24 results about "Torrefaction" patented technology

A seal assembly is provided that transitions from an expanded configuration to a retracted configuration. In the expanded configuration, the seal assembly forms a non-permeable seal between a rotatable rigid body and a non-rotatable rigid body, the non-permeable seal preventing the entry of oxygen into a reactor drum having a low oxygen environment and / or leakage of gases produced in the low oxygen environment of the reactor drum to the surrounding environment. In the retracted configuration, the rotatable rigid body is secured relative to the non-rotatable rigid body such that relative rotation is prevented. The first rigid body may be translatable relative to the second rigid body to reduce a length of the seal assembly and facilitate rapid removal and / or replacement of the seal assembly from between adjacent components of a torrefaction, gasification, or pyrolysis system.

A fluidized bed reactor for biomass treatment comprising a vessel extending in a first direction from a first end to a second end, an inlet at the first end of the vessel for feeding biomass particles into the vessel, an outlet at the second end of the vessel for outputting processed biomass, a first fluid inlet independently activatable to deliver a first volume of a gas in a second direction into a first region of the vessel, and a second fluid inlet spaced apart from the first fluid inlet in the first direction and independently activatable to deliver a second volume of the gas in the second direction into a second region of the vessel, the second region adjacent the first region.

A novel biomass baking coupled with denitrification agent pyrolysis reactor and system includes a housing with a heating chamber on its inner wall, the heating chamber being connected to a medium inlet and a medium outlet. A dual-shaft stirring system is installed inside the housing, comprising two hollow stirring drums rotatably connected to the inner wall of the housing. Each hollow stirring drum has spiral blades on its exterior, and a heating device is installed inside both hollow stirring drums. This invention, by combining biomass baking and ammonium carbamate pyrolysis, generates diluted ammonia gas. This diluted ammonia gas diffuses and mixes better in the boiler than pure NH3, reducing the amount of ammonia gas used for denitrification and preventing ammonia escape. Furthermore, the biomass baking process generates gases such as H2O, H2, CO, CO2, and CH4, which are injected into the boiler along with the ammonia gas, lowering the local temperature and creating a fuel-rich, oxygen-depleted environment, thus reducing NOx production.

Embodiments of the present invention provide a device for torrefaction of a raw material, such as a biomass. The device includes a rotating cylinder with a number of baffles and stiffener to rotate and stir the raw material, performing torrefaction in partially oxidative atmosphere. The torrefaction process takes part inside the long multiple reactors of a rotary drum, that the timing of the material to be fed is not particularly dependent on the timing or instances of outputting of torrefied material, because some of the reactors maytorrefy the material (e.g., 6 out of 8), while some of the last reactors may cool down the torrefied material (e.g., 2 out of 8), ensuring continuous process.

A method for providing raw material for an industrial process, in particular for steel production, the method including torrefying a torrefaction material, which contains biomass, in a reactor by thermochemically treating the torrefaction material at 200° C. to 600° C., to obtain bio coal, extracting the bio coal from the reactor at a first temperature of up to 600° C., providing bulk materials at a second temperature between 0° C. and 100° C., mixing bio coal with bulk material, thereby cooling down the bio coal with the bulk material and obtaining a mixture of bulk material and bio coal at a third temperature, below the self-ignition temperature of the mixture, and using the mixture to provide the raw material for the industrial process.

The granulation apparatus (100) according to the present application allows for the production of solid recovered fuel pellets from municipal solid waste without the need to separate the constituents of the municipal solid waste prior to starting the granulation process. Thus, a larger amount of municipal solid waste can actually be used for the production of solid recovered fuel pellets. The granulation apparatus (100) and method according to the present application can be used, inter alia, for the production of solid recovered fuel pellets which can be used for the production of a synthesis gas rich in hydrogen and / or carbon dioxide by treating the torrefied solid recovered fuel pellets with a subsequent gas.

A continuous-feed rotary reactor system, for pyrolysis and torrefaction, said reactor comprising: an auger-based hopper system, to resolve bridging of waste during feeding, said hopper system comprising an input hopper (H1, H2), being a two-step hopper (H1, H2), for receiving input feed; a first combinatorial airlock valve system (AV1, AV2) forming an airlock feeding system, to bridge transfer of feed, a reactor (R), containing a carbon removal mechanism (CRM) with a second combinatorial airlock valve system (AV3, AV4), said carbon removal mechanism comprising at least a carbon removal screw configured to receive said carbon char, to process said carbon char, and to output biochar, alternative charcoal, feedstock for bitumen modifier, said carbon removal mechanism (CRM) comprising an auger screw mechanism, and an airtight collection mechanism, which comprises the second combinatorial airlock valve system (AV3, AV4), to manipulate residence of time of said carbon char in said reactor.

