摘要:
One embodiment of the present invention is a unique fuel cell system. Another embodiment is a unique desulfurization system. Yet another embodiment is a method of operating a fuel cell system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fuel cell systems and desulfurization systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.
摘要:
A composition is described that includes oxides of zirconium, cerium and another rare earth different from cerium, having a cerium oxide content not exceeding 50 wt % and, after calcination at 1000° C. for 6 hours, a maximal reducibility temperature not exceeding 500° C. and a specific surface of at least 45 m2/g. The composition can be prepared according to a method that includes continuously reacting a mixture that includes compounds of zirconium, cerium and another rare earth having a basic compound for a residence time not exceeding 100 milliseconds, wherein the precipitate is heated and contacted with a surfactant before calcination.
摘要:
The present invention provides a method and apparatus for treating a first off-gas stream in a gasification process to provide an ammonium-rich stream. The method comprises providing a first off-gas stream by separating a slurry bleed stream in a sour slurry stripper to provide the first off-gas stream and a stripped slurry stream. The first off-gas stream is passed to a hydrolysis zone operated to provide a second off-gas stream. The second off-gas stream is scrubbed with an aqueous acidic stream in an ammonia scrubber to provide a third off-gas stream.
摘要:
The invention relates to a catalyst for desulphurizing hydrocarbonaceous gases, which catalyst contains a support material, except for activated carbons and zeolites, and has a silver-containing active mass, wherein the catalyst has a pore structure having a maximum number of pores in a pore diameter range of 6 to 11 nm. The invention further relates to processes for producing such a catalyst, use thereof for desulphurizing hydrocarbonaceous gases, in particular in fuel cell applications, and also a process for desulphurizing hydrocarbonaceous gases.
摘要:
The present invention provides for a method and apparatus for purifying carbon dioxide. Sulfur species are efficiently and effectively removed from the carbon dioxide by a series of steps which include heater/heat exchange means, impurity adsorption means and cooling means.
摘要:
Carbonyl sulfide (COS) from a COS-containing stream (106) is converted in a Claus plant (100) to elemental sulfur (152, 162) by oxidation of a first portion of the COS-containing stream to SO2 and by hydrolysis of a second portion of the COS-containing stream to H2S. In preferred aspects of the inventive subject matter, hydrolysis and/or oxidation of the COS is performed in the reactor furnace (10), while hydrolysis of the COS is performed in the reactor furnace (10), a hydrolysis reactor, and/or a catalytic converter (120, 130, 150).
摘要:
The invention relates to a method for purifying a gaseous flow containing at least hydrogen (H2), carbon monoxide (CO), a metal carbonyl, and at least one impurity selected from oxygen (O2) and unsaturated hydrocarbons. According to said method, the gaseous flow is brought into contact with a first catalytic bed (12) comprising at least one catalyst containing copper, in order to convert at least part of the oxygen and/or at least one unsaturated hydrocarbon in the gaseous flow into at least one catalysis product, at a temperature between 100 °C and 200 °C and at a pressure of at least 10 bar. Furthermore, said gaseous flow is also brought into contact with a second adsorption bed (9) in order to adsorb at least the carbonyl metal.
摘要:
A deodorization apparatus comprises: a case body 2a formed therein with an air-flow passage 2i through which air flows; first and second lamp units 8, 10 disposed in an air-flow passage in the case body and adapted to generate ozone; first, second and third photo-catalyst filters 7, 9, 11 disposed in the air-flow passage in the case body and provided with photo-catalyst filters; and an impregnated carbon disposed on the downstream side of at least one of the first and second lamp units 8, 10 and the photo-catalyst filters and formed by impregnating an activated carbon adsorbing an odor component with at least one component of iron oxide, potassium hydroxide, nickel nitrate. According to this structure, the deodorization effect at the one passing of the contaminated air, in the air-flow passage, containing odor component is improved, the usable life time can be elongated, and the maintenance of the impregnated carbon can be simplified.
摘要:
Carbonyl sulfide and/or hydrogen cyanide contained in a mixed gas are/is converted by contacting the mixed gas with an alkalized chromium oxide-aluminum oxide catalyst in the presence of steam, wherein the mixed gas and the steam at a volume ratio of 0.05≤steam/mixed gas≤0.3 are contacted with the alkalized chromium oxide-aluminum oxide catalyst at a gas hourly space velocity no less than 2000 h-1 at a temperature in the range of 150 °C through 250 °C. In this case, the alkalized chromium oxide-aluminum oxide catalyst is set to have a grain size in the range of 1 mm through 4.5 mm. With this arrangement, since the surface area of a catalyst can be increased to a certain degree, the activity of the catalyst is increased to achieve the high processing speed, while since generation of a side reaction can be suppressed, lowering of the conversion rate of COS and/or HCN caused by the side reaction can be suppressed.