Abstract:
The invention relates to a cogeneration process with gasification of organic material, comprising the steps of: - loading only organic material into a collection tank (10); - supplying at least part of said organic material to a gasification reactor (20); - producing Syngas in said gasification reactor (20) through gasification of at least part di said organic material supplied to said gasification reactor (20); - filtering said Syngas; - supplying the filtered Syngas to at least one internal combustion engine (50); - generating electrical energy by means of an electric generator (60) connected to said at least one internal combustion engine (50). The production of Syngas in said gasification reactor (20) is carried out at a reaction temperature comprised between about 1200 °C and about 1300 °C as a result of a forced injection of combustion air in said gasification reactor (20) and of a generation of whirling movements and/or turbulences of said combustion air in said gasification reactor (20). The invention also relates to a cogeneration plant (100) with gasification of organic material.
Abstract:
Silicon employable in a photovoltaic cell is produced from agricultural residue. The process includes the steps of (a) thermochemically converting the lignocellulosic portion of agricultural residue to form (i) a producer gas stream comprising carbon monoxide and hydrogen, and ii) a quantity of ash comprising silicate material, carbon char and at least one of phosphorus, potassium and a metal; (b) directing the producer gas stream to a generator to generate electric power and heat; (c) leaching the ash with acidic fluid to separate the phosphorus, potassium or metal to produce a mixture of the silicate material and carbon char; (d) heating the silicate and carbon mixture to produce silicon metal and carbon dioxide by carbothermal reduction. Rice hulls are the most preferable agricultural residue. A corresponding apparatus produces photovoltaic-grade silicon. The apparatus includes an indirectly-heated pyrolytic gasifier, a generator, an acid wash and a carbothermal reactor.
Abstract:
A modular power generation system including a gasification reactor is disclosed for converting fuel, such as, but not limited to, biomass, to syngas to replace petroleum based fuels used in power generation. The system may include a reactor vessel with distinct reaction zones that facilitate greater control and a more efficient system. The system may include a sealing system for a continuous feed system of a gasifier enabling an inlet opening of a feedstock system to remain open yet seal the reactor without a mechanical system. The system may include a syngas heater channeling syngas collected downstream of the carbon layer support and to the pyrolysis reaction zone. The system may also include a syngas separation chamber configured to produce clean syngas, thereby requiring less filtering. The system may further include an agitator drive assembly that prevents formation of burn channels with in the fuel.
Abstract:
Methods of making fuel are described herein. A method may include providing a first working fluid, a second working fluid, and a third working fluid. The method may also include exposing the first working fluid to a first high voltage electric field to produce a first plasma, exposing the second working fluid to a second high voltage electric field to produce a second plasma, and exposing the third working fluid to a third high voltage electric field to produce a third plasma. The method may also include providing and contacting a carbon-based feedstock with the third plasma, the second plasma, and the first plasma within a processing chamber to form a mixture, cooling the mixture using a heat exchange device to form a cooled mixture, and contacting the cooled mixture with a catalyst to form a fuel.
Abstract:
The present specification discloses operation of a waste treatment system for treating a feed by bringing the feed into contact with a molten metal in a first vessel. A jet of air is ejected from a lance into the molten metal to react with the molten metal to form a layer of molten slag-oxide. The feed is selected from coal, coal-liquid slurry, biomass, waste-derived material, crude oil, tar sands, shale-derived material, or a combination thereof. The molten metal bath material comprises carbon, silicon, manganese, chromium, sulfur, phosphorus, aluminum and titanium. Exhaust gases evolving from the molten metal and molten slag-oxide layer are directed to a second vessel to treat the exhaust gases to a pre-determined proximate gas molar composition.
Abstract:
A system configured for the production of at least one product selected from the group consisting of syngas, Fischer-Tropsch synthesis products, power, and chemicals, the system comprising a dual fluidized bed gasification apparatus and at least one apparatus selected from power production apparatus configured to produce power from the gasification product gas, partial oxidation reactors configured for oxidation of at least a portion of the product gas, tar removal apparatus configured to reduce the amount of tar in the product gas, Fischer-Tropsch synthesis apparatus configured to produce Fischer-Tropsch synthesis products from at least a portion of the product gas, chemical production apparatus configured for the production of at least one non-Fischer-Tropsch product from at least a portion of the product gas, and dual fluidized bed gasification units configured to alter the composition of the product gas. Methods of operating the system are also provided.
Abstract:
Die Erfindung betrifft einen Reaktor (1) zum Vergasen von Biomasse, insbesondere Holz, aufweisend einen Füllschacht (7) und ein unter dem Füllschacht (7) angeordnetes Aschebett. Erfindungsgemäß ist vorgesehen, dass eine Einrichtung vorgesehen ist, mit der am Füllschacht (7) anhaftende Biomasse lösbar ist und/oder ein Wärmetauscher vorgesehen ist, mit dem ein aus der Biomasse erzeugtes Produktgas Wärme an im Füllschacht (7) nachgeführte Biomasse sowie an eine Oxidationsluft abgibt. Die Erfindung betrifft weiter einen Feinfilter (29) zum Reinigen eines aus Biomasse erzeugten Produktgases. Erfindungsgemäß ist vorgesehen, dass das Filtermedium Biomasse enthält. Darüber hinaus betrifft die Erfindung ein Verfahren zur Vergasung von Biomasse in einem Reaktor (1), insbesondere einem erfindungsgemäßen Reaktor (1), zu einem Produktgas. Erfindungsgemäß ist vorgesehen, dass am Füllschacht (7) anhaftende Biomasse gelöst und/oder vom Produktgas Wärme an Biomasse und eine Oxidationsluft abgegeben wird.
Abstract:
A method for making pulp (200) and crude biofuel (310) from screened chips (108) of wood. The method comprises producing pulp (200) and black liquor (220) from the screened chips (108) in a pulp production process, and evaporating water from the black liquor (220) in an evaporator (222) to produce concentrated black liquor (223). The method further comprises treating a part (223b) of the concentrated black liquor with at least one treatment agent (300, 301) in an elevated temperature and an elevated pressure to produce crude biofuel (310) and cooking chemicals (312), and conveying the cooking chemicals (312) to the pulp production process. The treatment agent may essentially consist of hydrogen and carbon monoxide. The treatment agent may essentially consist of water and sodium hydroxide. A system for performing the method is also disclosed. In addition, a process for integrating a black liquor refining process with a process for producing pulp is disclosed.
Abstract:
Procedimiento e instalación para el tratamiento de neumáticos granulados fuera de uso a través de un proceso de destilación de los materiales poliméricos que componen los neumáticos fuera de uso, tales como caucho natural y sintético; y de la gasificación del residuo sólido o negro de carbono.