61results about How to "Improve deacidification efficiency" patented technology

The invention relates to a method for preparing polyol ester lubricating oil by using a composite solid acid catalyst. The method comprises the following steps of: adding a water carrying agent into polyol ester and monobasic fatty acid, performing esterification reaction under the action of the composite solid acid catalyst, and dehydrating and esterfying to obtain raw ester; performing filter pressing on the raw ester to separate the raw ester from the solid acid catalyst, wherein the catalyst can be recycled; and performing reduced pressure distillation on the raw ester to remove the residual fatty acid, and then deacidifying and decolorizing to refine with heating by using a refining adsorption bed layer respectively to obtain low-acid value polyol ester lubricating oil. The method has the advantages that the catalyst can be recycled, the esterification rate is high, an aftertreatment process is simple, and a product is low in acid value, high in purity, environment-friendly and suitable to be produced industrially. The reaction esterification rate can reach over 99 percent, and the acid value of the ester product obtained through refining can be controlled to be less than 0.01mg KOH/g. The product is excellent in visco-temperature performance, high in lubricity and thermal stability, strong in hydrolytic stability, low in volatility and excellent in electrical insulation property.

The invention discloses multifunctional nano compound treating fluid for protecting paper cultural relics. The multifunctional nano compound treating fluid takes deionized water as a solvent, and comprises nano magnesium hydroxide, nano titanium dioxide and hydroxyethyl cellulose, wherein nano magnesium hydroxide accounts for 0.2-1.0% of the weight of deionized water, nano titanium dioxide accounts for 0.1-0.8% of the weight of deionized water, and hydroxyethyl cellulose accounts for 0.2-0.8% of the weight of deionized water. The invention also discloses a preparation method of the multifunctional nano compound treating fluid. The multifunctional nano compound treating fluid can be used for large-area treatment of the paper cultural relics, and can be used for providing protection for deacidification, solidification, light-resistant degradation and mould proofing of the paper cultural relics during a large-area treatment of the paper cultural relics. The pH value of the paper cultural relics treated by the multifunctional nano compound treating fluid can reach an alkalescence degree, and the paper cultural relics have a certain alkali residue, can resist external acid, can be greatly improved in tensile strength, and have a certain antibacterial property.

The invention discloses a wet-type purification treatment method and device for flue gas of a domestic garbage incineration power plant. An ammonia water quenching device, a power spray activated carbon device and a bag-type dust collector are sequentially connected through air ducts, the air inlet end of the ammonia water quenching device can be connected with the flue gas outlet end of the domestic garbage incineration power plant, and a compressed air system is further connected to the air duct between the ammonia water quenching device and the power spray activated carbon device; a compressed air system is arranged below a dust hopper of the bag-type dust collector, the dust hopper is connected with a flying dust bin through a pipeline, an outlet flue of the bag-type dust collector is connected with a washing and concentration section of a wet-type deacidifying tower through a pipeline, and the wet-type deacidifying tower comprises an absorption section, the washing and concentration section and an oxidizing section; spray nozzles capable of spraying ammonia water are arranged in the absorption section of the wet-type deacidifying tower, a flue gas exhaust pipeline of the wet-type deacidifying tower is connected with defogging equipment, the oxidizing section of the wet-type deacidifying tower is connected with an oxidation air blower, and an ammonia chloride and ammonia sulfate outlet of the oxidizing section of the wet-type deacidifying tower is connected with crystallizing equipment.

The invention relates to a smoke gas purification device by a semidry process, which is provided with an independent desuperheating tower, comprising a reaction tower provided with an smoke inlet box, a smoke gas outlet, a venturi tube type tower wall arranged on a tower bottom, a water injector arranged on the tower wall and a nozzle for lime dry powder and revert dust; and the smoke gas outlet is connected with an inertia separator, an activated carbon mixer, a bag-type dust remover and a draught fan. The invention is characterized in that the invention is also provided with the desuperheating tower which is provided with a boiler smoke gas inlet manifold, a single-stage water injector, an ash bucket with an ash hole and a gas flue; the gas flue of the desuperheating tower is connected with the smoke inlet box into one unit. The boiler smoke gas disperses within the two towers for cooling, thereby improving the adaptability of a system to a load; the boiler smoke gas particularly can be cooled down urgently to a set temperature in the desuperheating tower; and the reaction tower can be humidified only by evaporation with a little water to complete a deacidifying reaction and remove dioxin, thereby avoiding the disadvantages of scale formation on the tower wall of the prior reaction tower and bag burning of the bag-type dust remover, guaranteeing a sustaining and stable smoke purification process and having the advantages of good purification effect and low energy consumption.

