CN112516993B - 一种氧化铝载体的制备方法 - Google Patents
一种氧化铝载体的制备方法 Download PDFInfo
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- CN112516993B CN112516993B CN201910876555.5A CN201910876555A CN112516993B CN 112516993 B CN112516993 B CN 112516993B CN 201910876555 A CN201910876555 A CN 201910876555A CN 112516993 B CN112516993 B CN 112516993B
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- alumina
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- aluminum salt
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 43
- 239000002243 precursor Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 16
- 230000032683 aging Effects 0.000 claims abstract description 14
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 13
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000002378 acidificating effect Effects 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 claims description 8
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 6
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 6
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 6
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 4
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 235000006481 Colocasia esculenta Nutrition 0.000 claims description 2
- 240000004270 Colocasia esculenta var. antiquorum Species 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 239000003245 coal Substances 0.000 claims description 2
- 239000011280 coal tar Substances 0.000 claims description 2
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 15
- 239000013078 crystal Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 8
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000219793 Trifolium Species 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000975 co-precipitation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018626 Al(OH) Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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Abstract
本发明公开了一种氧化铝载体的制备方法，包括如下内容：在反应釜内加入一定量的底水，加热至60～100℃，然后加入一定量的纳米金属氧化物颗粒，调节pH为2.5～3.0，然后并流加入酸性铝盐水溶液和碱性铝盐水溶液，调节pH为7.0～9.0，中和成胶一段时间后，进行老化，老化后的物料经固液分离，干燥得到氧化铝前驱体，氧化铝前驱体经成型过程，然后低温焙烧，得到氧化铝载体。本发明有效降低了前驱体转化为γ‑氧化铝的转相温度，在较低焙烧温度下就可以得到性质优异的氧化铝载体，能够用于各种加氢催化剂的制备。
