117results about How to "High lignin content" patented technology

The invention provides a method to remove black liquor by a presser from the high rigidity pulp prepared by cooling the grass materials. Send the cooked pulp which has the rigidity of potassium permanganate value 16-28 (equals to karber value 24-50) into the inlet of the presser for pressing. The pulp discharges from the outlet after removing the black liquor. The invention aims at pressing the low concentration and high rigidity pulp prepared by cooling the grass materials to remove the black liquor. It prepares for the necessary washing and bleaching steps during the processing, advances the bleaching effect and saves the necessary chemicals for bleaching, which is an economic and environmental protection method.

The invention relates to composite components and methods of producing composite components. In yet another embodiment, the present invention relates to a method of producing a composite component using anaerobically digested biomass. In still yet another embodiment, the method further comprises using liquid effluent from the digester. In still yet another embodiment, the method further comprises wet-mat forming and cold pressing the anaerobically digested biomass and wet-mat drying under heat and pressure.

The invention discloses a production process of an organic and inorganic compound fertilizer; the organic and inorganic compound fertilizer is prepared by mixing straw with a phosphatic fertilizer, a nitrogenous fertilizer, livestock manure, an inorganic salt, an efficient rotten bacterium agent and a conditioner for fermentation reaction to obtain organic matter, mixing the organic matter with an inorganic fertilizer produced by mixing urea, monoammonium phosphate and potassium chloride; the produced inorganic organic compound fertilizer is simple in production process, easy to operate, suitable for all kinds of vegetables, fruit trees, flowers, and the like, and quick in effect, can enable products to come into the market earlier, is better in quality, and is a pure natural green fertilizer with high quality, high content and high utilization rate.

The invention discloses a method for preparing magnetic biological carbon by utilizing traditional Chinese medicine residues, the magnetic biological carbon and application thereof and belongs to the field of biomass resource utilization. The method comprises the following steps: after impregnation pretreatment of the traditional Chinese medicine residues and sodium carbonate, performing ion salt impregnation and high-temperature anaerobic activation, washing, drying and the like to obtain the magnetic biological carbon. The method has the characteristics of being simple in production process, highly available in raw materials, high in product solid-liquid efficiency and the like. The method disclosed by the invention realizes the resource of the traditional Chinese medicine residues, has great significances in expanding the use of wastes extracted from the traditional Chinese medicines and expanding the source and the application scope of biological carbon adsorbents and can be widely applied to the water treatment field, thereby having good economic benefits and social benefits.

The invention provides a biomass pellet fuel and a preparation method thereof. The biomass pellet fuel comprises the following components, by weight: herbivorous animal manure, agricultural waste, illegal cooking oil, calcium oxide, calcium sulfate, propionic acid, kaolin, diatomaceous earth, bentonite, calcium peroxide, aluminum hydroxide, propylene glycol, polyvinyl alcohol, an oxygenate, an antiknock agent, a combustion improver, and a bulking agent. The biomass pellet fuel has low water content and high lignin content. According to the invention, a large amount of agricultural waste and animal manure are utilized. Air pollution caused by the activities of burning agricultural waste is greatly reduced, and animal manure can be effectively treated, such that recycling application value is improved, and the fuel is more environment-friendly. Compared to conventional biomass pellet fuels, the biomass pellet fuel provided by the invention has the advantages of high combustion value, long combustion time, no harmful gas emission after combustion, and no corrosion to combustion equipment.

The present invention provides biomass fuel and a preparation method therefor. The biomass fuel comprises the following ingredients in parts by weight: lignin, agricultural wastes, sea mud, sepiolite flocking, aluminum oxide, silane coupling agents, ammonium chloride, dimethyl silicone oil, yeast extract powder, capsaicin, di-tert-butyl hydroquinone, oxygenates, a shock-resistant and antiknock agent, a combustion improver, and a bulking agent. The biomass fuel has low moisture content and high lignin content. With the use of a large amount of agricultural wastes, air pollution caused by burning agricultural wastes and other activities is greatly reduced, and recycling utilization value is improved, so that the biomass fuel is more environmentally friendly. Compared with conventional biomass fuel particles, the biomass fuel provided by the present invention has a high fuel value, a long burning time, no discharge of harmful gas after combustion, and no corrosion on a combustion device.

