WO2011124007A1 - Nest-shaped honeycomb support - Google Patents

Nest-shaped honeycomb support Download PDF

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Publication number
WO2011124007A1
WO2011124007A1 PCT/CN2010/002081 CN2010002081W WO2011124007A1 WO 2011124007 A1 WO2011124007 A1 WO 2011124007A1 CN 2010002081 W CN2010002081 W CN 2010002081W WO 2011124007 A1 WO2011124007 A1 WO 2011124007A1
Authority
WO
WIPO (PCT)
Prior art keywords
nest
holes
honeycomb support
shaped honeycomb
staggered
Prior art date
Application number
PCT/CN2010/002081
Other languages
French (fr)
Chinese (zh)
Inventor
姚光纯
Original Assignee
Yao Guangchun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yao Guangchun filed Critical Yao Guangchun
Publication of WO2011124007A1 publication Critical patent/WO2011124007A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0006—Honeycomb structures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers

Definitions

  • the present invention relates to a nest honeycomb proppant for use in a fixed bed reactor.
  • BACKGROUND OF THE INVENTION It is well known that fixed bed reactors are important in industries such as refining, petrochemical, chemical, environmental, and metallurgical industries.
  • the equipment device is mainly used for realizing gas-solid phase catalytic reaction, such as ammonia synthesis tower, sulfur dioxide contact oxidizer, hydrocarbon steam reforming furnace, hydrodesulfurization reactor and the like. According to fixed bed reactor
  • the comprehensive process requirements of temperature distribution, pressure drop size, gas-liquid property, catalytic efficiency and operating cost in gas-solid phase catalytic reaction requires not only high strength and acid resistance. It has good alkalinity and requires high void ratio, large specific surface area, and uniform dispersion of cross-sectional pore distribution.
  • proppant carriers for supporting catalysts in fixed bed reactors are mainly composed of ceramic balls and porcelain rings. Although the ceramic balls have the characteristics of high strength and good acid and alkali resistance, they have the following disadvantages: First, due to the structural limitations of the ceramic balls themselves, the void ratio is low and the specific surface area is small, resulting in excessive pressure drop in the fixed bed reactor.
  • the present invention provides a nest honeycomb proppant which is not only high in strength, good in acid and alkali resistance, but also high in porosity and large in specific surface area.
  • the bird nest honeycomb proppant comprises a body, the body has a cylindrical or square shape, and the outer diameter of the body is not more than 25 mm and its inner cavity shape It is formed into a through hole having a uniform size and being vertically parallel or staggered and staggered or arranged in parallel.
  • the through hole has a triangular or square cross section, and may also be a regular polygon or other irregular shape.
  • the outer diameter of the body of not more than 25 mm means that the diameter of the body is not more than 25 mm when the body is cylindrical or the diameter of the circumscribed circle is not more than 25 mm when the body is in the shape of a square.
  • the nest honeycomb proppant is not only high in strength but also good in acid and alkali resistance.
  • the inner cavity of the nest honeycomb proppant of the present invention has a regularly arranged through hole which is closely arranged and has a uniform wall thickness, so that the specific surface area exceeds 800 m 2 /m 3 and the porosity can reach 60- 90%, is conducive to impurity filtration, adsorption, surface reaction, can adsorb catalyst dust, carbon particles and colloids in large quantities, reduce low pressure drop, increase operational flexibility, protect downstream equipment, widely used in refining, petrochemical, chemical, environmental protection and Supporting carrier for catalysts in industries such as metallurgy.
  • Figure 2 is a cross-sectional view showing the structure of the A-A of Figure 1.
  • the nest honeycomb proppant is ball milled, kneaded, stale, slurried, shaped, shaped, dried, cut and used in a certain ratio by using alumina, bauxite, kaolin, talc or feldspar. It is fired at high temperature.
  • the bird nest honeycomb proppant comprises a body 1 , and the body 1 has a cylindrical shape, and may of course have a square shape.
  • the body cavity is formed with a through hole 2 of uniform size and arranged in parallel and arranged in a vertical direction. 5% ⁇
  • the cross-section of the cross-section is a triangle, the body has a cross-sectional diameter of 20 mm, a specific surface area of 832 m 2 / m 3 , a porosity of 78.5%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A nest-shaped honeycomb support comprises a body (1) which is a square column or a cylinder in shape. The body (1) has an outer diameter of no more than 25 mm, and has through holes (2) formed in its inner cavity. Through holes (2) have uniform size and are arranged parallel to each other in up-and-down direction and staggered to each other in left-to-right direction or, alternatively, parallel to each other in left-to-right direction and staggered to each other in up-and-down direction. The cross-section of through holes (2) is in the shape of a triangle, a square, or a regular polygon. Through holes (2) are arranged orderly and have uniform wall thickness, thereby the nest-shaped honeycomb support has a specific surface area of more than 800 m2/m3 and a porosity of up to 60-90%. The nest-shaped honeycomb support can be advantageously used for supporting catalysts, as well as carrying out the impurity filtration, adsorption, and surface reaction.

