CN204429253U - Ammonoxidizing fluid bed twin-stage distribution apparatus - Google Patents
Ammonoxidizing fluid bed twin-stage distribution apparatus Download PDFInfo
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- CN204429253U CN204429253U CN201420862936.0U CN201420862936U CN204429253U CN 204429253 U CN204429253 U CN 204429253U CN 201420862936 U CN201420862936 U CN 201420862936U CN 204429253 U CN204429253 U CN 204429253U
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- fluidized bed
- distribution plate
- ammonia
- xylene
- reduced
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- 238000009826 distribution Methods 0.000 title claims abstract description 32
- 239000012530 fluid Substances 0.000 title claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 30
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- 230000008016 vaporization Effects 0.000 claims abstract description 7
- 238000009834 vaporization Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000008676 import Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- LAQPNDIUHRHNCV-UHFFFAOYSA-N isophthalonitrile Chemical compound N#CC1=CC=CC(C#N)=C1 LAQPNDIUHRHNCV-UHFFFAOYSA-N 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 4
- 238000002309 gasification Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 239000011364 vaporized material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本实用新型涉及一种氨氧化流化床双级分布装置，它包括流化床反应器本体（1），所述流化床反应器本体（1）底部设置有氨气和间二甲苯汽化料进口（3）、空气进口（4），所述氨气和间二甲苯汽化料进口（3）以及空气进口（4）上方设置有第一分布板（2），其特征在于：所述第一分布板（2）上方3.6±0.5m处设置有第二分布板（5）。本实用新型氨氧化流化床双级分布装置， 可以在现有生产过程基础上进行设备改进，减少间苯二甲腈单独精制过程，优化生产工艺，降低生产成本。提高了产品的收率，降低了杂质含量，最终生产出优质的间苯二甲腈。
The utility model relates to a two-stage distribution device for an ammonia oxidation fluidized bed, which comprises a fluidized bed reactor body (1), and the bottom of the fluidized bed reactor body (1) is provided with ammonia gas and m-xylene vaporization material Inlet (3), air inlet (4), above the ammonia and m-xylene gasification material inlet (3) and the air inlet (4) are provided with a first distribution plate (2), characterized in that: the first A second distribution plate (5) is arranged at 3.6±0.5m above the distribution plate (2). The utility model ammonia oxidation fluidized bed two-stage distribution device, Equipment improvement can be carried out on the basis of the existing production process, the separate refining process of isophthalonitrile can be reduced, the production process can be optimized, and the production cost can be reduced. The yield of the product is improved, the impurity content is reduced, and high-quality isophthalonitrile is finally produced.
Description
技术领域 technical field
本实用新型涉及一种氨氧化流化床双级分布装置。 The utility model relates to a two-stage distribution device for an ammonia oxidation fluidized bed.
背景技术 Background technique
流化床反应器是一种利用气体或液体通过颗粒状固体而使固体颗粒处于悬浮运动状态，并进行气固相反应过程或液固相反应过程的反应器。间苯二甲腈生产过程中主要原料是氨气和间二甲苯，其生产工艺是将间二甲苯和氨气在流化床中发生氨氧化反应生成间苯二甲腈。 A fluidized bed reactor is a reactor that uses gas or liquid to pass through granular solids to make solid particles in a state of suspension and movement, and to perform a gas-solid phase reaction process or a liquid-solid phase reaction process. The main raw materials in the production process of isophthalonitrile are ammonia and m-xylene, and the production process is to ammoxidize m-xylene and ammonia in a fluidized bed to generate isophthalonitrile.
原生产过程如图1所示，氨气和间二甲苯汽化后经汽化器进入流化床，在高温和催化剂的作用下在分布板上方进行氨氧化反应，生成物经油冷器进入薄壁收料器进行冷却收料。分布板具有均匀分布气流的作用，同时其压降要小。原生产过程存在这样的问题：分布板对整个流化床的直接作用范围是有限。反应时，催化剂悬浮均匀分布区域约在分布板上3.6m左右，3.6m以上区域稀疏分散分布，这种情况原材料未充分反应，导致了生产的产品质量不佳，收率还低，同时还增加了产品精制过程。 The original production process is shown in Figure 1. After vaporization, ammonia and m-xylene enter the fluidized bed through the vaporizer. Under the action of high temperature and catalyst, the ammoxidation reaction is carried out above the distribution plate, and the product enters the thin-walled collector through the oil cooler. The feeder is used for cooling and receiving. The distribution plate has the function of evenly distributing the airflow, and at the same time, its pressure drop should be small. There is such a problem in the original production process: the direct effect range of the distribution plate on the whole fluidized bed is limited. During the reaction, the uniform distribution area of the catalyst suspension is about 3.6m on the distribution plate, and the area above 3.6m is sparsely distributed. In this case, the raw materials are not fully reacted, resulting in poor product quality and low yield. At the same time, it also increases product refining process.
发明内容 Contents of the invention
本实用新型的目的在于克服上述不足，提供一种可提高原料的利用率、能进一步生产高含量高收率的间苯二甲腈的氨氧化流化床双级分布装置。 The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of ammoxidation fluidized bed two-stage distributing device that can improve the utilization ratio of raw material, can further produce the isophthalonitrile of high content and high yield.
