The present invention relates to a coconut shell-derived modified activated carbon having a BET specific surface area of 1400 to 2000 m.sup.2/g, a value of hydrogen content/carbon content of 0.0015 to 0.0055, and intra-skeletal oxygen of 0.9 mass % or less.

The present invention relates to a coconut shell-derived modified activated carbon having a BET specific surface area of 1400 to 2000 m.sup.2/g, a value of hydrogen content/carbon content of 0.0015 to 0.0055, and intra-skeletal oxygen of 0.9 mass % or less.

A chemical vapor deposition method for fluorine-containing carbon materials preparation provided. The claimed method comprises treating of carbons with fluorocarbons or derivatives that passes at a moderate high temperature. The fluorine-containing carbon materials show hydrophobicity, high thermal stability and can be used as catalysts support, lithium battery anodes, and hydrophobic materials or as surface precursor. Surface fluorine characterized by intensive signal in the XPS spectrum, found in a range of 685-687 eV. Obtained fluoro-containing functionalities is stable at a temperature about 1000° C.

Processing algae includes liquefying algae to yield a mixture including biocrude oil, biochar, and an aqueous component, and treating the biochar to yield a nutrient composition including ammoniacal nitrogen and phosphate.

Processing algae includes liquefying algae to yield a mixture including biocrude oil, biochar, and an aqueous component, and treating the biochar to yield a nutrient composition including ammoniacal nitrogen and phosphate.

Continuous thermolysis of carbonaceous matter in a controlled temperature and steam environment to produce a low volatility char, with subsequent steam activation of the char under pressure producing activated carbon and pressurized syn-gas, all of which are carried out in a reactor system including one or more vessels. The syn-gas is enriched in hydrogen in a high temperature shift reactor and separated in a pressurized swing adsorber to provide a pressurized pure hydrogen stream and a low-pressure combustible tail gas. The tail gas and the volatiles from the thermolysis step are combusted to provide process steam and electric power. The electric power is used to supplement the thermal requirements of the process with the balance being exported.

Continuous thermolysis of carbonaceous matter in a controlled temperature and steam environment to produce a low volatility char, with subsequent steam activation of the char under pressure producing activated carbon and pressurized syn-gas, all of which are carried out in a reactor system including one or more vessels. The syn-gas is enriched in hydrogen in a high temperature shift reactor and separated in a pressurized swing adsorber to provide a pressurized pure hydrogen stream and a low-pressure combustible tail gas. The tail gas and the volatiles from the thermolysis step are combusted to provide process steam and electric power. The electric power is used to supplement the thermal requirements of the process with the balance being exported.

An object of the present invention is to provide a carbonaceous material from which an electrochemical device having a high initial electrostatic capacitance, an excellent effect of suppressing gas generation during charging and discharging, and excellent durability can be obtained, and a method for producing the carbonaceous material, an electrode active material for an electrochemical device containing the carbonaceous material, an electrode for an electrochemical device containing the electrode active material, and an electrochemical device. The present invention relates to a carbonaceous material having a BET specific surface area of 1550 to 2500 m.sup.2/g, a value of an oxygen content/hydrogen content per specific surface area of 1.00 to 2.10 mg/m.sup.2, and an electrical conductivity of 10 to 15 S/cm determined by powder resistance measurement at a load of 12 kN.

A process to transform spent cannabis biomass into activated carbon via a treatment involving a chemical activation process. The spent cannabis biomass is mixed with an activating agent and then subjected to a heat treatment. The spent cannabis biomass is heated in stages, the first to remove water and volatile components, and the second to reclaim leftover cannabinoids. During a third, higher temperature stage, the biomass is converted to activated carbon.

A process to transform spent cannabis biomass into activated carbon via a treatment involving a chemical activation process. The spent cannabis biomass is mixed with an activating agent and then subjected to a heat treatment. The spent cannabis biomass is heated in stages, the first to remove water and volatile components, and the second to reclaim leftover cannabinoids. During a third, higher temperature stage, the biomass is converted to activated carbon.