| 摘要 |
PURPOSE: A separating method of carbon from hydrocarbon-based gas is provided to directly crack the hydrocarbon-based gas by using a hydrogen separating membrane module with a hydrogen separating membrane and a porous support. CONSTITUTION: A separating method of carbon from hydrocarbon-based gas includes the following steps: a hydrogen separating membrane module is prepared by forming a hydrogen separating membrane(130) with a hydrogen ion conductivity and a catalytic layer(140) at a porous support(110); the temperature and the pressure of hydrocarbon-based gas are adjusted such that the temperature become in a range between 300 and 900 deg C and the pressure become higher than atmospheric pressure; the hydrocarbon-based gas is represented by chemical formula, C_xH_y, x is the real number more than or equal to 1, and y is the real number more than or equal to 2; the hydrocarbon-based gas is introduced into the hydrogen separating membrane module; the hydrocarbon-based gas passes through the catalytic layer such that the cracking to carbon and hydrogen of the hydrocarbon-based gas is accelerated; the hydrogen is cracked into hydrogen ions and electrons through the hydrogen separating membrane; the hydrogen ions and the electrons are transferred to the porous support; the hydrogen ions and the electrons are re-combined to become hydrogen gas through the porous support; and the hydrogen separating membrane module is cooled.
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