KINETICS OF SLURRY PHASE FISCHER-TROPSCH SYNTHESIS | |
Bukur, Dragomir B. ; Froment, Gilbert F. ; Nowicki, Lech ; Wang, Jiang ; Ma, Wen-Ping | |
Texas A & M University | |
关键词: Research Programs; Packed Beds; Testing; 01 Coal, Lignite, And Peat; Deactivation; | |
DOI : 10.2172/891511 RP-ID : None RP-ID : FG26-02NT41540 RP-ID : 891511 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
This report covers the first year of this three-year research grant under the University Coal Research program. The overall objective of this project is to develop a comprehensive kinetic model for slurry phase Fischer-Tropsch synthesis on iron catalysts. This model will be validated with experimental data obtained in a stirred tank slurry reactor (STSR) over a wide range of process conditions. The model will be able to predict concentrations of all reactants and major product species (H{sup 2}O, CO{sub 2}, linear 1- and 2-olefins, and linear paraffins) as a function of reaction conditions in the STSR. During the reporting period we have completed one STSR test with precipitated iron catalyst obtained from Ruhrchemie AG (Oberhausen-Holten, Germany). This catalyst was initially in commercial fixed bed reactors at Sasol in South Africa. The catalyst was tested at 13 different sets of process conditions, and had experienced a moderate deactivation during the first 500 h of testing (decrease in conversion from 56% to 50% at baseline process conditions). The second STSR test has been initiated and after 270 h on stream, the catalyst was tested at 6 different sets of process conditions.
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