Abstract: The syngas consumption rate r_CO and CH₄ production rate r_CH4 along a fixed-bed reactor for Fischer-Tropsch synthesis were measured via a high-throughput kinetic reactor under different inlet pressure (p⁰_H2, p⁰_CO). The data showed that within non-diffusion limited regime the feed ratio p⁰_H2/p⁰_CO is the determining variable while p⁰_H2+CO is non-sensitive. The bed-level intrinsic rate measured under various inlet pressure can be used to establish the pellet level rate-law. The results showed that for rate law using the simple (p_H2, p_CO) representation the parameters for CO consumption reaction are dependent on the local conversion at pellet position along the bed.

Key words: Fischer-Tropsch reaction, kinetics, rate law, high-throughput experimentation