Flexible Device and Method for the Valorization of Biomass and Waste by Roasting and Hydrothermal Carbonization. The invention relates to a flexible system and method for the thermoconversion of biomass by roasting or hydrothermal carbonization of all types of biomass, depending on the biomass moisture content. The present invention relates to the technical field of the thermoconversion of biomass and waste to produce energy and / or materials. The invention will find particular application for the valorization of sewage sludge, manure, and driftwood waste, the moisture content of which can vary considerably. Figure for the abstract: Fig. 1

The torrefaction unit 1 comprises at least one multiple hearth furnace 2 which is heated by a heat transfer fluid 16 comprising hot water taken from a water space 21 of a steam drum 11. The heat transfer fluid 16 is guided through a water circuit 20 to a heating system 19 of the at least one multiple hearth furnace 2. This means the multiple hearth furnace 2 is heated to a torrefaction temperature indirectly by the use of hot water as heat transfer fluid 16. This is environmentally advantageous. The torrefaction gas 3 created by the torrefaction of material comprising biomass such as municipal solid waste is preferably partially oxidized in a partial oxidation reactor 23 for creating syngas. Preferably, a part of the thermal energy of the syngas is used in an evaporator 9 and / or a superheater 13 to heat water and / or steam and / or to evaporate water. The evaporated water is preferably guided to a steam space 22 of the steam drum 11 and can, thus, be used to heat the heat transfer fluid 16. The partial oxidation reactor 23 and the temperature of the heat transfer fluid 16 can be controlled independently allowing to one single partial oxidation reactor 23 for at least two multiple hearth furnaces 2.

Device for processing non-torrefied fibrous carbonaceous feedstocks into a burner feed for a zip-flow gasifier, comprising a mechanical grinding and classifying device, wherein the grinding and classifying device is upstream of a pressure inlet and burner feed device of the zip-flow gasifier and is configured to mechanically grind and classify the feedstocks without prior torrefaction, wherein the grinding and classifying device has a classifying or separating device for limiting, separating, removing or recirculating oversized, long-fibered, splinter-shaped, needle-shaped, foil-like or agglomerated components, so that a burner feed with a limited coarse fraction and a limited proportion of elongated or fibrous contaminants can be provided, and wherein the burner feed can be fed to the pressure inlet and burner feed device and is suitable for pressure inlet,Suitable for conveying with high solids loading and burner input into the pressurized entrained flow carburetor.

The present application relates to the field of functional materials, energy conversion and environmental protection technology, and more particularly to a biomass baking-gasification chemical chain water circulation hydrogen production method, which is used for biomass resource cascade utilization and hydrogen-rich syngas production. In the baking stage, the catalyst is mixed with biomass to absorb the moisture therein and release and utilize the moisture in the gasification process. The present application provides a new type of metal-support catalyst, the metal active phase of which mainly includes Ce-Mn, Ce-Zr, Mn-Zr and other bimetallic and multimetallic materials, and the support is CaO. The catalyst includes a CaO support and active metal particles dispersed on the support, the active metal particles are dispersed on the surface of the CaO support by embedding, the doping of the metal is conducive to the formation of oxygen vacancies, increases the electron cloud density, reduces the valence electron energy level, and makes the catalyst have excellent hydrogen production performance and stability in the cyclic adsorption of H2O and CO2. The abundant oxygen vacancies provide active sites for the adsorption and dissociation of H2O in biomass, and promote the hydrogen production from biomass gasification.