Description

鸟巢状蜂窝支撑体 技术领域 本实用新型涉及一种用于固定床反应器中的鸟巢蜂窝支撑剂。 背景技术 众所周知， 固定床反应器是炼油、 石化、 化工、 环保和冶金等行业中重要 说  FIELD OF THE INVENTION The present invention relates to a nest honeycomb proppant for use in a fixed bed reactor. BACKGROUND OF THE INVENTION It is well known that fixed bed reactors are important in industries such as refining, petrochemical, chemical, environmental, and metallurgical industries.
的设备装置， 它主要用于实现气固相催化反应， 如氨合成塔、 二氧化硫接触氧 化器、 烃类蒸汽转化炉， 加氢脱硫反应器等固定床反应器。 根据固定床反应器 书 The equipment device is mainly used for realizing gas-solid phase catalytic reaction, such as ammonia synthesis tower, sulfur dioxide contact oxidizer, hydrocarbon steam reforming furnace, hydrodesulfurization reactor and the like. According to fixed bed reactor
气固相催化反应中温度分布、 压降大小、 气液性质、 催化效率和运行工作成本 等各方面的综合工艺要求， 用于支撑固定床反应器内催化剂的支撑剂不仅要求 强度高、 耐酸碱性好， 而且要求其空隙率高、 比表面积大， 横截面孔隙分布分 散均匀。 目前， 在固定床反应器中用于支撑催化剂的支撑剂载体主要由瓷球、 瓷环构成。 瓷球虽然具有强度高、 耐酸碱性好的特点， 但它们存在下述缺点： 一是由于瓷球本身结构的限制， 空隙率低、 比表面积小， 导致固定床反应器中 压降过大， 增加了液体的流动阻力， 降低了气液有效接触的频率， 从而影响固 定床反应器的工作效率； 二是瓷环虽然空隙率较高， 但本身颗粒之间或孔径过 大且分布不均匀， 使其拦截杂质能力降低， 支撑小规格催化剂有诸多限制， 影 响了气液处理效果， 缩短了固定床反应器使用周期， 增加了运行工作成本。 实用新型内容 针对上述现有技术中支撑剂存在的问题， 本实用新型提供了一种不仅强度 高， 耐酸碱性好， 而且孔隙率高、 比表面积又大的鸟巢蜂窝支撑剂。 本实用新型要解决的技术问题所采取的技术方案是： 所述鸟巢蜂窝支撑剂包 括本体， 所述本体外形呈圆柱形或方体形， 本体外径不大于 25毫米且其内腔形 成有大小均匀且呈上下平行或交错和左右交错或平行排列的通孔。 The comprehensive process requirements of temperature distribution, pressure drop size, gas-liquid property, catalytic efficiency and operating cost in gas-solid phase catalytic reaction. The proppant used to support the catalyst in the fixed bed reactor requires not only high strength and acid resistance. It has good alkalinity and requires high void ratio, large specific surface area, and uniform dispersion of cross-sectional pore distribution. Currently, proppant carriers for supporting catalysts in fixed bed reactors are mainly composed of ceramic balls and porcelain rings. Although the ceramic balls have the characteristics of high strength and good acid and alkali resistance, they have the following disadvantages: First, due to the structural limitations of the ceramic balls themselves, the void ratio is low and the specific surface area is small, resulting in excessive pressure drop in the fixed bed reactor. , increasing the flow resistance of the liquid, reducing the frequency of effective contact of the gas and liquid, thereby affecting the working efficiency of the fixed bed reactor; second, although the void ratio of the porcelain ring is high, the pores are too large and the distribution is uneven. The ability to intercept impurities is reduced, and there are many restrictions on supporting small-sized catalysts, which affects the gas-liquid treatment effect, shortens the use period of the fixed-bed reactor, and increases the operating cost. SUMMARY OF THE INVENTION In view of the above problems in the prior art proppant, the present invention provides a nest honeycomb proppant which is not only high in strength, good in acid and alkali resistance, but also high in porosity and large in specific surface area. The technical solution to be solved by the utility model is as follows: the bird nest honeycomb proppant comprises a body, the body has a cylindrical or square shape, and the outer diameter of the body is not more than 25 mm and its inner cavity shape It is formed into a through hole having a uniform size and being vertically parallel or staggered and staggered or arranged in parallel.
