52 results about "Co pyrolysis" patented technology

The invention discloses an oil-containing solid waste and plastic co-pyrolysis method based on carbon residue in-situ catalysis, and belongs to the technical field of solid waste resource utilization. The method comprises the following steps: pre-treating and mixing oil-containing solid waste and waste plastic, and co-pyrolyzing to prepare primary carbon residue and pyrolysis steam; performing acid dipping or oxidation modification on the primary carbon residue to obtain modified carbon residue, performing in-situ catalytic reforming on the pyrolysis steam and the modified carbon residue under the condition that the temperature is not lower than the final pyrolysis temperature, performing fractional condensation separation on a product to obtain pyrolytic oil and hydrogen-rich gas, and performing high-valued preparation on a functional material from the secondary residue. According to the method, the problems that a catalyst needs to be additionally added and the product quality is low in the existing co-pyrolysis technology are solved. No additional catalyst is needed in the whole process, the process cost is reduced, and related secondary pollution of the catalyst is avoided; product quality improvement is effectively achieved, two kinds of solid waste are treated synchronously, and remarkable environmental protection and economic and social benefits are achieved.

This invention provides an intelligent optimization method and system for co-pyrolysis feedstock ratio, relating to the field of data processing technology. The method includes: acquiring feedstock data; constructing a co-pyrolysis reaction characterization feature dataset under different ratio conditions based on the feedstock data, wherein the co-pyrolysis reaction characterization features include multi-scale reaction features and reaction trajectory features; constructing a kinetic feature dataset based on the reaction trajectory features; constructing a causal network for the co-pyrolysis feedstock ratio based on the co-pyrolysis reaction feature dataset and the kinetic feature dataset; constructing a causal constraint reinforcement learning environment based on the causal network; determining a co-pyrolysis feedstock ratio optimization strategy using a temporal difference reinforcement learning algorithm based on the causal constraint reinforcement learning environment; evaluating the reversibility of the co-pyrolysis feedstock ratio optimization strategy to determine the final strategy; and executing the final strategy.

The application discloses a method for preparing biofuel by low-temperature dechlorination of waste PVC and coupling biomass co-pyrolysis, which comprises the following steps: drying, crushing and screening waste PVC, and then performing low-temperature dechlorination in an inert atmosphere, wherein the carrier gas is inert gas, the dechlorination temperature is 340-380 DEG C, the dechlorination time is 20-40 min, and dechlorinated PVC is obtained; crushing and drying the dechlorinated PVC, and then mixing the dechlorinated PVC with biomass at a mass ratio of 0.1-10:1, and then heating and pyrolyzing at 500-700 DEG C for 20-40 min to obtain biofuel. The method achieves good dechlorination effect through step-by-step pyrolysis, and improves the quality of biofuel; the method has a simple process flow, does not need to add any catalyst and adsorbent, and has a good industrial application prospect.

The invention relates to the technical field of sewage treatment, in particular to a manganese oxide modified red mud-biochar magnetic adsorbent and a preparation method thereof. According to the method, magnetic red mud-biochar is prepared from red mud and biomass through co-pyrolysis, KMnO4, MnSO4 and the red mud-biochar are mixed, and the red mud-biochar is modified through generated manganese oxide in a co-precipitation mode. According to the method, manganese oxide can be uniformly loaded on the surface of the magnetic red mud-biochar composite material, so that the removal capacity on ammonia nitrogen and Mn < 2 + > is improved, and meanwhile, the raw material cost of magnetization modification is reduced; the adsorbent can be quickly separated and recycled, has good cyclic recycling performance, and provides a novel functional material which is green, low in cost, simple and convenient to operate, excellent in performance and environment-friendly for industrial wastewater, agricultural non-point source pollution and urban sewage treatment.

