Removal of Hg, NO x , and SO x with using oxidants and staged gas/liquid contact
First Claim
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1. A method of scrubbing Hg compounds from a gas stream, comprising:
- a scrubbing operation, including;
contacting a gas stream containing Hg or Hg compounds and SOx compounds with a sorbent for removing at least a portion of said SOx, compounds present in said stream to provide a partially cleaned gas stream; and
contacting said partially cleaned gas stream with an oxidant or oxidant solution to oxidize and/or remove residual Hg or Hg compounds remaining in said stream.
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Abstract
A method of scrubbing mercury compounds and nitrogen oxides from a gas stream employing a scrubbing operation. The method involves the contact of the stream which contains mercury, SOx and NOx compounds with a sorbent to remove at least a portion of the latter compounds. This results in a partially cleaned stream. The method further involves contacting the latter stream with an oxidant to oxidize and remove substantially all residual nitrogen oxides, mercury and mercury compounds remaining in the stream.
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Citations
23 Claims
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1. A method of scrubbing Hg compounds from a gas stream, comprising:
- a scrubbing operation, including;
contacting a gas stream containing Hg or Hg compounds and SOx compounds with a sorbent for removing at least a portion of said SOx, compounds present in said stream to provide a partially cleaned gas stream; and contacting said partially cleaned gas stream with an oxidant or oxidant solution to oxidize and/or remove residual Hg or Hg compounds remaining in said stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- a scrubbing operation, including;
Specification