The present invention relates to plastic materials comprising lignin and poly (butylene succinate) (PBS) to methods of manufacturing those plastic materials and to articles obtained by molding the plastic materials of the invention. Since PBS can be obtained from renewable sources, the present invention also provides for bioplastic materials comprising lignin and PBS. The present invention also provides for plastic materials comprising lignin and PBS and at least one fiber and to articles obtained from those plastic materials that are degradable, compostable and recyclable.

The invention provides methods for decreasing lignin content and for increasing the level of fermentable carbohydrates in plants by down-regulation of the NST transcription factor. Nucleic acid constructs for down-regulation of NST are described. Transgenic plants are provided that comprise reduced lignin content. Plants described herein may be used, for example, as improved biofuel feedstock and as highly digestible forage crops. Methods for processing plant tissue and for producing ethanol by utilizing such plants are also provided.

A disease resistant inducing agent for plants contains beta-1,3 glocosan, extract of yeast cell, wetting agent and disperser.

The invention relates to biomass particle fuel which comprises the following components in parts by weight: 40-70 parts of animal waste, 50-80 parts of biomass, 20-35 parts of gangue powder, 12-20 parts of bulking agent and 20-28 parts of combustion improver. The biomass particle fuel is low in water content and high in lignin content; and the abundant animal waste and the abundant biomass are utilized, so that pollution of activities such as animal waste incineration to air is greatly reduced, the biomass is effectively treated, a recycling value is increased, and the biomass particle fuel ismore environment-friendly. Compared with the conventional biomass particle fuel, the biomass particle fuel is high in combustion value and long in combustion time, has no harmful gas discharge aftercombustion, and cannot corrode combustion equipment.

The invention provides a yield-increasing regulator used for expanding the ear of grains, increasing the grains and resisting the lodging for the corn, and a preparation method and an application thereof. The regulator contains the following components by certain weight percentage: a plant growth regulator, a promoting agent, a speader, absolute ethyl alcohol and water for the rest; wherein, the growth regulator is florel, gibberellin and 6-furfuryl aminopurine, the promoting agent and the speader are selected from tween 20, tween 40, tween 60, tween 80 or tween 85. The regulator has the double functions of strengthening the lodging-resistant and increasing yield, and is characterized by innocuity, no side effect, low cost, convenient usage and the like.

The invention provides a method for coproducing methane and solid formed fuel by using herbaceous wood fibers as a raw material. The method comprises the following steps of: (1) material crushing: reducing the particle size of the herbaceous wood fiber raw material to be below 40 mm; (2) methane fermentation: controlling the solid concentration of methane fermentation to be 20%-40%; (3) methane residue drying, which ensures the water content of the dried methane residues is 6%-20%; (4) secondary crushing: performing the secondary crushing for the dried methane residues to ensure that the particle size is less than 5 mm; (5) compression forming; and (6) cooling and packaging. The method solves the problem of the disposition of the methane residues, realizes full energy utilization of resources and improves the economic benefit of straw utilization.

The invention relates to relates to the biological energy field, and concretely relates to a biomass fuel having a high fuel value, and a preparation method thereof. The biomass fuel having a high fuel value comprises 20-40wt% of tree branch, 30-50wt% of bamboo sawdust and 20-40wt% of tree leaf. The biomass fuel has a low water content and a high lignin content; and compared with routine biomass fuel particles obtained after the compression molding of straws, the biomass fuel obtained in the invention has the advantages of high fuel value, long combustion time, and no emission of harmful gases or acidic gases after the combustion.

The invention relates to the field of fruit and vegetable preservation, in particular to a storage and preservation method for wild rice shoots. The method includes the following steps: fresh wild rice shoots are precooled, and are then stored in a hypobaric refrigerator with the temperature of 1 DEG C to 3 DEG C, the storage pressure of 70KPa to 80KPa and the relative humidity of 85 to 95 percent. The method is easy to operate, and can evidently delay the lignifications process of wild rice shoots, and the storage period can reach 60 to 65 days.

The invention discloses a flame-retardant ABS composite material. The flame-retardant ABS composite material is prepared from, by weight, 60-80 parts of ABS resin, 8-15 parts of modified lignin, 5-15 parts of organic silicon flame retardant, 5-12 parts of corn straw power, 5-12 parts of chestnut shell powder, 2-5 parts of ginkgo leaves, 5-10 parts of ABS-g-MAH and 0.5-1 part of antioxidant. A preparation method of the flame-retardant ABS composite material includes the following steps that the ginkgo leaves are cleaned thoroughly, air-dried and smashed into powder of 10-20 mesh; 2, the smashed ginkgo leaves are mixed with the corn straw power and the chestnut shell powder, and the mixture is put for 1-2 days; 3, mixing is performed; 4, melt extrusion, cooling and granulation are performed to obtain the flame-retardant ABS composite material. Waste resources are recycled, and the prepared product is good in flame-retardant effect and good in mechanical performance.

