Aviation fuel sulfur compounds

Basically two strategies exist for the removal of sulfur compounds from hydrocarbons. They may be removed upstream or downstream of the reformer. For a higher sulfur content, as is present in mixtures of higher hydrocarbons such as heavy diesel or aviation fuel, the desulfurisation must be performed upstream of the reformer, otherwise the reforming catalyst suffers from sulfur poisoning. The operating temperature of the adsorption materials applied is usually around ambient or in a temperature range below 300 °C. Hydrodesulfurisation, which is applied on an industrial scale, is not suited to small mobile fuel processors, but could be used in stationary applications on the smaller scale. 

This test method covers the determination of mercaptan sulfur in gasolines, kerosines, aviation turbine fuels, and distillate fuels containing from 0.0003 to 0.01 mass % of mercaptan sulfur (Note 4). Organic sulfur compounds such as sulfides, disulfides, and thiophene do not interfere. Elemental sulfur in amounts less than O.OOOS mass % does not interfere. Hydrogen sulfide will interfere, if not removed as described in 9.2. 

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