746results about "Indirect heating destructive distillation" patented technology

A stirring device is provided. The stirring device includes a stirring device body (10), a rotating shaft (11) arranged at the center of the stirring device body, a plurality of connecting rods (12) fixedly connected to the rotating shaft, and a regulating assembly (141,143,144,145,146,147). A tail end of each connecting rod is hinged with a scraper (13). The rotating shaft is rotatable around an axis of the rotating shaft under the driving of a driving component. The connecting rods are uniformly distributed along the length of the rotating shaft. The rotating direction of the scraper is located in a plane vertical to the axis of the rotating shaft. The regulating assembly is used for regulating a rotation angle of the scraper. Wherein, the scraper can be in flexible contact with an inner wall of the stirring device body under the regulation of the regulating assembly.

A method for pyrolysis of a mass of waste material, includes: providing a screw arrangement adapted to supply heat to the mass by mechanical shear; providing a reactor after the screw arrangement, adapted to supply heat to the mass in the absence of oxygen by heating the reactor wall; heating the mass to an exit temperature and increasing the pressure to an exit pressure in the screw arrangement; thermally degrading the mass in the reactor. The mass is brought into an extreme condition at the exit temperature and exit pressure by the screw arrangement, such that during the pressure drop pyrolysis occurs, thereby forming gaseous hydrocarbons within the connecting element.

Disclosed herein are methods for pyrolysis of plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the methods include directing the plastic feedstock into an internal volume of a reactor vessel, and pyrolyzing the plastic feedstock in the internal volume of the reactor vessel.

The invention provides a rapid waste plastic pyrolysis-catalysis device and a test method, and belongs to the field of waste plastic utilization. The problems that a traditional waste plastic pyrolysis-catalytic reaction device is uneven in heating and low in pyrolysis rate in the pyrolysis process are solved. A rapid pyrolysis-catalytic reaction device for waste plastics comprises a pyrolysis device, a catalytic reaction device and a catalytic reaction device, the pyrolysis device comprises a pyrolysis container, a heat-carrying medium and a heating device, the heat-carrying medium is filled in the pyrolysis container and is in a liquid state at a high temperature, and the heating device is arranged on the wall of the pyrolysis container; the catalytic cracking device comprises a reducer pipe, an electromagnetic induction heating device and a catalytic reaction core, the catalytic reaction core is arranged on the upper half section of the reducer pipe, and a coil of the electromagnetic induction heating device is arranged outside the catalytic reaction core. The device is mainly used for pyrolyzing plastics.

Disclosed herein are reactors for pyrolysis of plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the reactors include a reactor vessel, and one or more heaters configured for heating the feedstock in the reactor vessel's internal volume.

Disclosed herein are reactors for pyrolysis of plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the reactors include a reactor vessel, and one or more heaters configured for heating the feedstock in the reactor vessel's internal volume.

Disclosed herein are reactors for pyrolysis of plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the reactors include a reactor vessel for receiving and pyrolyzing the plastic feedstock, and one or more heaters for heating the feedstock in the reactor vessel's internal volume.

Disclosed herein are methods for pyrolysis of plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the methods include directing the plastic feedstock into an internal volume of a reactor vessel, and pyrolyzing the plastic feedstock in the internal volume of the reactor vessel.

It has been discovered that use of a single reactor for melting waste plastics and pyrolyzing the melted waste plastics can lower the carbon footprint of a chemical recycling facility. More particularly, by melting and pyrolyzing in the same reactor vessel, one may mitigate the need for additional heat sources, thereby decreasing the potential need to combust additional fossil fuels for heating purposes. Consequently, by utilizing the plastic liquification and pyrolysis reactor described herein, one can lower the carbon footprint of the chemical recycling facility described herein.

Process for feeding plastic material, e.g. a plastic waste, to a processor such as a thermochemical reactor, e.g. a pyrolysis reactor. The process comprises an optional shredder or disintegrator (1), a conveying system (2), a feed hopper (3) with a lock hopper or rotary valve, a melting tank (6) with an agitator (5) followed by a melt pump (7) for the delivery of molten plastic to the processor. The advantage of the current process includes the ability to supply a consistent, metered flow to the processor, independent of the recycled plastic's melt properties, or the form or particle size and distribution of the plastic material.

