• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    GAS-LIQUID INJECTOR. FOR PHOTOCHEMICAL REACTORS, comprising a cylindrical body with a mixing chamber and round holes made therein and a supply nozzle connected to the body along its axis, characterized in that, in order to intensify the process of mixing gas and liquid, it is provided with a conical element placed between the housing and the inlet pipe, and the round holes are made with a cross section of 0.25-2.0 times the diameter of the inlet pipe and are located on the conical element, while the angle between the holes and the driving nozzle is 30-90 °, and the ratio of the height of the mixing chamber to its diameter is 1: 1-3i1.
    公开号:SU1126204A3
    申请号:SU802936508
    申请日:1980-06-13
    公开日:1984-11-23
    发明作者:Рамлох Херберт；Шадов Эрнст；Маркс Раймунд
    申请人:Хехст Аг (Фирма)；
    IPC主号:
    专利说明:

    a 1 The invention relates to the design of gas-liquid injectors and can be used in photochemical gas-liquid reactions, especially when using the sulfo-oxidation method to produce secondary alkanesulphonic acids from paraffinic hydrocarbons with a straight chain in the presence of water by irradiation with ultraviolet rays. mixing chamber and round holes and inlet connection connected to the body along its axis ll. A disadvantage of the known injector is the low efficiency of gas and liquid mixing. The purpose of the invention is to intensify the process of mixing gas and liquid. This goal is achieved by the fact that a gas-liquid injector for photochemical reactors, comprising a cylindrical body with extra holes in a non-mixing chamber and round holes, and an inlet pipe connected to the body along its axis, is provided with a conical element placed between the body and the inlet pipe round holes are made with a cross-section equal to 0.25-2.0 of the diameter of the inlet pipe, and are located on the conical element, while the angle between the holes and the inlet pipe is 30-90, and the ratio of the height to mixing is th camera to its diameter is 1: 1-3: 1. The drawing shows a general view of the injector, longitudinal section. The gas-liquid injector for photochemical reactors contains a cylindrical body 1 with a mixing chamber 2 and circular openings 3 made therein, a supply nozzle 4 connected to the body along its axis, and a conical element 5 placed between the body 1 and the supply nozzle 4. Round the holes 3 are made with a cross section different in 0.25-2.0 diameters of the inlet pipe 4, and are located on the conical element 5, the angle between the holes 3 and the inlet pipe 4 being 30-90, and the ratio of the height of the mixing chamber 2 to its diameter is 1: 1-3 :one. The internal cross section of the gas inlet 4 is circular to star-shaped 4, and its length is not critical, but it must be long enough to ensure a sufficient distance of the suction holes 3 from the base of the housing 1 or (with a multi-tube reactor) from a common gas supply pipe so that each phase before the gas flow can be sucked in unhindered through the suction ports. As the material from which these gassing plants are made, it is especially suitable for use in glass sulfonated polytetrafluoroethylene when using sulfo-oxidation. These gassing devices are mounted in a reactor under a UV immersion lamp, namely, one nozzle per lamp immersed, and these nozzles in a multi-tube reactor for one row of submersible lamps can be mounted respectively on a common gas supply pipe. The aeration density for a sufficiently fine gas distribution and a particularly favorable flow pattern along the longitudinal direction of the lamp is about 50-500 m, preferably 200-500 m on. It should be borne in mind that the preliminary gas pressure also depends on the liquid level above the nozzle. The high-velocity gas mixture leaves the narrow part of the nozzle in nozzle 4 into the funnel-like expansion of chamber 2, as a result of which fluid is sucked through the side openings 3. Due to the shear forces of the intake fluid, a fine distribution of the gas mixture is obtained. A liquid and gas stream emerges from chamber 2, which informs the movement of the entire reaction liquid inside the reactor according to the principle of the Mammut pump. Due to the design of this gassing plant, it is ensured that mass transfer in the adjacent area of the outer envelope of the lamp tube, i.e. in the region of maximum irradiation density, the concentration of gas bubbles is best in this region as well and the mass transfer rate itself is high. With the help of this gassing plant, a high yield of alkanesulfonic acids is obtained by simple means, due to the improved use of emitted UV light and better mass transfer. This is valid both for use in a single-tube reactor and in a multiplex holo-reactor. The proposed gas plant is used for all gas-liquid reactions, but mainly for the production of secondary