| 摘要 |
PURPOSE:To eliminate the slip of unreacted gas and to obtain a gas having a low content of N2, low sp.gr. and a high calorific value by allowing <=6C hydrocarbons to react with an oxygen-contg. gas and steam in the presence of a specified catalyst. CONSTITUTION:The <=6C hydrocarbons are vaporized and superheated in a raw material preheater E, and supplied through a line 1 to a reactor A packed with a catalyst obtained by depositing NiO on a carrier consisting essentially of MgO and produced by a dipping process. Meanwhile, an oxygen-contg. gas supplied from a blower H is saturated with water in a saturation tower F and added with steam, and the gaseous mixtures are heat-exchanged with a gaseous reaction product in a superheater B and supplied to the reactor A from a line 3. The gaseous mixtures are preheated to >=350 deg.C and mixed at the inlet of a reforming catalyst bed packed in the reactor A, allowed to react with each other so that the temp. at the outlet of the catalyst bed is controlled to 500 to 700 deg.C. The waste heat of the reaction product is recovered in the superheater B, a waste heat boiler D and the preheater E, and the reaction product passes through a CO converter and is cleaned in a water-sealed scrubber G. |
