摘要:
A method for producing hydrogen and/or other gases from steel plant wastes and waste heat is disclosed. The method comprises the steps of providing molten waste from steel plant like molten slag in a reactor. The molten slag is contacted with water and/or steam in the presence of a reducing agent to form a stream of hydrogen and/or other gases. The hydrogen and/or other gases can then be extracted from the stream of gases from the reactor.
摘要:
Reactors for carrying out a chemical reaction, as well as related components, systems and methods are provided. In accordance with one embodiment, a reactor is provided that includes a furnace and a crucible positioned for heating by the furnace. The crucible may contain a molten salt bath. A downtube is disposed at least partially within the interior crucible along an axis. The downtube includes a conduit having a first end in communication with a carbon source and an outlet at a second end of the conduit for introducing the carbon material into the crucible. At least one opening is formed in the conduit between the first end and the second end to enable circulation of reaction components contained within the crucible through the conduit. An oxidizing material may be introduced through a bottom portion of the crucible in the form of gas bubbles to react with the other materials.
摘要:
Method of combining industrial processes having inherent carbon capture and conversion capabilities offering maximum flexibility, efficiency, and economics while enabling environmentally and sustainably sound practices. Maximum chemical energy is retained throughout feedstock processing. A hybrid thermochemical cycle couples staged reforming with hydrogen production and chlorination. Hydrogen generated is used to upgrade feedstocks including bitumen, shale, coal, and biomass. Residues of upgrading are chlorinated, metals of interest are removed, and the remainder is reacted with ammonia solution and carbon dioxide to form carbonate minerals. The combination provides emissions free production of synthetic crude oil and derivatives, as well as various metals and fertilizers. Sand and carbonate minerals are potentially the only waste streams. Through this novel processing, major carbon dioxide reduction is afforded byminimizing direct oxidation. Supplemental heat to run the reactions is obtained through external means such as concentrated solar, geothermal, or nuclear.
摘要:
The present specification discloses operation of a waste treatment system for treating a feed by bringing the feed into contact with a molten metal in a first vessel. A jet of air is ejected from a lance into the molten metal to react with the molten metal to form a layer of molten slag-oxide. The feed is selected from coal, coal-liquid slurry, biomass, waste-derived material, crude oil, tar sands, shale-derived material, or a combination thereof. The molten metal bath material comprises carbon, silicon, manganese, chromium, sulfur, phosphorus, aluminum and titanium. Exhaust gases evolving from the molten metal and molten slag-oxide layer are directed to a second vessel to treat the exhaust gases to a pre-determined proximate gas molar composition.
摘要:
A process for removing CO2 from a gas containing CO2 by reacting it with a magnesium silicate mineral suspended in a molten salt and additionally a process for converting coal or other fossil fuel to hydrogen by reaction the fossil fuel or coal with water in a molten salt at elevated temperatures in the presence of a magnesium silicate mineral suspended in the molten salt wherein the magnesium silicate reacts with CO2 produced in the reaction, thus removing it from the hydrogen product
摘要:
A method for producing hydrogen and/or other gases from steel plant wastes and waste heat is disclosed. The method comprises the steps of providing molten waste from steel plant like molten slag in a reactor. The molten slag is contacted with water and/or steam in the presence of a reducing agent to form a stream of hydrogen and/or other gases. The hydrogen and/or other gases can then be extracted from the stream of gases from the reactor.
摘要:
Two or more (preferably three) simple single-chamber crucibles contain molten metal and are successively fed hydrocarbon feed to produce hydrogen, then fed oxygen-containing gas to produce CO, then fed hydrocarbon again, etc. Their operation is controlled by a swing valving sequence which connects the crucibles to a hydrogen header when they are producing hydrogen and to a CO header when they are producing CO, and possibly to a vent (or to the CO header) during the transition between H.sub.2 production and CO production (see FIG. 2). Each crucible (FIGS. 3, 4) preferably is in a pressure-tight steel housing, uses segmented refractories for simplicity in construction and reduction of thermal expansion effects and has an inlet lance (sparging tube) for feeding hydrocarbon and an outlet which emits product gases. Both inlet and outlet are preferably located in the head of each crucible. Swing valves are preferably located downstream of product heat-exchangers for lower temperature operation. Minimum dissolved carbon level during occasional cycles can be reduced to oxidize any sulfur in the melt and purge sulfur from the melt. Then vanadium can be periodically purged from the melt by still further oxidation.
摘要:
Apparatus for reforming hydrocarbon fuels by admixing a hydrocarbon and water to form a feedstream, contacting the feedstream with an inorganic salt or mixture of inorganic salts in the molten state, and separating the gaseous effluent generated by this contact. After the hydrogen-containing effluent is removed from the molten salt, means are provided that the latter may be mixed with oxygen at a temperature and pressure sufficient to permit combustion between the oxygen and any residual carbon which may be retained in the salt, after which further means are provided to remove the gaseous reaction products of this combustion.