1656results about How to "Zero emission" patented technology

The invention discloses a straw component separation and straw component full utilization method, and relates to the technical field of straw comprehensive utilization. According to the method, straws are subjected to a steam explosion treatment, such that hemicellulose is first separated; and the rest of the material after hemicellulose extraction is subjected to steam explosion treatment again, such that the separation of cellulose and lignin is realized. The method has the advantages of simple process, environment-friendliness, low cost, and thorough separation of hemicellulose, cellulose and lignin. With the method provided by the invention, an environment-friendly separation technology of cellulose and lignin is realized for the first time internationally, and a basis is provided for full-element, high-added-value and comprehensive utilization of straws. On the basis, products with higher added values can be derived or generated. With the production process provided by the invention, all wastewater is treated and is completely recycled, and all waste residue is used for producing organic fertilizers, such that straws are thoroughly utilized, and straw component full utilization is realized. Also, zero emission and zero pollution are realized, such that the difficulty of straw comprehensive utilization is solved.

The invention relates to an air incorporation power machine motor car, which comprises a steering-wheel, a front aperture axle bracket, a rear axle stand, a girder for connecting the front aperture axle bracket and the rear axle stand and a vehicle body. The motor car further comprises a hub, an energy recovery device, an energy storage device, a power drive device, a control device, a shift device and an auxiliary device which are connected to the front aperture axle bracket and the rear axle stand through transmission shafts. The energy recovery device is connected with the energy storage device; the energy storage device is connected with the power drive device; and the control device controls the energy recovery device, the power drive device and the auxiliary device. When a motor vehicle is in normal running, an air power engine supplies power; and when the motor vehicle is needed to decelerate when conducting brake, turning and downhill, the hub and impellers are started to generate electricity and collect the power and use. The power recycled by the manner is rather considerable, so that the energy of the invention can be better made up. In sum, the invention utilizes air power as main power, and the power can be recycled and utilized through multi ways. In addition, the air source collection is convenient, the energy transformation rate is high and the exhaust emission is nearly zero, thereby achieving the aims of the invention.

The invention discloses a chemical production method, in particular a novel green production process for propylene oxide. In the method, the process design is carried out by using bipolar membrane, electrodialysis, antiosmosis, air flotation, heat exchange, oxidation, and other technology. In the production process, sodium hydroxide replaces the conventional calcium hydroxide and generates sodium chloride through reaction; the sodium chloride generates hydrochloric acid and sodium hydroxide by the bipolar membrane technology; and the hydrochloric acid is recovered, and the sodium hydroxide and water can be recycled. Therefore, no new sodium hydroxide is needed and no wastewater is discharged in the production of the propylene oxide. The sodium hydroxide is added at the preliminary stage of the production of the propylene oxide, and the input amount of the sodium hydroxide is controlled between 5 and 15 percent. The novel green production process for the propylene oxide has the advantages that: the recycling of the water, sodium chloride and sodium hydroxide is realized, the effects of zero discharge and input reduction of production materials are substantially achieved, and finally better social and economic benefits are achieved. The novel green production process for the propylene oxide can be widely applied to the chlorohydrin production in China.

A method for preparing nickel/manganese/lithium/cobalt sulfate and tricobalt tetraoxide from battery wastes adopts the following process: dissolving battery wastes with acid, removing iron and aluminum, removing calcium, magnesium and copper, carrying extraction separation, and carrying out evaporative crystallization to prepare nickel sulfate, manganese sulfate, lithium sulfate, cobalt sulfate or/and tricobalt tetraoxide. By using the method, multiple metal elements, such as nickel, manganese, lithium and cobalt, can be simultaneously recovered from the battery wastes, the recovered products are high in purity and can reach battery grade, battery-grade tricobalt tetraoxide can also be directly produced. The method is simple in process, low in, energy consumption and free in exhaust gas pollution, and can realize zero release of wastewater.

The invention discloses an extended range type electric vehicle power system based on a fuel battery and a control method for the extended range type electric vehicle power system. The output end of a fuel battery system with a hydrogen pot is connected with an input of a direct current/direct current (DC/DC) transformer through a controllable relay S1; an output of the DC/DC transformer is connected with a lithium iron phosphate power battery pack; the lithium iron phosphate power battery pack is connected with the high voltage input end of a motor controller; the three-phase output end of the motor controller is connected with a driving motor; a whole vehicle controller VMS directly controls an electromagnetic valve for managing hydrogen output and the relay S1 through an input/output (I/O) port, and communicates with the fuel battery system, the DC/DC transformer, a battery management system and the motor controller through controller area network (CAN) buses so as to control a motor to drive the whole vehicle to run and manage the whole power system. The fuel battery system with the hydrogen pot is used as a vehicle-mounted charger for the lithium iron phosphate power battery pack; and a scheme of a vehicle-mounted range extender of an electric vehicle can be provided. The efficiency of the fuel battery system serving as the vehicle-mounted range extender is higher than that of an internal combustion engine; furthermore, the noise is low, and zero emission and zero pollution are realized.