A process is defined for the continuous steam pretreatment and fractionation of bagasse to produce a concentrated cellulose solid stream that is sensitive to enzymatic hydrolysis. Valuable chemicals are recovered by fractionating the liquid and vapor stream composed of hydrolysis and degradation products of the hemicellulose. Cellulosic derived glucose is produced for fermentation to biofuels. A hemicellulose concentrate is recovered that can be converted to value added products including ethanol.

The invention relates to an environment-friendly flame-retardant non-adhesive fiberboard of crop straw and a preparation method thereof. The fiberboard is prepared by the following steps that 1 ) wheat straw and sorghum straw are taken to be cut off correspondingly, and the wheat straw and the sorghum straw are soaked in water to obtain a softened material; 2 ) steam explosion is correspondingly carried out on the softened material to obtain wheat straw fiber and sorghum straw fiber; 3 ) nano calcium carbonate, nano zinc oxide are mixed with nano copper oxide, and modifying is carried out toobtain a modified additive A; nano zinc borate, the nano zinc oxide are mixed with the nano copper oxide, and modifying is carried out to obtain a modified additive B; 4 ) the wheat straw fiber and the sorghum straw fiber are mixed with the modified additive A to obtain a core layer mixture; the wheat straw fiber is mixed with the modified additive B to obtain a surface layer mixture; and 5 ) thecore layer mixture is taken as a core layer, the surface layer mixture is taken as a surface layer to be laid and pre-pressed to obtain a slab, after hot-pressing forming and post-treatment are carried out, the environment-friendly flame-retardant non-adhesive fiberboard is obtained. The fiberboard has no formaldehyde release and has good mechanical property, good anti-water, moisture-proof, anti-corrosion and antibacterial properties; and good in fireproof and flame-retardant effects, and suitable for popularization and application.

The invention belongs to the field of agriculture and relates to a lucid ganoderma cultivation medium, a preparation method of the lucid ganoderma cultivation medium and a matched lucid ganoderma cultivation method. The invention aims at providing a lucid ganoderma cultivation medium which is wide in source and low in price and a preparation method of the lucid ganoderma cultivation medium. The lucid ganoderma cultivation medium disclosed by the invention comprises the following components in percentage by weight: 20-60 percent of apple branches, 20-50 percent of cottonseed hulls, 10-30 percent of corncobs and 10-15 percent of bran. The lucid ganoderma cultivation method comprises the following steps: (1) preparing materials; (2) mixing the materials; (3) bagging; (4) carrying out spawn running; and (5) discharging the lucid ganoderma to obtain ganoderma lucidum. The apple tree pruning branches are fully utilized, pollution-free treatment and recycling of the apple tree pruning branches are realized, a novel raw material is found for lucid ganoderma cultivation, and the cost of the lucid ganoderma is reduced. The byproducts of apple tree pruning branches are fully utilized, the cultivated lucid ganoderma is low in cost, the yield and the quality of the lucid ganoderma are superior to those of the conventional matrix or the effect is equivalent, and a novel cultivation raw material is provided for lucid ganoderma production.

The invention discloses an advanced treatment process for cassava-based ethanol wastewater. Wastewater generated after cassava-based ethanol is subjected to multistage anaerobic digestion to generate methane is sequentially treated in an anaerobic fluidized bed, a membrane bioreactor, an intermediate tank and a nanofiltration device until nanofiltration water is discharged up to the standard. The invention also discloses a treatment system comprises the anaerobic fluidized bed, the membrane bioreactor, the intermediate tank and the nanofiltration device which are connected in sequence.

