▎ 摘　　要

NOVELTY - Manufacture of hydrocarbon involves (i) preparing a container, and (ii) forming a carbon-metal alloy by solid-phase mixing a carbon-based material and a metal catalyst in the container under a hydrogen gas atmosphere. USE - Manufacture of hydrocarbon e.g. methane (all claimed). ADVANTAGE - The method provides hydrocarbon exhibiting high reaction rate, selectivity, and stability even at low temperatures.