Description
技术领域
本发明涉及一种氧化铝载体的制备方法。
背景技术
共沉淀法为氧化铝载体制备的重要手段之一。该方法一般是把碱类物质（沉淀剂）加入金属盐类的水溶液中，然后生成的沉淀物经干燥、焙烧等过程，得到所要的氧化铝载体。然而共沉淀过程中，初始晶核多为硅胶、硅铝胶、Fe(OH)3、Al(OH)3等，结合羟基多，分子极性小，聚集速率远大于定向速率，易生成无定形的凝胶状沉淀，而这种无定形的沉淀作为晶核，经过一段时间老化，晶型很难完善，从而导致结晶度不高。用作催化剂载体一般为具有一定强度的γ-氧化铝，为了获得γ-氧化铝通常采用高温焙烧使晶相，然而高温焙烧会导致氧化铝载体比表面积大幅降低，强度降低，磨耗增加，严重影响氧化铝载体的物化性质。
CN108975366A涉及提供一种大孔拟薄水铝石的制备方法。包括：将达到指标要求的铝酸钠溶液中的氧化铝浓度调配至预定浓度后降温至预定温度，得到第一溶液；向所述第一溶液中加入扩孔剂，在预定条件下成胶，得到第一胶体；将所述第一胶体老化后进行洗涤、烘干。该方法制得的大孔拟薄水铝石，孔容远远大于普通的拟薄水铝石，使得其在作为催化剂使用时，生产的油的品质更好，对环境的污染更小，但该方法获得大孔需要额外添加扩孔剂，造成成本偏高。。
CN101239330A涉及一种微球形催化剂载体的制备方法。具体制备过程如下：将湿度适宜的催化剂载体原料物料制成适宜大小的颗粒，然后将该颗粒球化处理，球形物的直径为0.1～0.8mm，将球形物加热制成球形催化剂载体，该方法制备的载体需要在600～1000℃条件下高温焙烧才能得到所需物性的氧化铝载体。
CN106315642B涉及一种拟薄水铝石的制备方法和γ-氧化铝的制备方法，该拟薄水铝石的制备方法包括将偏铝酸钠或铝酸钠的溶液与含二氧化碳的气体接触，以连续或间歇的方式成胶，并将成胶后得到的混合物进行浓缩，然后将所得浓缩液加水或不加水后进行老化。该方法可以容易地获得孔容在0.6毫升/克以上的γ-氧化铝，但该方法的焙烧温度达到550～850℃，高焙烧温度对孔结构会造成一定的损失。
发明内容
针对现有技术的不足，本发明提供一种氧化铝载体的制备方法。本发明有效降低了前驱体转化为γ-氧化铝的转相温度，在较低焙烧温度下就可以得到性质优异的氧化铝载体，能够很好的满足各种加氢催化剂产品的需要。
本发明的氧化铝载体的制备方法，包括如下内容：
在反应釜内加入一定量的底水，加热至60～100℃，然后加入一定量的纳米金属氧化物颗粒，调节pH为2.5～3.0，然后并流加入酸性铝盐水溶液和碱性铝盐水溶液，调节中和pH为7.0～9.0，中和成胶一段时间后，进行老化，老化后的物料经固液分离，干燥得到氧化铝前驱体，氧化铝前驱体经成型过程，然后低温焙烧，得到氧化铝载体。
本发明方法中，所述纳米金属氧化物颗粒可以按照现有技术自行制备也可以采用市售产品。
本发明方法中，所述纳米金属氧化物可以是纳米氧化镁、纳米氧化钛、纳米氧化锆、纳米氧化钼、纳米氧化镍、纳米氧化钨、纳米氧化钴、纳米氧化铁和纳米氧化锌等中的一种或几种，优选纳米氧化钼、纳米氧化镍、纳米氧化钨、纳米氧化钴和纳米氧化铁中的一种或多种。
本发明方法中，所述纳米金属氧化物颗粒的加入量占氧化铝载体重量的0.1%~1%，优选0.1%～0.5%。
本发明方法中，所述的酸性铝盐为AlCl3、Al2(SO4)3或Al(NO)3一种或几种，优选Al2(SO4)3，酸性铝盐水溶液的浓度以Al2O3计为10～100g/100mL，流速为10～80mL/min；所述的碱性铝盐为NaAlO2和/或KAlO2，优选NaAlO2，碱铝盐水溶液的浓度以Al2O3计为10～100g/100mL，流速为10～80mL/min。
本发明方法中，调节pH值一般采用酸性铝盐溶液或碱性铝盐溶液。
本发明方法中，中和成胶时间为0.5～3h。
本发明方法中，老化温度为60～100℃，老化时间为1～5小时。
本发明方法中，所述的固液分离过程可以采用常规的过滤、离心等方式，固液分离过程根据需要对物料进行洗涤去除盐类等杂质。
本发明方法中，所述的干燥条件为：干燥温度为100～200℃，干燥时间为1h～5h。所述的焙烧条件为：焙烧温度为300～350℃，焙烧时间为2～5小时。焙烧在含氧气氛中进行，一般氧含量大于10v%，优选空气。
本发明方法中，所述的成型过程可以采用挤出成型，根据需要制备不同形状的氧化铝载体，如圆柱形、三叶草形或四叶草形等形状。所述干燥后的氧化铝前驱体也可以直接焙烧得到球形氧化铝载体。
本发明方法制备的氧化铝载体，具有如下性质：比表面积为300～350m2/g，孔容为1.00～1.70mL·g-1；可几孔径为10～25nm；堆积密度为0.4～0.8g/mL；磨耗为0.1%～0.5%；载体强度为50～200N/mm，优选100～200N/mm。
本发明方法制备的氧化铝载体可用于制备渣油、蜡油、煤焦油、煤液化油、柴油和汽油等油品加氢催化剂。
