Deactivation and regeneration of Fischer-Tropsch cobalt catalyst
LI Jiabo
LIN Quan
SHI Yulin
HU Yunjian
LUO Xi
Abstract：In order to decrease cost of Fischer-Tropsch cobalt catalyst and improve its stability and lifetime,the inactivation and regenera-tion mechanism of Fischer-Tropsch cobalt catalyst was analyzed.Based on the regeneration mechanism,the regeneration methods of Fisch-er-Tropsch cobalt catalyst were introduced.The results indicated that poison,sinter,carbon deposition,oxidation and solid reaction were the main causes for catalyst inactivation.The stability and lifetime of Fischer-Tropsch cobalt catalyst could be improved by purifying feed gas,regulating reaction between cobalt and support,improving catalyst formulation and process,controlling cobalt particle size and par-tial pressure ratio between H2 O and H2 .The catalyst could be regenerated by de-wax,oxidation and reduction,oxidation was the critical step.The heating rate and heat removal should be controlled during oxidation process.Multi-oxidation and reduction could improve the u-niformity of cobalt and reduction agents,and improved the activity of catalyst.
Keywords：indirect coal liquefactionFischer-Tropsch synthesiscobalt catalystcatalyst deactivationcatalyst regeneration
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 58-62 )