32results about How to "Improve carbonization rate" patented technology

The invention discloses a charcoal fertilizer, prepared from the following raw materials in percentage by weight: 10-50% of charcoal powder, 20-70% of compound fertilizer and 5-30% of adjuvant, wherein the charcoal powder is obtained by putting straws in a carbonization furnace for dehydration and deoxygenation treatment and smashing the straws to a particle size of not more than 0.5mm after high-temperature carbonization. A preparation method of the charcoal fertilizer comprises the following steps: feeding the straws into the carbonization furnace; performing the dehydration and deoxygenation treatment for 1-2 hours at a temperature of 100-250 DEG C; carbonizing the straws at a high temperature of 600-700 DEG C for 30-240min; cooling the carbonized product and then smashing the carbonized product to form the charcoal powder with the particle size of not more than 0.5mm; uniformly mixing the charcoal powder, the compound fertilizer and the adjuvant in proportion to obtain a mixture and then pelleting the mixture to obtain pellets; cooling and screening the pellets to a particle size of 1.5-4.75mm; packing the screened pellets. The charcoal fertilizer disclosed by the invention has the advantages of an extensive source of the raw material straws, a good carbonization effect, high carbon content, conformity with the concept of environmental protection, simplicity in preparation technique, low energy consumption, high product strength and capability of processing the raw materials in a centralized manner and obviously increasing the utilization rate and quality stability of the fertilizer. The invention further discloses an application of the charcoal fertilizer in crop growth.

A hydrothermal preparation method of a carbon quantum dot used as a visible light catalytic photosensitizer is characterized by comprising the following steps: taking larches as raw materials; carrying out high-temperature high-pressure hydrothermal process treatment on the raw materials; centrifugally filtering and removing a dark brown solid product to obtain a light yellow liquid product; centrifuging the liquid product at high speed; controlling centrifugal rotation speed and centrifugal time; removing insoluble small particle impurities; carrying out dialysis by using a certain molecular weight of dialysis bag to remove unreacted sugars, salt contents and the like; then carrying out concentration to obtain a target product, namely a water-soluble fluorescent carbon quantum dot. The water-soluble fluorescent carbon quantum dot is compounded with TiO2 to prepare a photocatalytic composite system; by taking antibiotics as models, photocatalytic degradation performance of the composite system on the model and interaction efficiency of the carbon dot used as the photosensitizer are inspected. The operation process has the main characteristics that larches with rich resources in Heilongjiang province are used as raw materials; the raw materials are environment-friendly, are low in cost and are easy to get; hydrothermal reaction is low in temperature and low in pressure, addition of passivating agents such as acid, alkali and salt is not needed, the product is water-soluble and has a certain fluorescent effect, the reaction process is simple to operate, and the cost is low.

The invention discloses biochar fertilizer with the effect of balancing fertilizer-water distribution. The biochar fertilizer is prepared from 60-80 parts by weight of biochar, 20-40 parts by weight of composite fertilizer, 10-20 parts by weight of a broth and 15-25 parts by weight of additives. The biochar fertilizer utilizes crop straws as raw material components. The straw raw materials have a low cost and are easily available. Through dehydration and deoxygenation treatment and high temperature charring crushing, biochar powder is obtained. The biochar fertilizer has good charring effects and char content of 25% or more. A straw charring rate is high, a char fertilizer yield is high, use effects are good, and the biochar fertilizer can passivate soil heavy metals and improve soil microbe vitality. The biochar fertilizer has a large specific surface area, improves soil organic matter content, can be used as low cost non-chemical fertilizer and guarantees yields in organic agriculture and green agriculture. The preparation method of the biochar fertilizer has simple processes, is controllable and can be implemented easily.

The invention discloses organic fertilizer for camellia oleifera planting. The organic fertilizer is prepared from the following raw materials in parts by weight: 30-40 parts of peanut cake, 20-25 parts of fermented soybean curb residue, 15-20 parts of vegetable waste, 10-20 parts of sweet potato vine ash, 5-15 parts of mushroom residue, 15-20 parts of biocarbon, 13-18 parts of white fungus leftover, 6-10 parts of carbonized bark, 20-30 parts of cow dung, 10-15 parts of grass ash, 5-13 parts of nano zeolite, 3-7 parts of nano bentonite, 10-15 parts of egg shell powder, 5-10 parts of vinegar residue, 11-16 parts of herba menthae extract liquid, 6-10 parts of fructus forsythiae extract liquid, 5-10 parts of cortex cinnamomi oil, 3-7 parts of a fermenting agent, 3-8 parts of a compound biological bacterial preparation, 5-10 parts of silkworm excrement, 3-6 parts of amino acid chelated microelement and 1-2 parts of borax. The organic fertilizer provides a great amount of nutrient elementsneed by growth of camellia oleifera, not only can improve the yield of camellia oleifera seeds, but also can improve a soil structure.

