| 摘要 |
PURPOSE:To improve the thermal efficiency of the reactor by disposing several heat exchangers in the reactor and using the waste heat of combustion waste gas after heating the reforming reactor tube to preheat the air for combustion and the source material gas, and using the sensible heat of the product hydrogen to preheat the sweep gas. CONSTITUTION:The source gas 1 containing (oxygen-contg.) hydrocarbon and steam is preheated in a preheating heat exchanger 22 and then introduced to a reforming reactor 2. At same time, air 6 and methane 4A are supplied to a burner 11 attached to the center part of the reforming reactor 2 to be burned with a combustion catalyst 3 and the heat required for the reforming reaction is supplied to the reactor tube 2. Thus, the source gas 1 is reformed into hydrogen-contg. gas and then hydrogen is selectively recovered by a hydrogen separation means 14. The waste heat of the combustion waste gas 12 after heating the reactor tube 2 is supplied to the heat exchangers 22 and 23 and used to preheat the source gas 1 and the air 17 for combustion. Further, the sensible heat of the product hydrogen gas is supplied to the heat exchanger 24 and effectively used to preheat the sweep gas 9. |
