Fischer Tropsch ARGE process

For comparison, the Fischer Tropsch ARGE process and the methanol synthesis are running in boiling water reactors with a tube diameter of ca. 40 mm. The required tube length is 7.5 and 1 km/t product/h for the two syntheses, respectively. 

A number of chemical products are derived from Sasol s synthetic fuel operations based on the Fischer-Tropsch synthesis including paraffin waxes from the Arge process and several polar and nonpolar hydrocarbon mixtures from the Synthol process. Products suitable for use as hot melt adhesives, PVC lubricants, cormgated cardboard coating emulsions, and poHshes have been developed from Arge waxes. Wax blends containing medium and hard wax fractions are useful for making candles, and over 20,000 t/yr of wax are sold for this appHcation. 

L. Seglin Why has Lurgi selected the hot gas recycle process for methanation rather than the isothermal reactor (ARGE) design which they used for the Fischer-Tropsch plant in SASOL s plant in South Africa ... 

The Arge Fe-LTFT syncrude (Table 18.8)29 was much heavier than the syncrude of the two German Co-LTFT processes (Table 18.2). The Arge Fe-LTFT syncrude exemplified a high a-value Fischer-Tropsch product with a significant linear paraffinic wax fraction. The syncrude (Table 18.8) from the Kellogg Fe-HTFT synthesis was very similar in carbon number distribution to that of Hydrocol Fe-HTFT synthesis (Table 18.5). 

SASOL [Suid-Afrikaans Sintetiese OLie] Not a process but a large coal gasification complex in South Africa, operated by the South African Oil and Gas Corporation. It first operated in 1955 but took several years to be fully commissioned. A Lurgi fixed-bed gasification unit is used for the primary process. Downstream processes include the following ones, described under their respective names Arge, Fischer-Tropsch, Rectisol, Sulfolin, Synthol. 

Figure 6.11.12 shows a classical commercial Fischer-Tropsch plant, the so[Pg.675]

For modeling and simulation of a Fischer-Tropsch reactor we use the classical ARGE fixed bed process with Fe as catalyst. The recycle ratio is 2.5. Table 6.11.3 lists the other reaction conditions. Although the ARGE FT process may not be the most modern FT process it is the only one for which reUable data on the process as well... 

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