A method for producing briquettes made of a waste material includes provisioning of at least one metal and at least one organic material. The waste material is mechanically prepared in a single or multiple stages and at least one first fraction of the waste material is separated. A briquette mixture containing the at least one first fraction is produced, wherein the at least one first fraction has a calorific value of 0 MJ/kg to 30 MJ/kg. A calorific value of the briquette mixture is adjusted by varying at least the first fraction. The briquette mixture is introduced into a briquetting device and pressed into briquettes. Briquettes with a calorific value of 5 MJ/kg to 30 MJ/kg and with a maximum copper content of 0.1 wt % to 20 wt % are produced.

This alternative fuel is a reclaimed waste product which has a solid, particulate consistency at ambient temperature. The fuel comprises a composite of petroleum pitch and a powder coating. The powder coating penetrates into the surface of the pitch. The powder coating is recycled ash, pulverized coal, or pulverized petroleum coke.

A charcoal replacement solid energy fuel comprises wood particles substantially fully impregnated with a melt-flowable, natural, monolignol biopolymer derived from biomass which can be further processed into various shapes of briquettes, pellets and other shapes for grilling, heating/cooking, green coal energy and other applications. The material and its method of making are environmentally friendly, carbon neutral, and lower cost alternative to charcoal or traditional coal. The melt-flowable monolignol based material impregnated into the wood imparts significant water resistance, UV resistance, antimicrobial functionality, faster lighting and higher BTU/lb energy without the need to add carbonize wood or coal. The impregnated wood granules or particles can then be compressed, without the need for additional binder, into various homogenous charcoal briquette replacements, pellets, or shapes for grilling or green coal energy fuel.

A briquette for use as a mineral charge in a cupola furnace for the production of mineral wool fibres is produced by combining: a) recycled waste mineral wool selected from i) waste mineral wool comprising uncured sugar containing binder, ii) waste mineral wool comprising cured binder, iii) waste mineral wool without binder and iv) combination thereof, b) cement, and c) additional sugar(s) to form a mouldable mixture and moulding and curing the mouldable mixture to form the briquette.

A biofuel product having constituents selected from the group including fat, oil and/or grease components. A container is formed of a biodegradable material having a multiplicity of openings of a size and shape adapted for allowing the fat, oil and/or grease components to pass through the openings to an interior area of the container. An absorbent capture material is positioned in the container and holds a quantity of the fat, oil and/or grease. The container, capture material and fat, oil and/or grease collectively include the biofuel product.

A biofuel product having constituents selected from the group including fat, oil and/or grease components. A container is formed of a biodegradable material having a multiplicity of openings of a size and shape adapted for allowing the fat, oil and/or grease components to pass through the openings to an interior area of the container. An absorbent capture material is positioned in the container and holds a quantity of the fat, oil and/or grease. The container, capture material and fat, oil and/or grease collectively include the biofuel product.

A biofuel product having constituents selected from the group including fat, oil and/or grease components. A container is formed of a biodegradable material having a multiplicity of openings of a size and shape adapted for allowing the fat, oil and/or grease components to pass through the openings to an interior area of the container. An absorbent capture material is positioned in the container and holds a quantity of the fat, oil and/or grease. The container, capture material and fat, oil and/or grease collectively include the biofuel product.

A process for upgrading of a coal product is provided. The process comprising the steps of: (i) providing a purified coal composition, wherein the composition is in the form of solid particles, and wherein at least about 90% by volume (% vol) of the solid particles are no greater than about 500 μm in diameter; and (ii) combining the purified coal composition with a solid coal feedstock, in order to create a combined solid-solid blend upgraded coal product. Further a process for preparation of a purified coal product is provided. The process comprising the steps of: obtaining a starting material that comprises coal; subjecting the starting material to at least one fine grinding stage so as to reduce the starting material to a particulate composition in which substantially all of the particles are no more than 500 microns (μm) in diameter; exposing the particulate composition to at least one froth flotation stage so as to separate hydrocarbonaceous material comprised within the particulate composition from mineral matter, wherein during the at least one froth flotation stage the hydrocarbonaceous material is associated with froth produced and separated from the at least one froth flotation stage; washing the froth separated from the at least one froth flotation stage with water to release the hydrocarbonaceous material; and subjecting the hydrocarbonaceous material to at least one dewatering stage so as to obtain a particulate purified coal product that has an ash content of less than 12% m, a water content of less than 25% m and wherein the particles comprised within the particulate purified coal product have a d90 of less than 00 μm. Products, such as pelletized or briquetted coal, comprising purified coal material obtainable via the described processes are also provided.

A flavor or aroma charcoal material, such as charcoal briquets, which is formulated to include a flavor or aroma component. The charcoal material may include a smoldering agent (e.g., limestone), wood particles (e.g., sawdust), a binder, and the flavor or aroma component (herbs and/or spices). The flavor or aroma charcoal material may not be configured as a fuel charcoal material, for example, it may be substantially void of char and/or coal. In an embodiment, the flavor or aroma charcoal material may be provided as part of a blend of different charcoal materials that includes both flavor or aroma briquets in combination with fuel briquets (e.g., which fuel briquets include char and/or coal, while the flavor briquets do not). The flavor briquets provide enhanced aroma and/or flavor to the grilling experience.

A system and method for torrefying a combination of biomass and biochar colloidal dispersion is provided.