A waste processing system 100 comprises a control unit 110 which assesses characteristics of a waste material (S610, Fig. 6) and obtains parameters of the waste processing system (S620, Fig. 6). Operation parameters are determined based on the waste material characteristics and the system parameters (S630, Fig. 6) and the system operated to process the waste material (S640, Fig. 6). The material characteristics may be type of waste, amount, quality, or water content. The waste material may comprise first and second waste materials with the material characteristics being the amounts of the first and second materials. The operation parameters may comprise a rate of release of the waste materials from storage 120, 130, 140, a number of reactor stages 170, 180, 190, a number of conveyor systems 160, heating methods, or power consumption. A system parameter may be an ambient temperature around a thermal reactor. Waste heat may be used to pre-heat the thermal reactor or the waste material. The waste material is typically tyres, plastics, or biomass, which may be processed by torrefaction, pyrolysis, or hydrolysis. A control system and software code executing machine learning algorithms to operate the waste processing system are also claimed.

Human waste processing apparatus configured for the pyrolysis and preferably torrefaction processing of human waste biomass. A liquid based emission scrubber unit is coupled to at least one pyrolysis / torrefaction heating unit. An optional recirculation assembly provides recirculation through the pyrolysis / torrefaction unit to provide recirculated stepwise heating of waste via incremental heating stages. Predominantly solid waste is treated via a final stage heat treatment process prior to deposition as char for collection and / or subsequent disposal. Processing of biomass gases is achieved via dispensing gas emissions directly into a scrubbing liquid contained within a scrubber tank. Transport of the waste through the apparatus is achieved via one or a plurality of helical screw conveyors.

The invention relates to the technical field of biomass solid fuel analysis and detection, in particular to a biomass baking material industrial component and slagging risk detection method and device.The method comprises the steps that a detection requirement corresponding to a target biomass baking material sample is determined so as to determine a preset working mode of a sample injection unit, preparing a detection area of the target biomass baking material sample in the working mode; carrying out laser striking operation on the detection area to collect corresponding LIBS spectral data, and carrying out data processing on the LIBS spectral data to obtain corresponding sample index data; and based on the sample index data, generating a detection report corresponding to the target biomass baking material sample, and sending the detection report to the target client. According to the method, tabletting and sample preparation are not needed, off-line rapid sampling inspection and on-line real-time detection can be achieved, the detection result can be directly associated with components and risks concerned industrially, and the method has important industrial application value.

The present invention relates to a method for use in a biogas plant having at least one digester (12) and a thermal treatment unit (50), the method comprising the steps of : a ) anaerobically digesting an organic biomass (18) in at least one digester (12) through microorganisms at a temperature below 50 ° C to produce methane-containing biogas (16) and a digestate (14); b) removing a major fraction (32) of the digestate (14) from the digestion process after a fast retention time t and subjecting at least part of said major digestate fraction (32) to a thermal treatment in a thermal treatment unit (50) at a temperature above 175 ° C for at least one minute, wherein the thermal treatment step involves at least one treatment selected from the group consisting of pyrolysis, torrefaction, gasification, hydrothermal gasification, hydrothermal carbonization and hydrothermal liquefaction; and c ) retrieving a minor fraction (34) of the digestate (14) from the digestion process after an inoculum retention time T that is longer than the fast retention time t, returning said minor digestate fraction (34) into the digestion process and mixing the minor digestate fraction with the organic biomass (18) within the digester (12).

This technology provides a new way to enable continuous operation of the semi-carbonization process. [Solution] The biochar production apparatus 10 comprises a heat transfer medium heater 14 for heating the heat transfer medium Hm, a heat storage unit for keeping the heated heat transfer medium Hm warm and storing it, and a torrefaction unit for semi-carbonizing the biofuel Bf using the heat from the heat transfer medium supplied from the heat storage unit.

Systems and methods for reducing the volume of construction and demolition (C&D) debris waste are described. The systems include a torrefaction unit that reduces the hardness of the waste while degrading it into volatiles and particles having a range of sizes. The variation in particle size allows for a more efficient compaction due to minimal void space and the imparted softness allows for increased compressibility. This results in the processed debris having a much smaller volume than had it not undergone the presently described methods, which reduces landfill tipping fees and extends the life of the landfill.

The utility model discloses a fluidized bed biomass baking system, include: pre -drying bunker body, the side of pre -drying bunker body is provided with fluidized bed body and the side of fluidized bed body is provided with cyclone dust collector, the side of cyclone dust collector is provided with heat -insulating buffer tank body and the side of heat -insulating buffer tank body is provided with cloth bag dust collector body, the side of cloth bag dust collector body is provided with hot blast stove body. The utility model adopts pre -drying bunker and fluidized bed baking combination, and the material is dried, and the baking treatment can improve the ability of material processing greatly, and the time required for material baking is shortened, and the pre -drying drying waste gas is separated from the baking waste gas, and the baking waste gas recycling is utilized, and a part of baking waste gas is used as fuel to enter the hot blast stove and burns, produces hot flue gas, and another part of baking waste gas mixes with hot flue gas to the required baking hot flue gas temperature, and the waste heat and combustible component of baking waste gas are fully utilized, and the system energy consumption is reduced.

