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CN1098731C - Catalyst carrier for heavy oil hydrogenation treatment and preparation thereof - Google Patents

Catalyst carrier for heavy oil hydrogenation treatment and preparation thereof Download PDF

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Publication number
CN1098731C
CN1098731C CN98121083A CN98121083A CN1098731C CN 1098731 C CN1098731 C CN 1098731C CN 98121083 A CN98121083 A CN 98121083A CN 98121083 A CN98121083 A CN 98121083A CN 1098731 C CN1098731 C CN 1098731C
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Prior art keywords
pore
preparation
carrier
acid
alumina
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Expired - Lifetime
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CN98121083A
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CN1256969A (en
Inventor
方维平
孙素华
王纲
王永林
丁莉
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Sinopec Fushun Research Institute of Petroleum and Petrochemicals
China Petrochemical Corp
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Sinopec Fushun Research Institute of Petroleum and Petrochemicals
China Petrochemical Corp
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Abstract

The present invention relates to a heavy oil hydrogenation treatment catalyst carrier and preparation thereof. In the process of the carrier preparation, after being mixed according to a certain proportion, pseudo thin diaspore and alumina are mixed and kneaded with a compound pore-expanding agent, etc. into a plastic body, and then, the required carrier is prepared by extruded moulding on an extruding machine, drying and high temperature calcination.