The application discloses a kind of photothermal synergic catalysis co-pyrolysis system and method of marine organic solid waste, method includes the following steps: waste fishing net, plastic garbage and seaweed are crushed and mixed uniformly according to mass ratio (2-4):(3-5):(1-3);Mixed material and multifunctional composite photocatalyst prepared by seaweed are sent into moving bed reactor according to mass ratio (10-20):1, under the condition of concentrated solar energy leading, electric heating auxiliary, continuous co-pyrolysis is carried out;Pyrolysis product is separated by three-stage condensation to obtain heavy oil, light oil, water and gas.The method realizes the green cycle of "waste treatment", the catalyst cost is low, the degree of system intelligence is high, and provides an efficient, environmentally friendly, economically feasible innovative path for the resource utilization of marine organic solid waste.

Disclosed herein is a method for co-pyrolysis of a polyolefin and a rubber containing material comprising: operating at least a pyrolysis stage of a pyrolysis reactor at an operating temperature at or above the temperature at which pyrolysis of both the polyolefin and the rubber containing material commences and up to about 600° C. under a substantially inert atmosphere; feeding a mixture comprising the polyolefin and the rubber containing material into the pyrolysis reactor; co-pyrolysing the mixture in the pyrolysis reactor to produce a pyrolysis gas comprising volatile pyrolysis products of the polyolefin and the rubber, wherein the volatile pyrolysis product of the olefin comprises at least a short chain olefin and the volatile product of the rubber comprises at least a diene; and facilitating a gas phase reaction between the short chain olefin and the diene to produce a volatile gas comprising single-ring aromatic hydrocarbons.

The invention discloses a catalytic reaction system for zero-carbon fuel pretreatment and straw co-pyrolysis. The catalytic reaction system comprises a co-pyrolysis reaction furnace, a zero-carbon fuel pretreatment device, a straw treatment device, a condensation collection device and a heat energy recovery device, the co-pyrolysis reaction furnace is provided with a microwave generator, and the zero-carbon fuel pretreatment device and the straw treatment device are respectively communicated with the co-pyrolysis reaction furnace; the condensation collection device comprises a condensation box communicated with the co-pyrolysis reaction furnace through a smoke exhaust pipe, a condensation pipe arranged in the condensation box, an oil collection tank communicated with the condensation pipe and a gas collection tank communicated with the condensation box, and the heat energy recovery device comprises a water tank forming a circulation loop with the condensation pipe and one or more preheating water pipes led out of the circulation loop. And the heat exchange section of the preheating water pipe is arranged in the interior or the shell of the pretreatment device and the straw treatment device. Heat energy of oil gas is recycled, zero-carbon fuel and straw are preheated, the pyrolysis efficiency is improved, and meanwhile resource waste can be reduced.

The invention relates to a high-first-effect quick-charge type nitrogen and phosphorus co-doped hard carbon negative electrode material, a preparation method thereof and a sodium ion battery. The preparation method comprises the following steps: crushing biomass by using a crusher to obtain biomass powder; deionized water is adopted to wash the biomass powder, and then the washed biomass powder is dried at a first preset temperature for a first preset time; uniformly mixing the pretreated biomass powder, an activating agent and a nitrogen doping agent according to a preset mass ratio; placing the mixed material in a first tubular furnace in an inert gas atmosphere for carbonization and calcination; cooling the calcined product to room temperature, taking out the calcined product, transferring the calcined product into an acid solution, stirring and cleaning, repeatedly washing the calcined product with deionized water until the calcined product is neutral, and drying the calcined product in a drying oven at a second preset temperature for a second preset time; the mode of high-temperature nitriding presintering and vapor phase phosphorus deposition is adopted, and element distribution uncontrollability, namely uneven distribution, of a traditional co-pyrolysis method is broken through.

The application discloses a method for preparing a Fenton-like catalyst by co-pyrolysis of steel slag and orange peel and application thereof, and belongs to the technical field of catalytic materials. Biomass material is prepared by cleaning, drying, crushing and passing through a 100-mesh sieve, steel slag is prepared by crushing and passing through a 200-mesh sieve, the pretreated biomass powder and the steel slag powder are stirred and mixed according to different mass ratios, the obtained mixture is co-pyrolyzed at a high temperature of 600-900 DEG C, and then the co-pyrolysis product is cleaned, dried, ground and sieved to obtain a Fenton-like catalyst. The application uses cheap steel slag and orange peel as raw materials to prepare a composite material for a Fenton-like catalyst by co-pyrolysis, uses cheap orange peel as a modifier, strengthens the activation effect by introducing carbon material, fully utilizes beneficial components (such as metal oxides like iron oxides) in the steel slag, and fully improves the pore structure of the steel slag, so that a high-efficiency Fenton-like catalyst is prepared, and the purpose of treating waste with waste is achieved.

