process plant

Gas-to-liquids processes - a growing sector in chemical engineering.

Q. What are Gas-to-liquids processes?
A. Gas-to-liquids (GTL) processes convert gases, usually methane, into liquid chemicals such as methanol, or a fuel such as diesel. Liquids have a high energy density and are easy to store and distribute.

Q. What are the applications for Gas-to-liquids processes?
A. There are three main types of application:-

  • Converting vented gases at oilfields into liquids, so that they aren't wasted and flared off.
  • As a more economical means for using methane as the major raw material for manufacturing commercial chemicals and plastics.
  • As a means for converting methane into fuels such as petrol/gasoline/diesel/kerosene, where natural gas rather than oil is the main raw material.

Q. What are the possible applications for the Omnagen Cell?
A. Carrying the reactions out in a fuel cell allows more control than in a conventional process, as energy is taken out as electricity. Examples are:-

  • Methane to syngas (a mixture of carbon monoxide and hydrogen); existing processes can then convert this to liquids.
  • Ammonia to nitric oxide, then nitrogen dioxide, and finally nitric acid. Controlling the reaction can limit the amount of nitrous oxide (N2O) produced, as well as generating electricity. N2O is a significant greenhouse gas.
  • Hydrogen sulphide, is often present in oil and gas. It has to be separated out, and can be converted to sulphur dioxide, then sulphur trioxide, and finally sulphuric acid.

Many of the products are made on a huge scale, so the potential savings in energy costs and carbon dioxide emissions are massive, as shown in the graph below.

emissions saved

To discover more about these reactions, and how the cells work, please contact Ken Omersa; phone and email details are provided here.

industrial emissions

industrial emissions

Industrial carbon emissions are high, and are continuing to rise with increasing economic activity. The need to limit climate change means that carbon emissions have to reduce rapidly. US data shows that the gap between actual and target emissions is already huge. Read more...


hybrid efficient vehicles

hybrid efficient vehicles

Diesel engines are more fuel-efficient than petrol/gasoline engines, but their NOx and particulate emissions cause problems, most notably in cities. Hybrid vehicles operating in "electric-mode" produce no pollution, which is good for city use. However, fuel efficiency on longer distances needs improvement. Omnagen has a solution. Read more...