本发明方法通过加入具有强极性、分子小的活性金属氧化物纳米颗粒为晶种，其具有较大的定向速率，易形成晶型沉淀或具有晶体结构的胶粒，使得晶体定向成长，晶体结晶度高，晶体更加完整。本发明方法可显著降低了氧化铝载体的转相温度，在低温下就可以制备具有晶体结构完整，结晶度高、强度高、磨耗低、孔容大和比表面积高的氧化铝载体。
附图说明
图1为本发明中实施例1、2、3、4及比较例1中氧化铝的XRD谱图。
具体实施方式
本发明方法中，比表面积和孔容采用低温液氮吸附法测定；氧化铝的晶相及结晶度采用XRD分析测定；氧化铝载体强度采用侧压强度仪测定；氧化铝载体磨耗采用旋转磨耗仪测定。
本发明方法中，纳米金属氧化物选自上海超威纳米科技有限公司，纳米金属氧化物颗粒性质如下表1所示。
表1 纳米金属氧化物性质
| CoO | NiO | MoO<sub>3</sub> | WO<sub>3</sub> | |
| 含量，% | 99.9 | 99.9 | 99.9 | 99.9 |
| 平均粒径，nm | 30 | 30 | 50 | 40 |
| 比表面积，m<sup>2</sup>/g | 40～70 | 50～100 | 30～100 | 20～50 |
| 松装密度，g/cm<sup>3</sup> | 0.57 | 0.80 | 0.91 | 1.5 |
| 真实密度，g/cm<sup>3</sup> | 6.11 | 6.67 | 6.79 | 7.16 |
下面通过具体实施例对本发明的氧化铝载体的制备方法进行更详细的描述。实施例只是对本发明方法的具体实施方式的举例说明，并不构成本发明保护范围的限制。
实施例1
在反应釜内加入3L的底水，加热到70℃，加入10g的纳米金属氧化钼，控制pH为3.5；然后按20mL/min的流速滴加50g/100mL的硫酸铝溶液，同时滴加100g/100mL的偏铝酸钠溶液，调节中和pH值为7.5，中和成胶1h后，在70℃下老化2h，经过滤、洗涤，100℃下干燥得到所需氧化铝驱体QA，然后在300℃下焙烧得到微球形氧化铝载体A，其性质见表2。
实施例2
在反应釜内加入5L的底水，加热到80℃，加入8g的活性金属纳米氧化钨，滴加硫酸铝控制pH为3.0；然后按50mL/min的流速滴加100g/100mL的硫酸铝溶液，同时滴加80g/100mL的偏铝酸钠溶液，调节中和pH值为8.0，中和成胶1.5h后，在80℃下老化1h，经过滤、洗涤、120℃下干燥得到所需氧化铝前驱体QB、310℃下焙烧得到所需微球形氧化铝载体B，其性质见表2。
实施例3
在反应釜内加入2L的底水，加热到90℃，加入5g活性纳米氧化钨和3g活性纳米氧化镍，滴加硫酸铝控制pH为2.5；然后按80mL/min的流速滴加50g/100mL的硫酸铝溶液，同时滴加90g/100mL的偏铝酸钠溶液，调节中和pH值为9.0，中和成胶1h后，在90℃下老化1.5h，经过滤、洗涤、150℃下干燥得到所需氧化铝前驱体QC、350℃下焙烧得到所需微球形氧化铝载体C，其性质见表2。
实施例4
在反应釜内加入10L的底水，加热到100℃，加入10g活性纳米氧化钨和2g活性纳米氧化钴，滴加硫酸铝控制pH为3.5；然后按60mL/min的流速滴加80g/100mL的硫酸铝溶液，同时滴加100g/100mL的偏铝酸钠溶液，调节中和pH值为8.5，中和成胶2h后，在100℃下老化1.0h，经过滤、洗涤、200℃下干燥得到所需氧化铝前驱体QD、300℃下焙烧得到所需微球形氧化铝载体D，其性质见表2。
实施例5
将实施例1、2、3、4的氧化铝前驱体QA、QB、QC、QD加入一定粘结剂形成可塑体，然后于挤条机中挤出，在180℃下干燥，300℃下焙烧，得到圆柱形氧化铝载体A-1，B-1，C-1和D-1，其性质见表2。
比较例1
在反应釜内加入10L的底水，加热到100℃，加入10g的氧化铝晶种；然后按60mL/min的流速滴加80g/100mL的硫酸铝溶液，同时滴加100g/100mL的偏铝酸钠溶液，调节中和pH值为8.5，中和成胶2h后，在100℃下老化1.0h，经过滤、洗涤、200℃下干燥得到所需氧化铝前驱体QE、400℃下焙烧得到所需微球形氧化铝载体E，其性质见表2。
比较例2
将比较例1的氧化铝前驱体QE加入一定粘结剂形成可塑体，然后于挤条机中挤成，在180℃下干燥，600℃下焙烧，得到圆柱形氧化铝载体E-1。
比较例3
同实施例1，只是焙烧温度为600℃，氧化铝载体标号F。
比较例4
同实施例1，只是未加入纳米金属氧化钼，氧化铝载体标号G。
比较例5
同实施例1，只是加入100g纳米金属氧化钼，氧化铝载体标号H。
表2实施例及比较例制备的氧化铝载体性质
由表1的数据可以看出，本发明方法在较低的温度条件下即可以制备具有较大比表面积、孔容、孔径的γ-氧化铝载体，且该载体强度高，磨耗低。