The present application belongs to the technical field of catalyst preparation, and relates to a preparation method and application of a black and odorous water sludge-based carbon catalyst. The preparation method of the black and odorous water sludge-based carbon catalyst comprises the following steps: (1) mixing, drying and grinding black and odorous water sludge and non-sludge biomass materials to obtain carbon-increased sludge; and (2) activating the carbon-increased sludge with an activator, pyrolyzing and cooling the carbon-increased sludge in an inert atmosphere to obtain the black and odorous water sludge-based carbon catalyst. The present application improves the carbon content of sludge carbon, reduces the yield, ash content, conductivity and element ratios of H / C, N / C and O / C of sludge carbon by co-pyrolyzing black water sludge and non-sludge biomass materials. In addition, co-pyrolysis reduces the content and toxicity of heavy metals in biochar. Co-pyrolysis of black and odorous water sludge and non-sludge biomass materials rich in C elements not only simultaneously disposes the sludge and non-sludge biomass materials, but also improves the C element content of biochar, thereby improving the catalytic ozone activity of the biochar.

The invention discloses a catalyst for preparing low-carbon aromatic hydrocarbon through co-pyrolysis of coal and waste plastics and a preparation method thereof, and the catalyst is prepared according to the following steps: (1) pretreatment and surface modification of microporous USY, (2) preparation of USY-coated silica-alumina xerogel, (3) steam-assisted crystallization, and (4) template removal and post-treatment. According to the method, commercial micropore USY serves as a core, mesoporous USY deposited on the outer layer serves as a shell, active metal Ni and Ti are added, the mesoporous shell mainly plays a role in pre-cracking and transmission, super-molecules are pre-cracked on the surface, even if a small amount of carbon is deposited in a pore channel, the carbon deposition mainly occurs in a mesoporous channel, and therefore the performance of the catalyst is greatly improved. A key active center cannot be blocked, and deposited carbon in mesopores is easier to remove through scorching. A product generated by a catalyst core layer can also be quickly transferred to mesopores, so that excessive reaction is avoided, and the content of low-carbon aromatic hydrocarbon in a co-pyrolysis tar product is increased.

The invention discloses a coal and waste plastic co-pyrolysis catalyst Ni / Ce / Zr-(at) USY and a preparation method thereof, and the coal and waste plastic co-pyrolysis catalyst Ni / Ce / Zr-(at) USY is prepared according to the following steps: step (1) pretreatment and surface modification of microporous USY, step (2) USY surface seed crystallization, step (3) synthesis of precursor gel of a mesoporous USY shell layer, step (4) hydrothermal crystallization and shell layer growth, and step (5) post-treatment and activation. And (6) synthesizing Ni / Ce / Zr-(at) USY with a core-shell structure by using an ethanol impregnation method, firstly grafting a layer of seed crystal capable of inducing the growth of the mesoporous USY on the surface of the commercial USY, and then growing a USY shell layer with the mesoporous structure by taking the seed crystal as a core through a hydrothermal reaction under the help of a structure-directing agent (a template agent). The carbon deposition amount on the catalyst is reduced, the co-pyrolysis light oil content is improved, and the heavy oil content is reduced.

The invention provides a method for preparing aromatic hydrocarbon-rich bio-oil by adopting ZnCr2O4 / HZSM-5 to catalyze co-pyrolysis of biomass and waste tires, and belongs to the technical field of bio-oil preparation. The method comprises the following steps: mixing biomass and waste tires to obtain a mixed raw material; the preparation method comprises the following steps: mixing a ZnCr2O4 oxide and an HZSM-5 molecular sieve, and carrying out ball milling to obtain a ZnCr2O4 / HZSM-5 composite catalyst; and putting the mixed raw material into an upper temperature zone, putting the ZnCr2O4 / HZSM-5 composite catalyst into a lower temperature zone, and carrying out pyrolysis under inert gas to obtain the bio-oil after the pyrolysis is finished. According to the method, the ZnCr2O4 / HZSM-5 catalyst is applied to the co-pyrolysis process of the enzymatic hydrolysis lignin and the waste tires for the first time, and directional conversion from the waste to the aromatic hydrocarbon-rich bio-oil is realized through the synergistic catalytic effect of the ZnCr2O4 / HZSM-5 catalyst in the system.

