| 초록 |
Fischer-Tropsch (FT) synthesis converts syngas to hydrocarbons of different carbon chain lengths, and thus can be used to produce various products such as linear alpha olefin, naphtha, wax and diesel. FT synthesis can be broadly classified into two categories based on the reaction temperature: high-temperature FT (HTFT), and low-temperature FT (LTFT). A major difference between HTFT and LTFT lies in the product portfolio, and LTFT is typically used to produce C5+ hydrocarbons such as wax and diesel. In the LTFT process, various catalysts can be used, such as Co, Ru/Al3, Co/Re/Ni/Al2O3, Fe/Cu/K, which feature different product compositions and overall conversion. Such feature can significantly affect the design of separation processes, as the optimal process configuration and its optimal operating conditions can vary with the catalyst used. Thus, a comprehensive techno-economic analysis needs to be performed to provide a guideline for the selection of LTFT catalyst. In this study, separation processes are designed for several representative catalysts, and they are compared in terms of economics and production rates of different products. |
