Control of mercury emissions from solid fuel combustion
2 Assignments
0 Petitions
Accused Products
Abstract
A system 26 for removing elemental mercury or mercury compounds handles carbonaceous sorbent 28 of a starter batch stored in a silo 30 in an agglomerated state. The sorbent 28 is fed by a feeder 32 to a separation device 34, which comminutes (if necessary) and de-agglomerates the sorbent particles 28 to their primary size distribution. This device 34 may be a particle-particle separator or a jet mill, where compressed air or high-pressure steam is the energy source. The de-agglomerated sorbent 28 of a contact batch created from the starter batch is conveyed by an airsteam for injection at a contact location 66 in a flue gas duct whereat carbonaceous sorbent of the contact batch adsorbs mercury from the flue gas.
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Citations
38 Claims
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1-20. -20. (cancelled)
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21. A method for removing mercury from the products of fuel conversion comprising:
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disposing carbonaceous sorbent into contact with the products of fuel conversion at a contact location having a temperature between 400°
F. and 1100°
F., whereupon the carbonaceous sorbent adsorbs mercury; and
removing the carbonaceous sorbent having mercury adsorbed thereon. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification