Pyrolysis nitrogen compounds

Thus, the most likely survivors of fuel-rich, first-stage pyrolysis are unsubstituted and oxygen substituted aromatics and nonbasic nitrogen compounds. These are the precursors to soot and N0x formation during oxygen-rich, second-stage combustion. 

Phenazines have been isolated as reaction products from mixtures resulting from pyrolysis or high temperature oxidation of aromatic nitrogen compounds. 

Saastamoinen, J.J., Hamalainen, J.P., and Kilpinen, P. (1999) Release of nitrogen compounds from wood particles during pyrolysis. Environmental Combustion Technologies, pp.1-28. 

The interaction of phosphorus and nitrogen compounds produces a more effective catalyst for the dehydration because the combination leads to further increases in the char formation and greater phosphorus retention in the char 43, 71-73). This result may be caused by the cross-linking of the cellulose during pyrolysis through... 

From the methylated pectin, the main pyrolysis compound seems to be 4-(hydroxymethyl)-butyrolactone. Two main nitrogenous compounds are formed from amidated pectin, hydroxypyridine and pyrrol-2-carboxaldehyde. Their formation can be explained by the foilowing reactions ... 

Sulphur-Nitrogen Compounds.—Linear Compounds. Results from ab initio Hartree-Fock calculations on the ground states of NSF and SSO have been reported.87 The photoelectron spectra of the bent, triatomic molecules NSF, SSO, 03, S02, and NSC1 were compared and experimental details of the photoelectron spectrum of SSO presented. Pyrolysis of the tetrathiatriazyl halide S4N3X at low pressures gives the corresponding thiazyl halide XSN where X = C1 or Br but not where X = I 88... 

Nitrogen compounds are present partly in the form of ammonia and hydrogen cyanide. The intensity of ammonia formation is high if the pyrolysis (carbonization) temperature is low and if the residence time of the carbonization gas at high temperature levels is short. Here, the equilibrium... 

Yoshida, S., W. Tarora, R. Miyoshi, K. Torikai, and H. Takahashi The effect of nitrogenous compounds on the generation of smoke constituents during tobacco pyrolysis 57th Tobacco Science Research Conference, Program Booklet and Abstracts, Vol. 57, Paper No. 54, 2003, pp. 53-54. 

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