Described herein are processes for preparation of a carbon foam material, the processes including the steps of heating in a microwave heating apparatus a mixture including a coal material and at least one additional agent. The additional agent can be a flux agent such a carbohydrate syrup, a secondary flux agent, a lignocellulosic waste material, a conductive carbon compound, a solvent, and combinations thereof. Also described are processes for calcining a carbon foam material in a furnace, a microwave heating apparatus, or an inductive field heater. The described calcining process can impart electrical conductivity and mechanical strength to carbon foams. Also described are carbon foam materials, calcined carbon foams, and composite materials. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Described herein are processes for preparation of a carbon foam material, the processes including the steps of heating in a microwave heating apparatus a mixture including a coal material and at least one additional agent. The additional agent can be a flux agent such a carbohydrate syrup, a secondary flux agent, a lignocellulosic waste material, a conductive carbon compound, a solvent, and combinations thereof. Also described are processes for calcining a carbon foam material in a furnace, a microwave heating apparatus, or an inductive field heater. The described calcining process can impart electrical conductivity and mechanical strength to carbon foams. Also described are carbon foam materials, calcined carbon foams, and composite materials. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A method of removing organic carbon and other contaminants from a water stream. The method comprises screening large solids from the stream. Pre-oxidation chemicals may then be added. A coagulant is fed into the stream. An activated carbon, preferably formed from lignite, is added by pumping a highly concentrated activated carbon slurry into the stream. The stream, including the activated carbon and coagulant, next flows into a clarifier, where the coagulant will flocculate and enmesh the activated carbon. The activated carbon adsorbs organic carbon and other contaminants, including bacteria, pharmacological agents, and hydrocarbons, as the stream flows through the clarifier. Eventually, the flocculate will agglomerate and settle out in the clarifier, where it, the enmeshed carbon, and the contaminants they contain may be removed. The stream's organic carbon content exiting the clarifier will be much reduced. Accordingly, less primary oxidizing agent will be needed to treat any remaining organic carbon.

Described herein are processes for preparation of a carbon foam material, the processes including the steps of heating in a microwave heating apparatus a mixture including a coal material and at least one additional agent. The additional agent can be a flux agent such a carbohydrate syrup, a secondary flux agent, a lignocellulosic waste material, a conductive carbon compound, a solvent, and combinations thereof. Also described are processes for calcining a carbon foam material in a furnace, a microwave heating apparatus, or an inductive field heater. The described calcining process can impart electrical conductivity and mechanical strength to carbon foams. Also described are carbon foam materials, calcined carbon foams, and composite materials. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Described herein are processes for preparation of a carbon foam material, the processes including the steps of heating in a microwave heating apparatus a mixture including a coal material and at least one additional agent. The additional agent can be a flux agent such a carbohydrate syrup, a secondary flux agent, a lignocellulosic waste material, a conductive carbon compound, a solvent, and combinations thereof. Also described are processes for calcining a carbon foam material in a furnace, a microwave heating apparatus, or an inductive field heater. The described calcining process can impart electrical conductivity and mechanical strength to carbon foams. Also described are carbon foam materials, calcined carbon foams, and composite materials. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A process for producing an adsorbent comprising activated carbon, wherein the process comprises a molding step of molding an adsorbent through a plurality of stages, and wherein the molding step comprises molding in a final stage performed by tableting.

A process for producing an adsorbent comprising activated carbon, wherein the process comprises a molding step of molding an adsorbent through a plurality of stages, and wherein the molding step comprises molding in a final stage performed by tableting.

Provided herein is a method for manufacturing activated carbon that providing a carbon material in a reactor, carbonizing the carbon material by a first heat-treating under an inert gas atmosphere, first activating the carbonized carbon material by a second heat-treating under an oxidizing gas atmosphere, and second activating the first activated material by a third heat-treating under a carbon dioxide atmosphere.

Provided herein is a method for manufacturing activated carbon that providing a carbon material in a reactor, carbonizing the carbon material by a first heat-treating under an inert gas atmosphere, first activating the carbonized carbon material by a second heat-treating under an oxidizing gas atmosphere, and second activating the first activated material by a third heat-treating under a carbon dioxide atmosphere.

A method for preparing a porous carbon material by using coal tar generated in a coke oven gas (COG) process is provided. The method includes: removing quinoline insoluble (QI) by mixing tetrahydrofuran (THF) with coal tar generated in a COG purification process; distilling coal tar by adding a phenolic resin to the QI-removed coal tar, and heating the same at a temperature of 100 C. to 330 C.; carbonizing the distilled coal tar by heating the same at 350 C. to 600 C.; mixing a carbide after the carbonization step and the coal tar, which has been distilled before the carbonization, and grinding/granulating the same; mixing the ground/granulated carbide and the coal tar, which has been distilled before the carbonization, with a pore forming agent, and heat treating the same at 300 C. to 500 C.; and forming pores by making the heat treated carbon material come into contact with water vapor at 700 C. to 1000 C.