Burning Pecan Shells releasing the following known chemicals:
From
https://etd.auburn.edu/bitstream/handle/10415/2260/brad_thesis_final.pdf?sequence=2
Table 4.3 – Effect of heating rate on the concentration (ml) of gases produced during thermal decomposition of pecan shells in air atmosphere
Heating rate (°C/min)
Gas Type
5 10 20 30 40
Carbon dioxide 0.0924 0.0994 0.0903 0.0826 0.0889
Carbon monoxide 0.0197 0.0164 0.0110 0.0053 0.0031
Isocyanic acid 0.0128 0.0098 0.0083 0.0070 0.0012
Carbonyl sulfide 0.0041 0.0028 0.0018 0.0007 0.0004
Acetic acid 0.0032 0.0034 0.0043 0.0025 0.0007
Nitrous oxide 0.0002 0.0003 0.0003 0.0004 0.0005
Methane 0.0004 0.0003 0.0002 0.0001 0.0003
Ethylene 0.0005 0.0003 0.0009 0.0001 0.0001
Ammonia 0.0006 0.0009 0.0003 0.0004 0.0003
Hydrogen cyanide 0.0022 0.0021 0.0023 0.0016 0.0011
Formic acid 0.0010 0.0001 0.0003 0.0001 0.0001
Formaldehyde 0.0002 0.0004 0.0007 0.0002 0.0002
Methyl isocyanate 0.0385 0.0379 0.0274 0.0346 0.0348
Ethanol 0.0057 0.0059 0.0052 0.0049 0.0051
Methanol 0.0003 0.0002 0.0002 0.0003 0.0001