Pyrolysis, flash operating conditions

Both the COED process and Garrett Flash Pyrolysis have been "proved" in small demonstration plants and subject to tests designed to establish optimum operating conditions for a particular feed coal, both are claimed to be ready for commercial use. 

In the early stage of Py-GC, significant interlaboratory discrepancies between pyrolysis data (pyrograms) were reported even for the same polymer types. This was mainly because of a diversity of pyrolysis devices operated under varied conditions. Owing to continued improvement of pyrolyzers and fundamental studies to control the operating conditions and obtain reproducible and characteristic degradation of the studied materials, most of the commercially available pyrolyzers now have made the interlaboratory discrepancies a minor problem. Now, various flash filament-, furnace-, and Curie-point type pyrolyzers are utilized for both Py-MS and Py-GC. 

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