alkanesulphonate sulfonic-oxidation. In this case, P-paraffin hydrocarbons or their mixtures with 8–30 C atoms, mainly with 10–18 C atoms, and m5 are also used. a SOj-O mixture in a molar ratio of about 2: 1, i.e. in stoichiometric ratio, or mainly with an excess to a molar ratio of about 3: 1. The reaction temperature is 20-40 ° C, preferably 30-38 ° C. Pressure is maintained in the reactor to approximately 1 g. bar, mostly 0.08-0.25 g. bar. The reaction liquid is withdrawn at the base of the reactor, passes through a separating device, and there the lower phase is separated, which contains the alkanesulfonic acids obtained and the sulfuric acid along with the paraffin and water. The upper phase, the paraffin phase is cooled and then, after being refreshed with paraffin and water, is sent back to the upper part of the reactor. The selection of the gas mixture SOj-0, which is also directed to the circulation, is made from the gas zone in the upper region of the reactor. After the addition of SOj and O ,, the gas mixture into the compressor is compressed to the required pre-pressure and is introduced into the reactor through the proposed gas plant. Example. The reaction mixture employed is a commercial fraction of p-paraffins with 12-18 ° C at-ohms. From the bottom of the reactor 4, liquids are taken out, passed through a separating device, and after being refreshed with paraffin and water, the pump is pumped back through a part of the reactor. The reactor is about 5/6 of its volume filled with liquid and about 1/6 of its gas. The pressure in the gas space of the upper part of the actor is 0.13 bar. The reaction temperature is maintained by cooling the circulating fluid at 31-33 ° C. The irradiation with ultraviolet light takes place with the help of a high-pressure mercury lamp with hermetic fittings with a capacity of 3.84 kW. Its outer diameter, tube with a quartz sheath was 120 mm. This UV lamp produces a flux of 545 W in the wavelength range from 248 to 4.00 mm. In 1 hour, a 33 m gas mixture of SOj-Oj with a molar composition of 2.2: 1, as described, is introduced through a gassing unit at a preliminary pressure of 1.1 g. bar to the reactor. This device is fixed in the lower base of the reactor exactly under the UV lamp, and has the dimensions: a gas outlet has an internal diameter of 7 mm, symmetrically located four suction holes of the opening have an external diameter of 10 mm, respectively, the internal diameter of the mixing tank is 35 mm Novka has a height of only 110 mm and. mixing tank from the outlet ha, for has a height of 50 mm. 76 equivalents of alkanesulphonic acid are obtained in 1 hour. The mono- to disulfonic acid molar ratio was about 9: 1. If working with the same reactor and under the same conditions as. indicated, but with a shower with holes with a diameter of 180 t used so far with sulfo-oxidation, which on its upper surface has holes with a light diameter of about 0.8-1.5 mm and injected into the reactor through this shower with holes 75 gas mixture with a molar composition of 2.2: 1, then for 52 hours, only 52 equivalents of alkanesulfonic acid are obtained.
    权利要求:
    Claims (1)
    [1]
    GAS-LIQUID INJECTOR. FOR PHOTOCHEMICAL REACTORS, comprising a cylindrical body with a mixing chamber and round holes made therein and a supply pipe connected to the body along its axis, characterized in that, in order to intensify the process of mixing gas and liquid, it is equipped with a conical element placed between the housing and the inlet pipe, and round holes are made with a cross section equal to 0.25-2.0 of the diameter of the inlet pipe, and are located on a conical element, while the angle between the holes and the inlet their pipe is 30-90 °, and the ratio of the height of the mixing chamber to its diameter is 1: 1-3-: 1. §>
    类似技术:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1164448A|1965-11-12|1969-09-17|Ernest Horace Priest|Device and Method for Mixing Fluids|
    US3658671A|1968-09-20|1972-04-25|Lion Fat Oil Co Ltd|Sulfoxidation of paraffin|
    DE2300273C3|1972-01-07|1982-05-06|Toray Industries, Inc., Tokyo|Device for wastewater treatment|
    US3829070A|1972-10-13|1974-08-13|Crown Zellerbach Corp|Gasification system|
    FR2293968B1|1974-12-13|1978-12-22|Cem Comp Electro Mec|US4964590A|1981-11-11|1990-10-23|Shimano Industrial Company Limited|Fishing reel|
    JPH0316087B2|1983-04-13|1991-03-04|Daiwa Seiko Co|
    JPS6033875U|1983-08-16|1985-03-08|
    JPH0350685Y2|1983-08-18|1991-10-29|
    JPH0327425Y2|1983-08-18|1991-06-13|
    JPS6055370U|1983-09-26|1985-04-18|
    JP3023853B2|1990-08-23|2000-03-21|富士通株式会社|Method for manufacturing semiconductor device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19792924427|DE2924427A1|1979-06-16|1979-06-16|USE OF A FUMING DEVICE IN PHOTOCHEMICAL GAS LIQUID REACTIONS|
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