摘要:
A carbonaceous-based metallizing method and apparatus wherein a metallic oxide is converted into a carbon-containing, metallized intermediate that is melted in an induction channel furnace to produce liquid metal from said metallic oxide. In the application of iron ore in the form of fines or concentrate, using low-cost coal will greatly reduce capital and operating costs by virtue of eliminating agglomeration of ore, cokemaking, and blast furnace operation. The liquid iron so produced is efficiently converted into steel in a steelmaking furnace such as a basic oxygen furnace (BOF), especially when it is physically integrated to the induction channel furnace wherein the liquid iron is directly poured into the integrated BOF by the induction channel furnace, producing low-cost steel, little heat loss, and minimum emissions.
摘要:
The present invention deals with the serious pollution problems from electric power plants that burn coal which may be forced to shut down by virtue of their being uneconomical to be retrofitted with expensive pollution controls. The pollutants from coal-burning power stations comprise SO2, NOx, Hg, Particulate Matter, Ash, and CO2. This invention offers a unique and comprehensive solution that makes possible the prevention of the ill-effects currently caused to health and environment while at the same time would also prevent the closure of these badly needed power generation facilities that provide some 50% of the electricity generated in this country. The herein comprehensive solution converts the six mentioned pollutants into valuable products and thus avoids the discharge of such pollutants into the atmosphere.
摘要:
This method deals in recovering energy in-situ from an underground resource and upgrading such resource above ground. It consists of injecting a hot gas to pyrolyze it to produce gases and liquids with high hydrogen content and a residual hot char. The gases and liquids together with the injected hot gas form a mixture of gases and liquids that is brought above ground and treated into a clean mixture of gases and liquids rich in hydrogen and then used as a chemical feedstock and/or transportation fuel. Following the pyrolyzation of the resource, carbon dioxide and air are injected into the residual hot char to convert the CO2 into 2CO+N2, which is brought above ground and treated into a clean lean gas. This lean gas is used to generate efficient electric power, heat the injected gas for pyrolysis, and convert the 2CO+N2 as a feedstock into fertilizer.
摘要:
A method and apparatus for continuously carbonizing materials while co-producing gases in a coking chamber closed to the atmosphere, having a charger at one end comprising a pushing ram surrounding a mandrel that surrounds an air or oxygen injection lance. The other end of the coking chamber collects and separates coke from gases, with coke directed to a closed quenching chamber and gases directed to a cleanup. Thermal energy for converting coal into coke derives from combusting some metallurgical coal by said lance. In the case of producing coke from metallurgical coal, which is expensive because of limited supply, the herein method and apparatus are configured to separately charge a low-cost, abundant, carbonizing material and expensive metallurgical coal so that metallurgical coal surrounds the low-cost carbonizing material, and a lance combusts the low-cost carbonizing material, releasing thermal energy that heats metallurgical coal under reducing conditions, producing specification coke and gases more economically. After cleanup, gases are used as chemical feedstock or fuel. The word “coke” herein used may also be referred to as “charcoal” or “char.”
摘要:
A method and apparatus for gasifying a solid fuel within a pressurized gasifier without a lockhopper, a slurry or pulverization comprising the feeding of said fuel into a charging chamber having a first section equipped with a ram through which a mandrel is disposed, and a second section within which an impervious seal is formed from the solid fuel by the compressive forces generated by said ram and a third section into which the seal is advanced while said ram forms a successive seal in said second section. The seal from said third section is reduced in size and charged into the pressurized gasifier where it is gasified without loss of pressure. The gases produced are utilized to polygenerate products such as transport fuels and electric power, and a fertilizer from waste gas resulting from the combustion of one of the produced gases.
摘要:
A method for recovering energy in-situ from underground resources such as coal and upgrading such energy above ground, comprising a first step consisting of injecting a hot recycling gas through said resource to devolatilize it to produce a raw hydrogen rich gas and an in-situ residual hot char wherein said hydrogen rich gas is brought above ground and is treated to become a cleaned, upgraded hydrogen rich gas serving as a feedstock to make a chemical and/or transportation fuel, and a second step consisting of injecting a waste greenhouse gas like carbon dioxide (CO2) plus an oxidant such as air into said hot char to convert said CO2 into CO+N2 which is brought above ground and treated to form a clean lean gas which can be beneficially used to: (i) generate efficient electric power, (ii) heat the hydrogen rich recycle gas, and (iii) make a needed by-product such as fertilizer.