The invention belongs to the technical field of nano catalytic materials, and particularly relates to a preparation method of a non-noble metal monatomic catalyst material containing an organochlorine structure, and the organochlorine structure is stably constructed by introducing alkali metal or alkaline earth metal salt of perchloric acid in the preparation process for co-pyrolysis. The catalyst prepared by the method has good ORR catalytic activity, and has low hydrogen peroxide yield and good cycle stability in an acidic medium. According to the invention, a structure taking non-metallic element chlorine as a core is innovatively proposed, and the activity of the catalyst is further improved while the stability of the catalyst is improved by modifying the original inactive structure while the active structure of the catalyst is not changed.

The application discloses a biomass and coal co-pyrolysis reactor, which comprises a reactor body, wherein the reactor body comprises a biomass pyrolysis cylinder and a coal pyrolysis cylinder which are communicated with each other, the biomass pyrolysis cylinder is connected below the coal pyrolysis cylinder, the cross-sectional area of the biomass pyrolysis cylinder is smaller than that of the coal pyrolysis cylinder, the bottom of the biomass pyrolysis cylinder is provided with a lifting gas inlet, the gas generated by the coal pyrolysis is suitable to enter the reactor body through the lifting gas inlet, the top of the coal pyrolysis cylinder is provided with a product outlet, at least one biomass feeding port is arranged on the side wall of the biomass pyrolysis cylinder, at least one coal feeding port is arranged on the side wall of the coal pyrolysis cylinder, and a plurality of heat accumulating radiation pipes are arranged in the biomass pyrolysis cylinder and the coal pyrolysis cylinder in a spaced mode. According to the biomass and coal co-pyrolysis reactor, hydrogen in the biomass can be easily transferred to the oil gas in the coal pyrolysis cylinder, and the biomass and the coal pyrolysis can reach a synergistic effect.

This invention discloses a system for producing biochar by smoking biomass until it is thermally decomposed. [Solution] The system includes a smoker and a pyrolysis furnace, the smoker including a first outlet, a first intake, and a first exhaust, and a pyrolysis chamber provided in the pyrolysis furnace, the pyrolysis chamber including a feed port, a second outlet, and a second exhaust port, where the feed port communicates with the first outlet and the second exhaust port communicates with the first intake. Thus, the present invention promotes the direct condensation and adhesion of condensable volatiles in the pyrolysis gas to the biomass by constantly using the pyrolysis gas to smoke the biomass, and then improves the yield and carbon retention rate of biochar through the co-thermolysis of bio oil and biomass, thereby sealing more carbon elements into the biochar and achieving the effect of carbon fixation.

The utility model provides a kind of screening device for coal gangue and organic waste co-pyrolysis, including support frame and two screening cylinders being symmetrically fixed on support frame, two screening cylinders are conical structure, one partition is equipped between two described screening cylinders, and conical cylinder screen is respectively equipped in two described screening cylinders, two screening cylinders are respectively provided with material conveying mechanism on two sides of facing away, two described material conveying mechanism is respectively provided with feed hopper, two described material conveying mechanism is fixed with rotating shaft between, rotating shaft of the partition two sides is respectively equipped with multiple groups of breaking hammer and multiple groups of cutter, two described screening cylinder lower surface is communicated with material discharge hopper, and two described screening cylinder is respectively communicated with waste discharge hopper on material conveying mechanism side;The screening device is finely screened fine particle and secondary crushing is carried out to large particle, so that coal gangue and organic waste reach co-pyrolysis requirement, so that it is fully contacted and improves pyrolysis efficiency.

