Abstract: According to the invention the heating system for regenerative coke oven batteries that can be heated with rich gas and/or lean gas or mixed gas is provided comprising vertical flues cooperating in pairs, each vertical flue being connected to a regenerator for preheating the air and, in the case of lean gas operation, for preheating the lean gas or mixed gas. High and low combustion stages, as well as structure defining an internal flue gas return at levels above a flue base are provided. Discharge openings are provided at at least three levels for supplying each flue. A base discharge opening is provided at the flue base directly connected to regenerators. Hollow communicating channels are defined for connecting the regenerators to discharge openings located above the flue base. The hollow communicating channels are preferably formed in each communicating wall connected to a discharge opening leading only to one adjacent flue.

Abstract: Coking system, wherein the coking blends particularly based on hard coal, are fed batchwise to a reactor (1), which is heated indirectly by heat recovery in regenerators (I, II) or recuperators, whereby the reactor is built as a high-capacity coking reactor (100), several high-capacity coking reactors are combined to form a reactor block and the high-capacity coking reactors are built as mutually independent modules, whereby each module can be operated or optionally replaced independently of the neighboring modules, with little or no impairment of the operation of the neighboring modules. The individual reactors are independently operatable in terms of statics and heat supply. The regenerators, or recuperators (I, II, R, R') can be arranged laterally or underneath the reactor chamber. Neighboring reactors can have a common intermediate wall (2). The reactor chambers have a width of at least 0.7 m, a height of at least 8.5 m and a length of at least 18 m.

Abstract: A shaft cooler for dry quenching of coke includes an inner masonry ring that is an independent structure suspended on the top edge of the outer masonry of the shaft cooler. The weight of the inner masonry ring is carried by stays which bear on the top edge of the outer masonry. The tubular stays are disposed in one embodiment inside the masonry ring and in another embodiment outside the masonry ring. The tubular stays are connected to ring mains for conducting a coolant medium. When the tubular stays are disposed outside the masonry ring, parallel tubes are interconnected along their entire length by webs to form a closed steel ring. Ring tubes are welded to the top and bottom ends to serve as a heat exchanger and are connected to the evaporator section of a waste-heat boiler of the shaft cooler. Flue-gas passages are formed at the bottom edge of the masonry ring by radially, spaced-apart webs.

Abstract: In a coke dry shaft cooler having a smaller receiving chamber, and therebelow, a larger cooling chamber, a wear-resistant inward projection is provided at the transition between the two chambers to overcome difficulties caused by uneven particle distribution within the cooler.

Abstract: Coke is dry cooled in a shaft-like cooler by gases conveyed through the coke. The cooler comprises a top antechamber below a charging opening, a cooling chamber under the antechamber and having a gas inlet and a coke outlet at the bottom end. Between the antechamber and the cooling chamber, there is a cylindrical wall having a gas inlet. The cooling chamber is divided by radial walls which abut a central masonry core and divide the chamber into three shaft-like chambers to insure uniform descending of the coke. A prop is placed at the center of each component shaft for deflecting the descending coke from a central region. Cooling gas is supplied through a pipe having a downwardly-directed opening below a central masonry core. Additional cooling gas is supplied by an annular chamber surrounding a cone at a coke outlet of the cooling chamber.

Abstract: A solid carbonaceous material principally coal is subjected to a solvent extraction by[a] introducing a hydrogen donor-solvent and the carbonaceous particulate material into a generally vertically directed extraction zone at an elevated pressure;[b] imparting a continuous generally upwards directed flow to said solvent, the solvent being at a temperature above the softening temperature of the said particles and the pressure being higher than the vapor pressure of the solvent at said temperature, the flow velocity of the solvent being sufficient to cause fluidization of said particles;[c] withdrawing the solvent together with the formed extract continuously at the top of the extraction zone while preventing the entrainment of solid particles;[d] effecting the separation of the extract and solvent outside said extraction zone;[e] removing the remaining solid particles together with residual extract-free or extract-lean solvent from the extraction zone separate from the withdrawal at [c]; and[f] separating the s