2282results about "Waste based fuel" patented technology

The invention belongs to the field of microbial electrochemistry and solid organic waste recycling, and discloses a microbial electrosynthesis enhanced solid wastewater hydrolysis and anaerobic digestion biogas high-value utilization system coupling microbial electrosynthesis, organic solid waste electrochemical-biological synergistic hydrolysis oxidation and anaerobic digestion. The system comprises a cathode chamber and an anode chamber which are separated by an ion exchange membrane, an electrochemical driving device and an anaerobic digestion unit communicated with the anode chamber. And the cathode chamber is provided with a cathode electrode and an anaerobic acetic acid production microbial system and is communicated with biogas generated by anaerobic digestion, so that carbon dioxide in the biogas is reduced at the cathode to generate acetic acid and methane-enriched gas is output. The anode chamber is provided with an anode electrode, organic solid waste and a hydrolytic microorganism system are added, electrochemical-biological synergistic hydrolytic oxidation of the organic solid waste and hydrolysates of the organic solid waste is used as an anode reaction, oxygen evolution is inhibited, and oxygen transmembrane migration is reduced; and the hydrolysate in the anode chamber flows into the anaerobic digestion unit to produce biogas, so that the integrated operation of solid wastewater hydrolysis and biogas upgrading is realized.

A process and / or system for processing a pressurized gas mixture by membrane separation. Portions of the pressurized gas mixture are withdrawn and provided as a plurality of pressurized gas streams at successively lower pressures. Each portion, provided as a respective pressurized gas stream, is provided for processing in a respective membrane system, each of which is at a different pressure level. Partially purified streams produced by one or more membrane systems are provided for processing at lower pressure levels (e.g., where they are combined with one of the pressurized gas streams). Accordingly, costs associated with recycle compression are reduced and / or eliminated.

The present disclosure provides agronomically stable liquid agricultural compositions, methods of formulation thereof, and methods of application thereof. The agricultural compositions comprise nitrogen-fixing microorganisms and one or more of a buffering agent, a microbial stabilizer, and a physical stabilizer. The disclosed liquid agricultural compositions have a longer shelf life and greater ease of application than other existing dry and liquid formulations. The disclosed liquid agricultural compositions are stable for a period of thirty days or longer with low toxin accumulation and high microbial stability. The compositions are suitable for use on agricultural plant tissues or the environs thereof for providing a source of fixed atmospheric nitrogen to the agricultural plant. The compositions are used to increase crop yield and decrease yield variance.

The invention discloses a biomass boiler fuel adaptability enhanced feeding system and a control method. The biomass boiler fuel adaptability enhanced feeding system comprises a feeding device, a fuel pretreatment module, a multi-parameter detection module, a control unit and an execution mechanism. The feeding device comprises a screw feeder and a vibrating feeder which are arranged in parallel, outlets of the screw feeder and the vibrating feeder are converged into the same blanking channel, a wear-resistant ceramic lining plate is laid on the inner wall of the channel, and a pneumatic arch breaker is mounted at the bottom of the channel. Through a multi-stage pretreatment and intelligent feedback control cooperation mechanism, the adaptability of the complex biomass fuel is remarkably improved. The two-stage pretreatment module effectively breaks caking, screens out overrun particles and adjusts the water content, and the blocking risk is eliminated from the source; multi-parameter real-time detection is combined with a self-adaptive control algorithm, the feeding rate and the air-coal ratio are dynamically optimized, the combustion stability is ensured, and the heat efficiency is remarkably improved; due to the abnormal working condition self-diagnosis function, the manual intervention frequency is reduced, and multi-fuel combustion of multiple components in any proportion is supported.

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.

A method of producing an agglomerate mainly composed of carbon of biomass origin is provided. The method of producing an agglomerate mainly composed of carbon includes a grinding step of grinding biomass having a volatile matter of 1 mass% or more and less than 20 mass% on a dry basis to obtain a biomass powder having a maximum particle size of 300 µm or less, and a hot pressing step of compacting the biomass powder at a temperature included in a temperature range of 600 °C or more and 1250 °C or less in an oxygen-deprived environment to obtain an agglomerate.

