A method for systematic reactor design, described by Hillestad [1], is applied to the Fischer-Tropsch synthesis. The reactor path is sectioned into stages and design functions are optimized to maximize an objective function. Two different objective functions are considered: the yield of wax and a measure of the profitability. With the chosen kinetic model [2] and the path temperature constraine...

Power- and biomass-to-liquid fuel processes (PBtL) can utilize renewable energy residual forestry waste to produce liquid synthetic fuels, which have the potential mitigate climate impacts of current transportation infrastructure, including long-haul aviation sector. In a previous study, we demonstrated that implementing solid oxide electrolysis cell (SOEC) in PBtL process significantly increas...

Fischer-Tropsch synthesis is one of the most important catalytic reactions that convert the synthetic gas to light and heavy hydrocarbons. One of the main issues is selecting the type of reactor. The slurry bubble reactor is suitable choice for FischerTropsch synthesis because of its good qualification to transfer heat and mass, high durability of catalyst, low cost maintenance and repair. The ...

−A comprehensive parametric study for a Fischer-Tropsch (FT) synthesis process has been conducted to investigate the relation between process parameters and reactor characteristics such as conversion, selectivity, multiplicity, and stability. A flexible model was employed for this purpose, featuring the dependence of Anderson-Shultz-Flory (ASF) factor on composition and temperature. All variabl...

Environmental factors, including greenhouse gas (GHG) emissions and soil organic carbon (SOC), should be considered when building a sustainable biofuel supply chain. This work developed three-step optimization approach integrating geographical information system-based mixed-integer linear programming model to economically optimize the chain on premise of meeting certain GHG emission criteria. T...

Large amounts of global sources of remote natural reserves gas are identified along with the main objective to allow energy contained in to be moved economically to the market. The current options that are adopted to export natural gas are basically two:1. To liquefy the gas and ship it as LNG (Liquefied Natural Gas). 2. To convert it to bulk petrochemicals in particular methanol or ammonia and...

Sustainable aviation fuel (SAF) is anticipated to have a significant impact on decarbonizing the industry owing its ability be seamlessly incorporated into current infrastructure. This paper analyzes potential of meeting proposed SAF targets set by ReFuelEU initiative. The approved production pathways according ASTM D7566 using renewable bio-based feedstocks were defined and analyzed. Moreover,...

This study comprises the dynamic process simulations of a HTW gasification plant for Fischer-Tropsch (FT) liquids production under transient feedstock lignite and solid recovered fuel (SRF) as well load variations. Main objective current is proof concept in unsteady conditions effective wide control novel gasification-driven liquid fuels pathway. Therefore, analysis all sub-units an integrated ...