GTL oils could help to improve petrol and engine lubricants

The GTL plant turns clean natural gas (methane) into five useful oil products through complex chemical transformation processes.

Methane is converted into these useful liquid products over three stages. First, the methane is reacted with oxygen to create a synthesis gas in reactors operating at up to 1,300ºC. The synthesis gas is then converted into liquid waxy hydrocarbons through the Fischer-Tropsch process.

Finally, the liquid waxy hydrocarbons are ‘cracked’, or broken down, into the five useful products using specially developed technology involving novel cobalt catalysts.

Gas oil is one of those useful GTL products being used to make a new cleaner car fuel. Colin Abraham, Shell’s vice-president for lubricants and commercial fuels marketing, said there are four main benefits to the new GTL fuel: reduced emissions; reduced noise emissions; ease of integration into existing fuel systems; and lack of investment needed into new infrastructures.

Abraham said Shell would not be introducing the fuel to petrol stations. ‘We will target airports and customers who have the ability to store the fuel themselves,’ he said. ‘The plan is not to make GTL fuel available widely across the network as this would put a strain on infrastructure.’