The invention discloses a method for preparing aliphatic hydrocarbon through co-pyrolysis of a photovoltaic module laminated part waste ethylene-vinyl acetate copolymer and a waste polyolefin elastomer. Physical and chemical complementation and free radical synergy of the ethylene-vinyl acetate copolymer and the polyolefin elastomer in the pyrolysis process are utilized; compared with independent pyrolysis, hydrogen transfer and deoxidation in co-pyrolysis have a synergistic effect, so that the selectivity and yield of aliphatic hydrocarbon are improved, generation of acidic oxygen-containing components and aromatics caused by deacetic acid is remarkably reduced, a liquid product is mainly composed of aliphatic hydrocarbon, carbon chain distribution is directionally concentrated to a short chain range, and meanwhile, tail gas corrosivity and post-treatment load are reduced. The solid carbon generated in the reaction process has a certain microporous structure and can be used as an adsorbent, an electrode material or a carbon-based fertilizer carrier, so that clean treatment and resource utilization of organic components of the retired photovoltaic module are realized.

The application discloses an electrolysis water self-supporting catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: selecting carbonized wood as a substrate, placing the carbonized wood into a metal salt solution, and adopting an electrochemical deposition technology to in-situ electrodeposition of transition metals on the carbonized wood to obtain a precursor of metal and carbonized wood hybrid; and co-pyrolyzing the precursor and melamine, so that metal nanoparticles are coated in nitrogen-doped carbon nanotubes and in-situ grown on the carbonized wood to obtain the electrolysis water self-supporting catalyst, and the whole preparation process is simple and easy to control, and the prepared electrolysis water self-supporting catalyst has a three-dimensional hierarchical porous structure, high conductivity and good catalytic activity and stability, and can be used for industrial current density electrolysis water hydrogen production.

This invention belongs to the technical field of water pollution control and solid waste resource utilization, specifically relating to a method for preparing porous carbon adsorbent materials and their application. The method includes the following steps: S1, pretreating carbon-containing biomass solid waste and calcium-containing industrial solid waste respectively to obtain pretreated biomass material and pretreated calcium-containing solid waste; S2, immersing the pretreated biomass material in an iron-based modifier system for modification treatment to obtain iron-based modified biomass material; S3, mixing the iron-based modified biomass material and the pretreated calcium-containing solid waste evenly to obtain a catalytic precursor; S4, subjecting the catalytic precursor to programmed temperature co-pyrolysis treatment, and obtaining a primary pyrolysis product after cooling; S5, sequentially subjecting the primary pyrolysis product to water washing, solid-liquid separation, drying, and pulverization to obtain the porous carbon adsorbent material. The raw materials of this invention are widely available and inexpensive, the preparation process is simple and can be mass-produced, and the overall cost is significantly lower than that of ordinary commercial activated carbon.

The present application belongs to the field of environmental functional material preparation and water treatment technology, and particularly relates to a preparation method of modified lignin / waste white clay co-pyrolysis adsorbent and application thereof. The preparation method comprises the following steps: (1) preparation of clay-based biochar; (2) preparation of iron-loaded adsorbent; (3) preparation of modified lignin / waste white clay co-pyrolysis adsorbent. The preparation method of the modified lignin / waste white clay co-pyrolysis adsorbent uses clay-based biochar prepared by co-pyrolysis of lignin and waste white clay as a modified precursor raw material, realizes high-value utilization of solid waste, and significantly increases the content of oxygen-containing functional groups on the surface of the adsorbent through combined modification of iron loading and nitric acid oxidation, optimizes the pore structure, and constructs a mesoporous-macroporous multi-level pore structure, which is beneficial to the diffusion and adsorption of BPA molecules. The prepared adsorbent provides a feasible path for efficient removal and degradation of BPA in water and regeneration of the adsorbent.