The invention discloses a waste incineration flue gas purifying system and a waste incineration flue gas purifying process. The waste incineration flue gas purifying system comprises a semi-dry type adsorption tower, a lime slurry preparation system, an active carbon injection system and a bag type dust remover, wherein a rotary sprayer is connected with the lime slurry preparation system; the rotary sprayer is arranged at the top end of the semi-dry type adsorption tower; an exhaustion port of the semi-dry type absorption tower is formed in the bottom end of the semi-dry type adsorption tower; a gas inlet of a flue gas pipeline is connected with the semi-dry type adsorption tower; the active carbon injection system is arranged on a flue gas pipeline arranged between the semi-dry type adsorption tower and the bag type dust remover; the bag type dust remover is connected with a gas outlet of the flue gas pipeline; a filter medium adopted in the bag type dust remover is a dust-removing bag; an exhaustion port of the bag type dust remover is formed in the bottom end of the dust-removing bag; a centrifugal air blower and a chimney are arranged at an air outlet. According to the purifying system and the purifying process disclosed by the invention, wastewater is not generated, the water consumption amount is less than that of a wet-type washing tower, the process is simple, and the investment and operation cost is relatively lower.

The invention provides a method for recovering naphthenic acid from hydrocarbon oil and a device thereof. The method comprises: reacting a raw material oil and deacidified solvent in a static mixer, and delivering the oil and agent mixture obtained after reaction into a settling separation tower, wherein the mixture is divided into two layers in the tower, the upper naphthenic-acid-containing deacidified solvent is distilled in a decomposing distillation tower for distillation, the deacidified solvent evaporated out is returned to a deacidified solvent tank to be circularly used, and coarse naphthenic acid discharged from the bottom of the decomposing distillation tower is delivered into a naphthenic acid refining tank for refining treatment and thus refined naphthenic acid is obtained; and the lower deacidified raw material oil in the settling separator tower is delivered to a raw material distillation tower, a small amount of deacidified solvent is evaporated out from the top of the tower and is returned to a deacidified solvent tank to be used circularly, and the deacidified raw material oil is discharged out from a raw material distillation tower. When the method and the device are used, the acidity and corrosion of the oil can be reduced, the naphthenic acid byproduct with high added value can be obtained, the deacidified solvent is cheap and readily available and can be circularly used for a plurality of times, and waste gas, waste water and waste residue are not discharged.

The invention discloses a waste gas dust removal and adsorption treatment device which comprises a box body I, a box body II, an induced draft fan, an adjusting mechanism, a filtering mechanism, an adsorption mechanism and a deacidification mechanism, the box body I is arranged on one side of the box body II; the induced draft fan is arranged between the box body I and the box body II and connected with each other through a pipeline; the adjusting mechanism, the filtering mechanism and the adsorption mechanism are arranged in the box body I, the adjusting mechanism is arranged at the bottom end of the box body I, the adsorption mechanism is arranged at the top end of the box body I, and the filtering mechanism is arranged between the adjusting mechanism and the adsorption mechanism; the deacidification mechanism is arranged in the box body II; an air inlet pipe I is arranged at the bottom of the box body I, an air outlet pipe I is arranged at the top and connected with an induced draft fan, a discharge port and a replacement port I are formed in one side of the box body I, and a replacement port II is formed in the other side of the box body I; an air inlet pipe II is arranged at the bottom of the box body II and connected with the induced draft fan; an air outlet pipe II is arranged at the top of the box body II. By using the filtering mechanism and the adsorption mechanism, the waste gas treatment efficiency can be improved.

The invention belongs to the field of deep processing and comprehensive utilization of agricultural and sideline products and provides a depickling method of cold-pressed peony seed oil. according to the method, cold-pressed peony seed degummed oil is used as a raw material, sodium hydroxide and diatomite are selected for the preparation of an alkaline diatomite depickling agent, and an ultrasonic-assisted method is adopted for cooperative depickling of peony seed oil. The method has integrated effects of physical adsorption and chemical adsorption. On one hand, depickling efficiency of peony seed oil is raised by accelerating an acid-base reaction rate; and on the other hand, quality of peony seed oil is improved and the flavor of peony seed oil is maintained. The method has advantages of simple operation, short time consumption, high depickling efficiency, less energy consumption and high safety. In addition, quality of cold-pressed peony seed oil is optimized and flavor of peony seed oil is maintained. And the problem of large equipment investment is also solved.

