33results about How to "Increase resource value" patented technology

A biologic method to drying life garbage, it is about a kind of technology to decrease the water of life garbage and biologic stable disposal. Firstly, after sieving out the big block from the life garbage, to stack it into groove-shape compost reactor, then to cover tying straw pad and compound heat insulating coiled material, to bonds the opening rubber tail gas gathering tube with the cooling tube under the coiled material. The cooling tube is connected with gas-liquid separator, centrifugal blast blower B, gas separation unit and centrifugal blast blower A sequentially, and the centrifugal A is connected with the bottom of the reactor. Secondly, to vent the air fitfully and circularly with firm discharge, to turn one time on the second day and the fourth day respectively, to complete drying in six days, offgas enters gas separation unit after liquor condensate is eliminated by the cooling tube and gas-liquid separator, after discharging part of offgas into off-odor unit, to supply equivalent clean air, then to put the offgas into the centrifugal A for garbage venting. The quantity of offgas off odor and running cost of this invention is low, the water-content coefficient of the garbage is smaller than 40% after disposal, and it can be used for drying the life garbage with water-content coefficient 60%.

The invention discloses a steel slag waste heat recovery and pressurized slag disintegrating system and technology. The system comprises a slag ladle tilting mechanism, a roller, a waste heat boiler, a straight-line cooler, a slag disintegrating tank, a slag ladle trolley, slag disintegrating pressurization kettles and a slag removal machine. The slag ladle tilting mechanism can tilt a slag ladle containing steel slag. The surface of the roller is provided with spirally-arranged roller teeth. The lower portion of the roller is provided with a steel slag groove. The steel slag groove is provided with a sealing cover. The steel slag in the tilted slag ladle can be conveyed into the steel slag groove through the slag removal machine, and a discharge outlet of the steel slag ladle is located above the straight-line cooler. Air is adopted as a heat exchange medium, a first fan blows air into a high-temperature material layer of the straight-line cooler, indoor-temperature air penetrates through the high-temperature steel slag from bottom to top, air is heated, and first-step heat exchange is completed. Air subjected to heat exchange through the straight-line cooler enters the roller, gas penetrates through the stirred steel slag to be further heated, and secondary heat exchange is completed. High-temperature gas is sucked to the waste heat boiler through a second fan, and therefore waste heat recovery is achieved.

The invention discloses an urban sludge low-temperature hydrothermal carbonization coal production recycling system which greatly improves the combustion value of biochar and enhances the sludge incineration efficiency through a vacuum drying and squeezing system. A phosphorus recovery device is added to recover phosphorus in sewage and develop the additional value of phosphorus. The integrated system comprises a feeding system, a carbonization system, a heat exchange system, a discharging system, a dehydration system, a dosing system, a phosphorus recovery system, an automatic control systemand the like, and is characterized in that the excess sludge is converted into green fuel (charcoal), and phosphorus is recovered, so that the excess sludge is harmless, stable, reduced, recycled, economical and efficient. According to the technology, urban sludge low-temperature hydrothermal carbonization coal production recycling is provided, and sludge is pyrolyzed in an anaerobic environment to produce biochar. The biochar formed after hydrothermal carbonization and vacuum drying and squeezing is high in combustion value, environmentally friendly, high in resource utilization rate and remarkable in energy conservation.

The invention discloses a method for synchronously removing antimony and bromine from electronic waste flame-retardant plastic and recovering a plastic matrix. The method comprises the following steps: crushing the electronic waste flame-retardant plastic, creating a sulfur-alkali reaction atmosphere in a hydrothermal environment, carrying out hydrothermal sulfur-alkali reaction on the crushed flame-retardant plastic in the sulfur-alkali reaction atmosphere, synchronously removing antimony and bromine flame retardants, and recovering to obtain the plastic matrix with small structural performance change. Antimony and bromine flame retardants contained in the flame-retardant plastic are efficiently and synchronously removed, and the plastic matrix capable of being used for mechanical re-granulation is recycled. The method has outstanding advantages in the aspects of environmental pollution reduction and energy resource utilization, and has the characteristics of good removal effect, low operation cost, high resource value, no pollution to the environment and the like.

