66results about How to "Effective prolapse" patented technology

The invention relates to a method for carrying out anaerobic digestion on kitchen waste after heat-moisture treatment, belonging to the technical fields of harmless resource treatment and disposal of solid waste. The method comprises the following steps of: pre-treatment, high-temperature heat-moisture treatment, de-oiling, anaerobic digestion, biogas residue dehydration treatment of the kitchen waste, and the like. The method disclosed by the invention has the following advantages that: (1) the kitchen waste ia sterilized before the anaerobic digestion; (2) the kitchen waste can be effectively de-oiled and the occurrence of oil acidification is prevented so that the follow-up anaerobic digestion process is more stable and the oil recovery is improved; and (3) salt content in the kitchen can be effectively desalinated so that the salt content in the biogas residue is decreased and the treated kitchen waste can be used as a good soil conditioner.

The invention provides a processing method of high-purity aloe acetylated polysaccharide, comprising the steps of: peeling and crushing the aloe, filtering to obtain the aloe juice, adding the pectinase in the aloe juice according to the additive amount of 50-70 ml / ton of aloe juice, adding the active carbon in the aloe juice according to 0.1-0.3 of the mass of the aloe juice, then stirring for 20-40 min for enzymolysis and decolorization, and standing until the aloe juice is clear; thereafter, filtering by the microfiltration membrane with filtration aperture of 10 mu m, the filtration membrane with filtration aperture of 0.2 mu m and the ultrafiltration membrane with filtration aperture of 0.001 mu m, concentrating by the reverse osmosis membrane and drying to obtain the aloe powder, the mass content of the aloe acetylated polysaccharide reaches 15%. The invention realizes continuous separation at the normal temperature and enables various functional compositions in the aloe to be fully separated without adding any assistant, thereby the purity of the aloe acetylated polysaccharide is guaranteed and the extraction and separation costs are reduced.

The invention relates to an Oil-gas-water-solid three-level separation sled device, comprising a sled shell, a cyclone bin, a sand settling diversion pipe, a sand settling bin, an inclined settling chamber, a water-gathering chamber, an oil-mixing bin, a cyclone and an oil-gathering chamber. The cyclone bin, the sand settling diversion pipe and the inclined settling chamber form a first separation system for primary separation of the oil-gas-water-solid four phases; the oil-mixing bin, a control valve and the cyclone form a second separation system for cyclone separation of oil-water two phases; and the oil-gathering chamber and the water-gathering chamber form a third separation system for gravity settling separation of the oil and water. Under a synergistic effect of the three separation systems, efficient separation of the oil, gas, water and solid is realized. The oil-gas-water-solid three-level separation sled device is simple and reasonable in structure design, has large processing capacity, occupies small floor area, is suitable for change of moisture content in a produced liquid of an oilfield, can separate oil, gas, water and solid phases in a liquid coming from the oilfield, is convenient for discharging the separated oil, gas, water and solid phases in time, has high efficiency and is simple to maintain.

The invention belongs to the technical field of petrochemical industries, in particular to a regenerative recovery system used to balance catalysts in a fluid catalytic cracker (FCC) and a method for preparing same. The regenerative revived recovery system used to balance catalysts in a fluid catalytic cracker (FCC) of the invention comprises that to-be-processed discarded equilibrium catalysts enter a multi-stage magnetic separator (A) via a material delivery system, sorted low magnetic E-cats enter an acidification demetalization device (B), high magnetic E-cats are unloaded from a sack, serous fluid after being processed by the acidification demetalization device (B) enter an activating device (C), and water and activating agents are added in the serous fluid which is acid-reacted. After a certain time of reaction, the serous fluid is processed to form filter cakes via a filter dehydration device (D) and enter a drier (E). The filter cakes are baked in a rotary baker (F) to be completed products of recovery catalysts which continuously flow out from a revolving furnace, and the recovery catalysts are just sifted and packed. The whole process flow is controlled and displayed by an automatic control device (G).

