• 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:
    A reactor comprising a solid catalyst for heterogeneous gas phase reactions and a method of using the same, wherein at least one pipe for molecular oxygen-containing gas extends into the reactor, the pipe surrounding a substantial portion of the pipe in the reactor with an inert fluid. And means for optionally also means for inhibiting flame, reaction reagent, product, catalyst or combination thereof from entering the inlet pipe from the reactor. The reactor and method are particularly suitable for fluid bed reactions.
    公开号:KR20010112112A
    申请号:KR1020010033473
    申请日:2001-06-14
    公开日:2001-12-20
    发明作者:벡커스탠리존；브리스토우티모씨크리스핀；클라케로버트윌리암；콜맨드레크알란；뉴톤데이비드；레이드이안알렌비티에；윌리암스브루스레오
    申请人:데이 수잔 자넷；비피 케미칼즈 리미티드；
    IPC主号:
    专利说明:

    Apparatus and method for the oxidation reaction {APPARATUS AND PROCESS FOR OXIDATION REACTIONS}
    [10] The present invention generally relates to a device for introducing molecular oxygen-containing gas into a reactor comprising a solid catalyst for heterogeneous gas phase reaction, and a reactor comprising a molecular catalyst for the molecular oxygen-containing gas for heterogeneous gas phase reaction. It is about how to be introduced.
    [11] Reactors and their use in processes involving molecular oxygen-containing gases with solid catalysts for heterogeneous gas phase reactions are known.
    [12] Fluid bed reactors and their use in processes involving molecular oxygen-containing gases with solid catalysts for heterogeneous gas phase reactions are also known.
    [13] EP-A-0685449, for example, feeds ethylene and acetic acid through at least one inlet to a fluidized bed reactor, feeds oxygen-containing gas through at least one additional inlet to a fluidized bed reactor, and contacts ethylene, For preparing vinyl acetate in a fluidized bed reactor, comprising combining the oxygen-containing gas, ethylene and acetic acid together in a fluidized bed reactor and recovering the vinyl acetate from the fluidized bed reactor, while acetic acid and oxygen can react to produce vinyl acetate. The method is disclosed. According to EP-A-0685449, the oxygen can be added in pure form or as admixture with an inert gas such as nitrogen or carbon dioxide. Since oxygen and hydrocarbons are not mixed as long as they are all in the reactor, catalysts are present when they meet, and the reaction proceeds immediately to lower the oxygen partial pressure. Thus, the advantage of the oxygen-containing gas being fed to the reactor through one or more additional inlets in addition to the ethylene and acetic acid reactants is to allow a fairly high level of oxygen to be safely used without high loading of the flammable gas mixture.
    [14] EP-A-0546677 also discloses a process for the oxidation of ethane to acetic acid in a fluid bed reaction zone. In the embodiment described in EP-A-0546677, ethane is combined with a recycle stream containing water, CO, CO 2 , O 2 , ethylene and ethane, and the combined stream is fed to the fluidized bed reactor. Molecular oxygen-containing streams and steam are introduced into the fluidized bed reactor separately. The hot oxidation product exits at the top of the reactor.
    [15] WO 01/03823 issued after the priority date of the present application discloses a conduit for conducting oxygen supply, a nozzle, orifice and shroud connected to a conduit for oxygen supply passage from the conduit out of the sparger. And a conduit and also an insulator (eg, a ceramic insulator) surrounding a substantially full length shroud of the shroud. The device can be used for the production of acrylonitrile via propane ammoxidation.
    [16] The use of a fluidized bed reactor for heterogeneous gas phase reactions involving molecular oxygen-containing gases enables the use of high concentrations of oxygen in molecular oxygen-containing gases. Such high concentrations of oxygen can present safety risks (eg where the feed pipe breaks, especially in the reactor).