The invention provides a separating and using method for mixed sodium salt. The method comprises the following steps: A) adding the mixed sodium salt to ammonia water, to obtain ammoniacal brine, wherein a mass ratio of sodium sulfate and sodium chloride in the mixed sodium salt is 1:(0.5-2), and concentration of the ammonia water is 8-12%; B) feeding carbon dioxide to the ammoniacal brine, performing a gas liquid reaction, to obtain a mixed system, wherein a feeding quantity of the carbon dioxide is 10-30 L/h; C) performing evaporation and concentration on the mixed system, separating out andcrystallizing, to obtain saline mixture; and D) filtering the saline mixture, washing filter residue by using sodium sulfate saturated solution, to obtain a sodium sulfate product, cooling and crystallizing filtrate, washing a separated crystal by using ammonium chloride saturated solution, to obtain an ammonium chloride product. The method is capable of, on the basis of separating and recoveringthe sodium sulfate, converting the sodium chloride into the ammonium chloride with the wider application range, and providing a new technology for separation of the sodium sulfate and the sodium chloride.

The invention relates to an intelligent regulation and control system and a method for preparing high-added-value products from SO2 absorption by-products, and the system comprises a flue gas purification cooling subsystem, a flue gas desulfurization subsystem, an ammonium bisulfite refining subsystem, a hydroxylamine sulfate preparation subsystem and a high-added-value product preparation subsystem which are sequentially arranged, the flue gas purification cooling subsystem and the flue gas desulfurization subsystem are arranged in a flue between an SCR denitration system and a power plant chimney, and the flue gas desulfurization subsystem, the hydroxylamine sulfate preparation subsystem and the high value-added product preparation subsystem are respectively connected with an intelligent regulation and control subsystem. According to the invention, multi-means such as flue gas purification and cooling, segmented efficient desulfurization, ammonium bisulfite refining, high-added-value product preparation, intelligent multi-factor regulation and control and the like are adopted, so that full-process multi-means matching optimization control such as flue gas pre-purification and washing-ammonium bisulfite oxidation inhibition-oxime intermediate refining and the like is realized; and preparation of high-added-value products such as finished oxime is realized at low cost at the same time of realizing high efficiency SO2 removing.

The invention relates to a coal-based graphene quantum dot and a preparation method thereof.The method comprises the steps that a coal-based raw material and excessive nitric acid are mixed, the obtained mixture is subjected to a pre-oxidation reaction, and a pre-oxidation reaction mixture is obtained; carrying out microwave digestion treatment on the pre-oxidation reaction mixture to obtain an oxidation reaction product; and removing nitric acid in the oxidation reaction product, and washing and drying the obtained solid. The conditions of the method provided by the invention can reduce the severity of graphene quantum dots prepared by oxidation reaction, shorten the reaction time, and facilitate high-valued utilization of coal-based raw materials.

The invention relates to the field of environment-friendly resource utilization, and discloses a collaborative resourceful treatment method and system for oil-based rock debris and kitchen biogas residues. According to the method, the oil-based rock debris is subjected to solid-liquid separation, drying and fine crushing to obtain powder, then the kitchen waste is subjected to screening and solid-liquid separation, obtained grease and solid-phase residues are mixed with the oil-based rock debris powder according to a certain proportion, and finally the mixture is dried, formed and cut into blocks to be made into the solid fuel. According to the treatment system, the oil-based rock debris and the kitchen biogas residues are treated respectively, reasonable combination of the oil-based rock debris and the kitchen biogas residues is achieved, the problem that the oil-based rock debris and the kitchen biogas residues are difficult to treat is well solved, the effects of reduction, harmlessness and recycling can be achieved for the oil-based rock debris and the kitchen biogas residues, the environmental benefits and the economic benefits are obvious, and the method is suitable for industrial production. Not only is the environmental risk of the oil-based rock debris greatly reduced, but also the recycling value of the kitchen biogas residues and the oil-based rock is further improved, and a contribution is made to reduction of carbon emission in China.

The invention provides a catalyst for producing BTX aromatic hydrocarbon from organic waste, a preparation method and application of the catalyst, and a method for producing BTX aromatic hydrocarbon. Firstly, the invention provides a preparation method of a catalyst for producing BTX aromatic hydrocarbon by utilizing organic wastes, which comprises the following steps: 1) pyrolyzing the organic wastes to obtain semicoke and volatile matters; and 2) grinding the semicoke, and carrying out gravity separation to obtain carbon powder, thereby obtaining the catalyst. And after the carbon powder is loaded with the active component, the catalyst loaded with the active component is obtained through calcination and activation. Secondly, volatile or gasified tar produced by pyrolysis of organic waste gas is catalytically reacted with the prepared catalyst or catalyst loaded with active components to obtain low boiling tar BTX aromatics, combustible gas and high boiling oil According to the method, organic wastes such as household garbage can be directly changed into high-quality chemical product BTX aromatic hydrocarbon, precious resources such as petroleum, methanol, ethanol, dimethyl ether or n-hexane are not needed, and the resource consumption is reduced.

