Assertion: phosphoric acid | /r/HasProperty | treated raw material
Facets:
value: to produce an activated carbon
type: PURPOSE
value: via a gas activation process
type: MANNER
Source sentences:
text: In accordance with another embodiment, the method of producing an activated carbon recited initially, further comprising, after direct-activating the phosphoric acid treated raw material, washing the activated carbon with a solution comprising a second acid.
text: In accordance with another embodiment, the activated carbon for the removal of an impurity, the activated carbon prepared by the process recited initially, further comprising, after direct-activating the phosphoric acid treated raw material, washing the activated carbon with a solution comprising a second acid.
text: In accordance with another embodiment, a method for removing an impurity from a flue gas stream comprises injecting an activated carbon into a flue gas stream upstream from a collection device, the flue gas stream comprising at least one impurity suitable for adsorption, allowing sufficient residence time for adsorption of the at least one impurity onto the activated carbon, collecting in the collection device the activated carbon after the activated carbon has adsorbed the at least one impurity, and removing the activated carbon and the absorbed at least one impurity from the flue gas stream, wherein the activated carbon is prepared by a process comprising selecting a raw material for direct-activation, applying a solution of at least 50% phosphoric acid by weight at a ratio of from 0.01 pounds to 0.3 pounds of phosphoric acid solution per pound to the raw material selected for direct activation to produce a phosphoric acid treated raw material, and direct-activating the phosphoric acid treated raw material via a gas activation process to produce an activated carbon.