991results about "Solid fuels" patented technology

The invention relates to the technical field of dechlorination devices, and provides a high-chlorine coal washing dechlorination leaching device which comprises a dechlorination tank body provided with a washing dechlorination area, and a circulation opening is formed in the bottom of the washing dechlorination area; the conveying part is circularly arranged on the dechlorination tank body, the plurality of push plates are arranged on the conveying part, and the push plates are configured to move along the bottom of the washing dechlorination area under the driving of the conveying part; the screen piece is arranged on the circulation opening; the first spray pipe is arranged on the dechlorination tank body and located below the screen piece, the first spray pipe is provided with a first nozzle, and the first nozzle faces the screen piece. According to the technical scheme, the problems that in the prior art, the dechlorination effect needs to be improved when a traditional kettle body is subjected to water washing dechlorination, and a filter screen part in the kettle body is prone to being blocked are solved.

Certain exemplary embodiments can provide systems and / or methods for producing dried biomass materials, such as from bales of biomass. Biomass materials can be converted into, e.g., pellets, briquettes, cubes, and / or other products with dried and / or densified states. These dried, densified products can be used for, e.g., bioenergy and / or animal feed applications.

The invention relates to the technical field of coal dechlorination, and provides a chain plate type leaching dechlorination system which comprises an immersion pool, the rack is divided into an immersion section and a leaching section, the immersion section is located in the immersion pool, and one end of the leaching section is located outside the immersion pool; the chain plate conveying belt is circularly and movably arranged on the rack and provided with a plurality of first partition plates, and the first partition plates are evenly distributed at intervals; the number of the guard plates is two, and the two guard plates are arranged on the two sides of the rack. The multiple material containing plates are arranged relative to the chain plate conveying belt in a swinging mode and located between the adjacent first partition plates. A material containing space is formed among the adjacent first partition plates, the two protection plates and the material containing plate. The material containing plate swings to enable the material containing space to swing; after the chain plate conveying belt circularly moves, the plurality of material containing spaces are sequentially separated from the immersion pool. By means of the technical scheme, the problems that in the prior art, coal can only be conveyed outwards after being dechlorinated in a dechlorination pool, and the overall production efficiency is low are solved.

The invention relates to the technical field of biomass fuel processing, and discloses biomass fuel production and processing equipment, which comprises a granulation box body, a flat die rotationally connected in the granulation box body, a compression roller arranged above the flat die, a rotating assembly mounted at the bottom of the granulation box body and used for driving the flat die to rotate, and a control assembly mounted at the bottom of the granulation box body and used for controlling the compression roller to rotate, the telescopic assembly is mounted on the side wall of the granulating box body and is used for driving the compression roller to move up and down and adjusting the distance between the flat die and the compression roller; and the spacing control system is in communication connection with the control end of the telescopic assembly and is used for accurately controlling the spacing between the flat die and the compression roller. The distance control system obtains raw material characteristics, equipment states and particle quality data in real time, constructs a multi-dimensional evaluation model and dynamically adjusts the distance between the pressing roller and the flat die, the problems that manual adjustment is low in precision and high in machine blockage risk are solved, intelligent and accurate control is achieved, safe operation of equipment is guaranteed, and the particle quality is optimized.

