Fluid hydroforming

Claim 1

IN A PROCESS FOR HYDROFORMING HYDROCARBONS IN CONTACT WITH FINELY DIVIDED HYDROFORMING CATALYST PARTICLES COMPRISING A GROUP VI METAL OXIDE UPON A SUPPORT IN ACCORDANCE WITH THE FLUIDIZED SOLIDS TECHNIQUE AT TEMPERATURES OF ABOUT 850-925* F., AT PRESSURE BETWEEN ABOUT 50 AND 500 LBS. PER SQ. INCH AND AT CATALYST-TO-OIL WEIGHT RATIOS OF ABOUT 0.5 TO 1.5, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY WITHDRAWING A STREAM OF CATALYST PARTICLES FROM THE HYDROFORMING REACTION ZONE, REGENERATING THE WITHDRAW CATALYST PARTICLES BY BURNING CARBONACEOUS DEPOSITS THEREFROM AT TEMPERATURES OF 1050*1200* F., WITHDRAWING A SECOND STREAM OF CATALYST FROM THE REACTION ZONE, MIXING THIS SECOND STREAM OF REACTOR CATALYST WITH HOT, FRESHLY REGENERATED CATALYST PARTICLES IN SUFFICIENT AMOUNT TO LOWER THE TEMPERATURE OF THE LATTER TO BELOW 1050* F., THEREAFTER TREATING THE SAID MIXTURE OF FRESHLY REGENERATED CATALYST AND REACTOR CATALYST AT SAID LOWER TEMPERATURE WITH A HYDROGEN-RICH GAS AND RECYCLING THE HYDROGEN TREATED MIXTURE OF REGENERATED AND REACTOR CATALYST PARTICLES AT TEMPERATURES ABOVE AVERAGE REACTION ZONE TEMPERATURES TO THE REACTION ZONE.