Systems and methods for efficient on-line pigging of a coker furnace without interruption of the delayed coking process, which will save time and money during the delayed coking process. This system can be retrofitted to existing coker furnaces.

A method for forming mesophase pitch can include applying a stimulus to a first amount of coal tar to form a first amount of mesophase pitch. The stimulus can include one or more of an electromagnetic field (“EMF”) or a magnetic field. The method can further include evaluating a characteristic of the first amount of mesophase pitch, changing a parameter of the stimulus in response to evaluating the characteristic of the first amount of mesophase pitch, and applying the stimulus exhibiting the changed parameters to a second amount of coal tar to form mesophase pitch.

A control system for automatic operation of a coker, the control system. The control system includes a drum feeder operable to modulate a feed of oil into a coke drum of the coker. The control system further includes a controller with a processing circuit. The processing circuit obtains a target coke rate indicating a target rate at which to accumulate coke within the coke drum. The processing circuit further uses a neural network model to generate a target coker feed rate predicted to result in the coke accumulating within the coke drum at the target coke rate. The target coker feed rate indicates a target rate at which to feed the oil into the coke drum. The processing circuit further operates the drum feeder using the target coker feed rate to modulate the feed of oil into the coke drum.

This disclosure relates to a shut-off valve, in particular a pipe-bridge slide valve, for a coking drum for the production of coke, having at least one pipe socket which has a first end for connection to the coking drum and a second end on which a slider is arranged for opening and closing the coking drum, wherein the pipe socket has a supply connection for filling the coking drum with a medium and a diaphragm which is arranged between the supply connection and the first end of the pipe socket and can be moved into a filling position and into an emptying position, wherein, in the filling position, a diaphragm opening is arranged in the region of the central longitudinal axis of the pipe socket for introducing the medium centrally into the coking drum, and, in the emptying position, the diaphragm opening has a larger passage area than in the filling position.

The present invention provides a method for production of anode grade coke by processing crude oil feed stock in a DCU. The method comprising separation of low boiling light molecular weight components from heavier molecules and processing the same in Delayed Coker Unit after mixing with aromatic rich stream to overcome the operational issue envisaged due to processing of paraffin containing crude feed. The coke so obtained was calcined to produce an improved quality coke having lesser impurities (Sulfur <3 wt %) and better crystallinity.

This disclosure provides a method of making a high-fixed-carbon material comprising pyrolyzing biomass to generate intermediate solids and a pyrolysis vapor; condensing the pyrolysis vapor to generate pyrolysis liquid; blending the pyrolysis liquid with the intermediate solids, to generate a mixture; and further pyrolyzing the mixture to generate a high-fixed-carbon material. A process can comprise: pyrolyzing a biomass-comprising feedstock in a first pyrolysis reactor to generate a first biogenic reagent and a first pyrolysis vapor; introducing the first pyrolysis vapor to a condensing system to generate a condenser liquid; contacting the first biogenic reagent with the condenser liquid, thereby generating an intermediate material; further pyrolyzing the intermediate material in a second pyrolysis reactor to generate a second biogenic reagent and a second pyrolysis vapor; and recovering the second biogenic reagent as a high-yield biocarbon composition. The process can further comprise pelletizing the intermediate material. Many process and system configurations are disclosed.

The present invention relates to automated waste recovering system and method which is not limited to a specific type of waste only. The system comprises a reactor for pyrolysis, a condensing unit connected to a water-cooled chiller to obtain liquid phase products and non-condensable gas, a gas treatment unit, a series of gas filtration unit to obtain clean gas, a storage and a control unit. The system also comprises a gas mixer unit to mix the non-condensable gas with hydrogen to obtain hydrocarbon rich gas, an artificial fuel condensing unit for condensing the hydrocarbon rich gas to obtain artificial fuel and water, which subsequently separated in a phase separator unit. The present invention provides a means to achieve constant yield by controlling conditions in the reactor and further increase the yield by producing artificial fuel.

Systems and methods are provided for co-processing of biomass oil with mineral coker feeds in a coking environment. The coking can correspond to any convenient type of coking, such as delayed coking or fluidized coking. The biomass oil can correspond to biomass oil with a molar ratio of oxygen to carbon of 0.24 or less on a dry basis. Such types of biomass oil can be formed from pyrolysis methods such as hydrothermal pyrolysis, and are in contrast to biomass oils formed from pyrolysis methods such as fast pyrolysis. By using a biomass oil with a molar ratio of oxygen to carbon of 0.24 or less, improved yields of light coker gas oil can be achieved in conjunction with a reduction in the yield of heavy coker gas oil.

Systems and methods for efficient on-line pigging of a coker furnace without interruption of the delayed coking process, which will save time and money during the delayed coking process. This system can be retrofitted to existing coker furnaces.

Systems and methods for processing waste plastics are provided. One method includes mixing, heating and compacting a supply of the waste plastic based feedstock having an appreciable amount of halide compounds or heteroatoms from one or more sources of contamination; providing an amendment comprising alkaline earth oxides and/or hydroxides, oxides of iron, and/or oxides of aluminum to be mixed, heated and compacted with the waste plastic based feedstock to form a densified melt of plastic material including the amendment; and pyrolyzing the densified melt of plastic material including the amendment within a pyrolysis reactor. Another method includes pyrolyzing a supply of the waste plastic feedstock within a pyrolysis reactor to generate a hydrocarbon gas stream and a solids residue stream; condensing out a tars product from the hydrocarbon gas stream output from the pyrolysis reactor with a quenching apparatus; and pyrolyzing the tars product within a supplemental pyrolysis reactor.