itself comprising: - an oxy-fuel-burner (OXB), - a first heat exchanger assembly (HEA1), - a rankine-cycle (RC), - wherein said rankine-cycle (RC). To improve the efficiency further features are proposed. Said oxy-fuel burner (OXB) generates an exhaust fluid (EXH) submitted to an exhaust fluid line (EXL) and said rankine-cycle (RC) is operated with said process fluid (PF) which is circulating separately from said exhaust fluid (EXH). Said exhaust fluid line (EXL) is provided with a recirculation line (RCL) downstream said first heat exchanger assembly (HEA1) and upstream said feed water heat exchanger (FWE) extracting exhaust fluid (EXH) from said exhaust fluid line (EXL), conducting extracted exhaust fluid (EXE) to a pump (PU) to increase pressure and injecting downstream said extracted exhaust fluid (EXE) into said oxy-fuel burner (OXB). |
