Open AccessHYDROFLUORIC ACID SCRUBBER SYSTEMS
Author(s) -
Panesko Jv,
Merritt Hd
Publication year - 2011
Language(s) - English
Resource type - Reports
DOI - 10.2172/1016165
Subject(s) - scrubber , hydrogen fluoride , hydrofluoric acid , chemistry , wet scrubber , potassium hydroxide , hydroxide , fluoride , nitric acid , aluminium , nitrate , hydrogen , data scrubbing , volume (thermodynamics) , waste management , inorganic chemistry , organic chemistry , engineering , physics , quantum mechanics
Each year over a million gallons of water are used to scrub hydrogen fluoride (HP) vapors from waste off-gas streams. Use of other potential scrubber solutions such as potassium hydroxide (KOH), aluminum nitrate nonahydrate (ANN), and monobasic aluminum nitrate (monoban) would result in significant volume reductions. A laboratory study was initiated to (1) demonstrate the effectiveness of these scrubber solutions to sorb HF, (2) determine if unexpected reactions occurred at flowsheet conditions, and (3) determine the consequences of deviation from flowsheet conditions. Caustic or aluminum scrubber solutions remove hydrogen fluoride from off-gas streams. Solids which appear with aluminum could be avoided by heating the scrubber solution