Reformed gas production method and reformed gas production apparatus

摘要

The present invention relates to a reformed gas production apparatus that includes a reaction chamber containing a reforming catalyst, a supply route to the reaction chamber, a reformed gas conduction route from the reaction chamber, and a reaction chamber temperature control means that controls a temperature of the reaction chamber. The supply route supplies a fluid that includes a fuel containing a hydrocarbon having at least two carbon atoms, at least one of steam and a carbon dioxide-containing gas, and an oxygen-containing gas. The fuel can be a mixed fuel that includes a plurality of types of hydrocarbons that each have at least two carbon atoms. The reaction chamber temperature control means relates to the thermal decomposition index temperature of the fuel, which defines an upper limit temperature of the reforming reaction region.

主权项

1. A reformed gas production apparatus comprising:
a reaction chamber containing a reforming catalyst; a supply route connected to a fuel source that contains a plurality of types of hydrocarbons and configured to supply a fluid that includes a fuel containing a hydrocarbon having at least two carbon atoms, at least one of steam and a carbon dioxide-containing gas, and an oxygen-containing gas, to the reaction chamber; a reformed gas conduction route configured to conduct a reformed gas that is produced through a reforming reaction and that includes methane, hydrogen, and carbon monoxide, from the reaction chamber; and reaction chamber temperature control means programmed to control a temperature of the reaction chamber; wherein the fuel is a mixed fuel that contains a plurality of types of hydrocarbons each having at least two carbon atoms; and wherein the reaction chamber temperature control means is programmed to regard the thermal decomposition index temperature of the fuel, which is a value of the lowest thermal decomposition temperature of the plurality of types of hydrocarbons that make up the fuel, the thermal decomposition temperature being determined based on a gas type and a concentration of hydrocarbons having at least two carbon atoms that make up the fuel, as an upper limit temperature of the reforming reaction region, and in a case where the maximum temperature in the reforming reaction region exceeds the upper limit temperature, the reaction chamber temperature control means performs control to cool the reaction chamber.