Patent ID: 6136279
Filing Date: 2000-10-24
Classification: B01J,C01B,F23C

Abstract:
A reformer furnace comprising:an outer shell with an opening in its bottom;at least one burner surrounded by a wall spaced apart from the burner, said wall being arranged within the outer shell and spaced apart from inner surface of the shell, said wall being open at the top and having at least one opening at the bottom thereby defining a reformer chamber between the wall and inner surface of the shell and a combustion chamber within the wall surrounding the burner; andone or more catalytic reformer tubes, each tube comprising an outer tube for containing a catalyst with a closed outlet end and an open ended inner tube, the reformer tubes being arranged vertically within the reformer chamber, so that a hot flue gas from the burner circulates with an upward flow in the combustion chamber and downward flow in the reformer chamber and a portion of the hot flue gas recirculates from the reformer chamber to the combustion chamber.