The invention discloses a method for preparing levoglucosenone by catalyzing cellulose pyrolysis through a sulfate-based donor. According to the method, cellulose and carrageenan are used as raw materials, a natural sulfate group in the carrageenan is used as a built-in catalytic source, the cellulose and the carrageenan are fully mixed and then placed in an inert atmosphere for co-pyrolysis, volatile components generated by pyrolysis are collected, and the liquid bio-oil rich in levoglucosenone is obtained after cooling. According to the method, an intrinsic functional group (sulfate group) of natural biomass is converted into a catalytic activity source, so that the green idea of catalytic conversion from biomass to biomass is realized, and a new green and sustainable catalysis way is provided; the method is low in production cost, simple in process, convenient to operate and high in yield and selectivity of the levoglucosenone, and has good industrial amplification and large-scale application potential.

The invention relates to the technical field of biomass energy and waste plastic treatment, and provides a co-pyrolysis system and method based on ash content regulation and dynamic wrapping, the system comprises: a biomass feeding unit, the biomass feeding unit comprises a first screw feeder; the waste plastic feeding unit comprises a second screw feeder; an inlet of the mixed reaction chamber is communicated with a discharge port of the first screw feeder and a discharge port of the second screw feeder, and a partition plate is arranged in the mixed reaction chamber; a spiral guide plate is arranged in the cracking reaction chamber, and the upper end of the cracking reaction chamber is communicated with the mixing reaction chamber through two channels; a combustion chamber, a cyclone separator and an ash content rotation pipeline. According to the co-pyrolysis system based on ash content regulation and dynamic wrapping, grading efficient conversion of light and heavy components is achieved, and the yield and quality of pyrolysis oil are improved.

The invention discloses a method for in-situ CO2 conversion and activation of Fe-K modified porous activated carbon and application of the Fe-K modified porous activated carbon. The method comprises the following steps: (1) dipping and drying: adding ferric citrate, potassium carbonate and a carbon material into water, fully dissolving and dispersing, heating at 50-90 DEG C to evaporate moisture to obtain a Fe-K loaded carbon material, and drying in a drying oven at 80-120 DEG C for later use; (2) high-temperature pyrolysis: carrying out high-temperature pyrolysis on the Fe-K loaded carbon material at 500-700 DEG C for 2-6 hours to obtain a Fe-K modified carbon material; and (3) blending pyrolysis: uniformly mixing the Fe-K modified carbon material and limestone in a mass ratio of (0.1-3): 1, carrying out high-temperature co-pyrolysis for 2-8 hours, and reacting at a constant temperature of 600-900 DEG C to obtain the Fe-K modified porous activated carbon. According to the method, carbon material activation and CO2 generated by limestone decomposition are linked, carbonate decomposition and charcoal activation are integrated, the carbon reaction activity is increased by introducing iron and potassium elements, in-situ reduction of CO2 generated in the carbonate decomposition process in the cement industry is achieved, and meanwhile the selectivity of in-situ CO2 conversion can be improved.

The application provides a method for realizing efficient leaching of heavy metal elements in contaminated soil based on co-pyrolysis of chlorine-containing plastics, and relates to the technical field of metal element extraction.The HCl generated by the combination of chlorine free radicals and hydrogen free radicals in the thermal degradation process of the chlorine-containing plastics is ingeniously combined with the leaching of heavy metals in contaminated soil, so that the dissociation and leaching of the heavy metals combined with the soil mineral lattice are promoted, the shortage of a large amount of acid and alkali reagents consumed in the existing chemical leaching process is made up, and thus the green leaching of heavy metal elements is realized without adding chemical reagents.Furthermore, the chlorine-containing plastics can be selected from waste plastics, and the resource disposal of plastic waste is also facilitated.

The invention provides a sludge and agricultural waste co-pyrolysis biochar remediation system and a method thereof. The method comprises the following steps: mixing dewatered sludge and agricultural wastes according to a dry weight ratio of (1: 0.5)-(1: 3); feeding the mixed material into a pyrolytic reaction device for two-stage co-pyrolysis: performing pyrolysis at 200-350 DEG C in an inert atmosphere in the first stage, and performing pyrolysis at 500-700 DEG C in the presence of carbon dioxide in the second stage; the obtained biochar is used for environmental remediation; the system comprises a pretreatment unit, a two-stage pyrolytic reaction unit, a product treatment unit and a pyrolytic gas energy recycling unit, and relates to the technical field of environmental protection and solid waste recycling, biochar with a carbon skeleton and a mineral mosaic structure is prepared through a synergistic pyrolysis process of a specific raw material ratio and multi-stage gas modulation, and the biochar energy is recycled. The material simultaneously has heavy metal stability and high pollutant adsorbability, and the aims of treating waste with waste and safely and efficiently repairing the environment are achieved.

