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WO/1998/050743A1 |
A method and apparatus for heating or cooling a solid material (93) in a process vessel (80) is disclosed. The method includes supplying a working fluid to a vessel which holds a packed bed (93) of the solid material. The method is chara...
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WO/1998/042427A1 |
A process and an apparatus for processing a charge of a solid material under conditions which include high mass flow rate of gas through the apparatus and which produce liquid from the solid material is disclosed. The apparatus includes ...
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WO/1998/039398A1 |
A process for preparing an irreversibly dried coal which utilizes a fluidized bed reactor (10) with a fluidized bed (14) density of from about 20 to about 40 pounds cubic feet which is at a temperature of from about 150 to about 200 °F....
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WO/1998/038266A1 |
A base additive for coal comprising 9-11 % potassium or sodium permanganate or a mixture thereof, 27-33 % sodium or potassium carbonate or a mixture thereof and 54-66 % sodium chloride, potassium chloride or a mixture thereof. This base ...
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WO/1998/033608A1 |
A waste plastic dechlorination apparatus, wherein a dechlorination furnace (1) having an inlet portion (1a) and an outlet portion (1b) for heating and decomposing waste plastics containing vinyl chloride, and a rotary cutter (4) disposed...
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WO/1998/030856A1 |
A reactor (20) and a process for upgrading solid materials, such as coal, having low thermal conductivity are disclosed. The reactor includes an outer shell (10) that defines an internal volume for retaining a packed bed of solid materia...
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WO/1998/028385A1 |
Disclosed is a method for increasing the charring ratio of coal. In manufacturing an ingot iron using the coal, magnesium oxide or limestone is used as an additive for charring the coal. The additive increases the charring ratio of the c...
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WO/1998/018886A1 |
The invention described herein relates to a process for treating carbonaceous material wherein the resulting product is resistant to undesired combustion. According to the process, carbonaceaous material is treated with a gaseous mixture...
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WO/1998/012490A1 |
A process is described whereby wet coal may be dehydrated and inhibited against rehydration by immersing in a bath of molten paraffin hydrocarbon (14) for a sufficient period of time to evaporate and expel inherent water from the coal. T...
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WO/1998/010035A1 |
The invention concerns a system for upgrading recuperative organic matter, in particular recuperative wood, comprising a leaching tunnel (100), a carbonising tunnel (200) and a cooling tunnel (300), maintained at thermic and pressure con...
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WO/1998/003616A1 |
An additive is sprayed into the combustion chambers of heating and waste incineration plants to prevent high temperature corrosion and to reduce the fly ash proportion in the exhaust gas. Also disclosed is a process for preventing high t...
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WO/1998/001517A1 |
Disclosed is a method to reduce oxidative deterioration of bulk materials. Preferred embodiments of bulk materials include solid fuel materials, such as coal, and bulk food products. The method includes contacting a bulk material with a ...
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WO/1997/038064A1 |
A process for the recovery of coal particles from coal tailings is described. The process comprises the steps of initially treating the coal tailings to separate therefrom a proportion of the coal particles having sizes in a specified ra...
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WO/1997/031222A1 |
The invention relates to a process for generating superheated steam (H) for operating a steam power station by burning lignite in a furnace (F) of a power station boiler (K) and extracting the flue gases, using their heat. Here, the flue...
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WO/1997/025391A1 |
The invention is in the field of power engineering, specifically the thermal processing of coal, and can be used in thermal power plants for refining low-grade coal to produce environmentally clean synthesis gas. To enhance the fuel's re...
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WO/1997/024414A1 |
A method for manufacturing coal agglomerates for use in a direct smelting reducing furnace is disclosed, in which a fine coal is agglomerated at a high temperature in a simple manner, or anthracite or low free swelling coal having a low ...
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WO/1997/011139A1 |
The flue dust conveyed by the flue gas in the combustion plant of a coal-fired power station still contains up to 50 % combustible material. In order to attain high efficiency by full burning, in modern coal-fired power stations with sla...
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WO/1997/009398A2 |
The invention relates to electrostatic separation of coal from toxic and pyritic elements and ash compounds. More particularly this invention relates to separation of coal from refuse material by imparting opposite electrostatic charges ...
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WO/1997/007185A1 |
A method of increasing the utility of low rank coal of high moisture content by stabilizing essential physical properties of the coal, following its drying by known methods, which without stabilization render it unsuitable for transporta...
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WO/1997/006227A1 |
The present invention relates to various apparatuses and processes for treating carbonaceous materials to remove by-products therefrom. More particularly, the present invention relates to the treatment of carbonaceous materials by inject...
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WO/1997/002363A1 |
A solid compound having a volume average particle diameter of not more than 5 'mu'm, for example, silicon dioxide, aluminum oxide, calcium carbonate, or silicon carbide, is deposited on a dry pulverized coal obtained from a feed coal hav...
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WO/1996/041070A1 |
A process for enhancing the fuel form, raising the energy content, and lowering the level of impurities of low rank coals and/or carbonaceous wastes, like Municipal Solid Waste (MSW), Refuse Derived Fuel (RDF), and sewage sludge, by prov...
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WO/1996/035092A1 |
A rotary calciner (1) including an elongated shell having a first diameter extending from the discharge end (11) back to a transition zone (5) and a second larger diameter extending from the transition zone (5) back toward the feed end, ...
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WO/1996/025232A1 |
An apparatus for treating a slurry with ultrasound to improve separation based upon specific gravity comprises a plurality of modular conduit units (10, 11, 12) having substantially vertical walls defining a flow space through which a sl...
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WO/1996/010093A1 |
The transportability of dry pulverized coal originating from raw coal having an average HGI of 30 or above can be improved by adhering an organic compound which has a polar group and is substantially water-soluble to the pulverized coal,...