A hydrogen metallurgy method and a relevant device relate to the technical field of hydrogen metallurgy and hydrogen energy source. A pre-reduction furnace is used for rapidly pre-reducing iron ore concentrate granules in a hydrogen-rich, high temperature and high pressure condition to produce sponge iron with a reduction degree of more than or equal to 75 percent and the sponge iron is delivered to a cracking furnace in a heat-preserving enclosed mode; the cracking furnace cracks @ type fuel gas into high-temperature hydrogen and nano @@ through direct current plasma electric arc in a high-temperature oxygen-poor condition, most of the high-temperature hydrogen is delivered to the pre-reduction furnace and the sponge iron is rapidly molten and reduced to smelt molten iron or semi-steel; simultaneously, the residual heat of tail gas from the pre-reduction furnace is used for producing high-temperature steam which is electrolyzed by a water steam electrolytic cell to prepare high-temperature pure hydrogen; and after water in the high-temperature pure hydrogen is separated by heat exchange, the high-temperature pure hydrogen is returned to the pre-reduction furnace and partial high-temperature pure hydrogen is directly delivered as the hydrogen energy source. High efficiency, energy conservation, the best product quality and the optimal emission reduction effect of hydrogen metallurgy are fully shown.

The invention discloses a method for reutilization of low-grade after-product steel slag and a magnetic plant thereof, relating to a method for comprehensively utilizing the steel slag. The method comprises the sequential steps as follows: the low-grade after-product steel slag is screened, magnetically selected and ball-grinded by wet-method; the magnetically selected steel slag slurry is mixed with blast-furnace slag powder, plaster powder, cement and precocious digester as steel slag slurry mixture; the steel slag slurry mixture is mixed by compounding with one or more matters out of steel slag aggregate, crushed stone, sand, water and gas former aluminium powder so as to prepare porous bricks or standard bricks or pre-mixing mortar or aerated concrete block. The method can use a plurality of low-grade after-product steel slag, realizes the diversification of product, has large usage quantity and zero exhaust of the steel slag and is a good method for comprehensive utilization.

The invention relates to a process for rare-earth smelting resource reclamation and cyclic production. The process has the main characteristic of comprehensively and systematically solving the problems of environmental protection and industrial promotion of the whole rare-earth industrial chain by adopting innovative integrated technical means. The process mainly comprises administration and comprehensive utilization of waste gas, waste water and waste slag, revolution of a rare-earth smelting process, and reclamation and repeated utilization of various important resources such as sulfur, fluorine, ammonium, thorium, phosphorus, calcium and the like so as to achieve smokeless and harmless treatment of the waste gas, full utilization of the resources and zero discharge of industrial waste water and fulfill the final goal of cyclic production. The process radically solves the maximum environment-friendly bottleneck problem in a sustainable development process of the Baotou rare-earth industry from resource advantage to industrial advantage, in particular the historical key environment-friendly technical problem, reduces energy consumption of a large amount of resources and pollutiondischarge, greatly reduces the production cost, upgrades the rare-earth industry, and extends the larger industrial chain at the same time.

The invention relates to a method for efficiently preparing cotton based mesoporous activated carbon fiber. The method comprises a step (1) of washing cotton, placing the cotton in a hydrothermal reaction kettle, performing heating to 150-200 DEG C at the heating rate of 5-30 DEG C/min, performing hydrothermal carbonization, performing heat preservation for 1-3 hours and then performing cooling to room temperature; a step (2) of dipping carbonization materials obtained from the step (1) into activator solution, performing microwave-ultrasonic joint dipping for 5-30 minutes and then performing filtration, sending filtration materials to a microwave heating device, performing activation for 5-15 minutes at 250-350 DEG C and then stopping microwave output, and a step (3) of washing the activated materials to be neutral and performing drying to obtain the activated carbon fiber. According to the method, the characteristics of microwave inner heating and selective heating are fully utilized, the technological process is simple, the activation temperature is only 250-350 DEG C, the activation time is only 5-15 minutes, the mesoporous proportion of the activated carbon fiber of the product reaches 50-90%, and the adsorptive property is good.

