Abstract: The invention relates to a method for producing biogas from lignocellulose-containing biomass, preferably from straw, and to a plant for carrying out said method.

Abstract: The invention relates to a method for producing biogas from lignocellulose-containing biomass, preferably from straw, and to a plant for carrying out said method.

Abstract: In a process for removal of volatile matter such as ammonia, hydrogen-sulphide, and prussic acid from coke-oven plant water by means of gas in a stripper, the tail gas of an ammonia destruction unit is used as stripping gas. Tail gas from a Claus plant can be proportioned to the tail gas of the ammonia destruction unit.

Abstract: A coke quenching car comprises an open coke receptacle having a sloping bottom wall inclined toward one side, closely spaced vertical internal walls, a vertical side wall opposite the one side and end walls. All of the walls are formed with cooling fluid passages. The vertical side wall includes a coke discharge opening closed by a swingable L-shaped flap having a leg portion with a cooling fluid passage and a foot portion underhanging the bottom wall in a closed position. The foot portion is provided with aperatures for draining quench water from the receptacle when the flap is swung into a drain position. A fluid cooled slidable cover for the receptacle is provided.

Abstract: In a process for the separation of the water resulting during coking in a small salt-rich fraction and a large salt-poor fraction, the crude gas, after being cooled in the condenser is directed through an electrofilter, prior to entering the primary coolers. Thereby, the condensate resulting from the condenser and the discharge of the electrofilter are united in the tar separator, while the condensate of the primary coolers is partially returned to the condenser circuit and the balance is the salt-poor fraction. Oppositely thereto, the aqueous phase of the tar separator is further treated as the salt-rich fraction. After exiting the electrofilter, the crude gas can be fractionally cooled also in several primary coolers.

Abstract: Coking coal is preheated and dried by passing hot carrier gas into a generally vertical flash drying pipe, then passing comminuted coal into the same pipe, the carrier gas being blown with a flow speed to move the coal upwards in the pipe and passing at about the midpoint of the pipe a mixture of hot combustion gases and additional hot recycle gas branched off from the other hot waste gas line into the pipe so as to cause further heating and moving of the coal, the further heating being carried out in a uniform and gentle manner. At the end of the pipe the coal and carrier gas are separated and the coal is recovered while the waste gas are recycled into a blower and therefrom into the vertical flash drying pipe with a branch leading part of the recycle gas into a mixing chamber with the combustion gases so as to lower the temperature of the combustion gases when the same are passed into the pipe.