    [17] The need for a device for the safe introduction of molecular oxygen-containing gas into a reactor comprising a catalyst for heterogeneous gas phase reaction is not limited to a fluidized bed reactor, but also when such molecular oxygen-containing gas is also introduced into a fixed bed reactor. . Therefore, there is a need for an apparatus for the safe introduction of molecular oxygen-containing gas into a reactor comprising a solid catalyst for heterogeneous gas phase reactions.
    [1] 1 is a schematic cross-sectional view of a fluidized bed reactor according to the present invention.
    [2] Figure 2 shows in schematic form a cross-sectional view of three designs of inlet pipes according to the invention.
    [3] 1: reactor 8: outlet for product
    [4] 2: catalytic fluidized bed 10: inlet for molecular oxygen-containing gas
    [5] 3: Outer pipe for inert gas supply 11: End box
    [6] 4: grid 12: molecular oxygen-containing gas supply
    [7] 5: cooling coil 14: inert gas supply
    [8] 6: inlet for fluidizing gas 15: pressure change detection means
    [9] 7: Inlets 20 and 21 for the reactants: orifice plate
    [18] According to the invention, at least one inlet pipe for molecular oxygen-containing gas, wherein the inlet pipe has means for enclosing a substantial part of the pipe with an inert fluid in the reactor, is a heterogeneous gas phase reaction extending into the reactor. A reactor is provided for containing a solid catalyst for the reaction.
    [19] According to the invention, there is also provided a method in which molecular oxygen-containing gas is introduced into a reactor comprising a solid catalyst for heterogeneous gas phase reaction, wherein the molecular oxygen-containing gas is passed through the one or more inlet pipes extending into the reactor. The inlet pipe has means for enclosing a substantial part of the pipe in the reactor with an inert fluid.
    [20] In a preferred embodiment of the invention, the inlet pipe further has means for inhibiting the entry of flames, reaction reagents, products, catalysts or combinations thereof from the reactor into the inlet pipe.
    [21] The invention has means for enclosing a substantial portion of the pipe with an inert fluid in the reactor and also optionally means for inhibiting flame, reaction reagents, products, catalysts or combinations thereof from entering the inlet pipe, One or more inlet pipes for molecular oxygen-containing gas provide a solution to this need.
    [22] Inert means that the inert fluid is substantially resistant to reaction with molecular oxygen-containing gases and / or other reactants in the reactor. Typically, at least 85% of the inlet pipe in the reactor is surrounded by means for surrounding the pipe with an inert fluid.
    [23] The inert fluid surrounding the substantial portion of the one or more inlet pipes in the reactor may comprise an inert gas, for example selected from the group consisting of nitrogen, carbon dioxide, helium, argon, neon, krypton and mixtures thereof. If a small amount of oxygen does not present any danger, it may also be present in the inert fluid.
    [24] Means for enclosing a substantial portion of the inlet pipe with inert fluid in the reactor may include an outer pipe surrounding the substantial portion of one or more inlet pipes for molecular oxygen-containing gas in the reactor and provided with a supply of inert fluid. The outer pipe can also have the advantage of providing structural support to the inlet pipe, so that the inlet pipe can be smaller than otherwise, with a reduced loading of molecular oxygen-containing gas. This enhances safety. An additional advantage is that the outer pipe can provide thermal insulation to the molecular-oxygen containing inlet pipe, reducing the potential for the reaction reagent to condense on the inlet pipe in the reactor. The outer pipe may be concentric with the inlet pipe, or in any form suitable for surrounding a substantial portion of one or more inlet pipes. Preferably, the inlet pipe extends into the reactor by a very short length, over means for enclosing the inlet pipe with an inert fluid, for example just by sufficient to achieve a suitable weld joint.
    [25] Means may be provided for enabling different expansion of the inlet pipe and the means for enclosing the pipe with an inert fluid. Such different expansion means may comprise a pig tail and / or a bend in the inlet pipe.
