초록 ▼

A method and apparatus are described for reforming hydrocarbons, particularly natural gas, to form hydrogen wherein the reformation is performed in a reactor in which the heat of reformed products are utilized to reform the hydrocarbons in a catalytic tube reformer. The reformer can be used in conju

A method and apparatus are described for reforming hydrocarbons, particularly natural gas, to form hydrogen wherein the reformation is performed in a reactor in which the heat of reformed products are utilized to reform the hydrocarbons in a catalytic tube reformer. The reformer can be used in conjunction with a traditional steam reformer to produce hydrogen with less energy consumption, lower steam production and less capital cost.

대표청구항 ▼

A method for reforming hydrocarbons in a plural stage reformation wherein a first reformation of a first reactant stream occurs in a first reforming zone heated by combustion furnace gases and a second reformation of a second reactant stream occurs in a second reforming zone which second reformation

A method for reforming hydrocarbons in a plural stage reformation wherein a first reformation of a first reactant stream occurs in a first reforming zone heated by combustion furnace gases and a second reformation of a second reactant stream occurs in a second reforming zone which second reformation comprises the steps of: (a) introducing said second reactant stream of hydrocarbons and steam at elevated temperature and pressure into said second reforming zone; (b) passing said second reactant stream through a plurality of reaction tubes while contacting said second reactant stream with reforming catalyst packed in said tubes; (c) introducing a reformed reaction product at elevated temperature and pressure into said second reforming zone but outside said tubes at a temperature substantially above the temperature of said second reactant stream at the latter\s introduction into said second reforming zone; (d) mixing the reformed reaction product with similar product produced from said second reactant stream passing through said reaction tubes; (e) heating said second reactant stream to reaction temperature and reforming it in said reaction tubes by heat exchange of said mixed reaction product with said second reactant stream, and (f) removing a mixed reaction product of reformed fluid from said second reforming zone.