33results about How to "Decrease the gas-liquid ratio" patented technology

The invention discloses a liquid nitrogen pump equipment loading test and testing device and a test and testing method thereof, which are used for oil-gas field or coal bed gas nitrogen foam fracturing equipment tests. A waterpower damping device unit and a pressure regulation unit are specially arranged, wherein the waterpower damping device unit comprises a water tank, pump unit equipment and a pipe manifold system connected in turn; the pipe manifold system mixes normal-temperature high-pressure gaseous nitrogen from liquid nitrogen pump equipment and high-pressure water from the pump unit equipment to form a high-pressure liquid and gaseous mixture; and the pressure regulation unit pressurizes water discharged from the waterpower damping device unit by adjusting the flow of the high-pressure liquid and gaseous mixture. By loading through a waterpower loading device, the invention avoids technical difficulty and security risk brought by pressure loading of gas; the pressure regulation system is easy, convenient and accurate to operate; the nitrogen discharge of the liquid nitrogen equipment is controlled by a power transmission system and a fluid distribution system of the equipment per se without additional power; and the equipment cost and energy are saved.

The invention discloses a catalyst and a method for preparing beta-phenylethanol by the catalyst. The catalyst is a nickel-copper silicate composite echinus-shaped reactor type nanocatalyst. Accordingto the catalyst, the problem that the content of a byproduct, i.e., ethylbenzene is high due to the fact that a hydrogenation reaction speed of styrene oxide is too high and the supply of hydrogen isinsufficient is solved, the beta-phenylethanol can be prepared from the styrene oxide under mild conditions through high-selectivity and high-yield hydrogenation, the conversion ratio of the styreneoxide is higher than 99%, the selectivity of the beta-phenylethanol is not lower than 99.5%; and due to sufficient hydrogen supply, the high selectivity of the product can also be guaranteed under thecondition that hydrogenation of the styrene oxide is carried out in the absence of auxiliaries, the procedure of removing the auxiliaries is avoided, and product separating flows are simplified. Themethod for preparing the beta-phenylethanol can achieve continuous production of the beta-phenylethanol, and the production efficiency is increased greatly.

The invention discloses a top-mounted gas-liquid enhanced emulsification fixed bed reaction device and method. The top-mounted gas-liquid enhanced emulsification fixed bed reaction device comprises afixed bed reactor, at least one bubble breaker, a gas-liquid separator, a feeding pump, a gas inlet device and a liquid inlet device. A gas raw material and a liquid raw material are preheated and then respectively enter the bubble breakers from a gas phase inlet and a liquid phase inlet, gas is broken into micron-sized bubbles, the micron-sized bubbles are mixed with liquid to form a gas-liquid emulsion, and the gas-liquid emulsion then enters the fixed bed reactor from top to bottom; the micron-sized bubbles have the characteristics of low speed and difficulty in coalescence and keep the original form when penetrating through a catalyst bed layer, so that a stable gas-liquid enhanced emulsification fixed bed reaction system is formed; and a product obtained after the reaction enters a gas-liquid separator from a second discharge port, gas-liquid two-phase separation is carried out, and gas and liquid are collected separately for subsequent treatment. The device and the method have the advantages of low operation pressure, large gas-liquid mass transfer phase interface area, high apparent reaction speed, high gas utilization rate, low investment, low energy consumption, flexible process and the like.

The invention pertains to the technical field of extraction of bromine from brine, more particularly relates to the technique of oxidation and blow-out during the process of extraction of bromine from brine, and a device thereof, which improve the oxidation rate and blow-out rate of bromine during the extraction process and reduce energy consumption. The method is as follows: acid brine and chlorine are introduced into a rotating packed bed I, and the formed oxidation solution and air enter a rotating packed bed II to blow out free bromine. The device comprises two rotating packed beds, the liquid inlet of the rotating packed bed I is connected with a pump and the gas inlet thereof is connected with a chlorine pipe; the rotating packed bed I and the rotating packed bed II are connected bya storage tank; and the gas inlet of the rotating packed bed II is connected with a fan. The method has the advantages of improving the oxidation rate of bromonium ions, the utilization ratio of chlorine and the blow-out rate of free bromine, and reducing chlorine adding ratio, chlorine consumption amount, the causticity of the device during the process after the extraction of bromine and the process of salt extraction, gas-liquid ratio and operation cost; and the device occupies less land and is easy to be start and shut off and maintained.

