Abstract: A reciprocating piston generator assembly that uses a low-concentration methane as a form of fuel comprises: a lean methane engine; a generator assembly; a fine water mist transmission system; a refrigerating dehydrator; an electric butterfly valve; a pressure regulator; a fuel-air mixer; a TEM controller; a heat load sensor; a combustion chamber for the lean methane engine; an air filter; and a speed governing butterfly valve, wherein the fine water mist transmission system is attached sequentially with the refrigerating dehydrator, electric butterfly valve and low-concentration methane engine; and the pressure regulator, fuel-air mixer, air filter, speed governing butterfly valve, heat load sensors and combustion chambers are installed in the methane engine; that the TEM controller is connected to the fuel-air mixer and heat load sensor; and the generator is connected to the low-concentration methane engine.

Abstract: A reciprocating piston generator assembly that uses a low-concentration methane as a form of fuel comprises: a lean methane engine; a generator assembly; a fine water mist transmission system; a refrigerating dehydrator; an electric butterfly valve; a pressure regulator; a fuel-air mixer; a TEM controller; a heat load sensor; a combustion chamber for the lean methane engine; an air filter; and a speed governing butterfly valve, wherein the fine water mist transmission system is attached sequentially with the refrigerating dehydrator, electric butterfly valve and low-concentration methane engine; and the pressure regulator, fuel-air mixer, air filter, speed governing butterfly valve, heat load sensors and combustion chambers are installed in the methane engine; that the TEM controller is connected to the fuel-air mixer and heat load sensor; and the generator is connected to the low-concentration methane engine.

Abstract: A method and an abatement device for destroying the low concentration coalmine methane is disclosed. Low concentration coalmine methane can be destroyed automatically by passing through the device described in the following process: (A) Heating the oxidization bed electrically till its temperature rises up to at least 800° C.; (B) Passing the airflow that contains low concentration coalmine methane into the oxidization bed, where the methane is oxidized quickly, releasing thermal energy; (C) Reserving of the thermal energy generated to maintain the reactions continuously; (D) Discharging of waste gas from the oxidization bed after oxidizing reaction; (E) Reversing airflow direction and passing the low concentration coalmine methane from the opposite direction into the oxidization bed, where methane is oxidized and releasing the thermal energy; and (F) Reserving and outputting excess thermal energy. These steps from (B), (C), (D), (E) and (F) are repeated.