Title:
RECIRCULATION CYCLONES FOR DEDUSTING AND DRY GAS CLEANING
Document Type and Number:
WIPO Patent Application WO2001041934
Kind Code:
A9
Abstract:
Recirculation cyclones for dedusting and dry gas cleaning - comprising a reverse-flow cyclone collector (a, b, H1, D1, h, Db, De1, s1) and a straight-through cyclone concentrator (De1, H2, D2; De2, s2, Dv), located in series and with recirculation - characterised by the collector being located upstream from the concentrator and by a recirculation line (Dv), that recirculates a fraction of the flue gases from the concentrator to the collector, by means of a fan, ejector or venturi. Dedusting and dry gas cleaning methods, characterised by making the flue gases pass through such a device. Utilisation of those methods and device to dedusting exhaust gases from diesel combustion or to dedusting and dry gas cleaning acid gases like HCl, HF, SO2 and/or NOx by an injection of a solid sorbent. The efficiency is always larger than that of a reverse flow cyclone alone, with the same geometry and size as the collector, and than that of recirculation systems with the concentrator upstream the collector, with comparable geometries and sizes.
More Like This:
| JPS52138758 | CLASSIFICATION SYSTEM OF PULVERIZED MATERIAL |
| JPS60501995 | [Title of the Invention] A liquid separating method and a device |
| WO/1994/013387 | A CYCLONE SEPARATOR |
Inventors:
RIBERA SALCEDO ROMUALDO LUIS (PT)
Application Number:
PCT/PT2000/000013
Publication Date:
September 12, 2002
Filing Date:
December 13, 2000
Export Citation:
Assignee:
RIBERA SALCEDO ROMUALDO LUIS (PT)
International Classes:
B04C7/00; (IPC1-7): B04C7/00
Download PDF: