CN109503179A - The Rui Kaige composite brick and preparation method thereof of fluid catalytic cracking bed reactor - Google Patents

The Rui Kaige composite brick and preparation method thereof of fluid catalytic cracking bed reactor Download PDF

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Publication number
CN109503179A
CN109503179A CN201811088472.1A CN201811088472A CN109503179A CN 109503179 A CN109503179 A CN 109503179A CN 201811088472 A CN201811088472 A CN 201811088472A CN 109503179 A CN109503179 A CN 109503179A
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CN
China
Prior art keywords
kaige
rui
bed reactor
catalytic cracking
fluid catalytic
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Pending
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CN201811088472.1A
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Chinese (zh)
Inventor
许宝元
王中华
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WUXI CHENGUANG REFRACTORY MATERIAL CO Ltd
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WUXI CHENGUANG REFRACTORY MATERIAL CO Ltd
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Priority to CN201811088472.1A priority Critical patent/CN109503179A/en
Publication of CN109503179A publication Critical patent/CN109503179A/en
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    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9692—Acid, alkali or halogen resistance

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Catalysts (AREA)

Abstract

The invention discloses the Rui Kaige composite bricks of fluid catalytic cracking bed reactor, including following components in percentage by weight: 79 ~ 90% 90,9 ~ 20% alumina powder of Rui Kaige, 0.5 ~ 1% organic plasticizers.Meanwhile the invention also discloses the preparation methods of above-mentioned Rui Kaige composite brick.The present invention has excellent high alkali resistance erosion performance, especially has very high stability under reducing atmosphere, has the characteristics that low degree of wetting and low thermal conductivity to molten metal；The service life and stability for effectively improving furnace lining reduce consumption and the shutdown maintenance number of furnace lining material；Compared with the similar high-purity material of bulk density, possess lower thermal conductivity, heat insulation effect is more preferable, is particularly suitable for catalytic coal gasifaction furnace, and furnace shell external skin temperatures can be effectively reduced；Production process is pollution-free.

Description

The Rui Kaige composite brick and preparation method thereof of fluid catalytic cracking bed reactor
Technical field
The invention belongs to fire resisting material fields, and in particular to the Rui Kaige composite brick of fluid catalytic cracking bed reactor.
Background technique
Catalysis gasification technique itself determines that the base metal catalysts of high level need to be added, and alkali metal may be to fire resisting Material generates erosion.In general, alkali metal mainly has chemical attack and two kinds of crystal corrosion to the corrosion of refractory material: chemistry is rotten Erosion refers to that some ingredients in furnace lining material and corrosive medium alkali etc. chemically react, newly-generated substance is easy by furnace Other media dissolution, to damage furnace lining structure；Crystal corrosion, i.e., alkaloids melting is liquid phase at high temperature, passes through furnace The gap of lining or capillary infilter inside furnace lining, and crystallization generates the huger novel substance of volume during cooling, so that Furnace lining local volume expansion finally causes the damage of furnace lining structure to generate certain internal stress.The country, China is catalyzed at present The furnace lining that gasification furnace uses is generally corundum brick or chrome corundum brick.The service life of corundum brick is shorter, generally at 1 year or so；Chromium The service life of corundum brick is longer, but due to environmental grounds, and general data has been forbidden using chromate-containing materials.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide fluid catalytic cracking bed reactor Rui Kaige composite brick.
Another object of the present invention is to provide the preparation methods of above-mentioned Rui Kaige composite brick.
Technical solution: in order to achieve the above object of the invention, the present invention is specifically achieved like this: the reaction of fluid catalytic cracking bed The Rui Kaige composite brick of device, including following components in percentage by weight: the aluminium oxide of 79 ~ 90% Rui Kaige 90,9 ~ 20% is micro- Powder, 0.5 ~ 1% organic plasticizers.
Wherein, Rui Kaige 90 is calcium hexaluminate (CaAl12O19, CA6) substance, it is CaO-Al2O3It is aoxidized in binary system The highest intermediate compound of aluminium content, density are 3.79 gcm-3, high-temperature decomposition temperature is 1875 DEG C.
Wherein, the organic plasticizers are yellow starch gum or sodium carboxymethylcellulose.
Wherein, the Rui Kaige 90 of 3 ~ 1mm accounts for the 25 ~ 40% of gross mass in the Rui Kaige 90, and the Rui Kaige Zhan of 1 ~ 0mm is total The 5 ~ 20% of quality, the Rui Kaige of 0.088 ~ 0mm account for the 10 ~ 20% of gross mass；The Rui Kaige of the 1 ~ 0mm is blocky or levels off to Bulk, and the Rui Kaige of 0.088 ~ 0mm is granular structure, the mixing when Rui Kaige of two kinds of forms being selected to be conducive to production.
Wherein, the granularity of the alumina powder is 10 ~ 0 μm.
The method for preparing the Rui Kaige composite brick of the fluid catalytic cracking bed reactor, comprising the following steps:
(1) Rui Kaige 90, alumina powder, organic plasticizers are measured by formula, the water mixing of mixture quality 3 ~ 5% is added, stirs Mix 3 ~ 5min, ageing mixture 20 ~ spare for 24 hours；
(2) mixture of step (1) is poured into mold and carries out vibration compression moulding；
(3) by adobe after molding spontaneously dry 20 ~ for 24 hours, laggard drying chamber exists in 120 ~ 150 DEG C of 24 ~ 30h of baking, most laggard kiln 1550 ~ 1600 DEG C of 6 ~ 8h of firing to obtain the final product.
The utility model has the advantages that the present invention compared with traditional technology, has the advantage that
(1) present invention has excellent high alkali resistance erosion performance, especially has very high stability under reducing atmosphere, right Molten metal has the characteristics that low degree of wetting and low thermal conductivity；
(2) present invention effectively improves the service life and stability of furnace lining, reduces consumption and the shutdown maintenance number of furnace lining material；
(3) present invention possesses lower thermal conductivity, heat insulation effect is more preferable, especially compared with the similar high-purity material of bulk density Suitable for catalytic coal gasifaction furnace, furnace shell external skin temperatures can be effectively reduced；
(4) production process of the present invention is pollution-free.
Specific embodiment
Embodiment 1:
79% 90,20% alumina powder of Rui Kaige, 1% organic plasticizers are taken by weight percentage, and mixture quality is added 3% water mixing, stirs 3min, ageing mixture 23h is spare；Mixture is poured into mold and carries out vibration compression moulding；By brick after molding Base spontaneously dries 22h, laggard drying chamber in 120 ~ 150 DEG C of baking 30h, most laggard kiln 1550 ~ 1600 DEG C of firing 8h to obtain the final product.
Embodiment 2:
90% 90,19% alumina powder of Rui Kaige, 1% organic plasticizers are taken by weight percentage, and mixture quality is added 5% water mixing, stirs 5min, ageing mixture is spare for 24 hours；Mixture is poured into mold and carries out vibration compression moulding；By brick after molding Base spontaneously dry 21h, laggard drying chamber 120 ~ 150 DEG C baking for 24 hours, most laggard kiln 1550 ~ 1600 DEG C of firing 6h to obtain the final product.
Embodiment 3:
80% 90,19.5% alumina powder of Rui Kaige, 0.5% organic plasticizers are taken by weight percentage, and mixture is added The water of quality 4% mixes, and stirs 4min, and ageing mixture 22h is spare；Mixture is poured into mold and carries out vibration compression moulding；After forming Adobe spontaneously dry for 24 hours, laggard drying chamber in 120 ~ 150 DEG C of baking 26h, most laggard kiln 1550 ~ 1600 DEG C of firing 7h to obtain the final product.
Embodiment 4:
79.5% 90,20% alumina powder of Rui Kaige, 0.5% organic plasticizers are taken by weight percentage, and mixture is added The water of quality 5% mixes, and stirs 3min, and ageing mixture 21h is spare；Mixture is poured into mold and carries out vibration compression moulding；After forming Adobe spontaneously dry 23h, laggard drying chamber in 120 ~ 150 DEG C of baking 28h, most laggard kiln 1550 ~ 1600 DEG C of firing 8h to obtain the final product.
Embodiment 5:
85% 90,14% alumina powder of Rui Kaige, 1% organic plasticizers are taken by weight percentage, and mixture quality is added 3% water mixing, stirs 5min, ageing mixture 20h is spare；Mixture is poured into mold and carries out vibration compression moulding；By brick after molding Base spontaneously dries 20h, laggard drying chamber in 120 ~ 150 DEG C of baking 27h, most laggard kiln 1550 ~ 1600 DEG C of firing 6h to obtain the final product.

Claims (5)

1. the Rui Kaige composite brick of fluid catalytic cracking bed reactor, which is characterized in that including following components in percentage by weight: 79 ~ 90% 90,9 ~ 20% alumina powder of Rui Kaige, 0.5 ~ 1% organic plasticizers.
2. the Rui Kaige composite brick of fluid catalytic cracking bed reactor according to claim 1, which is characterized in that described organic Plasticizer is yellow starch gum or sodium carboxymethylcellulose.
3. the Rui Kaige composite brick of fluid catalytic cracking bed reactor according to claim 1, which is characterized in that described auspicious triumphant The Rui Kaige 90 of 3 ~ 1mm accounts for the 25 ~ 40% of gross mass in lattice 90, and the Rui Kaige of 1 ~ 0mm accounts for the 5 ~ 20% of gross mass, 0.088 ~ 0mm Rui Kaige account for the 10 ~ 20% of gross mass.
4. the Rui Kaige composite brick of fluid catalytic cracking bed reactor according to claim 1, which is characterized in that the oxidation The granularity of aluminium micro mist is 10 ~ 0 μm.
5. the method for preparing the Rui Kaige composite brick of fluid catalytic cracking bed reactor described in claim 1, which is characterized in that including Following steps:
(1) Rui Kaige 90, alumina powder, organic plasticizers are measured by formula, the water mixing of mixture quality 3 ~ 5% is added, stirs Mix 3 ~ 5min, ageing mixture 20 ~ spare for 24 hours；
(2) mixture of step (1) is poured into mold and carries out vibration compression moulding；
(3) by adobe after molding spontaneously dry 20 ~ for 24 hours, laggard drying chamber exists in 120 ~ 150 DEG C of 24 ~ 30h of baking, most laggard kiln 1550 ~ 1600 DEG C of 6 ~ 8h of firing to obtain the final product.
CN201811088472.1A 2018-09-18 2018-09-18 The Rui Kaige composite brick and preparation method thereof of fluid catalytic cracking bed reactor Pending CN109503179A (en)

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CN201811088472.1A CN109503179A (en) 2018-09-18 2018-09-18 The Rui Kaige composite brick and preparation method thereof of fluid catalytic cracking bed reactor

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CN201811088472.1A CN109503179A (en) 2018-09-18 2018-09-18 The Rui Kaige composite brick and preparation method thereof of fluid catalytic cracking bed reactor

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074529A2 (en) * 1999-08-02 2001-02-07 Refratechnik Holding GmbH & Co. KG Refractory article, refractory composition and method for manufacturing a refractory article for metallurgical processes
CN1884201A (en) * 2006-07-11 2006-12-27 中钢集团洛阳耐火材料研究院 Permeable fireproof materials for aluminium refining and process for preparing same
CN101928153A (en) * 2010-09-01 2010-12-29 中国地质大学（北京） Calcium hexaluminate and corundum composite porous light heat insulation refractory material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074529A2 (en) * 1999-08-02 2001-02-07 Refratechnik Holding GmbH & Co. KG Refractory article, refractory composition and method for manufacturing a refractory article for metallurgical processes
CN1884201A (en) * 2006-07-11 2006-12-27 中钢集团洛阳耐火材料研究院 Permeable fireproof materials for aluminium refining and process for preparing same
CN101928153A (en) * 2010-09-01 2010-12-29 中国地质大学（北京） Calcium hexaluminate and corundum composite porous light heat insulation refractory material and preparation method thereof

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
中国耐火材料行业协会 编: "《中国耐火材料工业年鉴 2010~2014》", 31 August 2015, 冶金工业出版 *
李斌 等: "《瑞凯格90-合成致密的CA6耐火材料》", 30 June 2016, 第十五届全国耐火材料青年学术报告会论文集 *
焦友梅 等: "《节能统计 基础知识与应用》", 31 August 2016, 中国统计出版社 *
蒋明学 等: "《陈肇友耐火材料论文选》", 31 January 2011, 冶金工业出版社 *
赵俊学 等: "《冶金原理》", 30 June 2012, 冶金工业出版社 *

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Application publication date: 20190322

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