reformer

1. (historical, Christianity) One who was involved in the Reformation.Examples: "[…] for I long to ſee a larke without a creaſt, and would travaile farre to diſcoover a reformer without a fault, […]"historical

2. (chemical engineering, fuel cells) A device which converts hydrocarbons into a hydrogen-rich mixture of gases.Examples: "The fuel reformer works somewhat like catalytic converters in cars. In the gasoline reformer, vaporized gasoline is mixed with steam and air before traveling through a cylinder packed with the new Argonne catalyst. The result is a hydrogen-rich gas that is further processed in subsequent chemical steps and is then fed to the fuel cell."

3. (petrochemistry) A device used to convert petroleum refinery naphthas, typically having low octane ratings, into high-octane liquid products called reformates.Examples: "Deisohexanizer bottoms are routed to the continuous reformer, where the octane of the stream is upgraded chiefly by conversion of naphthenes and paraffins to high octane aromatic compounds."