The present invention relates to the technical field of municipal sludge and industrial sludge treatment methods. Disclosed is a hydrothermal carbonization-based method for comprehensively treating iron-containing sludge and straw, comprising the following steps: 1) crushing and sieving straw, primarily dehydrating iron-containing sludge, and adding a catalyst for catalytic wet oxidation treatment; 2) adding wet-oxidized iron-containing sludge and a crushed and sieved fiber to a raw material storage tank and adding a dehydrating agent for dehydration treatment; 3) preheating a raw material conveying tank and then feeding the material into a reactor for a hydrothermal carbonization reaction; 4) collecting the resulting biochar slurry to a collecting tank for cooling; and 5) adding an appropriate amount of pulverized coal to the material and then carrying out plate press dehydration, or directly carrying out plate press dehydration, the material being used as a solid fuel. The present invention integrates two techniques, i.e., anaerobic digestion and hydrothermal carbonization, for sludge treatment, and the process is optimized from material and energy balance perspectives, so that the solid fuel and biochar substances are generated while sludge reduction is realized; moreover, the operation cost of the process is reduced, and the generated hydrothermal carbon can be either returned to the field for use or be used as an additive to promote anaerobic digestion, and also exhibits magnetism and can be recycled.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The invention discloses a method for comprehensively recycling electrolytic aluminum carbon residues, and relates to the technical field of comprehensive recycling of waste materials. The method for comprehensively recycling the electrolytic aluminum carbon residues comprises the following steps of: breaking the carbon residues into 0.1-1cm particles by a hammer, carrying out wet ball milling under the condition of adding a flotation agent, and separating carbon powder on the upper layer and gray regenerated cryolite on the bottom layer of slurry through flotation equipment, wherein the fineness is 40-100 meshes, and the carbon content is less than 1%; the preparation method comprises the following steps: adding water into cryolite to prepare slurry, adding calcium oxide or calcium hydroxide, heating, stirring and reacting for 1-3 hours, and carrying out filter pressing to obtain filtrate and filter residues which are calcium fluoride and a sodium metaaluminate solution; the purity of the calcium fluoride powder is greater than 85%; and introducing hydrochloric acid into the filtrate, stirring and adjusting the pH to 7-9 to obtain aluminum hydroxide slurry, filtering and washing to obtain aluminum hydroxide, and drying to obtain the aluminum hydroxide with the purity of more than 95%.

The invention relates to a method for preparing ultra-pure coal through combination of grinding and flotation. The method comprises the following steps: carrying out primary surface modification and flotation to remove most of gangue; fine silt on the surfaces of the coal particles is removed through scrubbing and ore grinding, and the hydrophobicity of the coal is improved by combining secondary surface modification and flotation; the coal quality is judged according to the ash content of secondary flotation clean coal, if the ash content is larger than 3%, dissociation ore grinding and grading are conducted, and it is guaranteed that coal and gangue are fully dissociated; double-emulsion surface modification is adopted to enhance the dispersibility of the agent, and finally, the ultra-pure coal with the ash content smaller than 1% is obtained through three-time flotation and four-time flotation. Through the synergistic effect of scrubbing ore grinding, dissociation ore grinding and multi-section flotation, the dissociation efficiency and flotation selectivity of coal and gangue are effectively improved, the method adapts to coal quality fluctuation, and the yield of ultra-pure coal is increased.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The present disclosure generally relates to compositions and methods of simultaneously making two unique biointermediates from a single lignocellulosic biomass feedstock, including a hydrophobic biohydrocarbon and a water insoluble hydrophilic cellulosic biopolymer for use in the production of renewable fuels, chemicals, and other carbon neutral materials commonly derived from petroleum and other fossil resources.

The invention provides a method for preparing carbon fuel from corn straw based on a functional composite binder, and belongs to the technical field of biomass solid fuel preparation. The preparation method comprises the following steps: uniformly mixing corn stalk charcoal powder with a functional composite binder to obtain a mixture, and then carrying out hot-pressing activation molding to obtain the corn stalk charcoal fuel. The functional composite binder comprises the following raw materials: phosphoric acid, polysilicic acid, polyethylene and sodium lignin sulfonate; the addition amount of the functional composite binder in the corn stalk carbon powder is 10-15 wt.%. According to the method, the controllability of the quality of the raw material carbon is greatly improved, the functional composite binder is adopted, the forming density, falling and breaking resistance and durability of the carbon fuel are improved, the process stability and repeatability are high, and a foundation is laid for large-scale production.

