Apparatus for the catalytic conversion of hydrocarbons

Claim 1

APPARATUS OF THE CHARACTER DESCRIBED COMPRISING A REGENERATING CHAMBER, A SERIES OF SPACED, INCLINED, SUBSTANTIALLY PARALLEL, PERFORATED PLATES EXTENDING DOWNWARDLY FROM ONE WALL OF THE CHAMBER TO JUST SHORT OF THE OPPOSITE WALL AT THEIR LOWER ENDS, A FURTHER PLATE WHICH IS IMPERFORATE POSITIONED BENEATH AND SUBSTANTIALLY PARALLEL TO THE SERIES OF PERFORATED PLATES EXTENDING UPWARDLY FROM AN OPPOSITE WALL TO JUST SHORT OF THE FIRST WALL, A FURTHER PLATE EXTIONED PARALLEL TO AND BETWEEN THE LOWERMOST PERFORATED PLATE AND THE IMPERFORATE PLATE, THE FURTHER PLATE BEING PERFORATED OVER ITS LOWER PORTION AND IMPERFORATE OVER ITS UPPER PORTION AND SUBSTANTIALLY COEXTENSIVE AT ITS LOWER ENDS WITH THE PERFORATED PLATES AND EXTENDING AT ITS IMPERFORATE END BEYOND THE UPPER END OF THE IMPERFORATE PLATE BUT SHORT OF THE ADJACENT WALL, AN INLET FOR INTRODUCING SOLID GRANULAR CATALYST TO THE UPPER END OF THE UPPER PERFORATED PLATE, AN OUTLET FOR WITHDRAWING CATALYST FROM THE LOWER END OF THE IMPERFORATE PLATE AND MEANS FOR PASSING AIR THROUGH THE CHAMBER.