Furnace, fluid feed component, fluid reforming system and method of reforming a fluid

A fluid feed component comprising:

• an upper end arranged to be fixed to a vessel for holding a body of liquid;
• a lower end arranged to be provided below an intended level of the body of liquid in the vessel;
• a fluid inlet at the lower end, for introducing a fluid into the vessel below the level of the body of liquid in the vessel so as to cause the fluid to interact with the liquid and to migrate therethrough;
• and
• a liquid circulation passage extending from the upper end towards the lower end, having a weir which is operatively locatable at a predefined vertical height from a bottom of the vessel so as to form the intended level of the body of liquid, and a port which is located remote from the weir and in fluid communication with the fluid inlet so as to enable the liquid to flow over the weir through the liquid circulation passage and through the port,
• wherein the fluid feed component is operable as a fluid reforming component and arranged to cause the fluid to break down into one or more of its constituent elements.