Coupling an electric furnace with a liquid fuel synthesis process to improve performance when processing heterogeneous wastes

An improved method for processing heterogeneous municipal solid waste, biomass and even construction and demolition waste into liquid hydrocarbon fuels and chemicals is obtained by coupling the synthesis process with an electric furnace. The furnace separates the metals and inorganics from the organic materials. The high temperatures gasify the organics into a relatively clean syngas after particulate and acid gas removal. The yield is increased above that expected from the feedstock by the addition of waste effluents from the synthesis process, such as CO2, H2O and possibly tail gas constituents. The recycled effluents are heated by the syngas being quenched in heat exchangers. Excess high pressure effluents are also heated by the syngas for power generation via gas or steam turbine generators. The optimum concentration of added effluents and heat exchanger configurations are determined by novel methods for maximum yield, energy efficiency and minimum carbon footprint.

Coupling an electric furnace with a liquid fuel synthesis process to improve performance when processing heterogeneous wastes

An improved method for processing heterogeneous municipal solid waste, biomass and even construction and demolition waste into liquid hydrocarbon fuels and chemicals is obtained by coupling the synthesis process with an electric furnace. The furnace separates the metals and inorganics from the organic materials. The high temperatures gasify the organics into a relatively clean syngas after particulate and acid gas removal. The yield is increased above that expected from the feedstock by the addition of waste effluents from the synthesis process, such as CO2, H2O and possibly tail gas constituents. The recycled effluents are heated by the syngas being quenched in heat exchangers. Excess high pressure effluents are also heated by the syngas for power generation via gas or steam turbine generators. The optimum concentration of added effluents and heat exchanger configurations are determined by novel methods for maximum yield, energy efficiency and minimum carbon footprint.

Process and apparatus for the partitioning and thermal treatment of heterogeneous feedstock

A novel process and apparatus for the thermal partitioning of heterogeneous feedstock (11) for the production of a metal product, a glass ceramic product and a gaseous product. The process includes the capability for thermal treatment of hazardous waste as defined by the Environmental Protection Agency (EPA) which also contains radioactive isotop es in some cases (mixed waste as defined by the Department of Energy) and the production of stable long-lived products as a result of treatment. More specifically, this invention relates to a novel process and apparatus whereby an input feed stream (9) of a widely heterogeneous nature in the descriptors of physical form, combustibility, chemical content, and particle size and contaminated with varying concentrations of hazardous components and/or radioisotopes is treated in a direct current graphite electrode arc melter (4) with a contiguous thermal oxidizing reactor (5) for the production of a metal product, a basalt-like glass ceramic product and a fully combusted offgas. The apparatu s described incorporates an offgas fast quench configuration (17) for the minimization of dioxin formation and subsequent ease of cleansi ng of the offgas stream.

Processo e aparelho para a divisão e tratamento térmico de matéria-prima de alimentaçãoheterogênea

Patente de Invenção: <B>"PROCESSO E APARELHO PARA A DIVISãO E TRATAMENTO TéRMICO DE MATéRIA-PRIMA DE ALIMENTAçãO HETEROGêNEA"<D>. Um novo processo e aparelho para a divisão térmica de matéria-prima de alimentação

Process and apparatus for the partitioning and thermal treatment of heterogeneous feedstock

Process and apparatus for the partitioning and thermal treatment of heterogeneous feedstock

A novel process and apparatus for the thermal partitioning of heterogeneous feedstock (11) for the production of a metal product, a glass ceramic product and a gaseous product. The process includes the capability for thermal treatment of hazardous waste as defined by the Environmental Protection Agency (EPA) which also contains radioactive isotopes in some cases (mixed waste as defined by the Department of Energy) and the production of stable long-lived products as a result of treatment. More specifically, this invention relates to a novel process and apparatus whereby an input feed stream (9) of a widely heterogeneous nature in the descriptors of physical form, combustibility, chemical content, and particle size and contaminated with varying concentrations of hazardous components and/or radioisotopes is treated in a direct current graphite electrode arc melter (4) with a contiguous thermal oxidizing reactor (5) for the production of a metal product, a basalt-like glass ceramic product and a fully combusted offgas. The apparatus described incorporates an offgas fast quench configuration (17) for the minimization of dioxin formation and subsequent ease of cleansing of the offgas stream.

Rotating-translational drive mechanism for positioning devices in a melter

Rotating-translational drive mechanism for positioning electrodes in a plasma arc melter