由图1可见，本发明方法及比较例1制备的氧化铝XRD图谱中都存在拟薄水铝石的典型特征峰，其d值为0.6356，0.32150，0.2340，0.1851nm；2θ为13.933，28.332，38.477，49.214°。但是与比较例1相比，本发明方法制备的氧化铝的XRD衍射峰峰宽要更窄而且尖锐，峰强度更高，说明其氧化铝结晶度要更高，且氧化铝纯度更高。
Claims (10)
1.一种氧化铝载体的制备方法，其特征在于包括如下内容：在反应釜内加入一定量的底水，加热至60～100℃，然后加入一定量的纳米金属氧化物颗粒，调节pH为2.5～3.0，然后并流加入酸性铝盐水溶液和碱性铝盐水溶液，调节pH为7.0～9.0，中和成胶一段时间后，进行老化，老化后的物料经固液分离，干燥得到氧化铝前驱体，氧化铝前驱体经成型过程，然后低温焙烧，得到氧化铝载体；
所述焙烧的温度为300～350℃；所述氧化铝载体具有如下性质：比表面积为300～350m2/g，孔容为1.00～1.70mL·g-1；可几孔径为10～25nm；堆积密度为0.4～0.8g/mL；磨耗为0.1%～0.5%；载体强度为50～200N/mm；
所述纳米金属氧化物为纳米氧化钼、纳米氧化镍、纳米氧化钨、纳米氧化钴中的一种或几种。
2.根据权利要求1所述的方法，其特征在于：所述纳米金属氧化物颗粒的加入量占氧化铝载体重量的0.1%~1%。
3.根据权利要求1所述的方法，其特征在于：所述纳米金属氧化物颗粒的加入量占氧化铝载体重量的0.1%～0.5%。
4.根据权利要求1所述的方法，其特征在于：所述的酸性铝盐为AlCl3、Al2(SO4)3或Al(NO)3一种或几种，酸性铝盐水溶液的浓度以Al2O3计为10～100g/100mL，流速为10～80mL/min；所述的碱性铝盐为NaAlO2和/或KAlO2，碱铝盐水溶液的浓度以Al2O3计为10～100g/100mL，流速为10～80mL/min。
5.根据权利要求1所述的方法，其特征在于：中和成胶时间为0.5～3h，老化温度为60～100℃，老化时间为1～5小时。
6.根据权利要求1所述的方法，其特征在于：所述的干燥条件为：干燥温度为100～200℃，干燥时间为1h～5h。
7.根据权利要求1所述的方法，其特征在于：所述焙烧时间为2～5小时。
8.根据权利要求1~7任一权利要求所述的方法制备的氧化铝载体，其特征在于：比表面积为300～350m2/g，孔容为1.00～1.70mL·g-1；可几孔径为10～25nm；堆积密度为0.4～0.8g/mL；磨耗为0.1%～0.5%；载体强度为50～200N/mm。
9.根据权利要求8所述的氧化铝载体，其特征在于：比表面积为300～350m2/g，孔容为1.00～1.70mL·g-1；可几孔径为10～25nm；堆积密度为0.4～0.8g/mL；磨耗为0.1%～0.5%；载体强度为100～200N/mm。
10.根据权利要求1~7任一权利要求所述的方法制备的氧化铝载体在制备渣油、蜡油、煤焦油、煤液化油、柴油和汽油加氢催化剂中的应用。
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| CN116060023B (zh) * | 2021-10-29 | 2024-07-02 | 中国石油化工股份有限公司 | 一种加氢催化剂及其制备方法 |
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| DE2107147A1 (de) * | 1970-02-16 | 1971-09-02 | Shell Internationale Research Maat schappij N V , Den Haag (Niederlande) | Verfahren zur Herstellung eines Alu mimumoxid Katalysatorträger |
| US4964883A (en) * | 1988-12-12 | 1990-10-23 | Minnesota Mining And Manufacturing Company | Ceramic alumina abrasive grains seeded with iron oxide |
| CN1048651C (zh) * | 1994-06-29 | 2000-01-26 | 中国石油化工总公司抚顺石油化工研究院 | 一种加氢催化剂载体的制备方法 |
| CN100400164C (zh) * | 2004-10-29 | 2008-07-09 | 中国石油化工股份有限公司 | 一种氧化铝载体的制备方法 |
| CN102807240A (zh) * | 2012-07-27 | 2012-12-05 | 上海度朔磨料磨具有限公司 | 拟薄水铝石及微晶刚玉磨料的制备方法 |
| CN103570049B (zh) * | 2013-11-12 | 2015-07-15 | 兰州大学 | 完全分散的α氧化铝纳米颗粒的制备方法 |
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