The invention provides a co-pyrolysis raw material ratio intelligent optimization method and system, and relates to the technical field of data processing, and the method comprises the steps: obtaining raw material data; according to the raw material data, a co-pyrolysis reaction characterization characteristic data set under different matching conditions is constructed, and co-pyrolysis reaction characterization characteristics comprise multi-scale reaction characteristics and reaction track characteristics; constructing a dynamic feature data set according to the reaction trajectory features; based on the co-pyrolysis reaction feature data set and the dynamic feature data set, constructing a causal network of the co-pyrolysis raw material ratio; constructing a causal constraint reinforcement learning environment based on the causal network; based on the causal constraint reinforcement learning environment, determining a co-pyrolysis raw material ratio optimization strategy through a time sequence difference reinforcement learning algorithm; performing reversibility evaluation on the co-pyrolysis raw material ratio optimization strategy to determine a final strategy; and executing the final strategy.

The present application belongs to the technical field of solid waste resource, and particularly relates to a kind of nanoparticles prepared by rare earth hyperaccumulator and its preparation method and application. The present application uses simple mechanical crushing and high temperature calcination technology, directly processes functional materials from rare earth enriched hyperaccumulator biomass, and the prepared material has large specific surface area and strong weak acid acidity. When the material is used for co-pyrolysis with waste plastics, it can effectively catalyze plastic cracking, and the oil yield is as high as 70%. The catalytic effect is much higher than that of commercially available molecular sieve catalyst (ZSM-5), and it has broad application potential in the field of rare earth catalysis. The preparation method of the rare earth-based mesoporous nanoparticle stacking catalyst material is simple and easy to operate, and it is economical and environmentally friendly.

The invention discloses a method for preparing a carbon-based phosphorus-potassium fertilizer by using silicon-rich biomass, and relates to a preparation method of the carbon-based phosphorus-potassium fertilizer. The invention aims to solve the technical problems that the reversal effect of existing biochar on phosphorus fixation in saline-alkali soil is poor, and especially the improvement effect on soil with low phosphorus content is not obvious. The agricultural straw waste is used as a raw material, phosphoric acid microwave co-pyrolysis and atmosphere regulation co-pyrolysis technologies are combined, the process is simple and convenient, the cost is low, the large-scale production potential is achieved, in the preparation process, original components such as KCl and K2CO3 in the straw can react with phosphoric acid to generate compounds such as potassium metaphosphate with fertilizer efficiency, the effectiveness of phosphorus and potassium is further improved, and the production cost is reduced. Absorption of crops to phosphorus, potassium, silicon and other elements is promoted, the physical structure of saline-alkali soil can be effectively improved, the volume weight is reduced, the stability of aggregates is improved, alkalinity is neutralized, and soil fertility, water holding capacity and carbon sequestration potential are synergistically enhanced.

The present application belongs to the technical field of energy products, and particularly relates to a method for upgrading coal pitch and oil sludge by co-pyrolysis and a carbon black raw material, comprising the following steps: S1, pre-degradation: degrading organic alkali, thick oil ester, inorganic heavy metal ions and fillers in the oil sludge by actinomycetes and bacillus; the classification name of the bacillus is Bacillus arthriticus, the preservation address is China Center for Type Culture Collection, and the preservation number is CCTCC NO: M20232038; S2, co-pyrolysis: co-pyrolyzing the oil sludge after pre-degradation in step S1 under oxygen-rich fuel gas and carbon black tail gas CO2 and coal pitch, and obtaining a derivative. Through pre-degradation, co-pyrolysis, fractional distillation or reaction rectification, the utilization rate of oil product resources of the waste oil sludge is 85-90%, and the remaining 10-15% is used as filler carbon black.