摘要:
A direct carbonaceous material to power generation system integrates one or more solid oxide fuel cells (SOFC) into a fluidized bed gasifier. The fuel cell anode is in direct contact with bed material so that the H2 and CO generated in the bed are oxidized to H2O and CO2 to create a push-pull or source-sink reaction environment. The SOFC is exothermic and supplies heat within a reaction chamber of the gasifier where the fluidized bed conducts an endothermic reaction. The products from the anode are the reactants for the reformer and vice versa. A lower bed in the reaction chamber may comprise engineered multi-function material which may incorporate one or more catalysts and reactant adsorbent sites to facilitate excellent heat and mass transfer and fluidization dynamics in fluidized beds. The catalyst is capable of cracking tars and reforming hydrocarbons.
摘要:
A coal gasification process is provided based on the grading conversion of carbon hydrogen components of coal, wherein the coal gasification process comprises a carbonization process, a carbon monoxide-producing process and a shift reaction process. By blending the coke-oven gas, carbon monoxide and hydrogen produced in the above processes in different ratios, coal gasification syngases with various carbon hydrogen ratios can be obtained. Further, the coal gasification process does not need pure oxygen to take part in the reactions, and has several advantages, such as high gasification efficiency, low equipment investment costs, less limitation on the types of coal and flexible adjustment of the gasification products.
摘要:
This invention provides a system and method for pyrolyzing and/or gasifying material such as organically coated waste and organic materials including biomass, industrial waste, municipal solid waste and sludge. In a first mode of operation the method/system heats the material in a processing chamber (10) by passing hot gas therethrough. This pyrolyzes and/or gasifies the organic content it to produce syngas and, invariably, soot. In a second mode of operation the method/system increases the oxygen content of the hot gas such that the oxygen within the hot gas reacts with the heated soot to form carbon monoxide.
摘要:
A method, apparatus, and system for a solar-driven chemical plant are disclosed. Some embodiments may include a solar thermal receiver to absorb concentrated solar energy from an array of heliostats and a solar-driven chemical reactor. This chemical reactor may have multiple reactor tubes, in which particles of biomass may be gasified in the presence of a carrier gas in a gasification reaction to produce hydrogen and carbon monoxide products. High heat transfer rates of the walls and tubes may allow the particles of biomass to achieve a high enough temperature necessary for substantial tar destruction and complete gasification of greater than 90 percent of the biomass particles into reaction products including hydrogen and carbon monoxide gas in a very short residence time between a range of 0.01 and 5 seconds.
摘要:
A method of processing oil sands material including bitumen. The method includes subjecting the oil sands material to a predistillation process. The predistillation process includes heating the oil sands material to between approximately 350° C. and approximately 400° C., to produce atmospheric gas oil from the bitumen, and intermediate dried oil sands material, and heating the intermediate dried oil sands material to between approximately 535° C. and at least approximately 600° C., to produce vacuum gas oil and coked oil sands material comprising carbon-heavy hydrocarbons and sand. The method also includes subjecting the coked oil sands material to gasification, to produce barren hot oil sands material, and syngas comprising hydrogen and carbon monoxide gases.
摘要:
A method, apparatus, and system for a solar-driven bio-refinery that may include a entrained-flow biomass feed system that is feedstock flexible via particle size control of the biomass. Some embodiments include a chemical reactor that receives concentrated solar thermal energy from an array of heliostats. The entrained-flow biomass feed system can use an entrainment carrier gas and supplies a variety of biomass sources fed as particles into the solar-driven chemical reactor. Biomass sources in a raw state or partially torrified state may be used, as long as parameters such as particle size of the biomass are controlled. Additionally, concentrated solar thermal energy can drive gasification of the particles. An on-site fuel synthesis reactor may receive the hydrogen and carbon monoxide products from the gasification reaction use the hydrogen and carbon monoxide products in a hydrocarbon fuel synthesis process to create a liquid hydrocarbon fuel.
摘要:
The invention relates to a circulating fluidized bed (CFB) reactor for thermal processing of added carbonaceous material, the carbonaceous material normally comprises organic material or organic material mixed with inorganic material such as in straw or other vegetable waste, manure, household rubbish, dried wastewater, dried animal remains or other dried carbonaceous waste products. The invention also relates to a process for manufacturing a combustible product gas having a heating value around 4-8 MJ/Nm3 from such a carbonaceous material by subjecting the carbonaceous material to pyrolysis in one process step and oxidation in two subsequent process steps. A circulating fluidized bed (CFB) reactor according to the invention comprises a primary char gasification chamber (5) and an intermediate char gasification chamber (9) typically provided with a fluidized bed wherein the height (h10) of the second fluidized bed (10) in the intermediate char gasification chamber is larger than the height (hn) of the first fluidized bed (11) in the primary char gasification chamber (5).
摘要:
A process for optimizing a biomass feedstock for gasification for the production of syngas. The biomass feed, which is preferably a lignocellulosic material, is subjected to controlled torrefaction so that the biomass only undergoes a weight loss of about 10% to 15% on a dry ash free basis. This increases the energy density and friability of the so treated biomass and results in higher efficiency on subsequent gasification.
摘要:
A method is described for reducing the carbon footprint of any commercially important industrial conversion process. The output of this conversion process can be combustible fuels, chemicals, electricity or heat energy. In its broadest form, a carbon negative module outputs energy to a conversion energy and this energy replaces conventional fossil-fuel based energy. A sequesterable carbonaceous solid is produced by the carbon negative process which represents a net carbon withdrawal from the atmosphere.
摘要:
An apparatus which includes: a carbonizer (1) which pyrolyzes a biomass to yield a pyrolysis gas and a carbonization product; a furnace (2) in which the carbonization product supplied from the carbonizer (1) is burned; a closed vessel (3) which is disposed in the furnace (2) and holds therein a carbonate (4) which has been melted by the heat generated by the carbonization product burned in the furnace (2); an introduction pipe (5) disposed so that the pyrolysis gas is introduced into the molten carbonate (4) in the closed vessel (3); and a fuel gas supply pipe (6) disposed so that a fuel gas, which is the pyrolysis gas sent through the introduction pipe (5), passed through the molten carbonate (4), and purified by reaction with the molten carbonate (4), is sent from the closed vessel (3) to the outside of the furnace (2).