Description

A kind of carrier of hydrogenating catalyst for heavy oil and preparation thereof
Technical field
The present invention relates to a kind of carrier of hydrogenating catalyst for heavy oil and preparation method thereof, particularly residuum hydrogenating and metal-eliminating and hydrodesulfurization catalyst support and preparation method thereof.
Background technology
At present, industrial hydrotreating catalyst is a carrier with aluminium oxide or the aluminium oxide that contains a little auxiliary normally, is active component with VIII family and group vib metallic element.As everyone knows, the pore structure of catalyst is to the serviceability important influence of catalyst.For catalyst for hydroprocessing of heavy oil, especially residual hydrocracking catalyst system therefor, generally need have bigger aperture and pore volume, be beneficial to the interior diffusion of macromolecular reaction thing in the mink cell focus, avoid or slow down because the deposition of metal impurities and blocking catalyst duct, cause catalyst activity to descend fast, shorten the service cycle of device.Because the pore structure of catalyst depends primarily on the pore structure of carrier, so, at first to prepare the carrier that has than large pore volume and aperture.
The method for preparing large-pore alumina carrier is a lot, and wherein, adding expanding agent in forming process is one of method comparatively commonly used.This method is fairly simple, easily operation.But the adding of expanding agent although the porosity of carrier increases, makes the caking property variation between the alumina particle also, thereby, causing the pore size distribution disperse of carrier easily, bulk density descends, the mechanical strength variation.
USP4,448,896 and JP57-123820 in the catalyst introduced adopt physics expanding agent carbon black to carry out reaming, the carbon black use amount is big, causes prepared catalyst aperture distribution disperse, bad mechanical strength, the catalyst aperture is also less.
CN1 in 160,602, adopts physics and chemical enlargement agent simultaneously, prepared carrier and above-mentioned three kinds of patents relatively, its pore size distribution and mechanical strength all improve significantly, bulk density is moderate.But the mechanical strength of this catalyst is still lower, and pore size distribution is also not too concentrated.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of mechanical strength, alumina support of pore distribution concentration and preparation method thereof.This bright carrier has sends out aperture and pore volume more greatly, moderate specific surface, suitable bulk density.
Carrier involved in the present invention, pore volume is 0.80-1.30ml/g, is preferably 0.9-1.2ml/g; Specific surface is 100-200m 2/ g is preferably 150-180m 2/ g; Can several apertures be 15-20nm, be preferably 16-19nm; The aperture accounts for more than 70% of total pore volume, mechanical strength 〉=10.0N/mm, bulk density 〉=0.52g/ml at the pore volume between the 10-20nm.
Technical essential of the present invention is: boehmite and alumina powder and compound expanding agent, extrusion aid, peptizing agent, water mix pinching by a certain percentage and go out moulding, and drying and high-temperature roasting obtain carrier of the present invention.Among the present invention, use physics and chemically composited expanding agent, the two synergy can reach tangible reaming effect, also can reduce its consumption separately.Simultaneously, add appropriate amount of alumina and peptizing agent among the present invention, aluminium oxide structure is relatively stable, plays skeleton function, can increase the intensity of carrier; The intervention of peptizing agent makes cohesiveness enhancing between the alumina powder surface particles, thereby helps adjusting the pore-size distribution of catalyst, improves its mechanical strength.
Principal character of the present invention is that the preparation process of carrier of the present invention is:
(1), boehmite dry glue powder and alumina powder and physics expanding agent, chemical enlargement agent, extrusion aid, peptizing agent, water mixes according to a certain percentage and pinches, and becomes plastic.
(2), by (1) gained material extruded moulding on banded extruder.
(3), by (2) gained material under 90-200 ℃, dry 2-8 hour or air dry.
(4), by (3) gained material at 800-1100 ℃ of following roasting 1-5 hour.
Wherein the described alumina powder of step (1) is that aluminum hydroxide solid elastomer forms 300-600 ℃ of following roasting, and this aluminum hydroxide solid elastomer can be identical or different with the used boehmite of preparation process.The consumption of aluminium oxide is 5-30m% (being benchmark with aluminium oxide total content in the material, as follows).
Described physics expanding agent is the Flammable Solid Class 4.1 particle, is preferably carbon black, and its consumption is 3-10m%; The chemical enlargement agent is the compound of phosphorous, silicon or boron, is preferably boric acid, phosphoric acid or borate, phosphate, and addition is 0.1-1.5m%.
Described extrusion aid is sesbania powder, methylcellulose, starch, polyvinyl alcohol, is preferably the sesbania powder, and addition is 4.0-6.0m%.
Described peptizing agent can be organic acid such as formic acid, acetate etc., or inorganic acid such as nitric acid etc., and addition is 1.0-3.0m%.
Not only mechanical strength is good, pore distribution concentration for the carrier of the inventive method preparation, and has bigger aperture and pore volume, moderate specific surface, suitable bulk density.Be applicable to the preparation hydrogenation catalyst, particularly be applicable to especially catalyst for hydrotreatment of residual oil of preparation mink cell focus.
The specific embodiment
Further set forth feature of the present invention below by embodiment.
Embodiment 1
230g boehmite (butt 70%) and 15g alumina powder and 12.1g carbon black, 1.55g phosphoric acid, 3.6g acetate, 7.2g sesbania powder, 211g water purification are mixed and pinch, become plastic, on banded extruder, be extruded into 1.2mm bunge bedstraw herb bar then, in 120 ℃ of dryings 4 hours, 850 ℃ of roastings 2 hours, get carrier A, its character is listed in table 1.
Embodiment 2
230g boehmite dry glue powder and 28.4g alumina powder and 10.1g carbon black, 1.82g phosphoric acid, 4.0g formic acid, 7.6g starch, 220g water purification are mixed and pinch, become plastic, on banded extruder, be extruded into 1.2mm bunge bedstraw herb bar then, in 120 ℃ of dryings 4 hours, 950 ℃ of roastings 2 hours, get carrier B, its character is listed in table 1.
Embodiment 3
In embodiment 1, phosphoric acid changes boric acid into, and acetate changes nitric acid into, and it is the cost example that the sesbania powder changes 11.8g into by 7.2g, gets support C, and its character is referring to table 1.
Embodiment 4
In embodiment 1, alumina powder changes 54g into by 15g, and the sesbania powder changes 11.8g into by 7.2g, and water purification changes 270g acetate into by 211g, and to change nitric acid into be the cost example, carrier D, its character sees Table 1.
Embodiment 5
In embodiment 1, alumina powder changes 10g into by 15g, and carbon black changes 16.2g into by 12.1g, and it is the cost example that while phosphoric acid changes aluminum phosphate into, gets carrier E, and its character sees Table 1.
Embodiment 6
In embodiment 1, changing ammonium borate 2.28g into by adding phosphatase 11 .55g is the cost example, gets carrier F, and its character sees Table 1.
Comparative example 1 (CN1,160,602)
230g boehmite dry glue powder and mixed the pinching of 11.1g carbon black, 1.45g phosphoric acid, 6.5g sesbania powder and 207g water are become plastic, press embodiment 1 same procedure extruded moulding and drying and roasting then, get carrier G, its character is referring to table 1.
Embodiment 7
This example provides the Main physical character of carrier in above-mentioned each example, sees Table 1.
The Main physical character of table 1 carrier
Carrier A B C D E F G
Bulk density g/ml mechanical strength N/mm specific surface m 2/ g pore volume (mercury injection method) ml/g can a few aperture nm pore-size distribution %<10nm 10-20nm 0.53 11.9 161 1.15 17.3 12 72 0.54 12.1 157 1.05 17.8 10 74 0.53 12.6 158 1.10 18.0 12 71 0.55 14.0 172 0.90 16.8 9 75 0.55 11.3 135 1.00 17.1 12 71 0.53 11.4 147 1.20 18.1 10 72 0.52 7.6 162 1.20 17.1 13 60
As can be seen from Table 1, carrier A of the present invention, B, C, D, E, F all have bigger aperture and concentrated pore size distribution, and intensity is good, and bulk density is suitable.

