Gas & Liquid Manufacturing
The midstream business has been configured as a Gas and Liquids Manufacturing Infrastructure strategic business that leverages strategic partnerships and executes its strategic initiatives such as the re- instatement of the Gas To Liquids Refinery at full capacity.
The Gas to Liquid (GTL) Refinery
The GTL Refinery, when operational, used to produce ultra-clean, low-sulphur, low-aromatic synthetic fuels and high-value products converted from natural methane-rich gas and condensate using the unique GTL Fischer–Tropsch technology. We used to produce key commodities, including unleaded petrol, diesel, kerosene, fuel oil, propane, liquid petroleum gas (LPG), and export distillates including the production of alcohol.
GTL is a refinery process that converts natural gas or other gaseous hydrocarbons into longer-chain hydrocarbons such as gasoline or diesel fuel. The process converts methane-rich gases into liquid synthetic fuels by direct conversion or, in PetroSA's case, by using synthetic gas (syngas) as an intermediate through the Fisher Tropsch process.
This series of conversions starts with the reforming of methane (natural gas) to carbon dioxide, carbon monoxide, hydrogen and water. The carbon monoxide to hydrogen (H2) ratio is adjusted using the water gas shift reaction and the removal of excess carbon dioxide in an aqueous solution of alkanolamine .
The synthesis gas (syngas) is then chemically reacted over an iron or cobalt catalyst to produce liquid hydrocarbons and other byproducts.
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