The invention provides a sludge-based composite fuel as well as a preparation method and application thereof. The sludge-based composite fuel is prepared from the following raw materials in percentage: 40-60% of dewatered sludge, 20-40% of biomass powder, 3-8% of a nano catalyst and 2-5% of a composite adhesive. According to the sludge-based composite fuel, sludge, biomass and other fuels are mixed according to a certain proportion, the nano-catalyst is added to improve the combustion performance of the sludge fuel, the composite adhesive enhances the forming strength and waterproofness of the fuel, the component proportion and process conditions are optimized, and the sludge-based composite fuel is prepared. The problems that traditional sludge fuel is low in heat value, poor in combustion stability, high in pollutant emission and insufficient in forming storage performance are solved.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The utility model discloses a biomass forming system and a solid waste gasification melting treatment system. The forming system comprises a stock bin, a briquetting device, a circular mold mechanism and a frame body, the circular mold mechanism comprises a plurality of forming modules and triangular fixing blocks distributed between the adjacent forming modules at intervals. A driving motor is arranged in the frame body; the forming module is a variable cross-section through hole and is formed by splicing symmetrically arranged half-wedge-shaped grooves; the large-section end of the forming module is a feeding hole, and the small-section end of the forming module is a discharging hole. The sectional area of the discharging hole is smaller than that of the feeding hole. The treatment system comprises the biomass forming system, a drying system, a sealed feeding system, a gasification melting system and a combustion system. According to the utility model, the high-strength biomass briquette is obtained and is used for a solid waste gasification and melting treatment system to meet the requirements of a gasification and melting furnace.

The invention discloses a preparation method of sludge and biomass blended and cured fuel particles based on ultrasonic synergy. The fuel particles comprise 30-40 wt% of dewatered sludge, 60-70 wt% of biomass and 0.5-3.5 wt% of a composite additive, the composite additive is Ca (OH) 2, sodium lignin sulfonate and Fe2 (SO4) 3 in a mass ratio of 2: 1: 0.5; the process comprises the following steps: biomass raw material pretreatment, sludge gradient drying, carbonization ultrasonic reaming, additive injection, ultrasonic blending modification, low-temperature compression molding, low-temperature maintenance and finished product packaging. The method has the advantages of being small in binder dosage, high in production efficiency and low in cost.

The invention relates to the field of comprehensive utilization of biomass energy, and particularly discloses a process for preparing biological coal based on atmospheric distillation of biochar and biological oil, which comprises the following steps: performing atmospheric distillation on unpickled biochar or pickled biochar and biological oil to finally obtain light fraction and biological coal; biochar which is not subjected to acid pickling or biochar subjected to acid pickling serves as an in-situ catalyst, rich pores and oxygen-containing functional groups of the biochar can synergistically catalyze bio-oil to be subjected to condensation polymerization such as esterification and etherification, and finally the prepared bio-coal is good in combustion performance and high in productivity; the process is simple and controllable, and large-scale industrial production is expected to be carried out.

The invention belongs to the technical field of biomass granulators, particularly relates to a granulation device for biomass particle production, and aims to solve the problems that iron slag is not easy to remove, the granulation efficiency is low and heat supply is not uniform in the prior art. A slag removal mechanism for removing iron slag and a granulation mechanism for completing biomass material granulation are respectively arranged on the outer walls of the crusher and the granulator. After biomass materials are put into the pulverizer to be pulverized, iron slag can be removed as much as possible under the action of the slag removal mechanism, the slag removal difficulty is reduced, the quality of biomass particles is prevented from being affected, and the granulation equipment is well protected; the purified biomass material can be subjected to double-sided granulation under the action of the granulation mechanism, the granulation range is expanded, the granulation efficiency is improved, heat supply is uniform, and the quality of biomass particles is improved.

The invention belongs to the field of preparation of high-end carbon materials, and relates to a method for desulfurizing high-sulfur petroleum coke. The core of the invention is to construct a'desulfurization-acidification-regeneration 'three-step closed cycle system. The system takes magnesium oxide as a circulating medium, firstly magnesium oxide reacts with sulfur in petroleum coke at a high temperature to be converted into magnesium sulfide, then sulfur is released and recovered through an acidification step, meanwhile magnesium is converted into an intermediate product magnesium hydroxide, and finally, the magnesium medium is recovered to be active through a thermal regeneration step, magnesium oxide is obtained, and circulation is completed.