The present invention discloses a Y-Beta composite molecular sieve having a double mesoporous structure, and a preparation method thereof. The Y-Beta composite molecular sieve has two mesoporous structures such as 3-5 nm mesopores and 7-10 nm mesopores, wherein the pore volume of the mesopores with the pore size of 3-5 nm accounts for 20-50% of the total pore volume, the pore volume of the mesopores with the pore size of 7-10 nm accounts for 15-40% of the total pore volume, a molar ratio of silica to alumina is 7-25, a specific surface area is 480-780 m<2> / g, the total pore volume is 0.39-0.70 ml / g, and the average pore size is 1.7-3.8 nm. The preparation method comprises: (1) dissolving an inorganic alkali and an organic alkali in water to form a mixed solution; and (2) adding a hydrogen type Y-Beta composite molecular sieve to the mixed solution, carrying out a constant temperature treatment, filtering, washing, drying, calcining, and carrying out ammonium exchange on the calcined product to obtain the Y-Beta composite molecular sieve having the double mesoporous structure. The Y-Beta composite molecular sieve of the present invention can provide more reaction spaces for macromolecules so as to improve the catalytic performance of the composite molecular sieve.

The invention discloses a treating method for waste gas containing sulfur and hydrocarbons. The method comprises the following steps that: crude diesel or crude kerosene enters a rotating packed bed for devolatilization pretreatment; a material discharged from the liquid phase outlet of the rotating packed bed enters absorption equipment as an absorbent and contacts and reacts with waste gas containing sulfur and hydrocarbons, and hydrocarbons in the waste gas are recovered; waste gas discharged from the absorption equipment enters an alkali liquor absorption device for removal of sulfur-containing compounds in the waste gas, and a rich absorption solvent discharged from the absorption equipment directly enters a hydrogenation device; and waste gas discharged from the alkali liquor absorption device meets national standard and is discharged. The treating method for the waste gas containing sulfur and hydrocarbons provided by the invention adopts the rotating packed bed for pretreatment of the crude diesel or crude kerosene so as to remove foreign matters like hydrogen sulfide and volatile components in the crude diesel or crude kerosene, thereby preventing the waste gas from producing secondary pollution; and the method has the advantages of simple process, economical performance and reasonability and is applicable to absorption treating process for the waste gas containing sulfur and hydrocarbons.

This invention relates to a method and device for using oil coke as fuel in circulation fluidized bed solving the difficulties of burned-out in burning, desulfurization and lumping, slag-bonding appearing in end flue pipe and cyclone separator in the circulation fluidized bed. This invented oil coke combined fuel includes oil coke, coal and desulfurizer which can effectively removed SO2 and eliminate lumping and slag-bonding phenomenon and big mesh sieving is applied for oil coke particles to form thicken or thin phase beds in firing chamber, suitable for subjects balance in bed; warm scuff-resistant coating is designed under the circulation fluidized bed to form high temperature zone good for firing of oil coke and burning-out, stepped burning is good for reducing NOx exhaust.

The invention relates to a method for comprehensively recovering selenium, mercury, lead and silver from acid mud, and belongs to the technical field of metallurgical acid mud treatment. The method comprises the steps that carbonate is added to subjected to phase transformation reaction with the acid mud to obtain a transformation solution and transformation slags; dilute acid is added to selectively leach the lead in the transformation slags, and sodium chloride is added after leaching to obtain lead-containing leachate and selenium-mercury-silver enriched slags correspondingly so as to realize separation of lead from the selenium, the mercury and the silver; an oxidizing agent and acid are added to chloridize and leach selenium-mercury enriched slags to obtain selenium-mercury leachate and silver-containing slags; sulfur dioxide is introduced into the selenium-mercury leachate for reduction, and crude selenium and a mercury-containing solution are obtained; sulfuric acid is added into the lead-containing leachate for a reaction to generate lead sulfate and the dilute acid, the dilute acid and the pure lead sulfate are obtained, and the dilute acid is recycled; and a vulcanizing agent is added into the mercury-containing solution for reaction to obtain mercury sulfide and vulcanized residual liquid. The method for comprehensively recovering the selenium, the mercury, the leadand the silver from the acid mud treats the smelting acid mud through a full-wet method, is low temperature and environmentally friendly, the mercury yield in the whole process is larger than 99.5%, the lead yield is larger than 95.0%, the selenium yield is larger than 98.0%, related treatment equipment is mature and easy to engineer, and the application prospect is good.

