Decalin, hydropyrolysis

Mechanism of Decalin Hydropyrolysis. On the basis of some principles of the Rice-Kossiakoff free-radical theory (7-JO), the compositional changes summarized in Table VI and Figure 10 can be rationalized in terms of the following suggested mechanism for hydropyrolysis of 2 (Scheme 2) ... 

The hydropyrolysis of a representative polycyclic naphthene, i.e., decalin (2), was investigated as a function of reaction temperature (525°-625°C) and hydrogen pressure 500-2000 psig). In addition, a comparison between hydropyrolysis and thermal cracking of 2 was made by doing a parallel study with this compound under nitrogen pressure, using otherwise identical experimental conditions. The apparatus and experimental methods were the same as in the study of n-hexadecane (see Experimental section). 

Table V. Comparison of Product Composition from Hydropyrolysis (HP) and Thermal Cracking (TC) of Decalin (2)° d...

Table VI. Change in Product Composition from Hydropyrolysis of Decalin (2) as a Function of Reaction Temperature "0...

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