摘要:
The present application is directed to a gas-generating apparatus (10). Hydrogen is generated within the gas-generating apparatus and is transported to a fuel cell. The generation of hydrogen is regulated automatically by the selective exposure of a catalyst (48) to the fuel mixture depending on the pressure inside the reaction chamber (28) of the gas-generating apparatus. Catalyst sealing mechanisms (40, 42) are provided at least partially within the reaction chamber to regulate the hydrogen pressure and to minimize the fluctuations in pressure of the hydrogen received by the fuel cell.
摘要:
In some examples, a method for treating a reforming catalyst, the method comprising heating a catalyst metal used for reforming hydrocarbon in a reducing gas mixture environment. The reducing gas mixture comprises hydrogen and at least one sulfur-containing compound. The at least one sulfur-containing compound includes one or more of hydrogen sulfide, carbonyl sulfide, carbonyl disulfide and organic sulfur-containing compounds such as thiophenes, thiophanes, sulfides (RSH), disulfides (RS2R′), tri-sulfides (RS3R′) and mercaptans (RSR′).
摘要:
The present invention relates to a monolith catalyst for a carbon dioxide reforming reaction and to a preparation method for same, and more specifically the invention provides a preparation method for a monolith catalyst for a methane reforming reaction using carbon dioxide, the method comprising a step of mixing and impregnating a support in a metal precursor solution, coating a monolith substrate with the solution resulting from the mixing and impregnating, drying same and then calcining the monolith substrate coated with the solution resulting from the mixing and impregnating.
摘要:
The present invention relates to a device for producing compressed hydrogen, comprising a pressure-resistant reactor (1) with a reactor chamber having a metal-containing contact mass (2), wherein the reactor (1) comprises at least one feed line (3) for feeding fluids into the reactor chamber and at least one discharge line (4) for discharging fluids from the reactor chamber, wherein the at least one discharge line is provided with a device (5a, 5b, 5c, 5d) for controlling or regulating the flow rate, preferably having a valve, for adjusting the pressure within the reactor chamber, wherein a conveyance means is provided on at least one feed line for introducing a water-containing medium into the reactor chamber and wherein at least one discharge line (4) protrudes into the reactor chamber or opens directly into the reactor chamber, through which the compressed hydrogen is discharged from the reactor chamber, wherein the reactor chamber exhibits at least two areas that are separate from each other and connected in a gas-conducting manner, of which at least one area comprises the metal-containing contacting mass (2) and at least one additional area comprises at least one inert material (7, 13).
摘要:
An enhanced Fischer-Tropsch process for the synthesis of sulfur free, clean burning, green hydrocarbon fuels, examples of which include syndiesel and aviation fuel. Naphtha is destroyed in a hydrogen generator and recycled as feedstock to a syngas (FT) reactor in order to enhance the production of syndiesel from the reactor. A further variation integrates a second hydrogen generator capturing light hydrocarbon gas for conversion to hydrogen and carbon monoxide which supplements the Fischer-Tropsch reactor. The result is a considerable increase in the volume of syndiesel formulated. A system for effecting the process is also characterized in the specification.
摘要:
Various embodiments disclosed relate to cooling shale gas via reaction of methane, light hydrocarbons, or a combination thereof, with water. In various embodiments, the present invention provides a method of cooling syngas. The method includes contacting the hot syngas with methane or light hydrocarbons. The hot syngas includes water and has a temperature of about 800° C. to about 3000° C. The contacting is effective to endothermically react the methane or light hydrocarbons with the water in the hot syngas to form carbon monoxide and hydrogen and to provide a cooled syngas having a lower temperature than the hot syngas.
摘要:
A hydrogen generator that can be operated in a broad temperature range is disclosed, which comprises a first ammonia conversion part having a hydrogen-generating material which reacts with ammonia in a first temperature range so as to generate hydrogen; a second ammonia conversion part having an ammonia-decomposing catalyst which decomposes ammonia into hydrogen and nitrogen in a second temperature range; an ammonia supply part which supplies ammonia; and an ammonia supply passage which supplies ammonia from said ammonia supply part to the first and second ammonia conversion parts. The first temperature range includes temperatures lower than the second temperature range, and hydrogen is generated from ammonia by selectively using the first and second ammonia conversion parts. An ammonia-burning internal combustion engine and a fuel cell having the hydrogen generator are also disclosed.
摘要:
A eutectic supported catalyst system is used in catalyzed chemical reactions. A metal catalyst particle is supported in a eutectic medium. The system may have a) a eutectic composition of at least two metals forming the eutectic composition; and b) metal catalyst particles, preferably of nanometer dimensions, such as from 0.5 to 50 nm. The particles are dispersed throughout the eutectic composition when the eutectic composition is solid, and the particles are dispersed or suspended throughout the eutectic composition when the eutectic composition is in liquid form. At least one metal of the eutectic may comprises lead and a metal in the metal catalyst is a different metal then the metals in the eutectic. The eutectic may be in a liquid state and the metal catalyst particles may be in an equilibrium state within the eutectic.
摘要:
The present disclosure relates to a catalyst having metal catalyst nanoparticles supported on natural cellulose fibers and a method of preparing the same, whereby natural cellulose fibers are subjected to specific pretreatment to increase a surface area and form defects on the surface thereof and metal catalyst nanoparticles are then supported on the cellulose catalyst support in a highly dispersed state, thereby providing improved catalysis while allowing production of the catalyst at low cost. The catalyst may be utilized for various catalytic reactions.
摘要:
The invention relates to a process for the production of liquid hydrocarbons by the use of light-end fractions from downstream synthesis in the reforming section of the plant.