The present technology is generally directed to systems and methods for optimizing the burn profiles for coke ovens, such as horizontal heat recovery ovens. In various embodiments the burn profile is at least partially optimized by controlling air distribution in the coke oven. In some embodiments, the air distribution is controlled according to temperature readings in the coke oven. In particular embodiments, the system monitors the crown temperature of the coke oven. After the crown reaches a particular temperature range the flow of volatile matter is transferred to the sole flue to increase sole flue temperatures throughout the coking cycle. Embodiments of the present technology include an air distribution system having a plurality of crown air inlets positioned above the oven floor.

An integrated system is provided for producing deasphalted oil, high quality petroleum green coke and liquid coker products. An enhanced solvent deasphalting system, is used to treat the feedstock to reduce the level of asphaltenes, N, S and metal contaminants and produce a deasphalted oil with reduced contaminants. A coking system is integrated to produce liquid and gas coking unit products, and petroleum green coke.

An integrated system is provided for producing deasphalted oil, high quality petroleum green coke and liquid coker products. An enhanced solvent deasphalting system, is used to treat the feedstock to reduce the level of asphaltenes, N, S and metal contaminants and produce a deasphalted oil with reduced contaminants. A coking system is integrated to produce liquid and gas coking unit products, and petroleum green coke.

An atmospheric pressure water ion generating device is arranged in a triphase organic matter pyrolysis system which includes a steam generating device and a pyrolysis and carbonization reaction device. The water ion generating device includes a connecting pipe connected with the steam generating device, and having an interior that is penetrated, a heating tube having a first end connected with the connecting pipe and having an interior provided with an air channel, and a spraying head connected with a second end of the heating tube, and having an interior that is tapered. The air channel has a surface provided with an alloy catalyst layer. The spraying head is provided with a nozzle which is connected with the pyrolysis and carbonization reaction device.

An atmospheric pressure water ion generating device is arranged in a triphase organic matter pyrolysis system which includes a steam generating device and a pyrolysis and carbonization reaction device. The water ion generating device includes a connecting pipe connected with the steam generating device, and having an interior that is penetrated, a heating tube having a first end connected with the connecting pipe and having an interior provided with an air channel, and a spraying head connected with a second end of the heating tube, and having an interior that is tapered. The air channel has a surface provided with an alloy catalyst layer. The spraying head is provided with a nozzle which is connected with the pyrolysis and carbonization reaction device.

A method of preparing graphene from coal can include thermally processing raw coal and, after the coal has been at least partially cooled from thermal processing, forming reduced graphene oxide from the coal.

A method of preparing graphene from coal can include thermally processing raw coal and, after the coal has been at least partially cooled from thermal processing, forming reduced graphene oxide from the coal.

Examples of a flexible pyrolysis system are provided that include at least one reaction chamber capable of pyrolyzing a combination of coal in a supercritical carbon dioxide (CO.sub.2) atmosphere. The system includes a recuperating and condensing circuit that removes dissolved pyrolysis products from the supercritical CO.sub.2 atmosphere and then recovers CO.sub.2 for reuse in the reaction chamber. The recuperating and condensing circuit includes multiple stages of recuperators and collectors that can be independently controlled in order to selectively fractionate the pyrolysis products. In addition, the pyrolysis reaction may be controlled to alter the pyrolysis products generated.

Examples of a flexible pyrolysis system are provided that include at least one reaction chamber capable of pyrolyzing a combination of coal in a supercritical carbon dioxide (CO.sub.2) atmosphere. The system includes a recuperating and condensing circuit that removes dissolved pyrolysis products from the supercritical CO.sub.2 atmosphere and then recovers CO.sub.2 for reuse in the reaction chamber. The recuperating and condensing circuit includes multiple stages of recuperators and collectors that can be independently controlled in order to selectively fractionate the pyrolysis products. In addition, the pyrolysis reaction may be controlled to alter the pyrolysis products generated.

Provided here are systems and methods of production of needle coke by processing an aromatic rejects stream containing long chain alkyl monoaromatics and bridged diaromatics through a delayed coking process. Various other embodiments may be disclosed and claimed.