H-2 yields of n-hexadecane irradiated at 330-400 degrees C were determined
and compared with that at room temperature. The temperature dependence of G
(H-2) was found to be insignificant up to 330 degrees C. High G(H-2) values
above 330 degrees C indicated the enhanced dehydrogenation of hydrocarbons
. Compared to alkane, irradiation of alkene at high temperature produces hi
gher H-2 yields as shown from the correlation between G(H-2) and the fracti
on of alkene. (C) 2000 Elsevier Science Ltd. All rights reserved.