The invention discloses a device and method for preparing biochar from corncobs, and belongs to the technical field of biochar preparation, the device comprises a machine base, a frame is fixed outside the machine base, an outer cylinder is horizontally fixed on one side of the machine base, and the outer cylinder is fixedly connected with the frame; the crushing seat is arranged above the outer cylinder; the combustion system is arranged on one side of the outer barrel, and the combustion system is externally connected with a hot gas booster fan; the sealing end cover is fixed in the outer cylinder body; the carbonization cylinder is rotationally mounted on the machine base, and one end of the carbonization cylinder is coaxially and rotationally connected with the sealing end cover; the heat control unit is arranged in the annular cavity of the carbonization cylinder; the material guide channel is arranged on the sealing end cover; the filter material unit is fixed in the carbonization cylinder; according to the device, a scrap mixture can be graded according to the particle size, primary carbonization of the scrap mixture is achieved, then the scrap mixture is remixed and then subjected to high-temperature pyrolysis carbonization, and the purity and quality of biochar preparation are improved.

Disclosed is a pyrolysis reaction method including a raw material input step of inputting a raw material and acquiring first data, a pyrolysis reaction step of pyrolyzing the input raw material, a reactant discharge step of discharging a pyrolyzed reactant and acquiring second data, an image sample collection step of additionally obtaining image samples, a DB storage step of normalizing the obtained image samples into time series data and storing RGB code values in a DB, a labeling step of assigning labels to the first data and the second data, a data processing step of comparing the first data and the second data with the data stored in the DB to generate third data and fourth data, and a control value deriving step of deriving control values of a pyrolysis temperature and a pyrolysis time based on the third data and the fourth data.

An improved reactor vessel for processing (recycling and upcycling) of plastics includes a shear plate assembly disposed on a rotatable shaft concentrically disposed within a cylindrical reactor vessel. The shear plates are spaced from the vessel wall to generate a predetermined strain rate between the shear plate and the inner wall via Couette flow, enhancing efficiency of the reaction.

Disclosed herein are systems for pyrolyzing plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the systems include one or more energy transfer apparatuses configured for receiving the plastic feedstock and applying energy to the plastic feedstock.

A system for converting waste plastic material to petrochemicals. The system including a feed inlet and distributor zone, a raked film reaction section located below the feed inlet and distributor zone, and a stirred tank reaction section located below the raked film reaction section.

A thermal treatment reactor for feedstocks and method of use. The thermal treatment reactor comprises an infeed assembly, a furnace, a rotary drum, a discharge assembly, and a liberator assembly. The rotary drum may comprise forwarding flights, mixing flights, oscillating flights, and raking pins. The feedstock to be thermally treated enters the reactor through the infeed assembly. The feedstock is fed into the reactor in a controlled manner by means of a screw conveyor system. The thermally-treated product exits the reactor via the discharge assembly, which separates the thermally treated product into a VOC liberator, from whence the product enters into a cooling system to reduce the temperature for safe storage and handling.

A biochar production system includes a reactor body, a central rod disposed within the reactor body, a leveling arm extending from the central rod and configured to rotate about the central rod, and a bed level sensor system. The bed level sensor system includes a float configured to move from a resting position on a biomass in the reactor to an ending position upon contact with the leveling arm, and a level sensor coupled to the float via a connector. The level sensor is configured to correspondingly move with the float. A controller is configured to detect bed levels of the biomass within the reactor body, and determine a plurality of sample readings based on the detected bed levels.

A method for valorizing refuse material comprises a selective pyrolysis, based on: a first step of pyrolysis of the biogenic fraction, with at least one subsequent condensation step, and a second step of pyrolysis of the synthetic fraction with at least one subsequent condensation step; wherein the first and second pyrolysis steps are configured in series; wherein the first pyrolysis step is configured to extract at least a fraction of biogenic combustible gas which continues to the first condensation step, and a fraction of solid material that is transported to the second step of pyrolysis of the synthetic fraction, which is carried out at a higher temperature than the first pyrolysis step, and which is configured to obtain a fraction of synthetic combustible gas which continues to the second condensation step, and a fraction of solid material.