所述通孔横截面为三角形或方形、 也可为正多边形或其它异形。  The through hole has a triangular or square cross section, and may also be a regular polygon or other irregular shape.
所述本体外径不大于 25毫米是指本体呈圓柱形时其直径不大于 25毫米或本 体呈方体形时其外接圆直径不大于 25毫米。  The outer diameter of the body of not more than 25 mm means that the diameter of the body is not more than 25 mm when the body is cylindrical or the diameter of the circumscribed circle is not more than 25 mm when the body is in the shape of a square.
所述鸟巢蜂窝支撑剂不仅强度高、 耐酸碱性好。 同时， 本实用新型所述鸟巢 蜂窝支撑剂内腔又具有紧密有序排列、 且壁薄大小均匀的呈规则排列的通孔， 因而其比表面积超过 800m2/m3， 孔隙率可达到 60-90%, 有利于实现杂质过滤、 吸附、 表面反应， 可大量吸附催化剂粉尘、 炭颗粒及胶质， 减低压降， 增大操 作弹性， 保护下游设备， 广泛用作炼油、 石化、 化工、 环保和冶金等行业中催 化剂的支撑载体。 The nest honeycomb proppant is not only high in strength but also good in acid and alkali resistance. At the same time, the inner cavity of the nest honeycomb proppant of the present invention has a regularly arranged through hole which is closely arranged and has a uniform wall thickness, so that the specific surface area exceeds 800 m 2 /m 3 and the porosity can reach 60- 90%, is conducive to impurity filtration, adsorption, surface reaction, can adsorb catalyst dust, carbon particles and colloids in large quantities, reduce low pressure drop, increase operational flexibility, protect downstream equipment, widely used in refining, petrochemical, chemical, environmental protection and Supporting carrier for catalysts in industries such as metallurgy.
附图说明  DRAWINGS
图 1是本实用新型的俯视结构示意图，  1 is a schematic plan view of the utility model,
图 2是图 1的 A-A剖视结构示意图。  Figure 2 is a cross-sectional view showing the structure of the A-A of Figure 1.
在图中， 1、 本体 2、 通孔  In the figure, 1, the body 2, the through hole
具体实施方式  detailed description
在图 1和图 2中， 所述鸟巢蜂窝支撑剂采用氧化铝、 铝矾土、 高岭土、 滑石 或长石按一定比例经球磨、 捏合、 陈腐、 炼泥、 成型、 定型、 烘干、 切割和高 温烧制而成。 所述鸟巢蜂窝支撑剂包括本体 1 , 所述本体 1外形呈圆柱形，当然 也可呈方体形， 所述本体内腔形成有大小均匀且呈上下平行和左右交错排列的 通孔 2， 当然通孔也可是上下交错和左右平行排列， 通孔横截面为三角形， 所述 本体横截面直径为 20毫米、 比表面积为 832m2/m3、 孔隙率为 78. 5%。 In Fig. 1 and Fig. 2, the nest honeycomb proppant is ball milled, kneaded, stale, slurried, shaped, shaped, dried, cut and used in a certain ratio by using alumina, bauxite, kaolin, talc or feldspar. It is fired at high temperature. The bird nest honeycomb proppant comprises a body 1 , and the body 1 has a cylindrical shape, and may of course have a square shape. The body cavity is formed with a through hole 2 of uniform size and arranged in parallel and arranged in a vertical direction. 5%。 The cross-section of the cross-section is a triangle, the body has a cross-sectional diameter of 20 mm, a specific surface area of 832 m 2 / m 3 , a porosity of 78.5%.

