Two advanced FTIR analysers are being employed to monitor multiple gas concentrations simultaneously in laboratory scale reactors at Sasol’s Research and Technology Centre in South Africa.
The monitors, which were supplied by Gasmet Technologies (Finland), are being used to study changes in gas composition during the preparation of Fisher Tropsch catalysts which are used in gas-to-liquids (GTL) processes.
Sasol is an international integrated energy and chemical company, and a global leader in GTL and CTL technology. The company’s Nishlan Govender, a Senior Scientist in Fischer Tropsch research, uses the FTIR analysers to determine the completion of a reaction in the preparation of a Fischer–Tropsch catalyst by tracking the tail composition in the reactor. This includes the analysis of CO, CO2, CH4, H2O and hydrocarbons up to C6. The H2O measurements are corroborated by readings from a dewpoint analyser that is used routinely in the laboratory.
Both of the FTIR analysers (DX4000) are used in conjunction with Gasmet portable sampling systems which utilise a ‘hot-and-wet’ measurement principle, so that a truly representative sample is analysed with no requirement for drying or dilution. This portable technology was chosen because it can be quickly and simply deployed, producing highly accurate readings for up to 50 compounds simultaneously.
A landmark agreement has been signed between Air Products South Africa and Sasol Chemical Industries, which will see Air Products purchase the Sasolburg A2100 air separation unit (ASU), and simultaneously commence with a new long-term supply agreement.
At a time when the Southern and pan-African mining and engineering sectors are facing many challenges, companies are looking for suppliers which can offer them the widest and most robust range of products to assist them in addressing the challenges that they face.
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