摘要翻译:一种从诸如煤等地下资源中原位回收能源的方法,其特征在于包括将热回收气体通过所述资源注入脱挥发分以产生富含原氢的气体和原位的第一步骤 残余热焦炭,其中所述富氢气体被置于地面以上并被处理成为清洁的,升级的富氢气体,用作原料以制备化学和/或运输燃料,以及第二步骤,其包括将诸如 二氧化碳(CO 2)和氧化剂如空气进入所述热焦炭以将所述CO 2转化成CO + N 2,所述CO + N 2被置于地面并进行处理以形成干净的贫气,其可有利地用于:(i)产生有效的电力 ,(ii)加热富氢循环气体,和(iii)制备所需的副产物如肥料。
摘要:
A metallizing apparatus which is carbonaceous-based wherein a metallic oxide is converted into a carbon-containing, metallized intermediate that is melted in an induction channel furnace to produce liquid metal from said metallic oxide. In the application of iron ore in the form of fines or concentrate, using low-cost coal will greatly reduce capital and operating costs by virtue of eliminating agglomeration of ore, cokemaking, and blast furnace operation. The liquid iron so produced is efficiently converted into steel in a steelmaking furnace such as a basic oxygen furnace (BOF), especially when it is physically integrated to the induction channel furnace wherein the liquid iron is directly poured into the integrated BOF by the induction channel furnace, producing low-cost steel, little heat loss, and minimum emissions.
摘要:
A carbonaceous-based metallizing method and apparatus wherein a metallic oxide is converted into a carbon-containing, metallized intermediate that is melted in an induction channel furnace to produce liquid metal from said metallic oxide. In the application of iron ore in the form of fines or concentrate, using low-cost coal will greatly reduce capital and operating costs by virtue of eliminating agglomeration of ore, cokemaking, and blast furnace operation. The liquid iron so produced is efficiently converted into steel in a steelmaking furnace such as a basic oxygen furnace (BOF), especially when it is physically integrated to the induction channel furnace wherein the liquid iron is directly poured into the integrated BOF by the induction channel furnace, producing low-cost steel, little heat loss, and minimum emissions.
摘要:
This invention provides a comprehensive solution which comprises the production of a bed of ash-containing hot char via the pyrolysis of coal which generates a hydrogen rich gas that, subsequent to its cleanup, can be synthesized into chemicals and/or transportation fuels, while the hot char is used to: (i) reduce SO2 and NOX to elemental sulfur and to elemental nitrogen, respectively; (ii) react hot char with CO2 to reduce it to CO, a valuable chemical that can be converted into fertilizer or into a fuel gas that can be used for electric or thermal power generation; (iii) trap particulate matter in the bed of char to join the ash in the char to form a combined ash which is eventually converted to inert slag; and (iv) filter the mercury through a portion of the char to prevent it from being emitted into the atmosphere.
摘要:
The present invention consists of an improved method and apparatus to upgrade bitumen in various forms which comprises four main components; namely, a fractionator equipped with a condenser, a heavy gas oil catalytic treater, a catalyst regenerator/gasifier and a gas cleanup assembly. In operation, the bitumen in liquid form is fed to the fractionator for initial separation of fractions with the bulk of the bitumen leaving the bottom of the fractionator in the form of a heavy gas oil which is pumped to the catalytic treater and sprayed on a hot catalyst to crack the heavy gas oil (an endothermic reaction) to release lighter hydrocarbons in the form of H2 rich volatile matter while depositing carbon on the catalyst. The volatile matter from the treater is directed to the fractionator where the condensable fractions are separated from the non-condensable H2 rich gas, a valuable primary gas. The carbon containing catalyst from the treater is recycled to the regenerator/gasifier, and the catalyst after being regenerated (an exothermic reaction) is fed hot to the treater. Various fractions are removed from the fractionator as intermediates in the form of light napthas and light oils. The off-gas from the regenerator/gasifier is directed to a gas cleanup system to produce a valuable secondary gas. Both the primary gas and the secondary gas may be further utilized in the processing of the intermediates produced by the method, the primary gas being a source of H2 and the secondary gas being a source of thermal energy.