The invention discloses a purification method for coal pitch with a high softening point and belongs to the technical field of tar deep processing. The purification method comprises the following steps: mixing pitch with small-molecule aromatic hydrocarbons and obtaining pitch particles by using a granulator and a cutting-off machine; extracting the pitch particles with a solvent to obtain porous pitch particles; extracting the porous tar particles with alkali solution and acid solution to obtain the content of silicon and the content of metal and performing solid-liquid separation; washing the extracted particles with deionized water and performing solid-liquid separation; drying the substances in an inert atmosphere or vacuum environment to obtain purified pitch. The purification method disclosed by the invention has the benefits that the porous pitch particles are extracted by using low-temperature alkali and acid of 30-80DEG C, so that silicon and other metal impurities in the coal pitch are effectively removed; the total ash content of the obtained purified pitch is less than 0.005 percent, the content of the silicon is less than 0.001 percent and the content of the metal impurities is less than 0.002 percent; higher use requirement can be met; besides, the purification method is simple in process step and lower in energy consumption.

The invention discloses a casting residual steel slag recycling method, and particularly provides a casting residual steel slag recycling method applied to the technical field of ferrous metallurgy. By means of the casting residual steel slag recycling method, phosphorus in semisteel can be effectively removed, the cleanliness of molten steel can be improved, the temperature drop generated during converter steel tapping is small, and the consumption of semisteel covering agents and the consumption of steelmaking converter cold slag materials are effectively reduced. The casting residual steel slag recycling method includes the following steps: a, molten steel casting is carried out; b, casting residual steel slag generated after molten steel casting is poured into a semisteel tank on a spanning part crossing trolley; c, the semisteel tank on the spanning part crossing trolley is delivered to a vanadium extracting spanning part; d, semisteel tapping is carried out on the semisteel tank at a vanadium extracting furnace; e, the casting residual steel slag generated after semisteel tapping is carried out is delivered to a steelmaking converter to be smelted; f, furnace post-treatment is carried out on the casting residual steel slag; g, the casting residual steel slag is refined; and h, the steps are sequentially repeated. By means of the casting residual steel slag recycling method, the phosphorus in the semisteel can be effectively removed, the cleanliness of the molten steel can be improved, and the consumption of steel materials can be greatly reduced.

The invention relates to an underground water dissolved gas on-site sampling device. The on-site sampling device comprises a degassing bottle, a gas collecting bottle, a water supplementing bottle, a vacuum pump and an inflating pump. Three ports are arranged on the degassing bottle, a bottle plug is arranged on the first port and provided with a gas guide pipe, a gas bag is arranged at one end of the gas guide pipe, and the other end of the gas guide pipe is connected with the inflating pump; a second bottle plug is arranged on the second port and provided with a water guide pipe, one end of the water guide pipe stretches deeply into the degassing bottle, and the other end of the water guide pipe is connected with the bottom of the water supplementing bottle; a third bottle plug is arranged on the third port, an inner cavity in the third bottle plug is communicated with a vacuum pipe and a gas collecting pipe, the free end of the vacuum pipe is connected with the vacuum pump, and a gas collecting needle head is arranged at the free end of the gas collecting pipe and is communicated with the gas collecting bottle. The on-site sampling device is simple in structure, low in cost and convenient to operate and effectively degasses and collects gas dissolved in underground water, which is beneficial for assay research in the next step.

The invention discloses a device used for high-efficiency processing and fugitive emission of VOCs. The device comprises a buffer tank, a blower fan, a condenser, a gas-liquid separation tank, and anadsorption tower unit which are connected successively; the adsorption tower unit and a vacuum pump are connected through a desorption pipeline; the desorption pipeline is provided with a desorption valve; the vacuum pump is connected with the buffer tank; the vacuum pump is used for conveying desorption gas from the desorption tower unit into the buffer tank from bottom to top; a presser sensor is arranged in the buffer tank; the condenser and the gas-liquid separation tank are connected with a liquid storage tank; and the liquid storage tank is provided with a waste liquid outlet. The devicecomprises the advantages of condensing method and adsorption method, a high efficiency stable operation comprehensive treatment technology process is formed, the newest national emission standards are achieved at relatively low investment and operation cost, and no secondary pollution is caused.

