SYSTEM AND METHOD FOR METHANE CONCENTRATION CONTROL OF BIOGAS

摘要

PURPOSE: A system and a method for controlling the methane concentration of biogas are provided to control the methane concentration of the biogas to satisfy the allowable range of the methane concentration in the fuel standard of the biogas. CONSTITUTION: A gas holder(10) stores biogas. A high energy gaseous fuel storing tank(60) stores high energy gaseous fuel. A combustor(80) combusts the biogas and generates exhaust gas. An exhaust gas storing tank(140) stores the exhaust gas. A low methane concentration biogas storing tank(70) stores low methane concentration biogas. A biogas mixing chamber(50) mixes the biogas and the high energy gaseous fuel. A gas component analyzer(5) measures the methane concentration of the biogas. A methane concentration controlling unit(150) is further prepared.