IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0088297
(1998-06-01)
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발명자
/ 주소 |
- Derbyshire Francis J.
- Jagtoyen Marit
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| 출원인 / 주소 |
- University of Kentucky Research Foundation
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
34 인용 특허 :
13 |
초록
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A process is described for the manufacture of activated carbon in the form of a powder, as granules or as extrudates. The process includes treating a biomass feedstock, such as woods, coconut shells, fruit pits, peats, lignites and all ranks of coal with a processing agent and an activation agent. T
A process is described for the manufacture of activated carbon in the form of a powder, as granules or as extrudates. The process includes treating a biomass feedstock, such as woods, coconut shells, fruit pits, peats, lignites and all ranks of coal with a processing agent and an activation agent. The processing agent may be a natural or synthetic monomer, oligomer, polymer or mixtures thereof capable of interacting or co-polymerizing with the biomass feedstock. The activation agent may be, for example, phosphoric acid, zinc chloride or mixtures thereof. A high surface area, high hardness extruded activated carbon may be produced by this process. The activated carbon is generally characterized by a BET surface area between 600-2500 m.sup.2 /g, a mesopore surface area between 80-900 m.sup.2 /g and for extruded or granular carbons, a Takeda hardness of between 10-50%.
대표청구항
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[ What is claimed is:] [1.] A process for the manufacture of activated carbon comprising:reacting a biomass feedstock with a processing agent in the presence of an activation agent wherein said biomass feedstock is selected from the group consisting of wood, nut shell, husk, fruit pit, peat, lignite
[ What is claimed is:] [1.] A process for the manufacture of activated carbon comprising:reacting a biomass feedstock with a processing agent in the presence of an activation agent wherein said biomass feedstock is selected from the group consisting of wood, nut shell, husk, fruit pit, peat, lignite, subbituminous coal, mixtures thereof, said processing agent is selected from the group consisting of furfrryl acetate, furfuryl alcohol, adipic acid, 1,4,5,8-naphthalene tetracarboxylic acid hydrate, quinoline, 2-hydroxy quinoline, 2,3-dihydroxy pyridine, 2-hydroxydibenzofuran, 2,6-pyridinedicarboxylic acid, terepthalic acid, resorcinol, o-cresol, benzoic acid, benzenetetracarboxylic acid, humic acid, dibasic acid and mixtures thereof and said activation agent is selected from the group consisting of phosphoric acid, metal chlorides, inorganic acids, sodium phosphates, bases and mixtures thereof;heating the biomass feedstock in the presence of the processing and activation agents to a temperature of at least 350.degree. C. for a time period sufficient to produce a chemically activated carbon material from the biomass feedstock;leaching the activated carbon material with a leaching reagent; anddrying the activated carbon material.
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