The invention discloses a waste incineration flue gas purification method and a system. The waste incineration flue gas purification method comprises the following steps: (1) enabling waste incineration flue gas to flow through an SNCR treatment system to be subjected to denitration treatment; (2) enabling outlet flue gas of the SNCR treatment system to enter a semi-dry reaction tower for deacidification treatment; (3) introducing outlet gas of the semi-dry reaction tower into a bag type dust collector for dust removal treatment; (4) heating outlet gas of the bag type dust collector, and enabling the heated outlet gas of the bag type dust collector to enter into an SCR reaction tower for further denitration treatment; and (5) cooling outlet gas of the SCR reaction tower, and feeding the cooled outlet gas into a wet-process washing tower for further deacidification treatment, thereby realizing purification of the waste incineration flue gas. The treatment process of SNCR-semi-dry method-activated carbon adsorption-bag type dust removal-SCR-wet method is adopted, and efficient purification treatment of the household garbage incineration flue gas can be achieved.

The invention discloses a paper deacidification device, belonging to the technical field of paper deacidification. The paper deacidification device comprises a workbench panel, wherein the bottom partof the workbench panel is provided with a mounting cavity; a stirring tank and an air compressor are arranged in the mounting cavity; the paper deacidification device also comprises a mechanical armassembly and an air-blowing diffusion unit; the mechanical arm assembly comprises an X-axis mechanical arm arranged at the lower part of the workbench panel and running along the long-side direction of the workbench panel, a Y-axis mechanical arm arranged at the upper part of the workbench panel and running along the wide-side direction of the workbench panel, and a U-shaped support used for connecting the X-axis mechanical arm and the Y-axis mechanical arm; a liquid spray head used for spraying a deacidification liquid is arranged on the Y-axis mechanical arm; the liquid spray head and the stirring tank are in connection; the air-blowing diffusion unit comprises an air-controlled valve group, an air pipe and an air spray head; the air spray head is arranged on the Y-axis mechanical arm; one end of the air pipe is connected with the air compressor through the air-controlled valve group; and the other end of the air pipe is connected with the air spray head.

The invention relates to a flue gas treatment system biogas utilization method, and belongs to the field of flue gas treatment technology. Biogas is connected with a dehydration and desulfurization device through a positive and negative pressure protection device, the dehydration and desulfurization device is connected with a pressure fan, the pressure fan is connected a flame arrester, the flame arrester is connected to a biogas furnace, a combustion fan feeds air into the biogas furnace, the biogas furnace is connected to a fluidized air plate heater, fluidized air is heated via the plate heater with the aid of biogas burning heat, and the electric heating step of fluidized air is replaced. The method has the advantages that the original fluidized air electric heater is replaced with the biogas hot blast furnace. The high-temperature flue gas after the combustion of biogas heats circulating fluidized air through the fluidized air plate heater to realize waste recycling and save electricity, and environmental pollution caused by biogas is reduced.

The invention discloses a method for deacidifying a whole volume of paper. The method is used for deacidifying a whole book in three steps of prepressing, rapid deacidifying and homogenizing. On the basis of a static pressure whole volume deacidification method, a homogenization process is added, so that the deacidification effect stability is improved; and the high-voltage alternating current is used on the basis of the existing low-voltage direct current adsorption technology, so that the deacidification efficiency of the whole book is effectively improved, and meanwhile, the problem of non-uniform deacidification of the book caused by enrichment of anions and cations on a certain electrode is avoided. The deacidification operation is convenient, the deacidification process is environment-friendly, and accurate deacidification can be realized.

The invention discloses a flue gas deacidifying device, the flue gas deacidifying device comprises a tower body, the tower body is internally provided with a first spraying part and a second sprayingpart, the first spraying part is used for spraying out a circulating fluid to deacidify the flue gas, the second spraying part is located at the upper part of the first spraying part, a plurality of sieve plate parts used for triggering the diffusion of the circulating fluid to deacidify the flue gas when the circulating fluid is sprayed out are further arranged in the inner part of the tower body, the sieve plate parts are located between the first spraying part and the second spraying part, and a filtering part used for separating the gas from the liquid is further arranged at the upper partof the second spraying part. The invention further discloses a flue gas deacidifying method. The flue gas deacidifying device and the flue gas deacidifying method have an efficient deacidifying effect, are low in use cost, and are stronger in applicability particularly under the conditions that the concentration of the acid of the flue gas is relatively high and the space is limited.

The invention provides a wet washing device and a cooling method during flue gas washing, the wet washing device comprises a flue gas washing circulating system and a dehumidification circulating system, the flue gas washing circulating system is used for washing flue gas, the dehumidification circulating system is used for dehumidifying the flue gas, the wet washing device further comprises an inlet spraying system, the inlet spraying system comprises a water tank, a spraying liquid conveying pipeline, a spraying piece and an inlet flue, the water tank is connected with the spraying liquid conveying pipeline, the spraying liquid conveying pipeline is connected with the spraying piece, and the spraying piece extends into the inlet flue for spraying. When the wet washing device is used for washing the flue gas, the flue gas is sprayed to the inlet flue through the inlet spraying system so as to reduce the heat of the flue gas.