Many countries which do not produce oil are rich with other sources of ener
gy that are not fully utilized, such as tar sand, oil shale and olive cake.
Limited previous work was done on producing carbonaceous matter and separa
ting volatile matter from combinations of tar sand, oil shale and olive cak
e. In this study, a process is designed and tested to produce carbonaceous
matter from combinations of the three materials mentioned above. Results in
dicate that the process is successful in producing carbonaceous matter. The
minimum temperature to achieve complete carbonization was found to be 500
degrees C for a minimum heating time of 1.5 h. Carbonized materials were te
sted for their calorific values, which indicated a successful carbonization
process. The proposed process can be scaled up and automated, and is expec
ted to be economically feasible. Moreover, the process allows for control o
f unwanted exiting polluting gases and volatile matter and therefore is env
ironmentally safe. (C) 1999 Elsevier Science Ltd. All rights reserved.