摘要:
Reforming exchangers for syngas production are provided. The reforming exchangers can have a shell-and-tube configuration and include a shift catalyst on the shell side of the exchanger to reduce a carbon monoxide concentration in a shell side product gas mixture. Processes for forming syngas using the reforming exchangers are also provided.
摘要:
A process for producing hydrogen and power comprises subjecting a gaseous hydrocarbon feedstock to an endothermic steam reforming reaction by contacting the feedstock, in a reaction zone, in the presence of steam, with catalyst to obtain a mixture comprising hydrogen and carbon monoxide; recovering hydrogen from the mixture; feeding fuel and oxidant to a turbine system comprising a compressor, combustion chamber and expansion turbine, wherein the compressor is coupled to the turbine, the oxidant is compressed in the compressor to obtain compressed oxidant, and the fuel is combusted with the compressed oxidant in the chamber to obtain a stream of combusted gas; feeding at least part of the stream to the turbine to generate power and to obtain a turbine flue gas; and providing heat for the reforming reaction from the combusted gas and/or the flue gas; and liquefaction of the recovered hydrogen by subjecting it to a liquefaction cycle.
摘要:
Reforming exchangers for syngas production are provided. The reforming exchangers can have a shell-and-tube configuration and include a shift catalyst on the shell side of the exchanger to reduce a carbon monoxide concentration in a shell side product gas mixture. Processes for forming syngas using the reforming exchangers are also provided.
摘要:
Method for producing synthesis gas for methanol production The present invention relates to a method for producing synthesis gas from a hydrocarbon containing feed, which synthesis gas is particularly suitable for subsequent use in methanol production. In this method, a feed (100) is divided into two streams, wherein one stream is subjected to catalytic partial oxidation (CPO) (2) and the other stream is subjected to steam reforming (5) followed by a water gas shift reaction (51). The two streams are then recombined and can be used further in methanol synthesis (6). The recombined stream preferably has an R ratio, being a molar ratio (H2−C02)/(CO+C02), in the range of 1.9-2.2 and preferably about 2. The invention further relates to a method for producing methanol from a hydrocarbon containing feed, wherein first synthesis gas is obtained according to the method of the invention, which synthesis gas is further used to produce methanol. Also, the invention relates to a method of adapting an existing methanol plant to the methanol production process of the invention.
摘要:
Systems and methods for hydrogen production with carbon capture are provided. A hydrogen containing stream can be divided so that a portion of the stream is processed for separation of CO2. A hydrogen enriched stream formed during separation of CO2 and another portion of the hydrogen containing stream can be processed in a cycling adsorber unit to form a hydrogen product stream. Optionally, the cycling adsorber unit can be operated to form a plurality of tail gas streams. The hydrogen containing stream can be a reformed hydrocarbon stream and/or an input stream previously exposed to a water gas shift catalyst. Optionally, a portion of the reformed hydrocarbon stream can be a reformed biocomponent stream.
摘要:
A method and plant for thermal treatment and chemical transformation of waste comprising natural and synthetic carbonaceous materials for generation of a fuel gas for further use is described. Pyrolysis gas and solid waste from a thermolysis and pyrolysis reactor (40), is further processed to produce a fuel gas having a substantially stable WOBBE index.
摘要:
A hydrogen generating apparatus includes a reformer generating hydrogen-containing gas through a reforming reaction, a raw material supplier supplying a raw material to the reformer, a reaction gas supplier supplying reaction gas other than the raw material to the reformer, a hydro-desulfurizer removing a sulfur compound in the raw material supplied to the reformer, a recycle flow passage through which part of the hydrogen-containing gas generated by the reformer is supplied to the hydro-desulfurizer, a closing device that closes the recycle flow passage, and a controller that, when stopping operation, closes the closing device and controls the raw material supplier and the reaction gas supplier such that the raw material and the reaction gas are supplied to the reformer, before a temperature of the reformer drops down to a temperature at which deposition of carbon from the raw material on a reformation catalyst disposed inside the reformer is suppressed.
摘要:
The present invention relates to a method and system for recovering and processing a hydrocarbon mixture from a subterranean formation. The method comprises: (i) mobilising said hydrocarbon mixture; (ii) recovering said mobilised hydrocarbon mixture; (iii) deasphalting said recovered hydrocarbon mixture to produce deasphalted hydrocarbon and asphaltenes; (iv) gasifying said asphaltenes in a gasifier to generate hydrogen, steam and/or energy and CO2; (v) upgrading said deasphalted hydrocarbon by hydrogen addition to produce upgraded hydrocarbon; and (vi) adding a diluent to said upgraded hydrocarbon, wherein said method is at least partially self-sufficient in terms of hydrogen and diluent.
摘要:
Systems and methods are provided for capturing CO2 from a combustion source using molten carbonate fuel cells (MCFCs). The fuel cells are operated to have a reduced anode fuel utilization. Optionally, at least a portion of the anode exhaust is recycled for use as a fuel for the combustion source. Optionally, a second portion of the anode exhaust is recycled for use as part of an anode input stream. This can allow for a reduction in the amount of fuel cell area required for separating CO2 from the combustion source exhaust and/or modifications in how the fuel cells are operated.
摘要:
Process for synthesizing hydrocarbons includes: reforming a hydrocarbon feedstock containing inert gases in reforming stages to generate a synthesis gas including the inert gases, steam, hydrogen and carbon monoxide; cooling the synthesis gas below the dew point to obtain a dewatered synthesis gas; synthesizing hydrocarbons from the dewatered synthesis gas by the Fischer-Tropsch reaction and separating at least part of the synthesized hydrocarbons, to give a tail gas; subjecting a mixture of at least part of the tail gas and steam to the water-gas shift reaction, to form shifted tail gas having increased hydrogen and carbon dioxide contents; subjecting the shifted tail gas to one or more membrane separation stages thereby generating an inert gas-containing gas mixture and one or more of a hydrogen-, carbon dioxide- and a hydrocarbon-containing gas mixture; and using one or more of the hydrogen-, carbon dioxide- and hydrocarbon-containing gas mixture in a reformer feed stream.