182results about How to "Large mass transfer area" patented technology

The invention relates to a high performance double multiple thin layer micro-contact mixer used for rapid mix, mass transfer and reaction of fluids in the chemical process, which belongs to the field of reaction and separation devices of chemistry and chemical engineering. The micro-contact mixer is formed by inserting an upper cavity chamber and a lower cavity chamber into an integral shell or by lapping closely connected shell components; a fluid inlet pipe of material A and a distribution chamber are communicated with a fluid parallel channel of material A; a fluid inlet pipe of material B and a distribution chamber are communicated with a fluid parallel channel of material B, thus forming the lower cavity chamber; a fluid mixing chamber and a mixed fluid outlet pipe are communicated to form the upper cavity chamber; two fluids enter the mixer from the inlet pipe through the distribution chamber respectively to make multiple thin layer contact in the fluid mixing chamber to realize rapid mix, mass transfer and reaction. The micro-contact mixer has the advantages of high mass transfer efficiency, high operational elasticity, uneasy blocking, easy processing and manufacturing and has good prospects in mixing and reaction fields such as the chemistry, chemical engineering, petrol-chemical industry, medicine and food.

The invention discloses an atomizing flashing deaminasing method with ammonia nitrogen waste water, which comprises the following steps: adjusting pH value of ammonia nitrogen waste water over 11; transmitting waste water to the atomizer on the top of atomizing tower; forming drip or fog drip; connecting atomizing tower and vacuum pump or fan through pipe; flashing ammonia and nitrogen in the negative pressure environment; extracting the flashed material; moving non-evaporated water from upwards to downwards; falling to bottom of atomizing tower to reserving groove; repeating those courses until reaching technological need.

The invention provides an enzymatic pretreatment assisted curcumin extraction technology. The enzymatic pretreatment assisted curcumin extraction technology comprises steps as follows: after 1 part of curcuma powder is taken, ground, sieved, added with water and stirred uniformly, the mixture is subjected to water bath for 60 min and is cooled to the constant temperature of 52-58 DEG C, and curcuma pulp is obtained; compound enzyme comprising cellulase, amylase and papain is added to the curcuma pulp and reacts for 2-4 h, and enzymatic hydrolysate is obtained; the enzymatic hydrolysate is taken, added with an ethanol solution and homogenized for 1-2 min under the condition of 8,000-9,000 r/min, and a curcumin extracting solution is obtained; finally, a flocculant is added to the extracting solution, the mixture is stirred and filtered, a clear liquid flows through an activated carbon chromatographic column and is eluted with an alkaline solution, and a curcumin desorbed solution is obtained. The technology has the advantages of high extraction speed, low temperature, low energy consumption, high yield of the effective component curcumin, stable product quality and controllable reaction conditions, and is applicable to industrial large-scale production.

The invention relates to a window and hole combined flow guide regular filler sheet and a filler. The crest and trough of a corrugated filler sheet are provided with a hole and a window which are communicated to form a window and hole combined structure; an inclination angle is formed between the ripple direction of the corrugated filler sheet and the vertical direction; a regular filler consists of the window and hole combined flow guide regular filler sheets which are parallel to one another and of which the ripple directions are arranged in a staggered mode; and when the tower diameter is larger, a plurality of regular fillers are arranged, and corrugated sheets of the fillers on an upper tray and a lower tray rotate by 15 to 90 degrees. Under the action of fluid velocity and gravity, flowing liquid can be more effectively aggregated due to a hole structure; and a window structure connected with the hole structure is just positioned below the hole structure, so that the liquid flowing down is guided to the crest position on the other side of the filler sheet, the turbulent degree of a gas-liquid phase liquid film between adjacent window bodies is increased, pressure drop is reduced, gas-liquid flux is increased, and the updating of the liquid film and the increase of gas-liquid mass transfer area are more effectively realized.