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WO/1995/027766A1 |
A process for producing needle coke for graphite electrodes from a starting material prepared by adhering, to 100 parts by weight of coke, 0.03 - 16 parts by weight of a substance of which the softening or melting point after being heat ...
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WO/1995/020022A1 |
A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to sub...
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WO/1995/011287A1 |
In the corrosion-proofing process according to the invention for heating boilers in refuse and hazardous waste incineration plants, in which corrosion-proofing inorganic compounds are injected into the combustion chamber or the flue gas ...
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WO/1995/002656A1 |
Lignite or peat are ground to particle sizes below 50 mesh and then subjected to washing in a detergent solution, where the inert materials and the unbound ash are removed. Following washing, they are treated in an acid bath containing a...
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WO/1994/029411A1 |
A method of removing organic sulfur from coal in which the coal is dispersed in perchloroethylene in the presence of a catalyst which is effective to disrupt C-S bonds and thereby liberate sulfur species from the coal. The processed coal...
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WO/1994/022989A1 |
A method and apparatus for removing sulfur in coal prior to combustion. In a fluid bed reactor (10), coal particles pass by means (11) through a gaseous medium of air and superheated steam in a fluidized state under pressure. A continuou...
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WO/1994/019431A1 |
A method and apparatus for desulfurizing coal is provided. The method involves combining non-pulverized sulfur containing coal with an adsorbent material, such as aluminum oxide, in a vessel, irradiating the coal/adsorbent combination wi...
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WO/1994/017332A2 |
In this process for more complete burning of waste, the substantially plastic waste is burned in a revolving tubular kiln (9) with the admixture of at least one finely ground solid additive (3, 4, 5) which contains at least one component...
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WO/1994/012838A1 |
The invention is an integrated process for drying and briquetting coal (21) utilizes a conditioner (7) to output dried coal having a selected moisture content, temperature, mean particulate size and size distribution for briquetting. The...
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WO/1994/008193A1 |
The present invention is concerned with upgrading the BTU values of carbonaceous materials. The carbonaceous material is introduced into a heat exchanger (20) and is injected with gas such as an inert gas or carbon dioxide at a high pres...
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WO/1994/004635A1 |
A process for bonding halogens to solids in the combustion of fossil fuels, rubbish and the like with the following steps: the moistening of the fossil fuels, rubbish or the like; the addition of basic substances, especially CaCO3 or MgC...
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WO/1994/004634A1 |
A fuel coal processing system is provided which consists of a centrifugal type pulverizer which consists of a pair of opposed multicup concentric ring rotors (5) and (6), a coal purifier (12) which consists of an annular ring nozzle surr...
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WO/1994/000713A1 |
A method for converting a hydrate-forming gas (2) into a hydrate (5), as the gas (2) combines with a hydrate-forming liquid (3) which is supplied to the gas (2) in finely dispersed shape at hydrate generating pressure and temperature con...
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WO/1993/025637A1 |
A method of desulfurizing a petroleum liquid containing organosulfur molecules is disclosed. The method relies upon the use of an aqueous biocatalytic agent comprising, in preferred embodiments, a substantially cell free extract of a mic...
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WO/1993/024595A1 |
A method of upgrading characteristics of coke by forming a carbon coating on the pores of the coke by hydrocarbon cracking. A modified coke dry quench technique is used to enable simultaneous cooling and upgrading in the quench chamber w...
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WO/1993/014032A1 |
Methods and compositions are provided for increasing packed bulk density of coal, whose surface moisture varies from 5 to 15 weight percent, to desired levels in the range of 45 to 50 1bs./cu.ft., and for controlling and maintaining the ...
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WO/1993/005128A1 |
The invention concerns a coal-fired power station with a dry firing installation (6), the flue gases from which are passed (5) through an NO¿x?-removal unit (20), an air preheater (21), a dust separator (22) and a desulphurization unit ...
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WO/1992/018233A2 |
A process is provided for making a free flowing granular product from moisture laden caked coal fines, such as wet cake, by mixing a water immiscible substance, such as oil, with the caked coal, preferably under low shear forces for a pe...
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WO/1992/014801A1 |
The invention concerns a process for drying hydrous solid fuels, in particular raw brown coals, in a drying container of a heat-generating plant. The aim of the invention is to achieve substantial reduction of the CO�2? emission per us...
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WO/1992/014802A1 |
The invention concerns a process for dressing brown coal for combined gas and steam processes in heat-generating installations. The aim of the invention is to achieve substantial reduction of the CO�2? emission per useful effect unit b...
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WO/1992/009671A1 |
This invention pertains to a method and apparatus for rapid heat transfer using surface-to-surface heat transfer of a solid or semi-solid feedstock against an inner surface of a containment vessel. The vessel is torus or helically shaped...
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WO/1992/004414A1 |
Method for manufacturing carbon black, characterized in that one starts from an organic material, this material is compressed in a hydraulic press (1) subjected to a biochemical pre-processing in a magnetron (2) whereby a strongly increa...
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WO/1992/003522A1 |
In a process for producing and compacting a fuel, a coal fraction, a waste fraction consisting of organic residues from industrial and domestic waste and a chalk fraction of unslaked lime are used. To reduce the quantity of lime required...
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WO/1991/011502A1 |
An improved solid fuel and improved liquid fuel are obtained from a feed coal and feed oil by a method which comprises the steps of: (a) forming microagglomerates of finely divided coal; (b) combining said microagglomerates generated fro...
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WO/1991/007478A1 |
Organic sulfur is removed from coal by extraction with a water/methanol/carbon dioxide mixture under supercritical conditions of temperature and pressure. The preferred solvent used for extraction has the following composition (expressed...
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