The invention discloses a coal bed gas biological yield increase effect dynamic monitoring and evaluation method which comprises the following steps: arranging a multi-parameter sensor in a target coal bed gas well site, and collecting background data before bacterium injection; injecting a microbial bacterial solution and a nutrient solution into the coal seam according to the experimental design, and recording parameter information in the injection process; periodically collecting a gas production sample, and analyzing gas components; analyzing microbial community structure and abundance change in the water sample; combining the gas generation rate, the isotope characteristics and the microflora analysis result to identify a gas production path and calibrate a key functional flora; and constructing a mathematical model containing microbial activity, coal quality conversion and gas production efficiency, forming an evaluation index system, and outputting field process optimization suggestions based on the model. According to the method, a scientific basis is provided for dynamic optimization of the yield increasing process, and compared with a traditional laboratory method, the method can achieve systematic analysis of the in-situ microorganism process and quantitative evaluation of the gas production effect, and has good field adaptability and popularization value.

The invention discloses modified biogas residue-based hydrothermal carbon, a preparation method thereof and a dry digestion method for kitchen waste, and belongs to the technical field of waste organic matter recycling. The preparation method comprises the following steps: soaking biogas residues in a phosphoric acid solution to obtain pretreated biogas residues; mixing the pretreated biogas residues, transition metal salt, biochar loaded with vitamin B12 and water with the mass being 8-15 times that of the pretreated biogas residues, and performing hydrothermal reaction for 1-4 hours under the conditions that the temperature is 180-250 DEG C and the pressure is 1.5-4 MPa to obtain a hydrothermal product; and activating the hydrothermal product for 1-2 hours under the protective atmosphere of 300-400 DEG C to obtain the modified biogas residue-based hydrothermal carbon. The surface Fe-Cu composite oxide sequentially catalyzes and oxidizes H2S into elemental sulfur and sulfate ions, the vitamin B12-loaded biochar can promote MA directional proliferation, the sulfate ions can competitively inhibit SRB substrate uptake, the quantity ratio of MA to SRB is increased, and the methane production efficiency is effectively improved.

The invention discloses a biomass fuel rod and a production method and application thereof, and belongs to the technical field of biomass fuels, the biomass fuel rod comprises the following components by mass: 60-80 parts of a biomass raw material, 10-20 parts of a binder, 1-5 parts of a combustion improver, 3-8 parts of a sulfur and chlorine fixing agent, 1-3 parts of a denitration agent, and 2-5 parts of an ash content regulator. The production method specifically comprises the following steps: (1) pretreatment: crushing a biomass raw material until the particle size is less than or equal to 2mm, and carrying out pretreatment by adopting baking semi-carbonization; (2) mixing: sequentially adding a binder, a combustion improver, a sulfur-fixing and chlorine-fixing agent, a denitration agent and an ash content regulator which are ground until the particle size is less than or equal to 2mm, and stirring and mixing for 5-10 minutes; (3) forming: carrying out extrusion forming by adopting a twin-screw extruder under the pressure of 15-25MPa and the temperature of 80-100 DEG C to obtain a fuel rod with the density of 1.2-1.4 g / cm < 3 >; the production method is simple and easy to implement, the combustion performance of the produced fuel rod is good, and the combustion efficiency and the environmental protection property are improved.

The application discloses a method for efficient denitrification and decarburization of kitchen waste and sludge co-fermentation anaerobic digestion effluent, which removes part of COD and ammonia nitrogen in the influent sludge by using a first SNAD, and maintains a certain amount of free ammonia of a certain concentration due to the high concentration of ammonia nitrogen and the high pH of the influent, so as to maintain the inhibition effect on nitrifying bacteria and ensure the conversion of part of the ammonia nitrogen into nitrite nitrogen, and the high activity of anaerobic ammonia oxidation bacteria is ensured in the first SNAD by limiting the aeration amount, so that the ammonia nitrogen and nitrite can be further removed; the effluent enters a nitrification tank, and the ammonia nitrogen is nitrified into nitrate nitrogen under the condition of nitrifying bacteria and sufficient aeration amount, and then enters a denitrification tank, and the denitrification process is carried out under the condition of heterotrophic denitrifying bacteria and sufficient carbon source, so that most of the nitrate nitrogen in the system is converted into nitrogen gas and removed, finally, the clear liquid is discharged after being filtered by an MBR membrane in a membrane tank, so as to achieve the purpose of efficient denitrification and decarburization of kitchen waste anaerobic digestion effluent.