Claims (11)

1.一种重油加氢处理催化剂所用的大孔径氧化铝载体:其孔容为0.80-1.30ml/g,比表面积为100-200m2/g,可几孔径为15-20nm,孔径在10-20nm之间的孔容占总孔容的70%以上,机械强度≥10.0N/mm,堆积密度≥0.52g/ml。1. A large-pore-diameter alumina carrier used in heavy oil hydrotreating catalysts: the pore volume is 0.80-1.30ml/g, the specific surface area is 100-200m2 /g, the pore diameter is 15-20nm, and the pore diameter is 10-20nm. The pore volume between 20nm accounts for more than 70% of the total pore volume, the mechanical strength is ≥10.0N/mm, and the bulk density is ≥0.52g/ml. 2.如权利要求1所述载体,其特征在于载体的孔容为0.9-1.2ml/g,比表面积为150-180m2/g,可几孔径为16-19nm。2. The carrier according to claim 1, characterized in that the pore volume of the carrier is 0.9-1.2ml/g, the specific surface area is 150-180m 2 /g, and the pore diameter is 16-19nm. 3.一种制备权利要求1所述载体的方法,包括以下步聚:3. A method for preparing the carrier according to claim 1, comprising the following steps: (1)、拟薄水铝石和氧化铝粉与物理扩孔剂、化学扩孔剂、胶溶剂、助挤剂及水混捏成可塑体;(1) Pseudo-boehmite and alumina powder are mixed with physical pore-enlarging agent, chemical pore-enlarging agent, peptizer, extrusion aid and water to form a plastic body; (2)、将(1)所得物料在挤条机上挤条成型;(2), the material obtained in (1) is extruded on the extruder; (3)、将(2)所得物料在90-200℃下干燥2-8小时或自然干燥及在800-1100℃下焙烧1-5小时得到本发明载体;(3), drying the material obtained in (2) at 90-200°C for 2-8 hours or natural drying and roasting at 800-1100°C for 1-5 hours to obtain the carrier of the present invention; 其中步骤(1)所述氧化铝粉用量以物料中总氧化铝计为5-30m%,所说的胶溶剂是有机酸和/或无机酸,加入量为1.0-3.0m%,所说的物理扩孔剂为可燃性固体颗粒,化学扩孔剂为含磷、硅或硼的化合物,助挤剂为田菁粉、甲基纤维素、淀粉或聚乙烯醇。Wherein the amount of aluminum oxide powder described in step (1) is 5-30m% based on total alumina in the material, said peptizer is organic acid and/or inorganic acid, and the addition is 1.0-3.0m%, said The physical pore-enlarging agent is combustible solid particles, the chemical pore-enlarging agent is a compound containing phosphorus, silicon or boron, and the extrusion aid is scallop powder, methyl cellulose, starch or polyvinyl alcohol. 4.按照权利要求3所述的制备方法,其特征在于步聚(1)中所述氧化铝粉为氢氧化铝干胶在300-600℃下焙烧而成。4. The preparation method according to claim 3, characterized in that the alumina powder in the step (1) is formed by baking aluminum hydroxide dry glue at 300-600°C. 5.按照权利要求3所述的制备方法,其特征在于所说的有机酸为甲酸和/或乙酸。5. according to the described preparation method of claim 3, it is characterized in that said organic acid is formic acid and/or acetic acid. 6.按照权利要求3所述的制备方法,其特征在于所说的无机酸为硝酸。6. according to the described preparation method of claim 3, it is characterized in that said mineral acid is nitric acid. 7.按照权利要求3所述的制备方法,其特征在于所说的物理扩孔剂用量以物料中总氧化铝计为3-10m%。7. The preparation method according to claim 3, characterized in that the amount of said physical pore-enlarging agent is 3-10m% based on the total alumina in the material. 8.按照权利要求3或7所述的制备方法,其特征在于所说的物理扩孔剂为炭黑。8. according to the described preparation method of claim 3 or 7, it is characterized in that said physical pore-enlarging agent is carbon black. 9.按照权利要求3所述的制备方法,其特征在于所说的化学扩孔剂加入量以总氧化铝计为0.1-1.5m%。9. The preparation method according to claim 3, characterized in that the added amount of said chemical pore-enlarging agent is 0.1-1.5m% based on total alumina. 10.按照权利要求9所述的制备方法,其特征在于所说的化学扩孔剂为硼酸、磷酸或硼酸盐、磷酸盐。10. according to the described preparation method of claim 9, it is characterized in that said chemical pore expander is boric acid, phosphoric acid or borate, phosphate. 11.按照权利要求3所述的制备方法,其特征在于所说的助挤剂加入量以总氧化铝计为4.0-6.0m%。11. The preparation method according to claim 3, characterized in that said extrusion aid is added in an amount of 4.0-6.0m% based on total alumina.
CN98121083A 1998-12-16 1998-12-16 Catalyst carrier for heavy oil hydrogenation treatment and preparation thereof Expired - Lifetime CN1098731C (en)

