Conversion of syngas to liquid hydrocarbons via a sorption-enhanced dual bed reactor

摘要

Fischer-Tropsch synthesis (FTS) plays an important role in the production of clean liquid transportation fuels, chemicals, and other hydrocarbon products. This study proposes a novel dual bed configuration of FTS reactor in which Zeolite 4A, with the composition of Na_(12)(Si_(12)AI_(12)O_(48))-27H_2O, is considered as water adsorbent inside the first reactor, in the second converter, the heat of reaction is used to pre-heat the synthesis gas to the first bed. The simulation results show an enhancement in the gasoline production, a main decrease in undesirable product formation (CO_2 and CH_4), and a favorable temperature profile along the proposed concept rather than the conventional reactor. This paper shows how the concept of in-situ water adsorption is feasible and beneficial for dual bed FTS.