The present invention describes an integrated system, apparatus and method for de- alkalizing lignocellulosic material and producing bioproducts. Particularly, the system produces de-alkalized lignocellulosic feedstock which can be used in various downstream bioproducts, such as formation of biofuel, biogas and biochemicals. Among others, the system comprises a slurry-making subsystem for combining lignocellulosic pre-treated particles with a water mixture comprise of water and a chemical agent to obtain a slurry; an ultrasonic treatment subsystem for the disruption of cellular structures, loosening of lignocellulosic matrix, removing and neutralizing alkali at the cellular level of the lignocellulosic material in the slurry; a hydrodynamic cavitation subsystem for high-shear mechanical breakdown of the lignocellulosic material at the cellular level in the slurry; and a direct steam injection subsystem in connection with the slurry-making subsystem and / or the hydrodynamic cavitation subsystem to achieve hydrostatic cavitation and alkali neutralization in the slurry.

The solvated metal particle-coating system includes a metal additive and a polar outer-sphere electron transferring solvent. The metal additive is solvated in the polar outer-sphere electron transferring solvent. The polar outer-sphere electron transferring solvent may include liquid ammonia, methylamine, and / or hexamethylphosphoramide. The metal additive may include an alkali metal and / or an alkaline earth metal. The solvated metal additive within the polar outer-sphere electron transferring solvent may be used to coat a metal particle and / or a metalloid particle as a layer. As the polar outer-sphere electron transferring solvent evaporates, the solvated metal additive is coupled to the metal particle and / or the metalloid particle.

A thermochemical energy conversion unit includes a heat expansion assembly including a reactor configured to receive a biomass and convert the biomass into a burnable gas having undesirable materials therein and a biochar. The heat expansion assembly also includes a heat expansion discharge pipe configured to discharge the burnable gas from the heat expansion assembly. The thermochemical energy conversion unit also includes a gas scrubber assembly operatively connected to the heat expansion assembly and configured to receive the burnable gas therefrom and to remove the undesirable materials from the burnable gas. The gas scrubber assembly includes a scrubber discharge pipe configured to discharge the burnable gas from the gas scrubber assembly. The heat expansion assembly and the gas scrubber assembly are configured to be continuously fluidly connected from the heat expansion discharge pipe to the scrubber discharge pipe for generating a continuous flow of the burnable gas therealong.

To provide a solid fuel which does not solidify during heating and mixing, can be suitably prepared, and can sufficiently maintain its shape during combustion.SOLUTION: The solid fuel contains at least one compound (A) selected from the group consisting of a polyalkylene glycol having a ≤ 4 c alkylene group, an alkyl ether of a (poly) alkylene glycol having a ≤ 4 c alkylene group and an aryl ether of a (poly) alkylene glycol having a ≤ 4 c alkylene group.SELECTED DRAWING: None

This application relates to a biochar reactor (100) for producing biochar (BC). The biochar reactor comprises a horizontal reactor chamber (102), a receiver (104) for receiving (472) biomass (BM) into the biochar reactor, a pyrolysis unit (108) for pyrolysis (480) the received biomass to produce biochar, a cooler (114) for cooling (488) the produced biochar, and a controller (346) for controlling the biochar reactor. The pyrolysis unit comprises at least one pyrolysis unit section (110), each pyrolysis unit section (110) configured to pyrolysis biomass by using a specific temperature range for that section. The biochar reactor is configured to flow hot gas (HG) through each pyrolysis unit section (110) to pyrolysis the biomass at a process temperature (T1, T2) within the section-specific temperature range of the pyrolysis unit section (110).

A method of capturing and disposing of fats, oil and / or grease (“FOG”) is disclosed. The method includes: providing a porous container formed of a porous fabric, wherein the porous container is filled with an absorbent material capable of absorbing a quantity of the fats, oil, and / or grease through the porous fabric of the porous container; placing the porous container and the absorbent material contained therein in a grease trap; allowing the grease trap to fill up with water and a mixture of fats, oil, and / or grease; removing the fats, oil, and / or grease from the grease trap after a period of time, while the water remains in the grease trap; and transporting the fats, oil, and / or grease.

The present invention relates to a method for preparing a biodegradable rubber article, comprising the step of adding HTC lignin to a rubber composition containing at least one rubber component, the use of HTC lignin to promote the biodegradation of the rubber article, and each of the rubber articles.

