Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Dawid J. Duvenhage"'
Publikováno v:
Journal of Materials Science. 49:2810-2823
This study found that promoted precipitated iron catalysts, containing large quantities of Hematite, demonstrated adequate activity, selectivity, and attrition resistance operating under commercial Fischer–Tropsch synthesis conditions in a product
Autor:
Dawid J. Duvenhage, Neil J. Coville
Publikováno v:
Applied Catalysis A: General. 298:211-216
A pilot plant Fischer–Tropsch synthesis reaction was performed in a fixed bed reactor containing a precipitated iron catalyst. Sections were taken from the reactor and tested for Fischer–Tropsch activity in micro reactors. The catalyst sections w
Autor:
Neil J. Coville, Dawid J. Duvenhage
Publikováno v:
Catalysis Letters. 104:129-133
A range of 5% Fe/5% Co bimetallic catalysts supported on TiO2 was promoted with 0.1%, 0.5% and 1.0% potassium, chromium and manganese respectively, and their physical properties and Fischer–Tropsch (FT) CO hydrogenation capabilities were evaluated.
Autor:
Dawid J. Duvenhage, Neil J. Coville
Publikováno v:
Applied Catalysis A: General. 289:231-239
A series of catalysts, Fe:Co/TiO 2 , were made with different total metal loadings (Fe:Co wt.% loading; 1:1–5:5), with different Fe:Co ratios (at 10% metal loading) and using different synthetic procedures (impregnation versus physical mixing). The
Autor:
Terry Shingles, Dawid J. Duvenhage
Publikováno v:
Catalysis Today. 71:301-305
Since Sasol introduced the Kellogg designed circulating fluidized bed (CFB) reactors at Sasol 1 in the 1950s, the commercial high-temperature Fischer–Tropsch (HTFT) process has had a dynamic ongoing development resulting, recently, in the introduct
Autor:
Dawid J. Duvenhage, Neil J. Coville
Publikováno v:
Applied Catalysis A: General. 153:43-67
The effect of different iron loadings (0.1%; 1%; 5%; 10%) on a 10% Co TiO 2 catalyst was studied by a range of surface and bulk characterization techniques. The combination of techniques (B.E.T.; CO-chemisorption, desorption; DSC; XRD; XPS; TPR; TPD;
A DRIFTS study of CO on Co/TiO2 (10% Co) has been carried out. Data reveal that highly reduced cobalt shows a strong v(CO) absorption at ∼2010 cm−1 while a partially reduced sample absorbs strongly at ∼2060 cm−1. The effect of pressure (2–1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e36f5e2baccf1ef7f2610e3f04f9918e
https://doi.org/10.1016/s0167-2991(97)80333-3
https://doi.org/10.1016/s0167-2991(97)80333-3
The deactivation of a Fischer-Tropsch precipitated iron catalyst has been investigated by means of a novel reactor study. After use of the catalyst in a single or dual pilot plant reactor, sections of the catalyst were transferred to microreactors fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::115cc35414f5c242dad1805b29a385de
https://doi.org/10.1016/s0167-2991(08)62760-3
https://doi.org/10.1016/s0167-2991(08)62760-3