The invention discloses insect preventing and bacteria inhibiting dedicated organic fertilizer for camellia oleifera planting. The fertilizer is prepared from the following raw materials in parts by weight: 30 to 40 parts of tea dregs, 20 to 25 pars of fermented soybean, 15 to 20 parts of pomace, 10 to 20 parts of sweet potato vine ash, 5 to 15 parts of mushroom dregs, 15 to 20 parts of charcoal,13 to 18 parts of kelp leftovers, 6 to 10 parts of carbonized fruit tree branches, 20 to 30 parts of chicken manure, 10 to 15 parts of plant ash, 5 to 13 parts of vermiculite, 3 to 7 parts of nano medical stone, 10 to 15 parts of clam shell powder, 5 to 10 parts of distillers' grains, 11 to 16 parts of herba violae extracting solution, 6 to 10 parts of pyrethrum extracting solution, 5 to 10 partsof lime, 1 to 2 parts of wormwood powder, 3 to 7 parts of a fermenting agent, 3 to 8 parts of a compound biological bacteria preparation, 5 to 10 parts of rapeseed cake, 3 to 6 parts of powdered rockphosphate and 1 to 2 parts of microelements. The organic fertilizer disclosed by the invention can provide a lot of nutrients for camellia oleifera growth, can improve camellia seed yield and can improve soil structure.

The invention provides a separation method of oily sludge and application of sludge impurities to preparation of active carbon. The separation method comprises the following steps of (1) pretreating the oily sludge: putting the oily sludge under microwave conditions for microwave treatment; performing demulsification treatment and dewatering on the oily sludge subjected to microwave treatment to obtain pretreated oily sludge; (2) separating the oily sludge: in a nitrogen environment, putting the pretreated oily sludge under heating conditions; performing dry distillation; respectively collecting gas phase and impurities after dry distillation. The application concretely comprises the steps of under the existence condition of activating agents, under the inert gas protection conditions, putting the impurities after the dry distillation under the temperature condition of 280 to 350 DEG C; performing pre-activation for 20 to 30 min; then, performing activation for 1 to 2 h under the temperature condition of 700 to 850 DEG C to obtain the high specific area active carbon. The separation method achieves the effects that the separation effect is good; the separated impurities can be effectively utilized.

The invention relates to a microwave-enhanced biomass carbonization treatment method which comprises the following steps: (1) mixing biomass, an acid and a catalyst to obtain a mixture; and (2) carrying out microwave treatment on the mixture obtained in the step (1) to obtain the carbon material. According to the method, the reaction process of the biomass and sulfuric acid is enhanced by utilizing microwaves, meanwhile, rapid separation of biomass charcoal and the sulfuric acid is realized, the reaction steps are reduced, the energy consumption is reduced, and low-cost carbonization treatmentof the biomass is realized. The biomass charcoal obtained by the reaction has the advantages of rich raw material sources, low price, large specific surface area, developed pore structure, good thermal stability and chemical stability and the like.

The invention discloses a high-efficiency carbonization furnace, which comprises a furnace body, a main fire pipe, a cold air pipe, a fire accessible duct, fire tubes, a flame inlet passage, an fume outlet duct, a fume outlet pipe, U-shaped grooves, a wood gas flue, a water jacket (or snaking hollow section), wood gas chimney and the like. The periphery of the carbonization furnace is provided with a plurality of the U-shaped grooves, and the inside of the carbonization furnace is provided with a plurality of the fire tubes of which two ends are connected with the fire accessible duct and the fume outlet duct respectively. Biomass fuels are placed in the carbonization furnace, the cover board of the furnace body is covered, flue gas passes through the small fire tube to heat the biomass fuels, and the carbonization is started and speeds up with the continuous rise of the temperature. When the carbonization of wood charcoals is finished, an air blower is started; and cool air enters the cold air pipe and the small fire tube 6 to absorb heat of the wood charcoals and flows out from the fume outlet duct to enter a heat drying chamber for drying the raw materials of the biomass fuels. Wood tar and the wood gas generated during the carbonization flow into the wood gas fuel along the U-shaped grooves, and the wood tar is cooled by the water jacket (or snaking hollow section) and changed into solid.

The invention relates to a celery-biochar deodorizing mosquito repellent and a preparation method therefor and belongs to the technical field of deodorization and mosquito repelling. In order to solvethe problem that the existing deodorants cannot simultaneously repel mosquitoes, the invention provides the celery-biochar deodorizing mosquito repellent. The celery-biochar deodorizing mosquito repellent is prepared from the following ingredients in parts by weight: 45-55 parts of celery biochar, 10-15 parts of alum, 20-30 parts of zeolite, 4-6 parts of crude extract of celeries, 6-10 parts of herba menthae volatile oil, 6-10 parts of folium artemisiae argyi volatile oil, 3-4 parts of radix angelicae extract and 8-10 parts of water. According to the celery-biochar deodorizing mosquito repellent and the preparation method therefor, the celery biochar, which is prepared through high-temperature carbonization under anoxybiotic conditions, has a rich micropore structure and has a relativelyhigh adsorptive action on contaminants in air. The ethanol crude extract of the celeries is added into the celery biochar, and thus, a mosquito-repelling effect is increased on the basis of deodorization; and effective ingredients of folium artemisiae argyi, herba menthae and radix angelicae are added in an assisting manner, so that the mosquito-repelling effect can be enhanced. By applying the celery-biochar deodorizing mosquito repellent to the field of deodorization and mosquito repelling, the cost can be reduced, and the effects of simultaneously deodorizing and repelling the mosquitoes are achieved.

A process for manufacturing a polybenzoxazine monomer, crosslinking the latter, and using the crosslinked product to form an ablative thermal protection system for a thruster nozzle or atmospheric reentry body.