Abstract: In the process of transferring coke from a coke oven chamber in a battery of coke ovens to a quenching car, the coke is quenched by a water spray from above. The resulting steam is collected in a hood located above and movable with the quenching car and is either exhausted from the hood and conveyed to a condenser or is condensed in the hood with the condensate being collected, cooled and recirculated to provide the water for the quenching and condensing sprays. The apparatus and method of this invention provides for transferring and quenching the coke without emitting harmful gases and dust to the atmosphere.

Abstract: Superheated steam is continuously made to flow through the housing of a device which conveys coal from a bunker to the charging holes of coke ovens. While no charging takes place, the steam is vented from the housing and condensed. When charging does take place, the steam enters the coke oven with the coal, is then discharged from the coke oven, and thereupon condensed. The pressure of the steam in the housing may be greater than ambient atmospheric pressure and/or the pressure of the coking gas in the oven, to reliably prevent the entry of the air and/or the gas into the housing and thus to avoid the formation of dangerous gas mixtures therein.

Abstract: Flue gas discharged from a recuperator or regenerator of a coke oven battery has the steam thereof removed by means of a direct or indirect cooling and condensation operation. After the steam is removed from the flue gas it is then passed through a coke dry cooling plant in direct contact with hot coke therein to form dry cooled coke while simultaneously increasing the temperature of the flue gas. The flue gas is then passed through a coal preheating plant to directly contact and dry and preheat moist coking coal contained therein. The entire system is open, such that a given quantity of the flue gas passes only once through the system. When the temperature of the flue gas as received from a coke oven battery is extremely high, then the flue gas may be subjected to a partial cooling operation prior to the cooling and condensation operation.

Abstract: A heat carrier gas is passed through a coke dry cooling plant in direct contact with hot coke therein to form dry cooled coke while simultaneously increasing the temperature of the heat carrier gas. The heat carrier gas is then passed through a coal preheating plant to directly contact and dry and preheat moist coking coal contained therein. The entire system is open, such that a given quantity of the heat carrier gas passes only once through the dry cooling plant and the coal drying and preheating plant. The heat carrier gas may be a flue gas which is passed directly to the coke dry cooling plant without any preliminary pretreatment, and preferably is a flue gas which is supplied directly from a regenerator or recuperator of a coke oven battery. Alternatively, the heat carrier gas may be in the form of a fuel gas which is inert with respect to the hot coke, for example a waste gas or stack gas supplied from an adjacent metallurgical installation, such as a steel mill.

Abstract: In the process of transferring coke from a coke oven chamber in a battery of coke ovens to a quenching car, the coke is quenched by a water spray from above. The resulting steam is collected in a hood located above and movable with the quenching car and is either exhausted from the hood and conveyed to a condenser or is condensed in the hood with the condensate being collected, cooled and recirculated to provide the water for the quenching and condensing sprays. The apparatus and method of this invention provides for transferring and quenching the coke without emitting harmful gases and dust to the atmosphere.

Abstract: An apparatus for the dry cooling of coke is disclosed including a vertical cooling chamber having an open bottom, a gas distribution manifold disposed in the bottom of the cooling chamber and a pair of discharge openings for the continuous withdrawal of the cooled coke from the bottom of the chamber. The cooling gas manifold includes upwardly sloping walls which intersect at an apex located generally centrally of the bottom of the cooling chamber. Gas discharge openings extend through these walls and are so disposed as to make cooling gas available across the entire cross-section of the cooling chamber. Individual, closed gas chambers communicate with groups of the gas discharge openings and the flow of gas to each chamber is individually regulated.

Abstract: This invention is directed to a process for making coke and recovering the heat therefrom for preheating the firing gas to the coke oven. The process involves the use of the coke oven firing gas to extract the sensible heat from the hot coke from the coking oven to both preheat the firing gas for the coke oven and cool the hot coke. Significant economies are achieved in the two-fold function of coke production and heat recovery in accordance with the method disclosed.

Abstract: An arrangement for drying and preheating coking gas has a transport tube for transporting coal in a stream of a carrier gas, and a feed conduit for feeding hot gas into the transport tube. The feed conduit is movable relative to the tube so as to vary the conditions of feeding the hot gas into the transport tube. For this purpose, feed conduit may be connected with the transport tube by a ball-and-socket joint, so that it can be movable relative to the transport tube in circumferential and axial directions of the latter. The feed conduit may be composed by a plurality of conduit members located in the transport tube and one in the other, and movable relative to transport tube in the axial direction of the latter.

Abstract: Hot coke oven gas is subjected, immediately after the discharge thereof from coke ovens, and without any preliminary cooling operation, to partial oxidation and cracking with an oxygen-containing gas, thereby forming a hot cracked gas rich in carbon monoxide and hydrogen. The hot coke oven gas may be subjected to a desulfurization operation prior to the partial oxidation and cracking. Alternatively, the hot cracked gas may be subjected to a desulfurization operation after the partial oxidation and cracking. When the coke ovens are part of an overall metallurgical installation which includes an air separation and dissociation plant for obtaining substantially pure oxygen, the oxygen-containing gas employed in the partial oxidation and cracking may comprise oxygen enriched gas which is taken from an intermediate stage of the air separation and dissociation plant.

Abstract: Coke oven gas is subjected, immediately after the discharge thereof from coke ovens, and without any preliminary cooling operation or any purification operation other than desulfurization, to a catalytic cracking operation to form a hot cracked gas which is rich in hydrogen and carbon monoxide. The catalytic cracking reaction is carried out in the presence of a hydrogen-containing and/or CO.sub.2 -containing gas, with a steam reforming catalyst.

Abstract: Method for charging a coke oven chamber. Where the chamber is charged through a single charging hole with a stream of flowable preheated particulate coal at a flow rate of between substantially 8-20 tons per minute. The coal flows sufficiently in the chamber to assure filling of the chamber to substantially 100% of the volumetric capacity of the same. Due to the flowability of the preheated coal the charge is self-leveling.

Abstract: As hot crude coke oven gas is conveyed from coke ovens to a position of utilization, condensation of higher hydrocarbons from the coke oven gas is prevented by increasing the temperature of the coke oven gas to a temperature such that higher hydrocarbons are prevented from condensing therefrom. This increase in temperature may be achieved by injecting oxygen-containing gas into the hot crude coke oven gas, to thereby produce a partial combustion of the coke oven gas. Alternatively, when the coke oven gas is being conveyed to a thermal cracking reactor wherein the coke oven gas is thermally cracked to form a cracked gas, the temperature of the coke oven gas may be increased by passing the coke oven gas through a heat exchanger in indirect heat exchange relation with the cracked gas.