    [26] Preferably, the pressure of the inert fluid surrounding the portion of the inlet pipe in the reactor is different from the pressure of the molecular oxygen-containing gas in the inlet pipe. In this case, if the inlet pipe breaks and / or leaks, it can be investigated by detecting the flow of gas from or into the inert fluid surrounding the inlet pipe. Thus, if the inert fluid is at a higher pressure than the molecular oxygen-containing gas, in case of breakdown or leakage of the inlet pipe, the pressure drop of the inert fluid is detected and / or supplied from a source in which the inert fluid is restricted or sealed. If present), for example the presence of an inert fluid in the gas effluent of the reactor is detected. Such higher pressures also reduce the likelihood that the oxygen-containing gas will flow out of the supply of inert gas (which has a high load and therefore risks). In addition, the use of an inert fluid at a pressure higher than the pressure of the oxygen-containing gas means that in the event of a pipe breakage, the outflow of the inert fluid dilutes the oxygen-containing gas and enhances safety. Conversely, if the inert fluid is at a lower pressure than the molecular oxygen-containing gas, breakage or leakage of the inlet pipe may result in pressure rise of the inert fluid (if the inert fluid is supplied from a sealed source) and / or in the inert fluid surrounding the inlet pipe. Detection by molecular oxygen-containing gas. The inert fluid surrounding the inlet pipe can be sealed so that breakage or leakage of the inlet pipe can be detected by the pressure change of the inert fluid. Alternatively, it is sufficient to compensate for minor leaks, but insufficient in the case of major failures, a limited supply of inert fluid can be provided, which can be detected by a pressure drop in the inert fluid.
    [27] Thus, the reactor comprises (a) means for detecting a change in pressure of the inert fluid surrounding the inlet pipe, (b) means for detecting the presence of an inert fluid in the gas effluent from the reactor, and (c ) May further comprise one or more means for detecting molecular oxygen-containing gas in the inert fluid surrounding the inlet pipe. One or more such detector means may be used in the event of a dangerous situation-for example, a certain number of inlet nozzles are blocked and / or the loss of inert fluid surrounding the inlet pipes-in means for automatically shutting off the supply of oxygen-containing gas. It can be operatively connected.
    [28] Suitably, the pressure of the molecular oxygen-containing gas in the inlet pipe is in the range of 100 kPa to 10 MPa. Suitably, the pressure difference between the inert fluid and the molecular oxygen-containing gas substantially surrounding the inlet pipe is in the range of 1 kPa to 10 MPa. Preferably, the inert fluid is at a pressure greater than the pressure of the molecular oxygen-containing gas.
    [29] Means for inhibiting flame, reaction reagent, product, catalyst or combination thereof from entering the inlet pipe from the reactor may comprise supplying molecular oxygen-containing gas of the inlet pipe at a pressure greater than the pressure in the reactor. This is to prevent backflow that can cause an explosion. The pressure of the gas in the inlet pipe is sufficiently high to prevent entry in the event of explosion of oxygen-containing gas bubbles in the reactor adjacent to the inlet pipe.
    [30] Means for inhibiting flame, reaction reagents, products, catalysts or combinations thereof from entering the inlet pipe from the reactor include, for example, installing restricting means comprising at least one orifice at the outlet of the inlet pipe in the reactor. can do. Such limiting means can reduce or prevent backflow of flames, reaction reagents, products, and catalysts, especially when used in fluidized bed reactors. The limiting means may provide a suitable back pressure to inhibit entry, but provide a gas outflow rate that does not harm the catalyst. Said limiting means, such as one or more orifices, are preferably located at a sufficient distance from the outlet of the inlet pipe in the reactor to provide a constant flow. On the other hand, said limiting means, such as one or more orifices, are preferably located close enough to the outlet of the inlet pipe in the reactor to avoid potential explosions. As a suitable intermediate, said limiting means, such as one or more orifices, are preferably located by 4 to 5 pipe diameters at the end of the inlet pipe. Said limiting means, such as one or more orifices, are preferably located in the region of the inlet pipe surrounded by means for surrounding the inlet pipe with an inert fluid. Thus, for example, the pressure drop of the inert fluid surrounding the inlet pipe can be used to detect the combustion behind the inlet pipe to the limiting means.