Disclosed is a method for producing ethanol or lactic acid from a palm trunk with efficiency and at low cost. A sap is extracted from a palm trunk. A fiber of the palm trunk produced after the extraction of the sap is hydrolyzed with an enzyme to saccharify the fiber, thereby producing a saccharified solution. The sap and the saccharified solution are subjected to the fermentation with a microorganism to produce ethanol or lactic acid. As a pretreatment for the saccharification with the enzyme, the fiber of the palm trunk may be hydrolyzed with an acid or alkali. The saccharification by hydrolysis and the fermentation with the microorganism may be carried out simultaneously. In the fermentation with the microorganisms, the saccharified solution (i.e., a hydrolysate of the palm trunk) and the sap may be used in the form of a mixture or separately.

The invention relates to a high-functionality mixed polyol initiator and a preparation method thereof. The initiator is a composition of two or three of hydroxy fatty acid monoglyceride, hydroxy fattyacid diglyceride and hydroxy fatty acid triglyceride. Further, the initiator comprises, by weight, 25-50 parts of hydroxy fatty acid monoglyceride, 30-60 parts of hydroxy fatty acid diglyceride and 5-15 parts of hydroxy fatty acid triglyceride. The preparation method includes the steps: (1) adding epoxy fatty acid grease and glycerol with the weight ratio of 1:(0.2-0.6) in nitrogen or inert gas shielding atmosphere, and performing reaction under the action of base catalysis at the temperature 130-250 DEG C under the pressure of 0.1-0.3MPa for 3-15 hours; (2) removing water and other small molecular weight impurities in a vacuum-pumping manner, and filtering solid insoluble substances to obtain the initiator. The initiator is applied to rigid polyurethane foam polyether polyols, the strength of rigid foam products can be improved, and shrinkage in the production process is decreased.

The invention discloses cattle feed containing palm meal residue, and a preparation method of the cattle feed. The preparation method comprises the steps of carrying out anaerobic fermentation on palmoil extraction kernel residue, used as a substrate, by using lactic acid bacteria and saccharomyces cerevisiae, expanding the basic number of a bacterial colony, then mixing the palm oil extraction kernel residue with an empty fruit bundle and a base material for carrying out secondary anaerobic fermentation, using the product to replace part of corn stalks and other forages and adding into cattle roughage, and evenly stirring to obtain the cattle feed. The obtained cattle feed can promote the growth of beef cattle, reduce the cattle feed production cost, improve the economic benefit of cattle raising, and realizes the higher value application of meal residue obtained after palm oil extraction.

The invention discloses a resourceful treatment method for manganese slag and calcium chloride waste residues, the resourceful treatment method is a method for realizing synergistic resourceful treatment through two-stage roasting of manganese slag and calcium chloride waste residues and utilizes the reaction characteristic that calcium chloride, silicon dioxide and water vapor in air form calcium silicate and hydrogen chloride at high temperature, manganese slag which is formed through reduction roasting and contains a low-valence manganese phase is mixed with the materials to be subjected to high-temperature chloridizing roasting, the roasted product is subjected to water leaching separation to obtain manganese chloride, water leaching slag composed of the mixture of calcium silicate, calcium sulfate and silicon dioxide is obtained, and collaborative resource utilization of the manganese slag and calcium chloride waste slag is achieved; the method improves the resource value of the solid waste, has higher economic benefits, also reduces the environmental pollution caused by independent treatment of the corresponding solid waste, and the whole treatment process is simple and feasible in steps, low in energy consumption and capable of being widely popularized and applied in the electrolytic manganese industry.

The invention discloses an information management method and device based on a blockchain, applied to a blockchain system, and the method comprises the steps: receiving registration information of first users; determining a second user from the first users; receiving an evaluation value of the second user to the first users, and adjusting a resource value of the first users according to the evaluation value of the first users; sending denounced information of the first users for the second user to each first user; receiving voting information of the first user for the denounced information, and determining whether the denounced information is true or not according to the voting information; if so, deducting the resource value of the second user corresponding to the denounced information; after a preset period arrives and no denounced information for the second user is received, increasing a resource value of the second user; and sorting the resource values of the first users, and sending a notification of resource selection to the first users according to a sorting sequence. Therefore, the information management efficiency is improved, and dynamic evaluation and management of eachuser are realized.