To provide a biomass solid fuel capable of suppressing dust scattering.SOLUTION: A biomass solid fuel includes a biomass and a mineral oil.SELECTED DRAWING: None

The present invention easily yields, in a short time, a gas consisting mainly of high-concentration methane, by gasifying a yielded biocoal carbonization product. In this subcritical-water treatment device, a first-stage treatment at 150-220°C for a predetermined and prescribed treatment time is set in a first-stage temperature range not higher than 220°C, and a second-stage treatment at 110-130°C for a predetermined and prescribed treatment time is set in a second-stage temperature range not higher than 130°C. In the first-stage treatment, low-grade coal as a raw material to be treated is deprived of moisture to form voids in a volume amount of 20% or larger per unit volume of the low-grade coal, and molten / liquefied components are formed from some of the low-grade coal. In the second-stage treatment, the molten / liquefied components are solidified in the voids and caused to adhere to components in the other portions that have not been melted or liquefied, thereby filling the voids and yielding a biocoal carbonization product having a void content of 9% or less with respect to the entire volume. This device for utilizing reformed low-grade coal is equipped with a gasification means for methanating the biocoal carbonization product, the gasification means gasifying, in a non-oxidization state, the reformed low-grade coal yielded from a bio-based carbonization product to yield methane.

The utility model relates to the technical field of combustion particle production, and discloses a combustion particle cutting mechanism which comprises a cutting ring, the cutting ring is movably arranged on the outer wall of a biomass granulator, a plurality of extrusion holes are formed in the outer wall of the biomass granulator, a connecting plate is detachably arranged on the right side of the outer wall of the cutting ring, and a plurality of extrusion holes are formed in the connecting plate. An electric push rod is fixed to the right side of the biomass granulator, a single-chip microcomputer is fixed to the electric push rod and electrically connected with the electric push rod, and one end of a telescopic rod of the electric push rod is fixedly connected with the bottom face of the connecting plate. According to the combustion particle cutting device, the cutting ring, the connecting plate and the electric push rod are used in cooperation, efficient and even cutting of combustion particles is achieved, the production efficiency is improved, the quality and consistency of the combustion particles are guaranteed, and waste caused by uneven cutting is reduced.

The present invention relates to (1) a method for producing biochar having bio stimulating effects, (2) biochar that has been produced to having increased bio stimulating effects, (3) a method for capturing material extracted from biochar and (4) biochar extracts, comprising desired compounds extracted from biochar and suspended in an extract solution. The methods above all involve obtaining a particular biomass source and pyrolyzing the biomass source under specific conditions to increase the bio stimulating effects of the biochar. The method for capturing the material extracted from the biochar produced to have such stimulating effects includes contacting the biochar with a treating liquid, separating the biochar from the biochar extract, collecting the biochar extract from which the biochar has been separated and resuspending the biochar extract in an modified aqueous solution for further use and / or processing separate from, or prior to, disposal. The biochai" extract suspended in solution then includes desired compounds (a) at least 0.1 ppm of one or more of the following phenylpropanoid, phenylalanine, flavonoids, sterols, terpenes, terpenoids, tannins, coumarins, benzaldehydes and phenols; (b) at least 0.1 g / L of humics, fulvics or a combination of both humics and fulvics and / or (c) one or more of the following salicylic acid, jasmonic acid, abscisic acid, cytokinin, gibberellic acid and ethylene, by way of example.

The present technology provides compositions that include at least about 98 weight percent ("wt%") n-paraffins which, among other surprising features, may be suitable for use as a diesel fuel, an aviation fuel, a jet fuel blendstock, a blendstock to reduce the cloud point of a diesel fuel, a fuel for portable heaters, and / or as a charcoal lighter fluid. The composition includes at least about 98 wt% C7-C12 n-paraffins, where at least about 10 wt% of composition includes n-decane, at least about 20 wt% of the composition includes n-dodecane, and at least about 75 wt% of the composition includes even carbon number paraffins. The composition also includes less about 0.1 wt% oxygenates and less than about 0.1 wt % aromatics. The composition may be produced by a process that includes hydrotreating a biorenewable feedstock comprising at least one of palm kernel oil, coconut oil, babassu oil, microbial oil, or algal oil.