Methods of manufacturing synthetic gasoline

Synthetic gasoline can be manufactured by-
Direct method (Bergius process) and indirect method (Fischer tropsch process)
Bergius process

The coal is finely ground and dried in a stream of hot gas. The dry product is mixed with heavy oil. Tungsten or molybdenum sulphides or tin-nickel oblate or iron sulphate present in the coal itself may be used as a catalyst. The mixture is pumped into a rector. The reaction produces heavy oils, middle oils, gasoline and gases.

The overall reaction is as follows

The immediate product from the rector must be stabilized by hydrogenation. The product stream is high naphthenic and aromatics, low in paraffin’s and very low in olefins.

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