The present invention relates to biodiesel oil preparing process, and provides one biodiesel oil preparing process with solid acid and solid alkali as catalyst to lower the activating energy and raise the reaction speed. The biodiesel oil preparing process includes the following steps: reacting dried grease with high free fatty acid content, methanol or ethanol, and cosolvent in the molar ratio of 1 to 6-1 to 6.05 in the first fixed bed reactor with solid catalyst A at 60-65 deg.c for about 3 hr; separating the oil phase from others; reacting the oil phase in the second fixed bed reactor with solid catalyst B with methanol or ethanol and cosolvent at 60-65 deg.c for about 3 hr; distilling out methanol or ethanol and cosolvent; separating the biodiesel oil from glycerin phase; and distilling the biodiesel oil phase to obtain biodiesel oil product. The catalyst of the present invention has high catalytic activity and can lower the activating energy and raise the reaction speed.

The invention discloses a vacuum preparing salt craft through leading salt-field saturated brine into evaporation tank in the sea-salt area, which comprises the following steps: pumping saturated brine into calorifier through brine pump; preheating; leading into evaporation tank; leading the vapor into heating room through separate cylinder; setting steam pressure at 0.3-0.4MPa; adopting green steam to heat in the heating room of effect evaporation tank; making the indirect steam through evaporating feed liquid as heat source of the next effect evaporation tank; making the indirect steam of II effect, III effect evaporation tank as the same; leading indirect steam of IV effect evaporation tank into mixing condenser; making salt grout generated by evaporating feed liquid through third washing; drying anticentripetally; drying; packing; getting product.

The invention discloses fermenting bed padding and a preparation method and applications thereof. The fermenting bed padding is prepared by materials with the following parts by weight: (1) 35-40 parts of wood chips or wheat bran; (2) 55-60 parts of any one or the mixture of more than one of seed shells, straw, spent mushroom compost or leaves, wherein the mixture is composed by any weight proportion; and (3) 3-6 parts of rice bran or plant cakes and 0.1-0.2 part of anaerobic fermenting agent. The fermenting bed padding mainly has the following advantages of: (1) long using time; (2) no emission, no odour and no pollution; (3) saving feed, reducing cost and improving benefits; and (4) effectively reducing incidence rate of pigs, reducing medication and improving pork quality.

The invention relates to a method for separating and extracting feldspar ore with complex impurity components, which comprises the following steps of: 1) performing ball milling on the feldspar ore with complex impurity components through a ball mill; 2) performing classification and de-sliming on the milled feldspar ore by using an improved hydraulic classifier; 3) performing low-intensity magnetic separation on the classified feldspar ore through a low-intensity magnetic separator to obtain high-intensity magnetic substances and rough feldspar concentrate for high-intensity magnetic separation; 4) performing high-intensity magnetic separation on the rough feldspar concentrate obtained by the low-intensity magnetic separation through a high-intensity magnetic separator to obtain low-intensity magnetic substances and rough feldspar concentrate for flotation; and 5) performing size mixing and segmentation on the rough feldspar concentrate obtained by the high-intensity magnetic separation, adding a flotation agent, and performing reverse flotation, impurity removal and dehydration through a flotation machine to remove impurities and obtain fine feldspar and quartz mixed powder and flotation water.

A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

The invention relates to a method for resourceful treatment of ammonia chloride wastewaters. The method comprises the following steps: (1) respectively carrying out pretreatment on ammonia chloride wastewater with different concentrations for removing impurities; (2) carrying out reverse osmosis treatment on a clear liquor of the ammonia chloride wastewater, which is obtained in the step (1), with the concentration being lower than 0.5%; (3) mixing obtained reverse osmosis concentrated water with a clear liquid of the ammonia chloride wastewater, which is obtained in the step (2), with the concentration being higher than 0.5% so as to obtain ammonia chloride mixed wastewater; (4) carrying out conventional electrodialysis treatment on the obtained ammonia chloride mixed wastewater so as to obtain electrodialysis fresh water; (5) returning the obtained electrodialysis fresh water, carrying out reverse osmosis treatment the obtained electrodialysis fresh water to obtain electrodialysis concentrated water, and carrying out acid-alkali regeneration on the electrodialysis concentrated water by adopting bipolar membrane electrodialysis; and (6) converting ammonia chloride in the wastewater into hydrochloric acid and ammonium hydroxide by adopting the bipolar membrane electrodialysis to obtain low-concentration ammonia chloride wastewater, simultaneously returning the obtained low-concentration ammonia chloride wastewater and carrying out the conventional electrodialysis treatment on the obtained low-concentration ammonia chloride wastewater. According to the method, the resourceful treatment and the zero emission of the ammonia chloride wastewater can be really achieved.