The invention discloses a fuel oil atomization nozzle. The fuel oil atomization nozzle comprises a nozzle shell, an auxiliary gas way and oil way base, a main gas inlet nozzle, a nozzle core and a resonant tube. The fuel oil atomization nozzle is applied to a combustion heater, an ultrasonic atomization mechanism and a bubble atomization mechanism are combined, the resonant type inner ultrasonic wave-bubble combined atomization nozzle is designed, and the atomization nozzle which is low in gas-liquid ratio and good in atomization effect, has the self-cleaning function and can have good atomization capacity on light oil (such as kerosene) and heavy oil is obtained by combining the two advantages. Furthermore, according to the fuel oil atomization nozzle, the atomization process is simplified, and the length of the nozzle is reduced. Furthermore, according to the fuel oil atomization nozzle, the oil-gas ratio of bubble atomization can be adjusted by changing the number of gas inlet holes, the number of oil inlet holes, the opening size and the pressure of an auxiliary gas inlet pipe and a fuel oil guide pipe, and therefore fluctuation of the main gas way gas quantity and the influence of the gas quantity on the atomization performance are reduced.

This invention discloses a method for preparing high-alloy cold-working die steel by injection deposition. The method comprises: (1) preparing molten high-alloy cold-working die steel; (2) preparing high-alloy cold-working die steel green body by atomization deposition in inert gas when the temperature reaches required overheating degree. The components of molten high-alloy cold-working die steel are: C 1.45-1.55 wt.%, Cr 7.8-8.2 wt.%, V 3.9-4.1 wt.%, Mo 1.4-1.6 wt.%, Si 0.9-1.1 wt.%, Mn 0.3-0.5 wt.%, and Fe. Since atomization deposition is utilized, the obtained green body has tiny and uniform microstructure without macroscopic precipitation. The grain sizes of the green body are 2-10 mums, and the green body can be directly hot-rolled without forging. The method can avoid the occurrence of eutectic ledeburite, and has such advantages as simple process, low cost and low energy consumption.

The invention relates to a multistage liquefaction system and process for coal and biomass. The multistage liquefaction system comprises a liquid-phase feeding unit, a gas-phase feeding unit, a micro-interface generator, at least two reactors and a separation tank. According to the invention, gas is crushed to form micron-sized bubbles, and the micron-sized bubbles are mixed with biomass keroseneslurry to form a gas-liquid emulsion, so that the phase contact area of a gas phase and a liquid phase is increased, the effect of enhancing mass transfer within a lower preset range is achieved, andthe reaction efficiency of the system is improved while the energy consumption is reduced; meanwhile, mass transfer is greatly enhanced, so that the gas-liquid ratio can be greatly reduced, and the energy consumption of subsequent gas circulating compression is reduced while the gas material consumption is reduced; and the method is low in process severity, high in production safety, low in ton product cost and high in market competitiveness.

The invention discloses a novel desulfurizer packing material for seawater desulfurization and a preparation method thereof. The novel desulfurizer packing material for seawater desulfurization is prepared through the following steps of: adding a steeping liquor and porous Raschig ring washed by sulfuric acid into a stainless steel reaction kettle, wherein mass ratio of the steeping liquor to the Raschig ring is at 1:(10-1):1; stirring, regulating pH value to 3.0-5.0 through sulfuric acid, heating to 25-60 DEG C, stirring for 12-36 hours at constant temperature, heating to 85-100 DEG C, stirring, depositing and steeping at constant temperature for 24-48 hours, washing by water until discharged water is colorless, and calcining for 3-5 hours at 400-800 DEG C to obtain the novel desulfurizer packing material for seawater desulfurization. The method is simple and materials are cheap and easily available, and the defects of the conventional seawater desulfurization process which is incomplete in sulfite radicle oxidization of seawater absorbing liquid, large occupied room of aerator, high energy consumption and the like are overcome; and the novel desulfurizer packing material realizes coupling of absorption and oxidization in a desulfurization packing tower, and is environmental-friendly and economical.

