摘要:
A process for removing hydrocarbons from a feed stream containing hydrocarbons includes introducing ozone to the feed stream to produce an ozone doped stream containing ozone and hydrocarbons, and contacting the ozone doped stream with a supported metal catalyst at a temperature of from 100°C to 300°C to produce a treated stream, wherein the supported metal catalyst comprises iron supported on a support selected from aluminosilicates, silica-aluminas, silicates and aluminas. A process for removing NOx from a feed stream containing NOx, and an apparatus for removing hydrocarbons and/or NOx from a feed stream containing hydrocarbons and/or NOx are also provided.
摘要:
The invention relates to a process for reforming a hydrocarbon feed stream comprising a hydrocarbon gas and steam, said process comprising the steps of: a) in a synthesis gas generation reactor carrying out a reforming reaction of the hydrocarbon feed stream over a first catalyst, thereby forming a first synthesis gas; b) providing a heated CO 2 rich stream to a post converter comprising a second catalyst; and c) in said post converter carrying out a methanation, steam reforming and reverse water gas shift reactions of the first synthesis gas and the heated CO 2 rich stream to produce a product synthesis gas, wherein said second catalyst is heated electrically by means of an electrical power source. The invention moreover relates to a system arranged to carry out the process of the invention.
摘要:
The present invention provides a process for the decomposition of methane and/or the conversion of methane to carbon monoxide and hydrogen and/or conversion of methane to hydrogen and/or the conversion of methane to oxygenated products by a catalytic process wherein said process comprises contacting a feed mixture comprising methane and an oxidant with a catalytic composition comprising a metal-doped apatite at a low temperature, such processes have application, for instance, in treating engine exhaust gases, syngas generation and hydrogen generation. Also provided are metal-doped apatite catalysts as defined herein, processes for their preparation and uses thereof.
摘要:
The present invention relates to a method for catalytic partial oxidation of hydrocarbons into syngas in a reactor, to the reactor, and to a method for producing a catalytic oxygen permeable membrane system for use in the reactor. The membrane system is prepared by providing a monolith membrane support, pretreating the membrane support, and coating it, drying and precalcining it, and repeating steps coating, drying and precalcining steps at least once, before providing final calcination to the coated membrane support, whereby the membrane system is obtained.
摘要:
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.
摘要:
In accordance with the present invention, disclosed herein is a method comprising the steps for producing lower molecular weight C1-C5 hydrocarbons and alcohols. Also disclosed herein, are systems utilized to produce low molecular weight C1-C5 hydrocarbons and alcohols.
摘要:
The present invention relates to an integrated process for producing synthesis gas which comprises the following stages: a) dividing a gaseous hydrocarbon stream into a first and a second stream, preferably comprising natural gas and/or refinery gas, b) sending the first stream, after mixing with steam, to a Steam Reforming section and thereby producing a first stream of synthesis gas, c) sending the second stream to a short contact time -catalytic partial oxidation section, after mixing with a stream containing oxygen, steam and optionally CO 2 , and a third stream containing liquid and/or gaseous compounds, in which said gaseous compounds are selected from hydrocarbons other than natural gas and/or refinery gas, or among gaseous compounds deriving from bio-masses, and wherein said liquid compounds are selected from hydrocarbons, or compounds of various nature deriving from bio-masses, or mixtures thereof, and thus producing a second stream of synthesis gas.
摘要:
Die vorliegende Erfindung betrifft eine Vorrichtung zum Herstellen von komprimiertem Wasserstoff umfassend einen druckstabilen Reaktor (1) mit einem Reaktorraum, der eine metallhaltige Kontaktmasse (2) aufweist, wobei der Reaktor (1) mindestens eine Zuführleitung 3 zum Zuführen von Fluiden in den Reaktorraum und mindestens eine Abführleitung (4) zum Abführen von Fluiden aus dem Reaktorraum umfasst, wobei die mindestens eine Abführleitung mit einer Vorrichtung (5a, 5b, 5c, 5d) zur Steuerung oder Regelung der Durchflussmenge, vorzugsweise mit einem Ventil, zur Einstellung des Drucks innerhalb des Reaktorraums versehen ist, wobei an mindestens einer Zuführleitung ein Fördermittel zum Einbringen eines wasserhaltigen Mediums in einen Reaktorraum vorgesehen ist und wobei mindestens eine Abführleitung (4) in den Reaktorraum ragt oder unmittelbar in den Reaktorraum mündet, über die komprimierter Wasserstoff aus dem Reaktorraum abgeführt wird, wobei der Reaktorraum mindestens zwei voneinander getrennte und gasleitend miteinander verbundene Bereiche aufweist, von denen mindestens ein Bereich die metallhaltige Kontaktmasse (2) und mindestens ein weiterer Bereich mindestens ein inertes Material (7, 13) umfasst.
摘要:
A method and system for producing hydrogen using an oxygen transport membrane based reforming system is disclosed that carries out a primary reforming process within a reforming reactor, and a secondary reforming process within a reactively driven and catalyst containing oxygen transport membrane reactor with or without an auxiliary source of heat to support primary reforming process within the reforming reactor to first form a synthesis gas product. The auxiliary source of heat is disposed within the oxygen transport membrane based reforming system proximate to the reforming reactors and comprises an auxiliary oxygen transport membrane reactor or a ceramic burner. The synthesis gas product is further treated in a separate high temperature water gas shift reactor and optionally in a separate low temperature water gas shift reactor. Hydrogen is produced from the resulting hydrogen-enriched gas using hydrogen PSA.
摘要:
The present application relates to a process for producing a catalyst,said process comprising the steps of: providing a carrier and following modifying said carrier by a first impregnation with at least one alkaline earth metal in a first metal precursor solution. The first metal precursor is decomposed to form at least one metal oxide or metal hydroxide thereby obtaining a modified carrier and a second impregnation is carried out by incipient wetness by a second precursor solution comprising at least one metal Me in a second solution. Finally the second precursor is decomposed thereby obtaining a catalyst body having an enrichment of the at least one metal Me in the outer shell of the catalyst body, said at least one metal being present in a concentration having either as an egg-shell profile or a hammock profile.