AN-15: Trace Sulfur In Fuel-Grade H2 Wihtout SCD, FPD And Thermal Desorber. A Process GC Solution - KA8000Plus Test Report
The fuel-grade hydrogen mar-ket is currently booming. Stand-ards containing the maximum allowable concentration of im-purities in hydrogen were re-cently defined as well as laboratory oriented analytical methods. Currently, for ultra-trace sulfur analysis, a gas chromatograph based on a SCD detector is suggested by some standards for laboratory tests. However, the SCD de-tector is less than ideal for process use due to its size, re-quired maintenance and potential hazard due to the use of ozone and heated furnace. Another contender is the PFPD, but this detector is also difficult to use on the field and in-volves the use of a hazardous flame which is again not ideal with the presence of flammable hydrogen.
The KA8000Plus from KA Solutions, powered by ASDevices, has been selected as the preferred process-oriented solu-tion by Impact Scientific Instrument. All the components are high quality and the sensor, the SePdd, is very simple to use. It only involves the use of inert carrier gas and is solid state. Also, there is no need for a thermal desorber to con-centrate the sulfur impurities contained in the sample to achieve the 4 ppb LOD (Limit Of Detection) target defined as the current standard.