Methods and systems are provided for the conversion of waste plastics into various useful downstream recycle-content products. More particularly, the present system and method involves pyrolyzing one or more waste plastics into various pyrolysis products, including a carbon solids-containing pyrolysis residue, and then subjecting the pyrolysis residue to partial oxidation gasification to thereby form a syngas composition.

To provide a biomethane production method and a biomethane production apparatus by which an amount of biomethane to be obtained can be increased, and operation can be performed stably.SOLUTION: A biomethane production method includes a methane fermentation process of processing organic waste 1 containing hardly decomposable solid matters in a methane fermentation tank 11 where methane bacteria exist. In the methane fermentation process, when supplying at least one of organic acid 2 and biodegradable resin and hydrogen 3 into the methane fermentation tank 11, a ratio of a supply amount of the hydrogen 3 to a supply amount of the organic acid 2 and the biodegradable resin is set to 0.10 L / gCOD or more and 1.50 L / gCOD or less such that pH inside the methane fermentation tank 11 becomes 7.0 or more and 9.0 or less.SELECTED DRAWING: Figure 1

The invention relates to the technical field of pest prevention and control, in particular to a method for treating pine wood nematode infected wood through poria cocos. The method comprises the following steps: cutting down current-year epidemic wood, and treating tree heads, tree trunks and boughs to complete peeling and tendon retaining treatment; uniformly cutting the trunk and the boughs into standard cut-logs; the method comprises the following steps: selecting fresh poria cocos sclerotium skin tissues as strains, and cutting according to an area greater than 50% of a cross section; pit pits are dug in the sunny slope; laying small branches on the bottom layer, placing the cut-logs in the pits, fixing the cut-logs with non-woven fabrics after inoculation, covering the upper layer with thin branches and leaves, and covering with soil; the two-stage biological process of mycelium planting, propagation expanding and pine wood nematode and medium insect killing is sequentially completed through a soil heat and moisture preservation environment; the propagation path of pine wood nematodes is blocked through the natural isolation effect of soil, deadwood obtained after poria cocos is subjected to biological verification and then smashed on site to return to forests or be made into fuel particles, and harmless and resource recycling of epidemic wood is achieved. According to the method, the problems of pine wood nematode propagation and epidemic wood treatment are synchronously solved.

The invention belongs to the technical field of biomass anaerobic treatment, and particularly discloses a method for preparing methane through biomass anaerobic digestion based on oxygen nano bubble water. Biomass, activated sludge, oxygen nano bubble water and water are mixed, anaerobic digestion treatment is carried out, and methane is obtained. By introducing high-stability oxygen nano bubble water, a suitable micro-aerobic environment is provided for facultative anaerobic bacteria, so that the metabolic activity of the facultative anaerobic bacteria is activated, the decomposition and conversion of complex organic matters are accelerated, and the efficiency of a hydrolytic acidification stage is remarkably improved. Compared with a traditional chemical or physical pretreatment mode, the method has the advantages that interference on anaerobic flora is avoided, the degradability of a substrate is effectively enhanced, and more sufficient organic acid is provided for a subsequent methane production stage, so that the yield of methane 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 utility model discloses a treatment device for preparing biomass energy from forestry and agricultural residues, and relates to the technical field of biomass energy preparation, the treatment device comprises a bottom plate and a drying box, the drying box is arranged above the bottom plate, and a plurality of fixing pipes are distributed on the upper surface of the bottom plate in a rectangular array mode; a movable rod is movably sleeved with the fixed rod, the upper end of the movable rod is fixedly connected with the drying box, a hollow plate is arranged on one side of the interior of the drying box, a plurality of nozzles are fixedly arranged on one side of the hollow plate, a transverse pipe is arranged on the other side of the hollow plate in a communicating mode, and one end of the transverse pipe extends out of the drying box. And an air heater is fixedly arranged on one side of the upper surface of the bottom plate, an air outlet of the air heater is fixedly connected with a corrugated pipe, and the upper end of the corrugated pipe communicates with the transverse pipe. According to the biomass energy drying device, prepared biomass energy can be raised and air-dried, and the drying efficiency of the biomass energy can be greatly improved.