    [31] Two or more inlet pipes are provided in the reactor of the present invention. Preferably, they should be located across the cross section of the reactor for an even distribution of the oxygen-containing gas. The inlets should be located far enough apart so that no flame propagation occurs between them. Preferably, the distance between the inlets significantly exceeds the potential flame length. Potential flame length is determined by factors such as inlet pipe diameter and gas inlet velocity. In order for the molecular oxygen-containing gas to be dispersed and mixed in the inlet region, the inlet location must be determined and the inlet pressure and velocity selected. The inlet should be located not too close to the reactor wall, for example to avoid poor gas dispersion and for safety in some cases, such as shock waves following an explosion. The inlet should be located so that the molecular oxygen-containing gas does not directly invade the surface or other structures in the reactor, for example other reactant inlets.
    [32] The molecular oxygen-containing gas for the inlet pipe can be provided from a common source, such as a typical end box, which has a low loading and optionally provides a safety purge during shutdown. Molecular oxygen-containing gases and other gases may also be introduced into the reactor by other inlets, not in accordance with the present invention, for example as components in the recycle gas and / or in the mixed feed gas. An advantage of the present invention is that it provides a safe means of introducing molecular oxygen-containing gases of high oxygen concentration.
    [33] Suitable molecular oxygen-containing gases for use in the present invention are air, oxygen-rich air and oxygen gas containing small amounts of impurities such as nitrogen, carbon dioxide, argon and the like. The concentration of impurities is preferably 0.4% by volume or less. The concentration of oxygen in the molecular oxygen-containing gas is suitably in the range above 20% by volume, preferably in the range from 30 to 100% by volume.
    [34] The inlet pipe is adapted to be connected for use in the supply of molecular oxygen-containing gas. The supply of molecular oxygen-containing gas may be provided through one or more flow restriction means, for example one or more orifices, which restrict the flow of molecular oxygen-containing gas to the inlet pipe. This has the advantage of restricting the flow if the inlet pipe in the reactor is significantly damaged and / or other inlets are blocked.
    [35] In a fluidized bed reactor, one or more inlet pipes are preferably positioned such that molecular oxygen-containing gas is introduced directly into the fluidized catalyst bed rather than below the fluidized catalyst bed. Preferably the inlet is directed down in the bed, which has the advantage of reducing the entry of solids when the bed is not operable.
    [36] Preferably, the reactor is a fluidized bed reactor. Fluidized bed reactors have the advantage of introducing molecular oxygen-containing gases separately from other reactants. An advantage of the present invention is that it provides enhanced safety when molecular oxygen-containing gas is introduced directly into the fluidized bed catalyst of the fluidized bed reactor.
    [37] Processes suitable for use in the present invention, in particular fluidized bed processes, include (a) acetoxylation of olefins, for example the reaction of vinyl acetate production of ethylene, acetic acid and oxygen, (b) oxidation of ethylene to acetic acid and / or ethane Oxidation to ethylene and / or acetic acid, (c) ammoxidation of propylene, propane or mixtures thereof to acrylonitrile, and (d) oxidation to maleic anhydride of class C4.
    [38] The invention will be described with reference to examples and figures, in which Fig. 1 shows in schematic form a cross-sectional view of a fluidized bed reactor according to the invention, and Fig. 2 shows schematic cross-sectional views of three designs of an inlet pipe according to the invention. It is shown in the form.
    [39] Referring to Figure 1, a reactor 1 for fluidized bed reactions, such as acetoxylation of ethylene to vinyl acetate, is used for fluidized bed catalysts such as palladium / gold catalysts supported on silica supports supported on suitable grids 4 in use. It contains 2). Reactor 1 is provided with at least one inlet 10 for molecular oxygen-containing gas. The fluidized bed reactor 1 is also provided with a supply and cooling coil 5 of fluidizing gas comprising recycle gas, ethylene reactant and optionally oxygen reactant via inlet 6. A supply of acetic acid reactant is also provided through the inlet 7. The cooling coil 5 is provided with a supply of hot fluid and can be used to heat the reactor at the start of the operation.