The invention discloses a rotary kiln pyrolysis process preheating and replacing method which comprises the following steps: replacing and preheating an upgrading system when a rotary kiln is started, performing low-load operation on the rotary kiln, heating the rotary kiln by a rotary kiln hot blast stove and a flue gas fan, closing a pipeline valve from a dry gas fan to a first dust remover, and performing low-load operation on the rotary kiln; a rotary kiln nitrogen replacement valve is slightly opened, nitrogen enters the rotary kiln through a dry gas guide screw for replacement and heat removal, an oil and gas pipeline is preheated, direct cooling tower spraying cooling water and indirect cooling tower circulating cooling water are put into use, a coal gas fan is started for system circulation, and an electrical tar precipitator outlet is opened to a rotary kiln starting line valve; the invention further discloses a rotary kiln quality improvement system, the rotary kiln pyrolysis process preheating and replacement method is adopted, the start-up time is effectively shortened, the investment and operation cost is saved, and meanwhile a foundation is laid for long-period stable operation of the system.

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 relates to equipment and a method for preparing carbon from waste heat of steel slag, a carbonized material and a carbonized product. The steel slag waste heat carbonization equipment comprises at least one carbonization device, and the carbonization device comprises a heat storage chamber and a carbonization chamber; the heat storage chamber is used for containing steel slag, and the carbonization chamber surrounds the outer side of the side wall of the heat storage chamber. The carbonization chamber in the carbonization device is arranged on the outer side of the side wall of the heat storage chamber in a surrounding manner; when a biomass material to be carbonized is placed in the carbonization chamber and high-temperature steel slag is placed in the heat storage chamber, heat of the steel slag in the heat storage chamber is conducted to the periphery, so that the biomass material in the carbonization chamber is heated and carbonized; the biomass in the carbonization chamber is heated more uniformly, and the carbonization effect is more uniform; the heat conduction of heat of the heat storage chamber to surrounding air is reduced to a certain extent, a certain heat preservation effect is achieved on the heat storage chamber, more heat is used for carbonizing biomass, the utilization rate of the waste heat of the steel slag is further improved, and the carbon making efficiency is improved.

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 biomass pyrolysis waste heat utilization composite preparation reforming hydrogen production equipment and method.The biomass pyrolysis waste heat utilization composite preparation reforming hydrogen production equipment comprises a pyrolysis carbonization furnace and a reforming hydrogen production furnace which are connected up and down, a pyrolysis reaction chamber is arranged in the pyrolysis carbonization furnace, and a reforming reaction chamber is arranged in the reforming hydrogen production furnace; a pyrolysis heating cavity is formed between the outer wall of the pyrolysis reaction chamber and the inner wall of the pyrolysis carbonization furnace, a reforming heating cavity is formed between the outer wall of the reforming reaction chamber and the inner wall of the reforming hydrogen production furnace, and a heating resistance wire is arranged on the inner wall of the reforming hydrogen production furnace. According to the invention, a plurality of devices are not needed to transfer the catalyst, the operation steps are simplified, the experimental error in the transfer process is reduced, a heat source is provided by a single-section electric heating mode, and the energy consumption is reduced; and waste heat recycling can be achieved, the heat energy use efficiency is improved, and the pyrolysis hydrogen production efficiency is higher.

The invention relates to a multi-source heat carrier heat transfer coal pyrolysis reaction device, and relates to the technical field of multi-heat source complementary coal pyrolysis and gasification. Comprising a reactor, a spiral feeder, a solid product collector and a heat storage cavity, the interior of the reactor is divided into a pyrolysis cavity and a heat supply cavity through a steel plate; the spiral feeder is connected with the top of the pyrolysis cavity through a conveying pipe, and the solid product collector is connected with the bottom of the pyrolysis cavity through a pneumatic knife gate valve; and the pyrolysis cavity is connected with the bottom of the heat storage cavity through a pneumatic knife gate valve. The function that the reactor adapts to multi-source heat sources and high heat transfer flux is achieved through circular flowing of the high-temperature heat carrier; the heat transfer efficiency of the reactor can be effectively improved by regulating and controlling the heat transfer characteristic and the flowing state of the high-temperature heat carrier, and the pyrolytic reaction rate is increased.