The invention relates to an ageing oil demulsifier and a preparation method thereof, and belongs to the technical field of petroleum processing. The ageing oil demulsifier comprises mixed acid, a demulsifier monomer and an initiator, wherein the mixed acid consists of acrylic acid and maleic anhydride based on the molar ratio of (1-3): (0.5-1.5); the molar ratio of the mixed acid to the demulsifier monomer, namely, alkyl phenolic resin-polyoxyethylene polyoxypropylene ether, is (0.5-1.7): (0.5-1.5); the initiator, namely, lauroyl peroxide, accounts for 8 to 12% of the mass of the mixed acid. The preparation method comprises the following processes: adding the initiator, namely lauroyl peroxide to mixed acid and demulsifier monomer, namely alkyl phenolic resin-polyoxyethylene polyoxypropylene ether; polymerizing for 1 to 4 hours under a temperature of 70 to 100 DEG C; heating to reach 100 to 150 DEG C; esterifying for 3 to 7 hours to obtain the ageing oil demulsifier. The ageing oil demulsifier has the characteristics of being simple in components, simple in process, convenient, fast and efficient to prepare, low in cost, small in dosage, small in toxic and side effects, wide in application scope, good in demulsifying effect, etc.

The invention discloses a comprehensive treatment method of shale gas extraction water. The method is characterized by comprising: (1) adjusting the pH value of shale gas extraction water to 2.5-5; (2) performing contacting of the pH value-adjusted material, a catalyst and an oxidant under microwave irradiation, and carrying out a microwave catalysis oxidation reaction; (3) adjusting the pH value of the material obtained through the microwave catalysis oxidation to 7.5-12 so as to obtain a suspension; (4) carrying out solid-liquid separation on the suspension to obtain a supernatant and a solid; and (5) carrying out a microwave pressure reducing treatment on the obtained supernatant, and carrying out a harmless treatment on the solid and the remaining residue obtained through the microwave pressure reducing treatment. With the technical scheme of the present invention, the shale gas extraction water can be efficiently treated, the contents of the chlorine ions and other impurities in the treated extraction water are substantially reduced, the treated extraction water can meet the discharge standard or can be recovered and utilized, and the treatment process is simple and effective.

The invention relates to an inorganic all-solid electrochromic device adopting an optimized structure, which structurally comprises a glass substrate, a transparent conducting layer A, an electrochromic layer, an ionic conducting layer and a transparent conducting layer B, wherein the transparent conducting layer A, the electrochromic layer, the ionic conducting layer and the transparent conducting layer B are deposited on the glass substrate in sequence; both the transparent conducting layer A and the transparent conducting layer B are Al-doped ZnO (ZAO) thin films; the electrochromic layer is a tungsten oxide (WO3) thin film; the ionic conducting layer is a lithium titanate (Li4Ti5O12) thin film. The thin film structure of the electrochromic device is simplified from the traditional five layers into four layers, so that the performance of the electrochromic device is optimized while the technology is simplified and the cost is reduced.

The invention discloses an apparatus for removing nitrogen oxide in tail gas of a marine diesel engine and a removal method thereof, which belong to the technical field of exhaust-gas treatment of the marine diesel engine. The main fuel oil of the marine diesel engine is heavy fuel oil, and the tail gas contains a lot of nitrogen oxide. Through a mode by combining plasma and an adsorption phase, the novel technical design and the method are employed for processing NOx in the tail gas. A packed bed reactor is used for cyclic adsorption, at the same time, a low-temperature plasma technology is used for processing the tail gas, the NOx gas in the tail gas of the marine diesel engine can be effectively processed under normal temperature, and a final product is the elemental harmless gas. According to the invention, participation of a catalyst is not required for a tail gas processing method, secondary processing is not required for the final product, the equipment investment and equipment land occupation area are reduced, and the effective processing requirement on the tail gas of the marine diesel engine under dynamic complex condition is satisfied.

This invention relates to a method and device for using oil coke as fuel in circulation fluidized bed solving the difficulties of burned-out in burning, desulfurization and lumping, slag-bonding appearing in end flue pipe and cyclone separator in the circulation fluidized bed. This invented oil coke combined fuel includes oil coke, coal and desulfurizer which can effectively removed SO2 and eliminate lumping and slag-bonding phenomenon and big mesh sieving is applied for oil coke particles to form thicken or thin phase beds in firing chamber, suitable for subjects balance in bed; warm scuff-resistant coating is designed under the circulation fluidized bed to form high temperature zone good for firing of oil coke and burning-out, stepped burning is good for reducing NOx exhaust.