    [40] One end of each inlet pipe 10 is connected to a common low load end box 11, which in turn is connected to a supply 12 of molecular oxygen-containing gas and optionally to a shutdown safety purge (not shown). Each inlet pipe extends into the reactor 1, in which a substantial part of the inlet pipe is surrounded by an outer pipe 3 connected by a supply 14 of inert gas such as nitrogen. In use, the pressure of the molecular oxygen-containing gas in the inlet pipe 10 is greater than the pressure in the reactor 1, and the pressure of the inert gas in the outer pipe 3 is the pressure of the molecular oxygen-containing gas in the inlet pipe 10. Greater than pressure The supply of inert gas is provided with means 15 for detecting a change in pressure when the inlet pipe 10 leaks or breaks.
    [41] FIG. 2 shows a schematic cross sectional view of three designs of the inlet pipe according to the invention as shown in FIG. 1. A substantial part of each inlet pipe 10 in the reactor 1 is surrounded by an outer pipe 3 connected to a supply of inert gas such as nitrogen. Each inlet pipe 10 includes an orifice plate 20 to limit the supply of molecular oxygen-containing gas and an orifice plate near the outlet of the pipe to reduce or prevent ingress of flames, reaction reagents, products, and fluidized bed catalysts. 21 is provided. Suitably, the orifice plate has one or more orifices, for example three orifices at the triangular point, and provides sufficient back pressure to inhibit the entry of flame, reaction reagents, products and fluidized bed catalysts, but not to excessive friction of the fluidized bed catalysts. Does not provide an outflow linear velocity of gas. In the first design (FIG. 2A), the inlet pipe 10 extends concentrically from the outer pipe 3 by only a short distance. In the second design (FIG. 2B), the inlet pipe 10 extends radially from the outer pipe 3 by only a short distance. One or more inlet pipes may be surrounded by a general outer pipe as shown in FIG. 2C.
    [42] The apparatus of FIGS. 1 and 2 can be used in a process involving the use of molecular oxygen-containing gases, such as acetoxylation of ethylene to produce vinyl acetate. In use, the ethylene reactant and recycle gas pass through inlet 6 to fluidize catalyst bed 2 in reactor 1. Acetic acid reactant (preferably liquid) is introduced into the fluidized bed via inlet (7). Molecular oxygen-containing gas is introduced into the fluidized bed catalyst through one or more inlet pipes 10. The heat of reaction is at least partially removed by the cooling coil 5 to which the cooling water is supplied. The gaseous reaction product is removed from the outlet 8.
    [43] An inert gas such as nitrogen is supplied to the outer pipe 3 surrounding a substantial portion of the inlet pipe in the reactor 1 at a pressure greater than the pressure of the molecular oxygen-containing gas in the inlet pipe 10. In the case of breakage or leakage of the inlet pipe, this can be detected by the pressure change by the detector 15, and a suitable operating action can be taken.
    [44] Similar devices involve other reactions involving the use of molecular oxygen-containing gases (eg, oxidation of ethylene to acetic acid and / or oxidation of ethane to ethylene and / or acetic acid, acryl of propane, propylene or mixtures thereof). Ammoxidation for ronitrile production and oxidation of C4 to maleic anhydride).
    [45] The present invention is a device for the safe introduction of molecular oxygen-containing gas into a reactor comprising a solid catalyst for heterogeneous gas phase reactions, in particular suitable for fluid bed reactions.
    权利要求:
    Claims (46)
    [1" claim-type="Currently amended] A reactor comprising a solid catalyst for heterogeneous gas phase reaction, wherein at least one inlet pipe for a molecular oxygen-containing gas extends into the reactor, the inlet pipe being means for enclosing a substantial portion of the pipe in the reactor with an inert gas. Reactor characterized by having a.
