Fischer-Tropsch (FT) has a long industrial history of producing high-quality fuels. The FT products are commercially favored mainly due to S-free and N-free. FT can be classified into two types: lowtemperature FT (LTFT) based on cobalt catalysts and high-temperature FT (HTFT) based on iron catalysts. The FT reaction is highly exothermic, and a lower temperature can improve the final conversion regarding the thermodynamic equilibrium. By contrast, the high temperature tends to terminate the carbon chains, resulting in shorter hydrocarbons. In recent years, LTFT is more popular because it can produce long-chain hydrocarbons and is less energy-intensive. Additionally, most latest research works focus on the cobalt catalysts, which are more active and widely used in industry. Hence, LTFT is considered in this work. For LTFT, the desired syngas ratio falls in the range of 2 -2.2 for H2 : CO, and the reaction temperature is reported to range from 200 to 270 ℃ 10,17,18 as well as pressure in 15 -50 bar. Typically, FT is used to produce long hydrocarbons, which can be used as waxes or be easily cracked for short chains. Hence, the value of Q should be high enough (>0.9). In our work, we use 0.93 for it. We plot the corresponding product distribution as Figure . Since the properties of hydrocarbons (HCs) are similar, we use several components to represent the whole range of HCs for simplification during the simulation as the Table . Based on the distribution of FT products, the molar fractions of representative HCs can be calculated from the sum of molar fraction of corresponding FT products. In this work, we use C 1 H -1 to approximate gasoline, while C -2 H 3! is regarded as diesel. For further simplification, wax is not taken into consideration in the system.