Claims

权 利 要 求 书 Claim
1、 鸟巢蜂窝支撑剂， 它包括本体， 所述本体外形呈方体形或圆柱形， 其特 征是： 所述本体（ 1 )外径不大于 25毫米且其内腔形成有大小均匀且呈上下平 行或交错和左右交错或平行排列的通孔（2 )。 1. A nest honeycomb honeycomb proppant comprising a body, the body having a square or cylindrical shape, wherein: the outer diameter of the body (1) is not more than 25 mm and the inner cavity is formed with a uniform size and parallel Or through holes (2) staggered and staggered or arranged in parallel.
2、 根据权利要求 1所述的鸟巢蜂窝支撑剂， 其特征是： 所述通孔（2 )横截 面为三角形或方形。  2. The nest honeycomb proppant according to claim 1, wherein the through hole (2) has a triangular or square cross section.
PCT/CN2010/002081 2010-04-08 2010-12-17 Nest-shaped honeycomb support WO2011124007A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201020155305.7 2010-04-08
CN2010201553057U CN201684614U (en) 2010-04-08 2010-04-08 Bird nest and honeycomb propping agent

Publications (1)

Publication Number Publication Date
WO2011124007A1 true WO2011124007A1 (en) 2011-10-13

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102091660A (en) * 2010-11-10 2011-06-15 姚光纯 Bird-nest catalyst carrier

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1228152A (en) * 1996-06-10 1999-09-08 卡塔鲁逖克公司 Support structure for catalyst
US20050186389A1 (en) * 2004-02-19 2005-08-25 Ngk Insulators, Ltd. Honeycomb structure
CN201427932Y (en) * 2009-06-26 2010-03-24 姚光纯 Bird's nest honeycomb ceramic body
CN101823006A (en) * 2010-04-08 2010-09-08 姚光纯 Honeycomb nest proppant and process of applying same to fixed bed reactor
CN201648251U (en) * 2010-02-25 2010-11-24 姚光纯 Ball nest honeycomb ceramic body
CN201684616U (en) * 2010-05-07 2010-12-29 姚光纯 Nest catalyst
CN201684611U (en) * 2010-05-07 2010-12-29 姚光纯 Honeycomb ceramic liquid distributor
CN101940955A (en) * 2010-05-07 2011-01-12 姚光纯 Film-coated catalyst carrier

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1228152A (en) * 1996-06-10 1999-09-08 卡塔鲁逖克公司 Support structure for catalyst
US20050186389A1 (en) * 2004-02-19 2005-08-25 Ngk Insulators, Ltd. Honeycomb structure
CN201427932Y (en) * 2009-06-26 2010-03-24 姚光纯 Bird's nest honeycomb ceramic body
CN201648251U (en) * 2010-02-25 2010-11-24 姚光纯 Ball nest honeycomb ceramic body
CN101823006A (en) * 2010-04-08 2010-09-08 姚光纯 Honeycomb nest proppant and process of applying same to fixed bed reactor
CN201684616U (en) * 2010-05-07 2010-12-29 姚光纯 Nest catalyst
CN201684611U (en) * 2010-05-07 2010-12-29 姚光纯 Honeycomb ceramic liquid distributor
CN101940955A (en) * 2010-05-07 2011-01-12 姚光纯 Film-coated catalyst carrier

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