| 主权项 |
1. Apparatus for removing ammonia from a gas stream, comprising:
a primary scrubber having a gas inlet, a gas outlet, and a slurry atomizer, the gas inlet of said primary scrubber being operatively connected to the gas stream having ammonia contained therein; a primary slurry feed system operatively connected to the slurry atomizer of said primary scrubber, said primary slurry feed system feeding to the slurry atomizer a primary slurry composition comprising molybdic acid at a pH level; a secondary scrubber having a gas inlet, a gas outlet, and a slurry atomizer, the gas inlet of said secondary scrubber being operatively connected to the gas outlet of said primary scrubber; a secondary slurry feed system operatively connected to the slurry atomizer of the secondary scrubber, said secondary slurry feed system feeding to the slurry atomizer a secondary slurry composition comprising molybdic acid at pH level, the pH level of the secondary slurry composition being lower than the pH level of the primary slurry composition, said apparatus atomizing the primary slurry composition in the primary scrubber, the atomized primary slurry composition absorbing quantities of ammonia contained in the gas stream to produce a partially processed gas stream, the partially processed gas stream exiting said primary scrubber via the gas outlet and entering said secondary scrubber via the gas inlet, said apparatus atomizing the secondary slurry composition in the secondary scrubber, the atomized secondary slurry absorbing additional quantities of ammonia contained in the partially processed gas stream to produce a processed gas stream, the processed gas stream exiting said secondary scrubber via the gas outlet. |