The invention relates to a preparation method of polychlorotrifluoroethylene resin, which adopts a horizontal reactor with an aspect ratio ≥ 1.0 as polymerization equipment; uses chlorotrifluoroethylene monomer or chlorotrifluoroethylene monomer and other comonomers The polymerization reaction occurs under constant pressure conditions, which improves the reaction speed and polymerization efficiency; the semi-mechanical and semi-chemical coagulation method is used to effectively separate the impurities in the emulsion, and the residual unstable groups are removed through wet heat treatment, effectively reducing the volatilization of the product parts, greatly improving the appearance of the product. M can be obtained by the method of the present invention _η PCTFE and its copolymerization products exceeding 500,000, volatile matter less than 0.01%, strength loss temperature higher than 260°C, yellowness index (YI) less than 10.

The invention discloses a multi-nozzle jet-flow micro-nano bubble aerator, which comprises a plurality of nozzle-type water pumps and air bubble aeration nozzles which are respectively communicated with the nozzle of the water pump, wherein each air bubble aeration nozzle comprises an aeration nozzle main body, a water pipeline and an air distribution pipeline. The air distribution pipeline and the water pipeline are vertical to each other and respectively provided with a leaf, so that the air flowing into the water pipeline from the air distribution pipeline can be cut by the high-speed flowing water into a great amount of micro-nano bubbles with ultra-small diameter by utilizing a cavity principle, the stop time of the bubbles in the water and the transferring area of the bubbles and the water can be greatly increased, the oxygen dissolving efficiency can be improved, and the biochemical reaction efficiency of aerobic bacteria in the water can be improved.

The invention relates to one 3D electrode for direct borane fuel battery anode method, which is characterized by the following steps: processing filling bed electrode or multi-hole electrode as three dimensional anode and alkalinity liquid fuel, wherein, the cathode contacts oxygen, air and auricome agent and the middle ion exchange isolation film forms direct borane fuel battery system; borane fuel materials touching three dimensional electrode and alkalinity compound with materials feeding type as through or back entering type.

The invention discloses an intermittent ultrasonic assisted low-salt salted egg pickling technology. Low-salt salted eggs can be obtained with the technology through pretreatment of duck eggs, pickling of duck eggs, desalting and cleaning. An ultrasonic technology is creatively used in assisting the salted egg pickling process, the table salt permeation rate is increased, the pickling period is shortened, the salted eggs can be well pickled within 15 days with the technology, and the pickling period is 20 days shorter than that in a traditional method. The well pickled salted eggs are placed in a 1% table salt solution to be desalted, the salt content of salted egg white can be decreased to 3.58% within 6 days, and the salinity is proper. In general, salted eggs with high oil yield and lowsalt can be pickled within 21 days.

The invention relates to a membrane dispersion extraction device. The membrane dispersion extraction device comprises an air bubble disperse phase device and an gas-in-oil disperse phase device which is connected with the air bubble disperse device in series; the air bubble disperse phase with air bubbles having uniform sizes are formed in the air bubble disperse phase device; the air bubble disperse phase enters the gas-in-oil disperse phase device to mix with a flowing water phase to complete an extraction separation process. In the extraction separation process, the mass transfer area and the mass transfer velocity are effectively increased by a micrometer scale structure of the gas-in-oil and turbulent flow and vortex produced by the water phase near the gas-in-oil, so that the extraction effect is improved. The device is simple in structure and relatively easy to industrialize. Meanwhile, the invention further discloses a method of extracting and separating rear-earth elements by virtue of the device, wherein the method is high in extracting efficiency for rear-earth elements, great in separating coefficient and relatively easy to realize industrialization.

The invention relates to a guiding sieve plate float valve tower, belonging to a gas-liquid mass-transfer separation plant in chemical process. The guiding sieve plate float valve tower disclosed herein mainly comprises a tower body (1), a tower plate (2), a down-flow plate (7), a seal pan (9), etc., wherein the liquid inlet of the tower plate (2) is provided with a bubbling promoter (6), the plate surface of the tower plate is provided with a floating tongue (3), a guiding pore (4), a sieve pore (5) and a float valve. According to the invention, when the gas velocity is low, the float valve on the tower plate is not open, gas only passes through the guiding pore (4), the sieve pore (5) and the floating tongue (3); when the gas velocity increases to a certain level, the float valve is open, and the opening height of the float valve increases gradually with the increase of the gas velocity. The guiding sieve plate float valve tower disclosed herein has the advantages of simple structure, low cost, and greatly raised operation flexibility and separation efficiency.