The invention discloses a method for preparing a seedling bed by using modified biogas residue fibers. The method comprises the steps of firstly, carrying out acetylation pretreatment on biogas residue fibers, then processing the pretreated biogas residue fibers together with a biomass adhesive, reinforcing filler, a curing agent and a demolding agent in a high-speed mixing process, and preparing the seedling bed containing the modified biogas residue fibers by means of compression molding. According to the method, biogas residue obtained by means of anaerobic fermentation is high in contents of lignin and cellulose having a crystal structure, is beneficial to acetylation modification and can effectively improve the fluidity of the biogas residue fibers, thus overcoming the defects that the traditional straw fibers are low in acetylation grafting rate and more in by-products; on the other hand, the biogas residue fibers contain higher content of nutrient elements such as nitrogen, phosphorus, potassium, calcium, magnesium and silicon, the discarded seedling bed containing the biogas residue fibers is easily decomposed by microorganisms, and the degraded products can be taken as fertilizer for promoting the growth of seedlings, so that the seedling bed is environmentally-friendly. Compared with a plastic seedling bed, the seedling bed product containing the biogas residue fibers is low in energy consumption, environmentally friendly, high in breathability and degradable, thus being easy to popularize.

The invention discloses a pear transcription factor PbrMYB169 and an application thereof. The pear transcription factor PbrMYB169 is separated from Dangshan crisp pears, and has MYB family member PbrMYB169 genes capable of adjusting and controlling development of sclereid of pear fruits, the nucleotide sequence of the pear transcription factor PbrMYB169 is as shown in SEQID No.1, and the coding amino acid sequence of the pear transcription factor PbrMYB169 is as shown in a sequence table SEQID No.2. Through an agrobacterium tumefaciens mediated heredity conversion method, PbrMYB169 transcription factors are converted into arabidopsis thaliana, and transgenic plants are obtained; biological function verification indicates that the PbrMYB169 gene cloned through the pear transcription factorPbrMYB169 has the function of promoting synthesis of arabidopsis thaliana inflorescence stem lignin, besides, the PbrMYB169 transcription factor has the advantage of being capable of adjusting and controlling a plurality of genes, and an efficient way is provided for molecular breeding. New genetic resources are provided for reduction of molecular breeding of synthesis of organism lignin, new heredity resources are provided for implementing green agriculture, and reduction of the agriculture cost and realization of an environmental-friendly purpose can be facilitated through development and utilization of the heredity resources.

The invention relates to a preparation and curing method of sodium alginate-lignin composite gel beads. The method comprises the following steps of mixing a sodium alginate solution with an organic solution of lignin, and dropwisely adding the mixed solution into a calcium chloride or zinc chloride solution by using an injector to obtain the composite gel beads; and carrying out coating and curingtreatment on the composite gel beads by using the sodium alginate solution and the calcium chloride solution. According to the method, ethylene glycol and glycerin which are low in toxicity and smallin pollution are used as solvents to dissolve the lignin, the lignin can be fully dissolved and can also be used as a plasticizer when sodium alginate-lignin is gelatinized, and other toxic and harmful cross-linking agents are prevented from being used. The prepared composite gel beads have high lignin content, high strength, regular shape and uniform particle size, and a certain microsphere formcan be still maintained after further curing treatment. The method is mild in reaction condition, simple, easy to operate and low in manufacturing cost, and a simple and effective storage way is provided for further comprehensive application of the lignin composite gel beads.

The invention discloses a preparation method of a lithium-sulfur battery negative electrode biological carbon material. The preparation method includes the steps: adding dandelion into water, adding concentrated acid into mixture to perform reaction, diluting the mixture to be neutral, and filtering and drying the mixture to obtain a product C; adding concentrated acid and water into the product C, placing mixture into a hydrothermal reaction kettle to perform reaction of solution D, diluting the solution D to be neutral, and filtering and drying the solution D to obtain a product E; uniformlylaying conductive graphite on the product, and performing heating reaction in a tube furnace to obtain a product F; performing flushing, extraction filtration and drying on the product F top obtain aproduct G; mixing the product G and powdered sulfur to obtain a mixture H; placing the mixture H into the tube furnace to perform heating reaction to obtain the biological carbon negative electrode material. According to the method, the dandelion serves as a biomass raw material, the dandelion is presoaked by mixed acid, a biological carbon precursor is prepared by a hydrothermal method, activation time is controlled in late activation process, the biological carbon material suitable for sulfur storage is acquired in a adjusting and controlling manner, the biological carbon material is applied to a lithium-sulfur battery, and the electrochemical performance of the lithium-sulfur battery is improved.

The invention relates to a wood-based lignocellulosic fibrous material having a tearing length of more than 8 km at 15° SR and a lignin content of at least 15%, based on the unbleached oven-dry fibrous material, for coniferous wood and having a tearing length of more than 5.0 km at 20° SR and a lignin content of at least 12%, based on the unbleached oven-dry fibrous material, for deciduous wood.