Some special characters of Chinese heavy crudes and their influence on refi
ning process and products were discussed. There are abundant reserves of he
avy crudes in the world which are about 1.3 times those of light crudes. Th
e production of heavy crudes in China is increasing from year to year. The
Chinese refinery has been facing problems caused by a variety of heavy feed
stocks. (C) 1999 Published by Elsevier Science B.V. All rights reserved.