The invention discloses an extraction device comprising an emulsifying machine (1) and a phase-splitting apparatus (2). The emulsifying machine (1) is provided with an emulsifying machine inlet (3) and an emulsifying machine outlet (4), the phase-splitting apparatus (2) is provided with a mixed phase inlet (5), a heavy phase outlet (6) and a light phase outlet (7), the emulsifying machine inlet (3) is connected with an extracted object inlet (8) and a solvent inlet (9), and the emulsifying machine outlet (4) is connected with the mixed phase inlet (5) of the phase-splitting apparatus. When multistage extraction devices are combined, the light phase outlet of the phase-splitting apparatus in the extraction device at the current level is connected with the solvent inlet of the extraction device at the next level through a pipeline provided with a pump, and the heavy phase outlet of the phase-splitting apparatus in the extraction device at the next level is connected with the extracted object inlet of the extraction device at the current level through the pipeline provided with the pump. The invention has high extraction efficiency, small size, less occupied area, simple operation and capability of saving apparatus investment and running cost.

Provided is a crude oil distilling method and a device for pressure type feeding. The device comprises an atmospheric distillation portion and a reduced pressure distillation portion. A primary vacuum tower is arranged in front of a vacuum furnace, and tower bottom oil of the primary vacuum tower is heated and wormed by the vacuum furnace and then led into a secondary vacuum distillation tower to be distilled, wherein all of an atmospheric tower, the primary vacuum tower and the secondary vacuum tower adopt a pressure type feeding system to atomize raw materials into liquid droplets to be sprayed into the distillation towers. By means of the method, the raw materials are atomized into the liquid droplets to be sprayed into the distillation towers, thereby increasing vapor-liquid interphase mass transfer area and improving vaporization ratio of a fractionating tower vaporized section. The primary vacuum tower is arranged in front of the vacuum furnace, an extracted portion comprises light components, and the heat load of a heating furnace and the device loss can be reduced under the condition that processing amounts at the reduced pressure distillation portion are the same.

The invention relates to an efficient absorption method for 2-cyanopyridine. The method comprises the following concrete steps: in a process of preparing 2-cyanopyridine by ammoxidation of 2-methylpyridine, cooling and absorbing mixed gas with the temperature of 200-230 DEG C, obtained through primary cooling after ammoxidation reaction by taking high-pressure fine water mist as an absorbent, wherein the particle size of the high-pressure fine water mist is not more than 100 microns (preferably less than 50 microns). According to the method, the mixed gas generated by ammoxidation during production of 2-methylpyridine is quickly cooled and absorbed by the high-pressure fine water mist with the particle size of not more than 100 microns, so that the hydrolysis of 2-cyanopyridine is inhibited and the absorption efficiency is improved.

The invention relates to the field of mechanical equipment and provides an oil-water rheological device. The oil-water rheological device comprises a tank body, wherein a steam outlet and an aromatic water inlet are arranged at the top of the tank body; a cooling liquid outlet is arranged at the bottom of the tank body; a steam inlet is arranged at the lower part of the tank body; a sieve plate is arranged in the tank body; a plurality of through holes are formed in the sieve plate; the edge of the sieve plate is connected with an inner wall of the tank body; the sieve plate is arranged above the steam inlet. The oil-water rheological device provided by the invention can be used for extracting aromatic water, which is remained after essential oil is extracted, again; the extraction rate of volatile oil is increased and wastes are avoided. The invention further provides a traditional Chinese medicine essential oil extraction system; the traditional Chinese medicine essential oil extraction system comprises the oil-water rheological device. The traditional Chinese medicine essential oil extraction system has relatively high essential oil extraction rate.

An improved internal electrolytic iron bed as water treating apparatus is composed of a water-treating cylinder, an axially arranged internal short cylinder, silt collecting hopper under said water-treating cylinder, the cubic iron filler between said internal and external cylinders or in internal one, and air distributor under the space between said internal and external cylinders. Its advantages are high activity, large mass transfer area and high treating effect.