Method for production of activated carbon
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United States of America Patent
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Jun 20, 2017
Grant Date -
May 11, 2017
app pub date -
Nov 10, 2015
filing date -
Nov 10, 2015
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Abstract
A method for producing an activated carbon material comprises the steps of producing a hot flue gas stream from a combustion process in a first reactor; routing a first part of said flue gas stream to a second reactor that is substantially vertical; routing a second part of said flue gas stream to eventual venting; injecting and suspending a carbonaceous starting material into said second reactor to devolatilize and activate the carbonaceous starting material to produce an activated carbon material; separating the activated carbon material in a separating device; and routing the gas stream from said separating step to the first reactor for incineration of the volatile contents released from said injecting and suspending step. The activated carbon material is suited for the removal of vapor phase air toxics, such as mercury, from the flue gas of a coal fired power plant. An apparatus for producing the activated carbon material for the same purpose is also described.
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