Integrated process for providing multiple raw materials to a downstream operation to generate an article of manufacture. Pyrolysis, torrefaction, reforming, partial oxidation, and / or gasification is integrated with gas fermentation. Integrated process converts carbon sources that would otherwise be vented to the atmosphere or discarded as waste to a fermentation product and one or more byproducts, which in turn are provided to a downstream operation to generate an article of manufacture. In certain aspects, the fermentation product may be ethanol, isoprene, butane diol, ethylene. In certain aspects, the byproduct may be metal, metal oxide, char, silica, and or steel. The downstream operation to generate an article of manufacture may be an operation to generate plastic products, rubber products, textiles, clothes, and the like.

A seal assembly is provided that transitions from an expanded configuration to a retracted configuration. In the expanded configuration, the seal assembly forms a non-permeable seal between a rotatable rigid body and a non-rotatable rigid body, the non-permeable seal preventing the entry of oxygen into a reactor drum having a low oxygen environment and / or leakage of gases produced in the low oxygen environment of the reactor drum to the surrounding environment. In the retracted configuration, the rotatable rigid body is secured relative to the non-rotatable rigid body such that relative rotation is prevented. The first rigid body may be translatable relative to the second rigid body to reduce a length of the seal assembly and facilitate rapid removal and / or replacement of the seal assembly from between adjacent components of a torrefaction, gasification, or pyrolysis system.

To provide a gasification method and a production method of a semi-carbonized fuel material capable of efficiently gasifying a semi-carbonized fuel material obtained by semi-carbonizing at least one of a wood-based material and a herbaceous material.SOLUTION: A gasification method comprises a semi-carbonization step of superheating a wood-based material and a herbaceous material with superheated steam V to produce a semi-carbonized fuel S, and a gasification step of gasifying the semi-carbonized fuel S by using a gasification system 2 that feeds the semi-carbonized fuel S from below and discharges a product gas G from above.SELECTED DRAWING: Figure 2

The present invention relates to a carbonization plant for the production of charcoal from at least one lignocellulosic material. According to the invention, this plant comprises a vertical reactor (1) comprising a chamber inside which four superimposed treatment zones are delimited, the reactor defining a flow path between the two ends of said chamber, along which said at least one lignocellulosic material undergoes a carbonization process as they progress through the different zones, a first drying zone, placed at the upper end of said reactor, a second so-called torrefaction zone, a third so-called pyrolysis zone configured to carry out the pyrolysis of the material(s) originating from the so-called torrefaction zone, and a fourth so-called cooling zone for the charcoal produced,said reactor comprising a suction device for creating a vacuum in this chamber so as to evacuate the gases formed in the reactor through at least one so-called extraction opening and said reactor also comprising a reinjection opening, connected to a reinjection circuit for at least part of the gases formed in the reactor and evacuated through said at least one extraction opening, which is configured to lower the temperature of these gases to a coal extraction temperature. [Fig. 1],

The invention relates to a method and an apparatus for treating a fluidization gas in a thermal conversion process. A recirculated gas (10) is recirculated in the thermal conversion process which comprises at least a fluidized reactor (2), in which a feed (1) is treated for forming a product, such that the recirculated gas is formed from the product (3) and / or a non-condensible gas of the product and the recirculated gas (10) is fed as the fluidization gas (15) to the reactor. The recirculated gas is heated, and the recirculated gas is treated by a catalytic conversion using a catalyst before the reactor or in the reactor for decreasing oxygen content in the recirculated gas.

Systems and methods for reducing the volume of construction and demolition (C&D) debris waste are described. The systems include a torrefaction unit that reduces the hardness of the waste while degrading it into volatiles and particles having a range of sizes. The variation in particle size allows for a more efficient compaction due to minimal void space and the imparted softness allows for increased compressibility. This results in the processed debris having a much smaller volume than had it not undergone the presently described methods, which reduces landfill tipping fees and extends the life of the landfill.