Step 1:
After feed preparation and purification involves steam reforming and/or partial oxidation of methane to carbon monoxide and hydrogen;

Step 2:
The synthesis gas is then converted to hydrocarbons in the Fischer-Tropsch (FT) section with cobalt (with natural gas as feed) or iron-based (with heavy feeds such as coal) catalysts; and

Step 3:
The liquid products are separated in the final upgrading section, which often also involves mild hydrocracking to convert higher molecular weight waxes and lubes to LPG, naphtha, and diesel.

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