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U.S. Department of Energy
Office of Scientific and Technical Information

Method and apparatus for regulating the NH/sub 3/ content in scrubbing liquid used in a gas scrubbing process

Patent ·
OSTI ID:6364316
A process for regulating the NH/sub 3/ content in an organic liquid that acts as a physical scrubbing agent and is used in a procedure for absorbing sour gases from gaseous mixtures. To ensure undisturbed and reliable carrying out of the scrubbing process, an ammonia-precipitating precipitant is added to the scrubbing agent and the precipitate is then separated from the scrubbing agent. Preferred precipitants include sulphuric acid and phosphuric acid. The ammonia salts are effective fertilizers.
Assignee:
Linde AG (Germany, Federal Republic Of)
Patent Number(s):
US 4522638
OSTI ID:
6364316
Country of Publication:
United States
Language:
English