Abstract:
Systems and methods for processing a hydrocarbon are provided. The method can include gasifying a feedstock within a gasifier to provide a raw syngas. The raw syngas can be processed within a purification system to provide a treated syngas. A first portion of the treated syngas can be converted into a first effluent in a first methanator. The first effluent can be mixed with a second portion of the treated syngas to provide a first mixed effluent. The first mixed effluent can be converted into a second effluent in a second methanator. The second effluent can be mixed with a third portion of the treated syngas to provide a second mixed effluent. The second mixed effluent can be converted into a third effluent in a third methanator.
Abstract:
Systems and methods for maintaining a sulfur concentration in a syngas are provided. The method can include combining sulfur and a carbonaceous material to produce a sulfur containing carbonaceous feed. The method can also include gasifying at least a portion of the sulfur containing carbonaceous feed to produce a syngas and detecting a sulfur concentration in the syngas. The method can further include adjusting an amount of the sulfur combined with the carbonaceous material based on the detected sulfur concentration.
Abstract:
A solids circulation system captures and transfers char or other reacting solids from a gas stream created by a first reactor, to a second reactor. The second reactor has a dense fluid bed and converts the carbon in char or residual reactants in the solids to gaseous products. The solids circulation system comprises a cyclone that receives the gas stream with solids, the second reactor, a riser and a cyclone dipleg connected to the second reactor. A conveying fluid is utilized to transport a portion of the bed media from the second reactor through the riser to mix with the gas stream containing char or reacting solids prior to cyclone entry. The addition of the bed media helps to manipulate the properties (density and mean size) of the solids mixture that is captured by the cyclone and facilitate steady or quasi-steady dense phase flow of solids down the dipleg into the second reactor. This second reactor provides additional residence time, mixing and gas-solid contact for efficient conversion of char or reacting solids.
Abstract:
Die Erfindung betrifft ein Verfahren zum Herstellen eines Katalysators zum Cracken von organischen Kohlenstoffverbindungen, bei welchem zumindest die Schritte a) Herstellen einer wässrigen Suspension, welche Rotschlamm und zumindest ein Calcium-Salz umfasst, b) Erwärmen der Suspension auf eine Temperatur zwischen 25°C und 78°C und c) Abtrennen wenigstens eines überwiegenden Teils einer wässrigen Phase von einem festen, in Schritt b) erzeugten Produktgemisch, wobei das feste Produktgemisch den Katalysator umfasst, durchgeführt werden. Die Erfindung betrifft weiterhin einen Katalysator sowie ein Verfahren zum Cracken von organischen Kohlenstoffverbindungen.
Abstract:
The invention relates to a method for extracting carbon dioxide from the atmosphere, said method comprising the thermochemical conversion of biomasses as a natural intermediate vector for storing carbon dioxide, the carbon dioxide being trapped by a thermochemical cycle (3) that comprises a combustion reactor (8) and an oxidation chamber (9) connected together, and in which flow metal oxides which are alternately oxidised and reduced and which ensure the oxygen supply for the combustion, wherein said thermochemical conversion is achieved using a pyrolysis reactor (2) and said thermochemical cycle (3). According to the invention, the biomasses are dried (1) by air-lean fumes (13) exiting from the oxidation chamber (9) of said thermochemical cycle before said pyrolysis.
Abstract:
The present invention relates to a process for the gasification of carbon-containing compounds, characterized in that compounds are added which form carbides under the process conditions. These carbides can be used for the synthesis of useful materials such as for example acetylene.
Abstract:
L'invention concerne un procédé d'extraction de dioxyde de carbone de l'atmosphère, par une conversion thermochimique de biomasses, en tant que vecteur intermédiaire naturel de stockage du dioxyde de carbone,, une capture du dioxyde de carbone étant effectuée par un cycle thermochimique (3) comportant un réacteur de combustion (8) et une chambre d'oxydation (9) interconnectées, et dans lequel circulent des oxydes métalliques qui sont alternativement oxydés et réduits et qui assurent l'apport d'oxygène pour ladite combustion, cette conversion thermochimique étant réalisée au moyen d'un réacteur de pyrolyse (2) et dudit cycle thermochimique (3). Selon l'invention, ladite pyrolyse est précédée d'un séchage (1) des biomasses effectué par des fumées en air appauvri (13) sortant de ladite chambre d'oxydation (9) dudit cycle thermochimique.
Abstract:
A process for the conversion of natural gas to syngas. The process uses a solid oxidizing agent in place of an oxidizing gas for the partial oxidation of the natural gas.
Abstract:
A method of operating a gasifier includes providing a quantity of fuel operable to power the gasifier, adding slag modifying additive to the quantity of fuel to facilitate increasing a melting point of the fuel ash and an operational temperature range of the gasifier, adding a carrier gas to the quantity of fuel to facilitate maintaining an operational temperature of the gasifier within the operational temperature range, and adjusting at least one of the carrier gas content, a moisture content of the fuel, and slag modifying additive mixture to facilitate reducing a coal consumption and a oxygen consumption of the gasifier during operation.
Abstract:
A method and apparatus is described for reformulating of an input gas from a gasification reaction into a reformulated gas. More specifically, a gas reformulating system having a gas reformulating chamber, one or more plasma torches, one or more oxygen source(s) inputs and control system is provided thereby allowing for the conversion of an input gas from a gasification reaction into a gas of desired composition.