本实用新型的目的是这样实现的：一种氨氧化流化床双级分布装置，它包括流化床反应器本体，所述流化床反应器本体底部设置有氨气和间二甲苯汽化料进口、空气进口，所述氨气和间二甲苯汽化料进口以及空气进口上方设置有第一分布板，所述第一分布板上方3.6±0.5m处设置有第二分布板。 The purpose of this utility model is achieved in this way: a two-stage distribution device for ammoxidation fluidized bed, which includes a fluidized bed reactor body, the bottom of the fluidized bed reactor body is provided with ammonia gas and m-xylene vaporization material The inlet, the air inlet, the ammonia and m-xylene vaporized material inlet and the air inlet are provided with a first distribution plate, and a second distribution plate is provided at 3.6±0.5m above the first distribution plate.
与现有技术相比，本实用新型的有益效果是： Compared with the prior art, the beneficial effects of the utility model are:
本实用新型氨氧化流化床双级分布装置， 可以在现有生产过程基础上进行设备改进，减少间苯二甲腈单独精制过程，优化生产工艺，降低生产成本。提高了产品的收率，降低了杂质含量，最终生产出优质的间苯二甲腈。 The utility model ammonia oxidation fluidized bed two-stage distribution device, Equipment improvement can be carried out on the basis of the existing production process, the separate refining process of isophthalonitrile can be reduced, the production process can be optimized, and the production cost can be reduced. The yield of the product is improved, the impurity content is reduced, and high-quality isophthalonitrile is finally produced.
附图说明 Description of drawings
图1为现有流化床反应器的结构示意图。 Figure 1 is a schematic structural view of an existing fluidized bed reactor.
图2为本实用新型氨氧化流化床双级分布装置的结构示意图。 Fig. 2 is a structural schematic diagram of ammoxidation fluidized bed two-stage distribution device of the present invention.
其中：流化床反应器本体1、第一分布板2、氨气和间二甲苯汽化料进口3、空气进口4、第二分布板5。 Among them: fluidized bed reactor body 1, first distribution plate 2, ammonia gas and m-xylene vaporized material inlet 3, air inlet 4, second distribution plate 5.
具体实施方式 Detailed ways
参见图2，本实用新型涉及的氨氧化流化床双级分布装置，它包括流化床反应器本体1，所述流化床反应器本体1底部设置有氨气和间二甲苯汽化料进口3、空气进口4，所述氨气和间二甲苯汽化料进口3以及空气进口4上方设置有第一分布板2，所述第一分布板2上方3.6±0.5m处设置有第二分布板5。 Referring to Fig. 2, the ammoxidation fluidized bed two-stage distribution device related to the utility model includes a fluidized bed reactor body 1, and the bottom of the fluidized bed reactor body 1 is provided with inlets for ammonia gas and m-xylene vaporization material 3. Air inlet 4, a first distribution plate 2 is set above the ammonia and m-xylene vaporization material inlet 3 and air inlet 4, and a second distribution plate is set at 3.6±0.5m above the first distribution plate 2 5.
在第一分布板2上方3.6m左右处加了一块第二分布板5，汽化后的氨气和间二甲苯经过第一分布板2和第二分布板5，在第二分布板5上1m作用空间催化剂仍能均匀悬浮，因此这样的改进增加了催化剂均匀分布的空间，增加了停留时间，使得各原料相互能充分反应，原料收率由原先的80%提高到85%，生产出的目标产品杂质含量低，主含量提高。 A second distribution plate 5 is added at about 3.6m above the first distribution plate 2, and the vaporized ammonia and m-xylene pass through the first distribution plate 2 and the second distribution plate 5, and 1m above the second distribution plate 5 The catalyst can still be uniformly suspended in the action space, so this improvement increases the space for the uniform distribution of the catalyst and increases the residence time, so that the raw materials can fully react with each other, and the raw material yield is increased from 80% to 85%. The impurity content of the product is low, and the main content is increased.
本实用新型的优点在于： The utility model has the advantages of:
在现有生产过程基础上进行设备改进，减少间苯二甲腈单独精制过程，优化生产工艺，降低生产成本。 On the basis of the existing production process, the equipment is improved, the separate refining process of isophthalonitrile is reduced, the production process is optimized, and the production cost is reduced.
提高了产品的收率，降低了杂质含量，最终生产出优质的间苯二甲腈。 The yield of the product is improved, the impurity content is reduced, and high-quality isophthalonitrile is finally produced.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420862936.0U CN204429253U (en) | 2014-12-31 | 2014-12-31 | Ammonoxidizing fluid bed twin-stage distribution apparatus |
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|---|---|---|---|
| CN201420862936.0U CN204429253U (en) | 2014-12-31 | 2014-12-31 | Ammonoxidizing fluid bed twin-stage distribution apparatus |
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| CN204429253U true CN204429253U (en) | 2015-07-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892839A (en) * | 2015-12-18 | 2017-06-27 | 上海泰禾国际贸易有限公司 | A kind of method of refined isophthalodinitrile |
| CN107540572A (en) * | 2016-06-28 | 2018-01-05 | 江苏新河农用化工有限公司 | It is a kind of be used between/the refined equipment of para-Phthalonitrile |
-
2014
- 2014-12-31 CN CN201420862936.0U patent/CN204429253U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892839A (en) * | 2015-12-18 | 2017-06-27 | 上海泰禾国际贸易有限公司 | A kind of method of refined isophthalodinitrile |
| CN107540572A (en) * | 2016-06-28 | 2018-01-05 | 江苏新河农用化工有限公司 | It is a kind of be used between/the refined equipment of para-Phthalonitrile |
| CN107540572B (en) * | 2016-06-28 | 2024-01-30 | 江苏新河农用化工有限公司 | Equipment for refining m/p-phthalonitrile |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20150701 |