Ozone Purification Process.

摘要

An ozone-oxygen gas stream produced by passing oxygen into an ozone generator (A) is introduced into a membrane separation unit (B) containing an ozone-permeable membrane (6). Ozone-enriched gas passes through the membrane (6) and is recovered or it contacts a liquid or gas stream which contains ozone-reactive substances, thereby oxidizing the substances. The oxygen-enriched gas stream produced on the feed side (8) of the membrane (6) by permeation of ozone through the membrane (6) is recycled to the ozone generator (A). Prior to being recycled, the oxygen-enriched stream may be purified to remove gaseous impurities which permeate through the membrane (6) from the liquid or gas stream being treated.