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CN101632934B (en) * 2009-08-19 2012-03-28 中国海洋石油总公司 Preparation method and application of a catalyst for hydrogenation of carbon five fractions
CN102389786B (en) * 2011-09-16 2014-04-09 南京农业大学 High-performance composite photocatalyst and preparation method thereof
CN103418349B (en) * 2012-05-17 2015-11-25 中国石油化工股份有限公司 A kind of containing alcohol hydrated alumina forming matter and preparation method thereof
CN103418352B (en) * 2012-05-25 2016-01-20 中国石油化工股份有限公司 Phosphorous hydrated alumina forming matter and preparation method and prepare the method for phosphorus-containing alumina article shaped
CN104226286A (en) * 2013-06-24 2014-12-24 丁章云 Catalyst carrier and preparation method thereof
CN104549537B (en) * 2013-10-23 2017-01-18 中国石油化工股份有限公司 Preparation method for heavy oil hydrogenation catalyst carrier
CN104588125B (en) * 2013-11-03 2016-11-16 中国石油化工股份有限公司 A kind of preparation method of alumina carrier
CN106669649B (en) * 2015-11-11 2019-03-19 中国石油化工股份有限公司 A kind of preparation method of flue gas reduction and desulfurization catalyst
CN106669707B (en) * 2015-11-11 2019-04-12 中国石油化工股份有限公司 The preparation method of Hydrodemetalation catalyst
CN106914280A (en) * 2015-12-28 2017-07-04 中国石油天然气股份有限公司 Preparation method of catalyst carrier for residual oil hydrotreating
CN107774278B (en) * 2016-08-31 2019-10-15 中国石油化工股份有限公司 A kind of preparation method of flue gas reduction and desulfurization catalyst
CN107774240B (en) * 2016-08-31 2019-10-15 中国石油化工股份有限公司 The preparation method of flue gas reduction and desulfurization catalyst
CN108187709B (en) * 2017-12-22 2020-06-19 洛阳金达石化有限责任公司 Preparation method of deep hydrodesulfurization catalyst and application of catalyst

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123820A (en) * 1981-01-19 1982-08-02 Mitsubishi Chem Ind Ltd Production of formed body of porous activated alumina
DE3841114A1 (en) * 1987-12-12 1989-06-22 Kansai Coke & Chemicals METHOD FOR PRODUCING AN ADSORPTION AGENT FOR SEPARATING AND DETERMINING CO
US5157007A (en) * 1989-12-09 1992-10-20 Degussa Ag Catalyst for purification of exhaust gases of diesel engines and method of use
CN1160602A (en) * 1996-03-26 1997-10-01 中国石油化工总公司抚顺石油化工研究院 Large-pore alumina carrier and its preparation process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123820A (en) * 1981-01-19 1982-08-02 Mitsubishi Chem Ind Ltd Production of formed body of porous activated alumina
DE3841114A1 (en) * 1987-12-12 1989-06-22 Kansai Coke & Chemicals METHOD FOR PRODUCING AN ADSORPTION AGENT FOR SEPARATING AND DETERMINING CO
US5157007A (en) * 1989-12-09 1992-10-20 Degussa Ag Catalyst for purification of exhaust gases of diesel engines and method of use
CN1160602A (en) * 1996-03-26 1997-10-01 中国石油化工总公司抚顺石油化工研究院 Large-pore alumina carrier and its preparation process

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