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US 11,298,654 B2Granted
Nitrogen oxide absorption slurry and a preparation and use method thereof
AssigneeLiwei Huang
InventorLiwei Huang
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AssigneeLiwei Huang
InventorLiwei Huang
Estimating the term…
A nitrogen oxide absorption slurry and its preparation and use method for the removal of nitric oxide in gas streams, belonging to the technical field of air pollution control and related environmental protection, is characterized in that the absorption slurry contains one or more compounds of anhydrous ferric chloride, ferric chloride monohydrate, ferric chloride dihydrate and the complex of ferric chloride and chloride ions. The absorption slurry reacts with the nitric oxide in gas stream at a certain temperature, so that the nitric oxide in the gas stream is absorbed by the slurry, thereby achieving the purpose of gas purification. And the absorbent can be recycled after regeneration.
A nitrogen oxide absorption slurry for removing nitric oxide gas from gas streams, wherein said absorption slurry contains any one or two and more compounds of anhydrous ferric chloride, ferric chloride monohydrate, ferric chloride dihydrate, and a complex of ferric chloride and hydrochloric acid, and the mass ratio of water to ferric chloride in the absorption slurry is from 0.005 to 0.55.
Dependencies are inferred from the claim text.