NOVELTY - A gas-separation apparatus has a module comprising a porous-ceramic hollow fiber membrane, a hollow fiber membrane edge portion (1) connected with a to-be-processed gas introduction portion, and other hollow fiber membrane edge portion (1') connected with a separation remaining gas exhaust port, and accommodated in an airtight container. The separated gas is taken out from the collection opening of the airtight container. The porous-ceramic hollow fiber membrane is in the shape turned up by spiral elongate, and is accommodated in the airtight container.    USE - Gas-separation apparatus is used for manufacturing hydrogen and oxygen, and liquefying natural gas in solid oxide fuel cell.    ADVANTAGE - The gas-separation apparatus has excellent workability. The damage of hydrogen gas separation hollow fiber membrane during high-temperature process is suppressed.    DETAILED DESCRIPTION - A gas-separation apparatus has a module comprising a porous-ceramic hollow fiber membrane, a hollow fiber membrane edge portion connected with a to-be-processed gas introduction portion, and accommodated in an airtight container, and other hollow fiber membrane edge portion connected with a separation remaining gas exhaust port, and accommodated in an airtight container. The separated gas is taken out from the collection opening of the airtight container. The porous-ceramic hollow fiber membrane is in the shape turned up by spiral elongate, and is accommodated in the airtight container. The porous-ceramic hollow fiber membrane is obtained by baking ceramic hollow fiber membrane precursor by dry-and-wet spinning of a stock solution which carried out high filling of ceramic powder in an organic solvent of a polymeric material, forming film and temporarily fixing in the shape which is to be turned up elongate to spiral on the jig. An INDEPENDENT CLAIM is included for porous-ceramic hollow fiber membrane.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of the porous-ceramic hollow fiber membrane.    End portions of porous-ceramic hollow fiber membrane (1,1')    Portion turned up by spiral of porous-ceramic hollow fiber membrane elongate (3)