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Petroleum coke containing 5.85 wt% S was used to prepare a brominated sorbent to capture Hg from flue gas. HgBr and Hg(Br)Br are the primary chemical forms chemisorbed on the surface of this new carbon-based sorbent, and bind on the carbon site nearest to the S atom.

A waste byproduct of petroleum coke was obtained as a precursor modified with bromine for elemental mercury capture from simulated flue gas on a bench scale fixed-bed reactor.