Method for producing activated carbon
AssigneeIPR Holding AS
InventorsFengliu Lou, Svein Kvernstuen
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Abstract
A method is for producing activated carbon. The method includes: a) mixing a carbonaceous precursor with chemically activating agents to obtain a feedstock mixture; b) producing activated carbon by heating the feedstock mixture under the atmosphere of a physically activating gas; and c) performing suitable post-activation treatment of the produced activated carbon. Step a) includes in sequence the sub-steps of: i. addition of a first chemically activating agent to obtain an impregnated precursor; and ii. addition of a second chemically activating agent to obtain the feedstock mixture. An activated carbon species is obtainable by the method. The activated carbon species may thus be tuned to have a pore size distribution optimized for use in a carbon electrode.
Claims14
A method for producing activated carbon, said method comprising the steps of:
- a. mixing a carbonaceous precursor with chemically activating agents to obtain a feedstock mixture;
- b. producing activated carbon by heating the feedstock mixture under the atmosphere of a physically activating gas;
- and
- c. performing suitable post-activation treatment of the produced activated carbon, wherein step a) comprises in sequence the sub-steps of:
- i. addition of a first chemically activating agent to obtain an impregnated precursor;
- and
- ii. addition of a second chemically activating agent to obtain the feedstock mixture.
An activated carbon species formed by:
- a. mixing a carbonaceous precursor with chemically activating agents to obtain a feedstock mixture;
- b. producing activated carbon by heating the feedstock mixture under the atmosphere of a physically activating gas;
- and
- c. performing suitable post-activation treatment of the produced activated carbon, wherein step a) comprises in sequence the sub-steps of:
- i. addition of a first chemically activating agent to obtain an impregnated precursor;
- and
- ii. addition of a second chemically activating agent to obtain the feedstock mixture.
A carbon electrode comprising an activated carbon species formed by:
- a. mixing a carbonaceous precursor with chemically activating agents to obtain a feedstock mixture;
- b. producing activated carbon by heating the feedstock mixture under the atmosphere of a physically activating gas;
- and
- c. performing suitable post-activation treatment of the produced activated carbon, wherein step a) comprises in sequence the sub-steps of:
- i. addition of a first chemically activating agent to obtain an impregnated precursor;
- and
- ii. addition of a second chemically activating agent to obtain the feedstock mixture.
A supercapacitor comprising at least one carbon electrode formed by:
- a. mixing a carbonaceous precursor with chemically activating agents to obtain a feedstock mixture;
- b. producing activated carbon by heating the feedstock mixture under the atmosphere of a physically activating gas;
- and
- c. performing suitable post-activation treatment of the produced activated carbon, wherein step a) comprises in sequence the sub-steps of:
- i. addition of a first chemically activating agent to obtain an impregnated precursor;
- and
- ii. addition of a second chemically activating agent to obtain the feedstock mixture.
Dependencies are inferred from the claim text.