The present disclosure provides agronomically stable liquid agricultural compositions, methods of formulation thereof, and methods of application thereof. The agricultural compositions comprise nitrogen-fixing microorganisms and one or more of a buffering agent, a microbial stabilizer, and a physical stabilizer. The disclosed liquid agricultural compositions have a longer shelf life and greater ease of application than other existing dry and liquid formulations. The disclosed liquid agricultural compositions are stable for a period of thirty days or longer with low toxin accumulation and high microbial stability. The compositions are suitable for use on agricultural plant tissues or the environs thereof for providing a source of fixed atmospheric nitrogen to the agricultural plant. The compositions are used to increase crop yield and decrease yield variance.

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.

A method to produce a halogen-depleted gas is described. The method providing a gas derived from and / or including a source of biogas, mixing said gas with a source of hydrogen to produce a processed gas mixture including an acid, and separating said acid from said processed gas mixture. Sulfur, oxygen, carbon dioxide removal processes are integrated into the method. Production of secondary products, and removal thereof, are included. Pre and post processing may be integrated, and production of products is described.

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 anaerobic fermentation intelligent monitoring method based on edge calculation, and relates to the technical field of sludge anaerobic fermentation monitoring, and the method comprises the following steps: collecting time series data of multidimensional parameters such as temperature and pH value in real time through edge monitoring nodes, and extracting dynamic characteristics such as change rate and trend by using a sliding window technology; predicting the dynamic characteristics of the next time step by combining a machine learning model, comparing the dynamic characteristics with a preset threshold, and then generating an abnormal early warning signal in time; data processing and analysis are locally completed through edge computing, transmission delay and cloud pressure are reduced, monitoring data, features, prediction results and early warning signals are uploaded to the cloud, centralized management and visualization of data are achieved, and therefore accurate monitoring and early warning of abnormity in the fermentation process are achieved, manual intervention is effectively reduced, management cost is reduced, and the fermentation efficiency is improved. And the intelligent and scientific level of sludge anaerobic fermentation process management is obviously improved.

The invention discloses a pretreatment method for increasing the yield of anaerobic fermentation methane of a lignocellulose material, and belongs to the technical field of high-efficiency anaerobic fermentation methane production of organic solid waste. The method comprises the following steps: (1) crushing straws; (2) mixing the straw powder and deionized water according to a mass ratio of 1: (19-21), stirring at a rotating speed of 120-180r / min, treating for 22-26h, fully and uniformly mixing, adjusting the pH value of the system to 3.4-3.7, adding 0.08-0.12 wt% of cellulase according to the mass of the straw, and carrying out enzymolysis at 49-51 DEG C for 2-4d to obtain an enzymatic hydrolysate; (3) yeast pre-fermentation: inoculating 4-6% v / v activated angel high-activity dry yeast into the enzymatic hydrolysate in the step (2) for anaerobic pre-fermentation, wherein the pre-fermentation time is 16-20 hours; and (4) anaerobic fermentation for methane production: adding 20-30% v / v of introduction sludge into the fermentation system in the step (3), and carrying out anaerobic fermentation for methane production, wherein the fermentation temperature is 36-38 DEG C. Compared with the prior art, the method has the advantages of being high in adaptability, short in treatment period, good in economic benefit, free of environmental pollution and the like, and has certain guidance and inspiration effects on engineering of producing methane from straw.

A conveying device used for fuel in a fossil fuel power station. The conveying device comprises a bearing unit (100), which comprises a base component (101), a support bed (102) arranged on a side face of the base component (101), a plurality of bearing components (103) arranged on the support bed (102), driving wheels (104) symmetrically arranged at two ends of the support bed (102), and a conveyor belt (105) sleeved on the two driving wheels (104); and a conveying unit (200), which comprises a conveying component (201) located above the base component (101) and four helical guide blades (202) arranged inside the conveying component (201), wherein the four helical guide blades (202) are helically distributed in a staggered manner inside the conveying component (201). The present invention changes the manner in which fuel is vertically conveyed during a conventional conveying process. The helical guide blades (202) in a helical arrangement are used to buffer vertically falling fuel, thereby reducing the impact of the fuel on the conveyor belt (105) and prolonging the service life of the conveyor belt (105); and by means of providing fuel shifting units (400) to push and stir the fuel in conveyance, the occurrence of a blockage in the conveying unit is effectively avoided, and the conveying effect is ensured.

