Method for the catalytic decomposition of hydrocarbons by steam

Claim 1

A METHOD FOR THE CATALYTIC DECOMPOSITION OF HEAVY HYDROCARBONS BY STEAMS CONSISTING IN PREHEATING A PRIMARY STEAM OF HEAVY HYDDROCARBON ADMIXED WITH STEAM TO A TEMPERATURE OF ABOVE 400TO 450* C. AND LOWER THAN THE THRESHOLD OF PYROLYSIS LEADING TO THE FORMATION OF FREE CARBON, SUBDIVIDING SAID HEATED STREAM INTO A PLURALITY OF SUCCESSIVE ELEMENTARY FRACTION, THE FIRST OF WHICH CONTAINS LESS THAN ABOUT ONE THIRD OF THE TOTAL THROUGHPUT OF THE PRIMARY STREAM, HEATING A SECONDARY GASIFORM STREAM CONTAINING STREAM TO A TEMPERATURE SUBSTANTIALLY ABOVE THE THERESHOLD OF THERMOL HYDROLYSIS AT ABOVE 800 TO 850* C., MAINTAINING SAID STREAM PERMANENLY ABOVE SAID THRESHOLD TEMPERATURE, INTRODUCING THE DIFFERENT FRACTIONS OF THE FIRST STREAM INTO CORESPONDING SUCCESSIVE POINTS A THE SECONDARY STREAM TO OBTAIN AT EACH OF SAID POINTS A HOMOGENEOUS REACTION MIXTURE, THE TEMPERATURE OF WHICH IS STILL HIGHER THAN SAID SUCCESSIVE PORTIONS OF THE SECONDARY AND CAUSING SAID SUCCESSIVE PORTIONS OF THE SECONDARY STREAM ADMIXED WITH THE PRIMARY STREAM FRACTIONS TO REACT WITH A ZIRCON-CONTAINING NICKEL-FREE CATAYLST TO PRODUCE THE CRACKING OF THE HEAVY HYDROCARBONS.

Claim 2

A METHOD FOR THE CATALYTIC DECOMPOSITION OF HEAVY HYDROCARBONS BY STEAMS CONSISTING IN PREHEATING A PRIMARY STEAM OF HEAVY HYDDROCARBON ADMIXED WITH STEAM TO A TEMPERATURE OF ABOVE 400TO 450* C. AND LOWER THAN THE THRESHOLD OF PYROLYSIS LEADING TO THE FORMATION OF FREE CARBON, SUBDIVIDING SAID HEATED STREAM INTO A PLURALITY OF SUCCESSIVE ELEMENTARY FRACTION, THE FIRST OF WHICH CONTAINS LESS THAN ABOUT ONE THIRD OF THE TOTAL THROUGHPUT OF THE PRIMARY STREAM, HEATING A SECONDARY GASIFORM STREAM CONTAINING STREAM TO A TEMPERATURE SUBSTANTIALLY ABOVE THE THERESHOLD OF THERMOL HYDROLYSIS AT ABOVE 800 TO 850* C., MAINTAINING SAID STREAM PERMANENLY ABOVE SAID THRESHOLD TEMPERATURE, INTRODUCING THE DIFFERENT FRACTIONS OF THE FIRST STREAM INTO CORESPONDING SUCCESSIVE POINTS A THE SECONDARY STREAM TO OBTAIN AT EACH OF SAID POINTS A HOMOGENEOUS REACTION MIXTURE, THE TEMPERATURE OF WHICH IS STILL HIGHER THAN SAID SUCCESSIVE PORTIONS OF THE SECONDARY AND CAUSING SAID SUCCESSIVE PORTIONS OF THE SECONDARY STREAM ADMIXED WITH THE PRIMARY STREAM FRACTIONS TO REACT WITH A ZIRCON-CONTAINING NICKEL-FREE CATAYLST TO PRODUCE THE CRACKING OF THE HEAVY HYDROCARBONS.