Abstract:
The present disclosure relates to a power production system that is adapted to achieve high efficiency power production with carbon capture when using a solid or liquid hydrocarbon or carbonaceous fuel. More particularly, the solid or liquid fuel first is partially oxidized in a partial oxidation reactor that is configured to provide an output stream that is enriched in methane content. The resulting partially oxidized stream can be cooled, filtered, additionally cooled, and then directed to a combustor of a power production system as the combustion fuel. The partially oxidized stream is combined with a compressed recycle CO2 stream and oxygen. The combustion stream is expanded across a turbine to produce power and passed through a recuperator heat exchanger. The recycle CO2 stream is compressed and passed through the recuperator heat exchanger and optionally the POX heat exchanger in a manner useful to provide increased efficiency to the combined systems.
Abstract:
The invention relates to a method and a membrane module for the process-integrated oxygen generation during biomass gasification, the oxygen being generated by means of mixed ionic-electronic conductive ceramic membranes at high temperatures. The aim of the invention is to devise a method and a device for the energy-efficient generation of oxygen during biomass gasification in order to increase the efficiency of the entire process. According to the invention, the disadvantages of the prior art are overcome by a membrane module which is heated directly with the synthesis gas stemming from the biomass gasification. The heating, however, should cover only less than 20% typically less than 10% and, under optimum conditions, only approximately 5% of the heat requirement of the membrane module. The major part of the heat required to heat the fresh air is removed from the exhaust air of the membrane module by heat exchange.
Abstract:
An arrangement and a method for burning fuel. The arrangement (1) comprises gasification equipment (3) for converting fuel (F) into product gas (G) by gasification and a combustion plant (5) for burning the product gas (G). The gasification equipment (3) comprises means for gasifying fuel at a low temperature. The arrangement (1) also comprises a separator (4) arranged between the gasification equipment (3) and the combustion plant (5) so that substantially all product gas (G) conveyed into the combustion plant flows from the gasification equipment (3) through the separator into the combustion plant (5). The separator (4) comprises means for purifying the product gas (G) of solids.
Abstract:
Apparatus to generate syngas from a feed using a melt contained in a gasifier. The melt is formed by electric inductive heating using one or more induction coil. The induction coil is supplied with single phase power supplied from a generator. The generator is connected to an electric motor (three phase). This provides sufficient electrical isolation during operation of the gasifier.
Abstract:
L'invention concerne une masse active oxydo-réductrice comprenant un minerai naturel de manganèse de type pyrolusite comprenant initialement au moins 60% massique de MnO 2 , ledit minerai étant enrichi en nickel, et ladite masse comprenant un oxyde métallique mixte nickel-manganèse cristallisé selon la structure spinelle. La masse active oxydo-réductrice se présente sous forme de particules. L'invention porte également sur un procédé de combustion de charges hydrocarbonées solides, liquides ou gazeuses par oxydo- réduction en boucle chimique utilisant une telle masse active oxydo- réductrice, et sur un procédé de préparation d'une telle masse. De manière avantageuse, l'invention s'applique dans le domaine du captage du CO 2 .
Abstract:
The application provides a method and a gasifier for generating synthesis gas from a molten metal gasifier having a melt disposed within the gasifier, the melt comprising a molten metal. Feedstock is reduced in size size to yield an intermediate feed material with a firs predetermined size range at a first remote site. The intermediate feed material is processed to a reduced size feed fuel with a second pre-determined size rage at a second remote site, the second remote site being physically separate from the first remote site. The reduced size feed fuel and an oxidant gas is brought into fluid contact with the melt, the melt having a temperature of at least 700 degrees Celsius, to generate synthesis gas from at least a portion of the reduced size feed fuel.
Abstract:
A two stage refuse gasification combustion system for processing refuse is disclosed. The system may contain features such as an advancer, a first and second gasifier, a gas regulator, and a post combustor. Additionally, methods for regulating gas and advancing refuse through a two stage refuse gasification combustion system are disclosed.