摘要:
A controlled kiln and manufacturing system for biochar production, including control systems and subsystems. An example controlled kiln (100) includes a drum (200), a lid (120) and a floor (250) together forming a combustion chamber configured to contain feedstock for conversion into biochar. A catalytic converter (700) may be operatively coupled with an outlet of the kiln (100). A conversion process completion detection subsystem may be operative to issue notifications. An example biochar manufacturing system includes at least one of the controlled kilns (100), a feedstock filling station (1010, 1020, 1030) for providing feedstock to kiln 100, a firing line (1040) for receiving the kiln containing feedstock, a tipping station (1050) for receiving biochar from the kiln, a biochar sizing station, and an automated handler (800) configured to move the kiln between the feedstock filling station (1010, 1020, 1030), the firing line (1040) and the tipping station (1050).
摘要:
Dosed proportioning and cutoff of combustion air into the primary heating space of a horizontal coke oven is provided by apertures in the ceiling of the coke oven chamber, the apertures covered with a withdrawable cover device which controls the amount of air admitted, manually or in an automatic mode. By way of this device, ventilation of a coke oven chamber with primary air can be so controlled that primary air is introduced in an exactly dosed manner and, depending on its place of installation, exactly distributed into the primary heating space of a coke oven chamber.
摘要:
The organic matter carbonization process is based on thermal treatment at high temperatures, under a controlled atmosphere, if possible in the absence of oxygen. The organic matter carbonization theory was expounded in this text, with emphasis on the thermodynamic aspects. It is shown in this exposition the important misfit between the endothermic and the exothermic carbonization stages, which hinders the use of the energy emitted during the exothermic stage by the brick kilns. Following there is a summary of the carbonization technique actual stage. The present invention relates to a method and plant for the thermal treatment of organic matter comprising independent reactors for the drying and pyrolysis of organic matter, and an independent reactor for the charcoal cooling. In this method the volatile products—non condensable gases and condensable pyrolytic vapors—are burned in an independent combustion chamber in order to supply the energy demanded by the process. In this way wood is not burned, and polluting substances are not emitted to the atmosphere. The method proposed by the present invention allows a precise control of the process in order to obtain the specified charcoal fixed carbon content; and a higher gravimetric yield, which gives an increase of the forest wood, either native or cultivated. In the independent pyrolysis and drying reactors proposed by the present invention, exiting flue gases from an external combustion chamber are driven to the drying reactor where the wood onto roll on buckets are heated and dried. Fuel gases emitted by the carbonizing wood are burned in the combustion chamber as an energy source. Inside the combustion chamber is placed a heat exchanger with the aim to reheat the pyrolytic gases. After reheated, these gases return to the carbonizing reactor in order to supply energy for the endothermic carbonizing step. The aim of this technique is to avoid the mixing of the fuel gases with the flue gases generated inside the combustion chamber, and to precisely control the carbonizing temperature. The present invention allows the production of intermediate products between wet wood and charcoal by halting the carbonization process at the desired stage in order to obtain anhydrous wood, char or, or high volatile content charcoal. The basic concepts of the process are: 1—Utilization of the emitted gases by the carbonizing wood as an energy source. 2—The stages of wood drying, wood pyrolysis and charcoal cooling are performed in independent reactors, inside which only one of these stages occurs. 3—Energy supply during the carbonizing endothermic stage of the pyrolysis by the gases emitted during this stage after reheated in a heat exchanger. Basically the present invention comprises the following equipments: 1—Reaction chambers inside which the process stages are performed. 2—An external combustion chamber. 3—A heat exchanger inside said combustion chamber. 4—A set of pipes. 5—A set of fans. 6—A loading system comprising roll on buckets.
摘要:
A separation apparatus for removing particulate material from a flash zone gas oil stream produced in a delayed coking unit. The apparatus of the invention employs cyclonic separation to remove particulate material from the flash zone gas oil stream. The stream can then be further processed, for example by passing the stream to a fixed bed catalytic hydroprocessing unit and then to a fluidized bed catalytic cracking unit, or to other processing units, thereby enhancing the value of the flash zone gas oil stream.
摘要:
A coke oven door for closing the open end of an elongated coking chamber of a nonrecovery coke oven, including process air vents extending through the door at a level above a coal charge to be coked, has a structural frame on its outer surface including an elongated manifold extending across the door adjacent its bottom with a plurality of inlet openings in the manifold, and a tubular duct system connecting the manifold to the process air inlets whereby reduced pressure in the oven will draw air through the process air inlets and the duct system to thereby draw emissions from the area at the base of the door into the oven for incineration.
摘要:
The production of biochar generates syngas, VOCs, CO and other gasses that can adsorb to biochar and reduce the quality of the final product. A controller measures the operating parameters, such as temperature, pressure and oxygen level, and automatically controls a feedstock auger motor, blower(s) and other subsystems of a continuous combined heat, power and biochar carbonizer. The carbonizer pyrolyzes feedstock. A catalytic converter combusts unburned components in by-product gases and generates additional thermal energy. Thermal energy drives an engine, such as a Sterling, steam, or ORC engine, to generate electricity or operate a mechanical device. Remaining thermal energy is transferred using another medium, such as air or water, via a heat exchanger. The feedstock is purposefully incompletely combusted, to produce biochar that consists largely of carbon. The biochar may be used to augment soil for cultivation, filtration or for other purposes. Some embodiments condense water from the exhaust to provide potable water.
摘要:
A system and apparatus for pyrolyzing solid wastes to recover there-from useful hydrocarbon distillates, carbon black, and other potentially commercially valuable by-products. Pyrolysis and distillation may be performed substantially continuously, rather than by batch processing. The pyrolysis unit including a distillation array featuring two or more parallel, heated, conveyors, arranged in alternative switch-backs, through which a feedstock is moved during pyrolysis. The feedstock moves from conveyor to conveyor, and thus may pass through zones of different temperature to optimize the distillation of various constituents from the feedstock. Friction-reducing components, such as rollers, are situated between adjacent pairs of conveyors so that temperature differentials, and the resulting contract or expansion of system components, are accommodated and associated stresses ameliorated.
摘要:
A system for pyrocatalytic conversion of non-halogenated synthetic resinous material is reacted in a molten lead bath in an oxygen free environment, wherein the non-halogenated resinous material is mixed with a particulate catalyst in the lead bath which is at a temperature in the range from about 450° C. to 55° C., wherein the non-halogenated resinous waste is thermally and catalytically converted with at least 60% effectiveness into reusable hydrocarbons which are removed as vapor form the molten lead bath and recovered as useable hydrocarbons.