摘要:
Various processes and apparatus are discussed for an ultra-high heat flux chemical reactor. A thermal receiver and the reactor tubes are aligned to 1) absorb and re-emit radiant energy, 2) highly reflect radiant energy, and 3) any combination of these, to maintain an operational temperature of the enclosed ultra-high heat flux chemical reactor. Particles of biomass are gasified in the presence of a steam carrier gas and methane in a simultaneous steam reformation and steam biomass gasification reaction to produce reaction products that include hydrogen and carbon monoxide gas using the ultra-high heat flux thermal energy radiated from the inner wall and then into the multiple reactor tubes. The multiple reactor tubes and cavity walls of the receiver transfer energy primarily by radiation absorption and re-radiation, rather than by convection or conduction, to the reactants in the chemical reaction to drive the endothermic chemical reaction flowing in the reactor tubes.
摘要:
Provided are an apparatus and a method for rapidly producing a synthetic gas from a bio-diesel byproduct using microwave plasma, in which, while a plasma flame is generated by a plasma generator and waste glycerin, a bio-diesel byproduct, as fuel, is gasified by being supplied to the generated plasma flame of high temperature, the fuel is supplied in various types to increase the contact time or the contact area with the plasma flame and thus promote gasification thereof and the contents of steam and oxygen supplied and the plasma power are controlled to increase the collection amount of combustible gas and thus allow rapid production of the synthetic gas.
摘要:
A method of startup for a gasification system includes assembling a fuel mixture for use by a gasifier at a fuel mixture assembly point, wherein the fuel mixture includes a quantity of particulate solid fuel and a quantity of non-ventable carrier gas. The method includes channeling the fuel mixture through a first conduit to a fuel mixture disassembly system including a non-ventable carrier gas removal apparatus, establishing a substantially steady flow of the fuel mixture within the first conduit, and redirecting the fuel mixture through a second conduit to the gasifier to facilitate gasifier startup.
摘要:
The present disclosure provides tunable catalytic gasifier systems suitable for gasifying coal, biomass, and other fuel sources. The gasifier reactors of the disclosed systems may be heated by, e.g., a catalytic tube or other jacket that generates heat by catalytically combusting syngas, which syngas may be syngas produced by the gasifier system.
摘要:
A solids supply system having a solids deaeration zone and a solids pump zone, and a method for supplying the solids e.g., pulverized dry coal, to an application, e.g., gasification process. The solids deaeration zone includes a container having a passageway defined by one or more sloped walls. The solids deaeration zone is operable to deaerate and convey the solids to the solids pump zone. In the solids deaeration zone, the solids become sufficiently compacted prior to and upon entry into the solids pump zone to be effectively conveyed through the solids pump zone.
摘要:
A system for the production of conversion products from synthesis gas, the system including a mixing apparatus configured for mixing steam with at least one carbonaceous material to produce a reformer feedstock; a reformer configured to produce, from the reformer feedstock, a reformer product comprising synthesis gas comprising hydrogen and carbon monoxide from the reformer feedstock; a synthesis gas conversion apparatus configured to catalytically convert at least a portion of the synthesis gas in the reformer product into synthesis gas conversion product and to separate from the synthesis gas conversion product a tailgas comprising at least one gas selected from the group consisting of carbon monoxide, carbon dioxide, hydrogen and methane; and one or more recycle lines fluidly connecting the synthesis gas conversion apparatus with the mixing apparatus, the reformer, or both.
摘要:
With a method for supplying an entrained-flow gasification reactor with carbonaceous fuel for the production of a gas that contains CO and H2 and flue ash under pressure and at a temperature above the melting point of the ash, wherein the resulting gas is passed to further treatment stages, particularly at least one synthesis stage, the waste gas that is derived from the subsequent treatment stage and still contains hydrocarbons and/or hydrogen is used for pneumatic conveying of the fuel into the entrained-flow gasification reactor.
摘要:
An injector for co-feeding liquid and solid fuels into a gasifier is provided. The injector includes a body, a first member, and a second member. The body comprises a first channel for conveying a liquid fuel. The first member surrounds the body to define a second channel for pneumatically conveying a solid fuel. The second member surrounds the first member to define a third channel for conveying a fluid stream for dispersing the solid fuel. The liquid fuel is atomized before being mixed with the solid fuel. A method for co-feeding liquid and solid fuels is also presented.
摘要:
The invention relates to a process and an apparatus for gasifying liquid and/or fine-grain solid gasification substances and/or for reforming a gas, using a gasification agent, in a reaction (1). In the process the process heat is supplied by heat carrier particles which are heated within a substantially closed circuit in a heater (5) by combustion gases which are produced in a combustion chamber (3), and passed through the reactor (1) in counter-flow relationship with the gasification substance or the gas to be reformed and the gasification agent, and then returned to the heater (5) for renewed heating. In accordance with the invention the particles and the combustion gas form a fluidized bed above at least one grid (34, 34a, 34b, 34c, 34d, 34e) arranged in the heater (5). The particles flow out of the heater (5) into the adjoining combustion chamber (3) in which they form a fluidized bed with the combustion gas and pass by way of a flow transfer pipe (7, 7') out of the combustion chamber (3) into an upper region of the reactor (1). The throughput of particles through the flow transfer pipe (7, 7') forms a seal which prevents a throughflow of product gas which is generated in the reactor (1). The particles form one or more fluidized beds in the reactor (1) with the gasification substance and/or the gas to be reformed.
摘要:
This invention provides a process and apparatus for gasifying a particulate solid carbonaceous fuel with a high moisture content, the process comprising: introducing the fuel into one or more pressurized drying vessels without adding water to the fuel; reducing the moisture content of the fuel in the drying vessel(s) to a level suitable for gasification by passing hot product gas through the or each drying vessel such that the fuel particles are entrained in the gas flow, thereby cooling and humidifying the gas; separating the cooled and humidified gas from the fuel; transferring the fuel with reduced moisture content from the or each drying vessel to a gasification vessel, gasifying the fuel in the gasification vessel to produce hot product gas; and introducing at least a portion of the hot product gas into the or each drying vessel. The invention also relates to an integrated process for producing power, especially electric power, from particulate solid carbanaceous fuel.