    [2" claim-type="Currently amended] The reactor of Claim 1 wherein at least 85% of said pipes in said reactor are surrounded by said enclosing means.
    [3" claim-type="Currently amended] The reactor of claim 1 wherein the inert fluid comprises an inert gas.
    [4" claim-type="Currently amended] 4. The reactor of Claim 3 wherein said inert gas is selected from the group consisting of nitrogen, carbon dioxide, helium, argon, neon, krypton, and mixtures thereof.
    [5" claim-type="Currently amended] The method of claim 1 wherein the means for enclosing a substantial portion of the inlet pipe in the reactor with an inert fluid is such that an inert fluid is supplied surrounding the substantial portion of the one or more inlet pipes for molecular oxygen-containing gas in the reactor. Reactor comprising an outer pipe.
    [6" claim-type="Currently amended] 6. The reactor according to claim 5, further comprising means for enabling different expansion of said inlet pipe and said means surrounding said pipe with an inert fluid.
    [7" claim-type="Currently amended] The reactor of claim 1, further comprising means for detecting a change in pressure of the inert fluid surrounding the inlet pipe.
    [8" claim-type="Currently amended] The reactor of claim 1, further comprising means for detecting the presence of an inert fluid in the gas effluent from said reactor.
    [9" claim-type="Currently amended] The reactor of claim 1, further comprising means for detecting molecular oxygen-containing gas in the inert fluid surrounding the inlet pipe.
    [10" claim-type="Currently amended] The reactor of Claim 1, wherein said inlet pipe further has means for inhibiting flame, reaction reagents, products, catalysts and combinations thereof from entering the inlet pipe from the reactor.
    [11" claim-type="Currently amended] 11. The reactor according to claim 10, wherein said entry inhibiting means comprises means for providing molecular oxygen-containing gas in said inlet pipe at a pressure higher than the pressure in said reactor.
    [12" claim-type="Currently amended] 11. The reactor according to claim 10, wherein said entry inhibiting means comprises limiting means for the outlet of said inlet pipe.
    [13" claim-type="Currently amended] 13. A reactor according to claim 12, wherein said limiting means comprises at least one orifice.
    [14" claim-type="Currently amended] 13. A method according to claim 12, wherein the limiting means is located at an outlet rotor distance of the inlet pipe in the reactor to avoid a potential explosion.
    [15" claim-type="Currently amended] 13. A method according to claim 12, wherein the limiting means is located 4 to 5 pipe diameters from the end of the inlet pipe.
    [16" claim-type="Currently amended] 13. The reactor according to claim 12, wherein said limiting means is located in the region of said inlet pipe surrounded by said means for surrounding said inlet pipe with an inert fluid.
    [17" claim-type="Currently amended] The reactor of claim 1, having one or more inlet pipes.
    [18" claim-type="Currently amended] 18. The reactor of Claim 17, wherein the distance between the inlets is to significantly exceed the potential flame length.
    [19" claim-type="Currently amended] 18. The reactor of Claim 17, wherein the molecular oxygen-containing gas for the inlet pipe is provided from a general terminal box having a low loading and optionally provides a safe purge during shutdown.
    [20" claim-type="Currently amended] 2. The inlet pipe of claim 1, wherein the inlet pipe is adapted to be usable to supply a molecular oxygen-containing gas provided through one or more flow restriction means to restrict the flow of the molecular oxygen-containing gas to the inlet pipe. How to.
    [21" claim-type="Currently amended] The reactor of claim 1 wherein the reactor is a fluidized bed reactor.
    [22" claim-type="Currently amended] Acetoxylation of olefins; Vinyl acetate production of ethylene, acetic acid and oxygen; Oxidation of ethylene to acetic acid; Oxidation of ethane to ethylene and / or acetic acid; Ammoxidation of propylene, propane or mixtures thereof to acrylonitrile; And use of the reactor as claimed in claim 1 in a process selected from the group consisting of oxidation of C4 to maleic anhydride.