The invention relates to livestock feeding technology, in particular to a making method of a biological fermentation bed for pig farming. Using the biological fermentation bed to farm pigs strictly sticks to the scientific process flow. Raw materials (such as sawdust and rice hull) and strain are mixed from top to bottom for three times and are picked for fermentation for about a week. Core temperature of padding reaches 60DEG C-85 DEG C and is kept for 3-5 days. Even pathogenic microbes included in the raw materials can be killed. As strongest pathogenic microbes survive tens of hours at most at 60 DEG C, healthy pigs entering the fermentation bed can grow more healthily.

The invention provides a process for extracting vanadium by acid leaching of stone coal. The process mainly comprises the following steps of: removing aluminum from crystal aluminum sulfate ammonium vanadium obtained from acid leaching solution of stone coal, performing selective oxidation and adjustment of a pH value of the solution obtained after the aluminum removal to remove iron, performing oxidizing transformation of vanadium in the solution obtained after the iron removal, adsorbing the vanadium in the transformed solution by anion exchange resin, desorbing and regenerating the vanadium-loaded resin, performing ammonium salt precipitation of the vanadium-desorbing solution, performing pyrolysis of ammonium metavanadate, transforming the aluminum sulfate ammonium vanadium and the like. The process has the advantages of short flow, little consumption of reagent, high vanadium recovery rate, low production cost, good product quality and the like.

The invention belongs to the technical field of waste comprehensive utilization of beef cattle farms, and discloses a waste comprehensive utilization process of the large-scale beef cattle farms. The process is characterized by comprising the following steps that (1), cattle feed crop raw materials from farmland are used for preparing organic feed for cattle, and the organic feed is used for cattle farming; (2), cattle dung, urine and flushing water are generated during cattle farming and are collected; 10-90% of cattle dung is used for planting agaricus bisporus, and mushroom dregs generated in the planting process of the agaricus bisporus are used for producing organic fertilizers; the rest of cattle dung, the urine and the flushing water are used for producing biogas and biogas slurry at a biogas station, biogas residues are used for producing organic fertilizers, the biogas slurry is used for farmland irrigation, and the organic fertilizers are used for farmland fertilization. The process not only solves the environmental pollution problem, but also improves the rural energy structure, the mushroom dregs generated in the planting process of the agaricus bisporus and the biogas residues generated by a biogas digester are used for manufacturing the organic fertilizers, the yield of crops is improved obviously, the use number of the fertilizers is reduced, and auxiliary non-point source pollution is relieved.

The invention discloses an inner-electric-arc plasma torch for gasifiers and relates to plasma heating equipment. The inner-electric-arc plasma torch is mainly composed of a front torch body, a rear seat, a first electrode and a fourth electrode, an arc cavity and a cooling water jacket are structured in the front torch body, an inlet and a compression nozzle are respectively arranged in two ends of the arc cavity, the cooling water jacket is arranged on the outer side of the arc cavity, and the head of the first electrode is arranged out of the arc cavity of the front torch body and is close to the inlet; the head of the fourth electrode (8) extends to the compression nozzle side in the arc cavity through the compression nozzle, a metal component at the position of the compression nozzle forms a third electrode, a second annular discharging surface is arranged on the third electrode, a metal component at the position of the inlet forms a second electrode, and a first annular discharging surface is arranged on the second electrode; or the head of the fourth electrode further extends to the arc cavity from the compression nozzle and is close to the inlet, and the metal component at the position of the inlet forms an auxiliary electrode. By the inner-electric-arc plasma torch, water vapor can be heated and decomposed in the arc cavity, energy is concentrated on water molecules, and the water molecules are easier to decompose.

The invention discloses a preparation process of 2-amino-4-acetyl aminoanisole. The preparation process comprises the following steps of (1) taking methanol as a solvent and 2,4-dimitroanisole as a raw material, introducing hydrogen to perform catalytic hydrogenation reduction reaction in the presence of a catalyst; (2) performing solid-liquid separation, and recovering the catalyst; (3) adding acetic anhydride to perform acetylation reaction; (4) recovering methanol which is recycled as a solvent for follow-up hydrogenation reduction; (5) performing reduced pressure distillation to recover acetic acid; (6) performing cooling crystallization to obtain a 2-amino-4-acetyl aminoanisole product.