The application provides a fruit peel biochar and a preparation method and application thereof in reinforcing residual sludge methanogenesis, and belongs to the technical field of solid waste resource treatment. The preparation method of the fruit peel biochar comprises the following steps: drying, carbonizing, and grinding banana peels after being cut into pieces to obtain the fruit peel biochar; the heating speed in the carbonizing process is 10-15 DEG C / min, the pyrolysis temperature in the carbonizing process is 500-600 DEG C, and the holding time under the pyrolysis temperature is 1-2 h. The fruit peel biochar has the advantages of strong alkalinity, and the residual sludge is pretreated first, the hydrolysis rate of the residual sludge is improved, the barrier of macromolecular substance dissolution is broken, more organic substrates are provided for the subsequent anaerobic digestion process, meanwhile, the biochar added in the pretreatment stage can still reinforce the effect of the anaerobic digestion in the subsequent stage, and a more competitive new idea for the application of the biochar in the anaerobic digestion is provided.

Methods for stimulating plant growth and / or promoting plant health using free enzymes or recombinant microorganisms that overexpress enzymes are provided. Plant seeds coated with free enzymes or recombinant microorganisms that overexpress enzymes are also provided. Compositions comprising a fertilizer and an enzyme or a recombinant microorganism that overexpresses an enzyme are provided. Modified enzymes having ACC deaminase activity, recombinant microorganisms expressing the modified enzymes, plant seeds treated with the modified enzymes or recombinant microorganisms, and methods for stimulating plant growth and / or promoting plant health using the modified enzymes or recombinant microorganisms are also provided.

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.

The utility model discloses a biomass filter device, including support seat, shell, drive motor, roller and filtration pore, shell is fixed installation in the both sides of support seat inner wall, drive motor is fixed installation in the left side of shell, roller is fixed connection in the output end of drive motor, and the filtration pore is fixed connection in the support seat inner wall. The right side of the roller is movably connected with the right side of the inner wall of the shell through a bearing, and the filtering holes are formed in the surface of the shell. By arranging the annular scraping ring, the connecting block, the threaded block, the reciprocating assembly and the lifting assembly, the lifting assembly can effectively drive the connecting block to enable the annular scraping ring to be adjusted to the surface of the roller, then the reciprocating assembly drives the threaded block to enable the arc-shaped scraping ring to scrape and clean the surface of the roller, and the problem that the surface of the roller is scraped and cleaned when the roller is used for filtering is solved. The problems that due to lack of a cleaning structure, a part of biomass particles can be clamped into filter holes to cause blockage, and due to lack of the cleaning structure, a user difficultly cleans the particles in the filter holes are solved.

Methylobacterium strains that enhance early growth of plants, improve propagation / transplant vigor, increase nutrient uptake, improve stand establishment, improve stress tolerance, and / or increase a plant's ability to utilize nutrients are provided herein. Also provided are methods to identify Methylobacterium strains that improve nitrogen use efficiency in various crop plants.

A composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content alpha olefin or by deducting from a recycle inventory a recycle content value applied to an alpha olefin composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by an alpha olefin manufacturer has its origin in recycled waste and / or pyrolysis of recycled waste and / or in thermal steam cracking of recycle content pyoil.

The invention relates to the technical field of biomass fuel processing, in particular to a biomass fuel raw material processing production line and a processing technology. Comprising a smashing assembly and a drying cylinder installed at the bottom of the smashing assembly, a driving assembly used for pushing raw materials to move is arranged in the drying cylinder, and a heating assembly is further arranged at the bottom of the drying cylinder. The crushing assembly is directly mounted at the top of the drying cylinder, so that a compact integrated structure is formed, and material transfer links and site occupation are effectively reduced. And a driving assembly is arranged in the drying cylinder, so that mechanical propulsion of the materials in the drying process is realized, and the continuity and stability of the processing flow are guaranteed. And meanwhile, a heat source can directly and efficiently act on the materials through the layout of the bottom heating assembly, and the heat energy utilization rate and the drying efficiency are remarkably improved. The overall design simplifies the operation process, and reduces the equipment investment and operation cost.