    [23" claim-type="Currently amended] A method in which molecular oxygen-containing gas is introduced into a reactor comprising a solid catalyst for heterogeneous gas phase reaction, wherein the molecular oxygen-containing gas is introduced into the reactor through one or more inlet pipes extending into the reactor and the inlet A pipe having means for enclosing a substantial part of said pipe in said reactor with an inert fluid.
    [24" claim-type="Currently amended] 24. The method of claim 23, wherein at least 85% of the pipes in the reactor are surrounded by the inert fluid.
    [25" claim-type="Currently amended] The method of claim 23, wherein the inert fluid comprises an inert gas.
    [26" claim-type="Currently amended] 27. The method of claim 25, wherein the inert gas is selected from the group consisting of nitrogen, carbon dioxide, helium, argon, neon, krypton, and mixtures thereof.
    [27" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 5.
    [28" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 6.
    [29" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 7.
    [30" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 8.
    [31" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 9.
    [32" claim-type="Currently amended] 24. The method of claim 23, wherein the pressure difference between the inert fluid surrounding the inlet pipe and the molecular oxygen-containing gas ranges from 1 kPa to 10 MPa.
    [33" claim-type="Currently amended] 33. The method of claim 32, wherein the inert fluid is at a pressure greater than the pressure of the molecular oxygen-containing gas.
    [34" claim-type="Currently amended] 24. The method of claim 23, wherein said reactor comprises the reactor as claimed in claim 10.
    [35" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 11.
    [36" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 12.
    [37" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 13.
    [38" claim-type="Currently amended] The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 14.
    [39" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 15.
    [40" claim-type="Currently amended] The method of claim 23, wherein the reactor comprises the reactor as claimed in claim 16.
    [41" claim-type="Currently amended] The method of claim 23, wherein the reactor comprises the reactor of claim 17.
    [42" claim-type="Currently amended] The method of claim 23, wherein the reactor comprises the reactor of claim 18.
    [43" claim-type="Currently amended] 24. The method of claim 23, wherein the molecular oxygen-containing gas is provided from a general terminal box with a low loading and optionally a safe purge is provided during shutdown.
    [44" claim-type="Currently amended] 24. The method of claim 23, wherein the molecular oxygen-containing gas is provided through one or more flow restricting means for restricting the flow of molecular oxygen-containing gas to the inlet pipe.
    [45" claim-type="Currently amended] 24. The method of claim 23, wherein the reactor is a fluidized bed reactor.
    [46" claim-type="Currently amended] The method of claim 23, further comprising acetoxylation of olefins; Vinyl acetate production of ethylene, acetic acid and oxygen; Oxidation of ethylene to acetic acid; Oxidation of ethane to ethylene and / or acetic acid; Ammoxidation of propylene, propane or mixtures thereof to acrylonitrile; And oxidation of C4 to maleic anhydride.
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    同族专利:
    公开号 | 公开日
    EP1163953A2|2001-12-19|
    BR0102384A|2002-04-23|
    GB0014580D0|2000-08-09|
    CA2349807A1|2001-12-14|
    GC0000288A|2006-11-01|
    US20020006368A1|2002-01-17|
    JP2002058989A|2002-02-26|
    KR100836544B1|2008-06-10|
    CN100436398C|2008-11-26|
    SG100717A1|2003-12-26|
    EP1163953A3|2004-01-14|
    CN1328989A|2002-01-02|
    TW541206B|2003-07-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-06-14|Priority to GB0014580.5
    2000-06-14|Priority to GBGB0014580.5A
    2001-06-14|Application filed by 데이 수잔 자넷, 비피 케미칼즈 리미티드
    2001-12-20|Publication of KR20010112112A
    2008-06-10|Application granted
    2008-06-10|Publication of KR100836544B1
    优先权:
    申请号 | 申请日 | 专利标题
    GB0014580.5|2000-06-14|
    GBGB0014580.5A|GB0014580D0|2000-06-14|2000-06-14|Appatarus and process|
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