| 摘要 |
<p>A process for improving the gas separation efficiency of a bundle or module (1) of hollow gas separation fibers (2) by selectively sealing defective fibers without sealing good fibers through which a gas A passes significantly more readily than a gas B. At the beginning of this process the same atmosphere containing A and B is in the interior and at exterior surfaces of said fibers. A curable sealant is applied to a first open end (8) of the fibers, the opposite end (9) of the fibers is blocked, and the partial pressure of A at the exterior fiber surfaces (7) is increased. The resulting pressure build-up inside the non-defective fibers prevents them from being penetrated significantly by the sealant. When the tip of the fibers is cut cleanly away, the good fibers are open but the defective fibers are plugged with sealant.</p> |
