Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents

Ramsay Chang (Inventor), Scott (Shiaoguo) Chen (Inventor), Massoud Rostam-Abadi (Inventor), Sharon Sjostrom (Inventor)

Research output: Patent

Abstract

A process for removing vapor phase contaminants from a gas stream includes the step of adding a raw carbonaceous starting material into a gas stream having an activation temperature sufficient to convert the raw carbonaceous starting material into an activated material in-situ. The activated material then adsorbs the vapor phase contaminants, and the activation material containing the vapor phase contaminants is removed from the gas stream using a particulate collection device. The process is particularly suited for the removal of vapor phase air toxics, such as mercury, from the flue gas of a combustion process. An apparatus for the removal of vapor phase contaminants from a gas stream is also described.
Original languageEnglish (US)
U.S. patent number6451094
Filing date2/26/99
StatePublished - Sep 17 2002

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