NOVELTY - The removal system of siloxane compound from sewage gas has sewage gas refiner (6) which extracts siloxane compound, process-liquid separating apparatus (8) which separates process liquid into ethanol (6a) and siloxane compound, process-liquid supply line (7) which introduces the process liquid to process-liquid separating apparatus, and solvent supply line (9) which introduces separated ethanol to the refiner.    USE - For removing siloxane compound from sewage gas (claimed) used as fuel for generators such as gas turbine and gas engine.    ADVANTAGE - The siloxane compound removal system is economical, efficiently removes siloxane compound with suppressed usage amount of ethanol and restrains environmental impact.    DETAILED DESCRIPTION - The removal system of siloxane compound from sewage gas has sewage gas refiner which extracts siloxane compound in solvent by carrying out gas-liquid contact of the sewage gas containing siloxane compound with ethanol as a solvent, process-liquid separating apparatus which separates the process liquid used by the sewage-gas refiner into ethanol and siloxane compound, process-liquid supply line which introduces a portion or whole of the process liquid used by the refiner to process-liquid separating apparatus, and solvent supply line which introduces separated ethanol to the refiner. The solvent is circulated between the sewage-gas refiner and process-liquid separation apparatus, through the process-liquid supply line and solvent supply line.    An INDEPENDENT CLAIM is included for removal of siloxane compound contained in sewage gas, which involves introducing sewage gas containing siloxane compound to the sewage gas refiner, extracting siloxane compound using ethanol as a solvent, introducing and separating the process liquid into ethanol and a siloxane compound in process liquid separation apparatus, carrying out process liquid separation partition process of portion of ethanol, and circulating the processed ethanol between sewage gas purification process and process liquid separation process.    DESCRIPTION OF DRAWING(S) - The figure shows the siloxane compound removal system. (Drawing includes non-English language text).    sewage gas refiner (6)    ethanol (6a)    storage tank (6b)    diffuser (6c)    process liquid supply line (7)    process-liquid separation apparatus (8)    solvent supply line (9)    purified gas supply line (10)