The invention discloses a catalyst and a method for preparing β-phenethyl alcohol with the catalyst. The catalyst is nickel silicate-copper composite sea urchin-shaped nano-reactor type catalyst. The catalyst solves the problem that the hydrogenation reaction of styrene oxide is too fast and the hydrogen supply is insufficient, resulting in a high content of by-product ethylbenzene, and can make styrene oxide hydrogenate under mild conditions with high selectivity and high yield to produce β-benzene Ethanol, styrene oxide conversion rate > 99%, β-phenylethanol selectivity ≥ 99.5%, sufficient hydrogen supply, so that the hydrogenation of styrene oxide can also ensure high selectivity of the product under the condition of no additives, reducing desorption The auxiliary process simplifies the product separation process. The preparation method of β-phenylethanol can realize the continuous production of β-phenylethanol and greatly improve the production efficiency.

The invention relates to a naphtha hydrogenation micro-interface enhanced reaction system and method. The naphtha hydrogenation micro-interface enhanced reaction system comprises a liquid phase feeding unit, a gas phase feeding unit, a micro-interface generator, a fixed bed reactor and a separation tank. Compared with a traditional fixed bed reactor, the micro-interface generator is arranged on the fixed bed reactor, before reaction raw materials enter the reactor for reaction, pressure energy of gas and / or kinetic energy of liquid in the reaction process are / is converted into surface energy of hydrogen bubbles, hydrogen bubbles are crushed into micro-bubbles with a diameter of 1 [mu] m or more and less than 1 mm, such that the phase contact area of naphtha and hydrogen during a hydrogenation reaction process is effectively increased, the mass transfer efficiency between naphtha and hydrogen is improved, naphtha and hydrogen micro-bubbles are mixed after crushing so as to form a gas-liquid emulsion, and furthermore, the reaction efficiency between naphtha and hydrogen is enhanced within a relatively low preset pressure range.

The invention discloses a recovery method for iodine from wet-process phosphoric acid at a low gas-liquid ratio. The recovery method comprises the following steps: adding hydrogen peroxide into dilute phosphoric acid produced from phosphoric acid by a wet process and allowing hydrogen peroxide to react with dilute phosphoric acid; then blowing out molecular iodine by using air; absorbing molecular iodine by using an acidic solution; and finally adding hydrogen peroxide to allow iodine to be precipitated. The method is characterized in that molecular iodine is blown out by using normal temperature air and a volume ratio of blown air to liquid, i.e., a gas-liquid ratio, is low. The method has the following advantages: energy consumption is lowered down, layout of equipment is reduced, and investment cost is decreased; a gas-liquid ratio in blowing-out of molecular iodine by using a conventional extraction process for iodine from wet-process phosphoric acid is substantially decreased, fan delivery is reduced, investment cost for equipment is lowered down, and due to decrease of fan delivery, power consumption in the process of operation and operation cost are reduced; moreover, the low gas-liquid ratio enables the boundary dimension of an extraction tower to be effectively reduced and construction and maintenance cost for an apparatus to be substantially decreased.

The method discloses a method for simultaneously recovering iodine in iodine-containing fluosilicic acid and iodine-containing dilute phosphoric acid. The method utilizes an air blow-out method to realize iodine recovery. The method is characterized in that iodine-containing fluosilicic acid and iodine-containing dilute phosphoric acid are mixed into an iodine-containing mixed acid; in the same recovery device, the iodine-containing mixed acid and an oxidizing agent undergo a reaction; iodine molecules are blown out by normal-temperature air, wherein an air-liquid ratio which is a volume ratio of blown air to the iodine-containing mixed acid is low; and phosphoric acid and fluosilicic acid in the iodine-containing mixed acid can be separated by condensation. The method saves a construction investment and a space resource, reduces an equipment cost and energy consumption, reduces an operation cost, has good economic benefits, and saves manpower resources; before entering into an extraction tower, air is not heated and has a normal temperature so that energy consumption, equipment configuration and an equipment cost are reduced; through the low air-liquid ratio, the size of the extraction tower is effectively reduced and an equipment construction and maintenance cost is greatly reduced; and after iodine extraction, phosphoric acid and fluosilicic acid can be separated so that phosphoric acid production is promoted.

