Method for cracking hydrocarbon products

Claim 1

A METHOD OF DRIVING A GAS TURBINE WHILE CRACKING NAPHTHA, SAID METHOD COMPRISING COMPRESSING AN OXYGEN CONTAINING GAS IN A COMPRESSOR, MIXING THE COMPRESSED GAS AND A HYDROCARBON FUEL IN A COMBUSTION CHAMBER AND EFFECTING COMPLETE COMBUSTION OF THE FUEL IN SAID CHAMBER TO PRODUCE A COMBUSTION GAS AT A TEMPERATURE OF BETWEEN 1300 AND 1500*C., MIXING SAID COMBUSTION GAS WITH A MIXTURE OA NAPHTHA AND SUPERHEATED STEAM IN A CRACKING FURNACE TO CRACK THE NAPHTHA, THE NAPHTHA AND SUPERHEATED STEAM BEING ADDED TO THE COMBUSTION GAS IN A QUANTITY AND A PRESSURE SUCH THAT THE TEMPERATURE OF THE THUS OBTAINED GAS MIXTURE IS BETWEEN 700 AND 800*C., ADIABATICALLY EXPANDING THE LATTER GAS MIXTURE IN A TURBINE TO DRIVE THE SAME WHILE RAPIDLY COOLING THE GAS MIXTURE TO PREVENT POLYMERIZATION THEREOF, COOLING AND THEREAFTER SEPARATING THE CRACKED CONSTITUENTS OF THE NAPHTHA FROM THE GAS MIXTURE AFTER THE LATTER HAS BEEN DISCHARGED FROM THE TURBINE, AND DRIVING SAID COMPRESSOR BY SAID TURBINE.

Claim 2

A METHOD OF DRIVING A GAS TURBINE WHILE CRACKING NAPHTHA, SAID METHOD COMPRISING COMPRESSING AN OXYGEN CONTAINING GAS IN A COMPRESSOR, MIXING THE COMPRESSED GAS AND A HYDROCARBON FUEL IN A COMBUSTION CHAMBER AND EFFECTING COMPLETE COMBUSTION OF THE FUEL IN SAID CHAMBER TO PRODUCE A COMBUSTION GAS AT A TEMPERATURE OF BETWEEN 1300 AND 1500*C., MIXING SAID COMBUSTION GAS WITH A MIXTURE OA NAPHTHA AND SUPERHEATED STEAM IN A CRACKING FURNACE TO CRACK THE NAPHTHA, THE NAPHTHA AND SUPERHEATED STEAM BEING ADDED TO THE COMBUSTION GAS IN A QUANTITY AND A PRESSURE SUCH THAT THE TEMPERATURE OF THE THUS OBTAINED GAS MIXTURE IS BETWEEN 700 AND 800*C., ADIABATICALLY EXPANDING THE LATTER GAS MIXTURE IN A TURBINE TO DRIVE THE SAME WHILE RAPIDLY COOLING THE GAS MIXTURE TO PREVENT POLYMERIZATION THEREOF, COOLING AND THEREAFTER SEPARATING THE CRACKED CONSTITUENTS OF THE NAPHTHA FROM THE GAS MIXTURE AFTER THE LATTER HAS BEEN DISCHARGED FROM THE TURBINE, AND DRIVING SAID COMPRESSOR BY SAID TURBINE.