| 摘要 |
1,254,364. Making combustible gas. CHEMICAL CONSTRUCTION CORP. 20 Nov., 1969 [26 Nov., 1968], No. 56955/69. Heading C5E. An apparatus for reforming hydrocarbons e.g. natural gas or naphtha, with steam and air, e.g. to make ammonia synthesis gas, comprises a heated primary catalytic steam reformer, a vertical secondary catalytic reformer and a refractory-lined chamber juxtaposed with the primary reformer and the lower portion of the secondary reformer, and having an air inlet. Partially reformed gas is reacted with air in the chamber and passes to the lower portion of the secondary reformer. The primary reformer may comprise a vertical tubular reformer with a horizontal gas collecting manifold at the bottom connected by a horizontal pipe with the chamber. The air inlet comprises a coaxial pipe in the gas pipe, a conical baffle and surrounding sleeve at the exit deflecting the air into the annular gas stream at the entrance to the chamber. The outlet from the chamber leads to centrally apertured refractory members supported on refractory bricks and surmounted by staggered refractory bricks which support a bed of catalyst on a grid. A boiler tube is mounted above the bed in the secondary reformer. |
