METHOD AND DEVICE FOR DEOXYDIZING DIGESTION GAS

• Main Authors: MATSUMOTO KATSUO, KUMANO SUSUMU, KOYAMA TADASHI, MURAKOSHI KOJI, TOYOHISA SHIRO
• Format: Patent
• Language: English
• Published: 21.10.2010
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a method and device for deoxydizing digestion gas, on purifying the digestion gas and removing the oxygen remaining in the purified gas, without requiring a high temperature, capable of determining the time for exchanging a catalyst, and obtaining a predetermined required gas by suppressing sulfur-based impurities such as hydrogen sulfide, etc., and oxygen to predetermined amounts or less. SOLUTION: This device for deoxydizing the digestion gas is equipped with an absorption column 3 for purifying methane gas from the digestion gas, a water electrolysis device 6 for adding hydrogen to the purified gas, a catalyst column 8 filled with the catalyst 7 receiving the purified gas added with hydrogen for converting the remaining oxygen in the purified gas added with the hydrogen to water for removal and thermometers 40, 42, 41a, b, c for measuring each of the temperatures in the three places of the front and rear of the catalyst column 8 and at the inside of the catalyst column 8. COPYRIGHT: (C)2011,JPO&INPIT