The invention relates to a seawater desulfurization device for tail gas of a marine diesel engine. The seawater desulfurization device comprises a shell, an air flow inlet flange, a tail liquid collecting tank, a tail liquid separator, a uniform air flow distributor, a turbulent flow ball layer, a parallel independent straight-pipe cross flow spraying device, a dehumidification device and an air flow outlet flange, wherein the air flow inlet flange is mounted at the bottom of the shell; the tail liquid collecting tank is mounted inside the shell and is located above the air flow inlet flange; the tail liquid separator is mounted inside the shell and is located above the tail liquid collecting tank; the uniform air flow distributor is mounted inside the shell and is located above the tail liquid separator; the turbulent flow ball layer is mounted inside the shell and is located above the uniform air flow distributor; the parallel independent straight-pipe cross flow spraying device is mounted inside the shell and is located above the turbulent flow ball layer; the dehumidification device is mounted in the shell and is located above the parallel independent straight-pipe cross flow spraying device; and the air flow outlet flange is mounted above the dehumidification device and is located at the top of the shell. According to the seawater desulfurization device, independent straight-pipe-type optimization is carried out on a spraying manner, the height, pressure loss and gas-liquid ratio of the desulfurization device are reduced on the premise of not increasing equipment and operation, and the desulfurization efficiency is effectively improved.

The invention relates to an enhanced reaction system and method for alkane oxidation. The enhanced reaction system comprises a liquid-phase feeding unit used for storing and conveying liquid alkane ofC4 or above, a gas-phase feeding unit, a micro-interface generator, a reactor and a separation tank. Gas is crushed to form micron-sized bubbles, the micron-sized bubbles and alkane are mixed to forma gas-liquid emulsion, the phase contact area of a gas phase and a liquid phase is increased, meanwhile, the thickness of a liquid film is reduced, the mass transfer resistance is reduced, the effectof enhancing mass transfer within a low preset operation condition range is achieved, and the energy consumption can be greatly reduced while the reaction efficiency is guaranteed; and meanwhile, mass transfer is greatly enhanced, so that the gas-liquid ratio can be greatly reduced, and the energy consumption of subsequent gas circulation compression is reduced while the gas material consumptionis reduced.

The oil well gas-liquid mixture conveyer consists of gas-liquid mixture conveying pump and gas-liquid separator connected via pipes. Oil well gas-liquid mixture entered by the inlet pipe is pressure raised in the pump before entering the gas-liquid separator by the outlet pipe. Partial liquid from the gas-liquid separator is returned via the lower outlet and reflux pipe to the inlet of the gas-liquid mixture conveying pump, and the separated gas and the other part of the liquid are output via the upper outlet and outer pipe. The reflux liquid flow rate is adjusted by the adjusting valve. The present invention has lowered gas / liquid ratio into the pump to avoid gas lock and to ensure the normal operation of the pump.

The invention relates to the technical field of waste water treatment for thermal power generation, in particular to an intelligently adjustable waste water zero discharge system and method. The system includes evaporation tower, intelligent adjustment center, inlet flue, waste water pipe and outlet flue; the inlet flue is connected with the flue gas inlet of the evaporation tower, the waste water pipe is connected with the waste water inlet of the evaporation tower, and the outlet flue is connected with the The flue gas outlet is connected; the flue gas parameter monitoring device and the flue gas parameter adjustment device are installed on the inlet flue; the wastewater parameter monitoring device and the wastewater parameter adjustment device are installed on the waste water pipe; the outlet flue gas parameter monitoring device and the outlet The flue switch baffle; the flue gas parameter monitoring device, the wastewater parameter monitoring device, the outlet flue gas parameter monitoring device, the outlet flue switch baffle, the flue gas parameter adjustment device and the wastewater parameter adjustment device are all connected to the intelligent adjustment center. The system can solve the problems of endless evaporation of waste water or waste of heat when the operating conditions of the unit change.

The invention relates to the technical field of thermal power generation wastewater treatment, in particular to an intelligently adjustable wastewater zero discharge system and a method. The system comprises an evaporation tower, an intelligent adjusting center, an inlet flue, a wastewater pipeline and an outlet flue, the inlet flue is communicated with a flue gas inlet of the evaporation tower, the wastewater pipeline is communicated with a wastewater inlet of the evaporation tower, and the outlet flue is communicated with a flue gas outlet of the evaporation tower; a flue gas parameter monitoring device and a flue gas parameter adjusting device are arranged on the inlet flue; a wastewater parameter monitoring device and a wastewater parameter adjusting device are arranged on the wastewater pipeline; an outlet flue gas parameter monitoring device and an outlet flue switch baffle are arranged on the outlet flue; the flue gas parameter monitoring device, the wastewater parameter monitoring device, the outlet flue gas parameter monitoring device, the outlet flue switch baffle, the flue gas parameter adjusting device and the wastewater parameter adjusting device are all connected with the intelligent adjusting center. The system can solve the problem that waste water cannot be evaporated completely or heat is wasted when the unit operation condition changes.