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SO3 resistant sorbents for removing mercury from flue gas

Patent ·
OSTI ID:1531857
Surface functionalized sorbent particles for vapor-phase mercury removal, especially in the presence of SO3 in, for example, flue gas. The sorbent surface is modified to increase the SO3 resistance of vapor-phase mercury sorbents. The mercury removal efficiency is immune to the presence of SO3, which is not the case with conventional activated carbon as well as brominated activated carbons. The sorbent is based on carbon particles with a metal oxide coating on the surface. The thin metal oxide layer acts as an amenable surface to introduce functional groups. The metal oxide coated carbon was further modified with amine molecules, to increase its resistance towards SO3 poisoning.
Research Organization:
NEI Corp., Somerset, NJ (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-07ER84714
Assignee:
NEI Corporation (Somerset, NJ)
Patent Number(s):
8,481,455
Application Number:
13/033,482
OSTI ID:
1531857
Country of Publication:
United States
Language:
English

References (1)

Enhanced mercury ion adsorption by amine-modified activated carbon journal July 2009

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