There is provided a process and system for producing carbon fiber products. The process can involve deasphalting a heavy hydrocarbon feedstock, which can contain native asphaltenes, to produce a solid asphaltene particulate material, which can be further treated to produce the carbon fiber products. In some implementations, the solid asphaltene particulate material can be extruded in the presence of a polymer. In some implementations, the solid asphaltene particulate material can be chemically treated with a chemical agent including a Lewis acid, an oxidizing agent and/or a reducing agent before extrusion. In some implementations, the process can further produce activated carbon fibers.

There is provided a process and system for producing carbon fiber products. The process can involve deasphalting a heavy hydrocarbon feedstock, which can contain native asphaltenes, to produce a solid asphaltene particulate material, which can be further treated to produce the carbon fiber products. In some implementations, the solid asphaltene particulate material can be extruded in the presence of a polymer. In some implementations, the solid asphaltene particulate material can be chemically treated with a chemical agent including a Lewis acid, an oxidizing agent and/or a reducing agent before extrusion. In some implementations, the process can further produce activated carbon fibers.

The invention relates to a method for the production of activated carbon, in particular particulate activated carbon, having an increased mesopore and/or macropore volume fraction, preferably having an increased mesopore volume fraction.

The invention relates to a method for the production of activated carbon, in particular particulate activated carbon, having an increased mesopore and/or macropore volume fraction, preferably having an increased mesopore volume fraction.

Methods and systems for producing activated carbon from a particulate coal feedstock that involve one or more of the introduction of a buffering gas, a moisture spray, a finest carbon fraction as a fuel, and certain gas ratios. Different methods and system configurations allow the production of activated carbon or other heat-treated carbons while concurrently avoiding adverse reaction conditions.

Methods and systems for producing activated carbon from a particulate coal feedstock that involve one or more of the introduction of a buffering gas, a moisture spray, a finest carbon fraction as a fuel, and certain gas ratios. Different methods and system configurations allow the production of activated carbon or other heat-treated carbons while concurrently avoiding adverse reaction conditions.

The invention relates to a burner pipe for a rotary kiln for producing activated carbon and to a rotary kiln comprising said burner pipe. The invention further relates to the use of the burner pipe or rotary kiln for producing activated carbon.

Provided are methods, systems, and compositions for producing activated carbon from lignin residues produced from cellulosic or lignocellulosic biomass after hydrolysis of saccharides. The activated carbon is low in ash and sulfur, high in oxygen content and iodine number.

The present disclosure provides biorefining systems for co-producing activated carbon along with primary products. A host plant converts a feedstock comprising biomass into primary products and carbon-containing co-products; a modular reactor system pyrolyzes and activates the co-products, to generate activated carbon and pyrolysis off-gas; and an oxidation unit oxidizes the pyrolysis off-gas, generating CO.sub.2, H.sub.2O, and energy. The energy is recycled and utilized in the host plant, and the CO.sub.2 and H.sub.2O may be recycled to the reactor system as an activation agent. The host plant may be a saw mill, a pulp and paper plant, a corn wet or dry mill, a sugar production facility, or a food or beverage plant, for example. In some embodiments, the activated carbon is utilized at the host plant to purify one or more primary products, to purify water, to treat a liquid waste stream, and/or to treat a vapor waste stream.

The present disclosure provides biorefining systems for co-producing activated carbon along with primary products. A host plant converts a feedstock comprising biomass into primary products and carbon-containing co-products; a modular reactor system pyrolyzes and activates the co-products, to generate activated carbon and pyrolysis off-gas; and an oxidation unit oxidizes the pyrolysis off-gas, generating CO.sub.2, H.sub.2O, and energy. The energy is recycled and utilized in the host plant, and the CO.sub.2 and H.sub.2O may be recycled to the reactor system as an activation agent. The host plant may be a saw mill, a pulp and paper plant, a corn wet or dry mill, a sugar production facility, or a food or beverage plant, for example. In some embodiments, the activated carbon is utilized at the host plant to purify one or more primary products, to purify water, to treat a liquid waste stream, and/or to treat a vapor waste stream.