The invention relates to the field of preparation of a conductive material for a cable shielding material, and discloses a preparation method, a production system and application of a conductive filler for a high-voltage cable shielding material, the preparation method comprises the following steps: S1, mixing a first solution containing raw material oil with a carbon black raw material in a spray form to obtain a mixed material; wherein the oil absorption value of the carbon black raw material is 180-220 (10 <-5 > m < 3 > / kg); wherein the content of aromatic hydrocarbon in the raw oil is 70-85wt%, and the content of asphaltene in the raw oil is lower than 0.1 wt%; s2, in the presence of carrier gas, enabling the mixed material to flow in a heating section, and carrying out indirect heat exchange with high-temperature fluid; the temperature of the high-temperature fluid is not lower than 1800 DEG C, and the heat exchange time is 30-120 s. The conductive filler prepared by the preparation method has relatively high structural degree and graphitization degree, and can meet the performance requirements of cable shielding materials.

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 an internal preheating carbonization furnace, and particularly relates to the technical field of carbonization furnaces, the internal preheating carbonization furnace comprises a furnace body, a ring pipe and a plurality of preheating pipes, the ring pipe is fixed on the outer wall of the furnace body, the plurality of preheating pipes are positioned on one side of the ring pipe and are fixedly communicated, and one end part of each preheating pipe is provided with a flow guide preheating mechanism; the flow guide preheating mechanism comprises a communicating ring pipe installed at one end of the preheating pipe, one side of the communicating ring pipe fixedly communicates with a backflow pipe, and the top end of the outer wall of the ring pipe fixedly communicates with a pressurizing pipe. According to the utility model, the diversion preheating mechanism is adopted, high-temperature waste gas is exhausted into the flue gas heat conduction cylinder through the exhaust pipe, the flue gas heat conduction cylinder enables the high-temperature waste gas to be in contact with the outer wall of the preheating tank, the circulating pump is started to enable the suction pipe to generate suction force, the suction pipe sucks hot liquid in the preheating tank into the pressurizing pipe, and the furnace body is preheated through the plurality of preheating pipes; high-temperature waste gas of the carbonization furnace can be fully utilized, efficient preheating of the furnace body is achieved, and the energy-saving performance is better.

A method and an apparatus for treating comminuted waste material the method comprising: •a) providing a heating chamber (28) and one or more combustion heating means (40a-f) for heating the contents of the heating chamber (28), the heating chamber (28) having an inlet (21) and an outlet (22), •b) feeding comminuted waste material through the inlet (21) and into the heating chamber (28); •c) heating the comminuted waste material in the heating chamber (28), using the combustion heating means (40a-f), to generate a combustible gas; and •d) supplying at least a portion of the generated combustible gas to the one or more combustion heating means (40a-f) for heating the heating chamber (28).

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 relates to the technical field of biomass carbonization, in particular to a biomass continuous carbonization kiln based on a double-layer rotary kiln structure and application of the biomass continuous carbonization kiln. A biomass continuous carbonization kiln comprises a rotary kiln body, a heating box body and a sealing system. According to the invention, preheating and carbonization are carried out in sections through the inner and outer layer guide plates, the carbonization time is prolonged by 30%, and the product yield is improved by 15%; oxygen permeation is controlled through triple sealing, the deflagration risk is reduced, and safety is good; heat energy closed-loop utilization: flue gas purification, tail gas backdraft and waste heat drying are integrated, comprehensive energy consumption is reduced by 25%, flue gas waste heat is fully recycled, heat energy is utilized in a stepped mode, energy consumption is low, and environment-friendly production is achieved; the explosion-proof device is linked with the cooling system, so that the problem of passive protection only depending on buffer filler in the prior art is effectively solved, and the safety controllability is high.