关键词: 甲烷, 活性炭, 失活, 再生

Abstract: Thermo-catalytic decomposition of methane is an effective way to produce hydrogen-rich gas. Activated carbon as an economic and efficient catalyst had been widely studied. In this paper，the mechanism of methane decomposition on activated carbon is elaborated. The activated carbon as catalysts is discussed in terms of surface physical and chemical properties，reaction conditions，pre-treatment method，different heating methods，and different forms of reactor. The origin of deactivation and the methods of regeneration are discussed in detail. The preparation and pre-treatment of activated carbon，the control of reaction conditions，and the rapidly deactivation of activated carbon shall be main focus for activated carbon in future application.

Key words: methane, activated carbon, deactivation, regeneration