PREPARATION PROCEDURE FOR THERMAL CONVERSION OF HEAVY HYDROCARBON STOCK Russian patent published in 2014 - IPC C10G9/36 

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to the preparation procedure of a heavy hydrocarbon stock for thermal conversion that includes preheating and mixing of the heavy hydrocarbon stock with a circulating part (recycle) of a gas dehydrocyclodimerisation product formed in result of thermal conversion, pretreated from hydrogen sulphide and potentially mixed with hydrocarbon gases, preferably containing hydrocarbons C₃-C₄. The recycle is obtained by means of the dehydrocyclodimerisation product cooling and its separation into gas and a liquid product, separation of the separated gas into balance and recycle parts, the latter is mixed up with the liquid product of separation. The balance part of the separated gas is used as a fuel for auxiliaries.

EFFECT: increasing the yield of light products.

2 cl, 1 dwg