ABSTRACT
The determination of an accurate product spectrum for the Fischer-Tropsch (FT) reaction is not trivial because there is not an analytical technique available to accurately quantify a product sample consisting of hydrocarbons and oxygenates
10.1 Introduction ............................................................................................. 185 10.2 Method ..................................................................................................... 186 10.3 A Closer Look at the Catalyst Surface .................................................... 190 10.4 Correlation of Surface Properties with Product Selectivities .................. 192 10.5 Conclusions .............................................................................................. 196 References ......................................................................................................... 196
with carbon numbers ranging from C1 to C100+. In the case of a continuously stirred tank reactor (CSTR), the product exits the reactor in either the gas or liquid phase, with the heavier products condensed in two separate catch pots. For a full product spectrum, the four different samples (tail gas, water, oil, and wax) are analyzed separately and combined for the construction of a full product spectrum to represent the catalyst produced during the sample period. Based on this product spectrum, a selectivity model was developed and used to gain an understanding of the factors influencing selectivity changes in a low-temperature Fischer-Tropsch (LTFT) process.
