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什么是氧化铝板你知道吗?

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氧化铝板常被用作加氢处理催化剂的载体,由于渣油分子量较大,直链较多,很难进出一般氧化铝板的孔道内,然后导致渣油的加氢处理功率不抱负。
Alumina plate is often used as the carrier of hydrotreating catalyst. Because of the large molecular weight of residual oil and the large straight chain, it is difficult to enter and exit the pore of general alumina plate, and then the hydrotreating power of residual oil is not ambitious.
现在工业上首要通过沉积、枯燥和焙烧氢氧化铝板前驱体来制备氧化铝板载体,其孔道通透性低,孔径偏小且散布较宽,难以满足日趋变重的重质油的加氢处理过程。
Nowadays, alumina plate carriers are mainly prepared by deposition, drying and calcination of alumina plate precursors. The pore permeability of alumina plate carriers is low, the pore size is small and the distribution is wide, so it is difficult to meet the increasing heavy oil hydrotreating process.
因此制备出具有高比外表积、高度有序结构、大孔径、外表酸性中心等杰出特点的氧化铝板资料,显得尤为重要。 氧化铝板有12种以上,现在首要运用的有α-A12O3、β-A12O3和γ-A12O3这3种晶型。其间γ-A12O3只在低
Therefore, it is particularly important to prepare alumina sheet materials with high specific surface area, highly ordered structure, large pore size and external acidic center. There are more than 12 kinds of alumina sheets, and the three crystal forms, alpha-A12O3, beta-A12O3 and gamma-A12O3, are mainly used now. In the meantime, gamma-A12O3 was only low
氧化铝板常被用作加氢处理催化剂的载体,由于渣油分子量较大,直链较多,很难进出一般氧化铝板的孔道内,然后导致渣油的加氢处理功率不抱负。
Alumina plate is often used as the carrier of hydrotreating catalyst. Because of the large molecular weight of residual oil and the large straight chain, it is difficult to enter and exit the pore of general alumina plate, and then the hydrotreating power of residual oil is not ambitious.
现在工业上首要通过沉积、枯燥和焙烧氢氧化铝板前驱体来制备氧化铝板载体,其孔道通透性低,孔径偏小且散布较宽,难以满足日趋变重的重质油的加氢处理过程,因此制备出具有高比外表积、高度有序结构、大孔径、外表酸性中心等杰出特点的氧化铝板资料,显得尤为重要。
Alumina plate carriers are mainly prepared by deposition, dryness and calcination of alumina plate precursors in industry. The pore permeability is low, the pore size is small and the distribution is wide. It is difficult to meet the hydrotreating process of heavy oil which is getting heavier and heavier. Therefore, alumina plate data with high specific surface area, highly ordered structure, large pore size and external acidic center are prepared. It seems particularly important.
氧化铝板有12种以上,现在首要运用的有α-A12O3、β-A12O3和γ-A12O3这3种晶型。其间γ-A12O3只在低温下安稳存在,高温下会变得不安稳,不会溶解于水,但会溶于酸、碱。
There are more than 12 kinds of alumina sheets, and the three crystal forms, alpha-A12O3, beta-A12O3 and gamma-A12O3, are mainly used now. In the meantime, gamma-A12O3 only exists stably at low temperature, and becomes unstable at high temperature. It will not dissolve in water, but will dissolve in acid and alkali.


因其有较大的比外表 α-A12O3是在较高温度下能够安稳存在的相态,其熔点为2050℃,不溶于水,亦不溶于酸和碱,耐腐蚀,化学性质安稳,常见以刚玉为代表。其他相态暂认为是过渡态或不安稳态,研讨较少。
Because of its larger specific appearance, alpha-A12O3 is a stable phase at a higher temperature, its melting point is 2050 C, insoluble in water, acid and alkali, corrosion resistance, chemical stability, commonly represented by corundum. Other phase states are temporarily considered to be transitional or unstable, and few studies have been carried out.
氧化铝板开展至今,已出现许多可行性工艺,根据其应用不同而有针对性地加工处理,可得到特定需求的满足产品。
Since the development of alumina sheet, there have been many feasible processes. According to their different applications, processing can be targeted to meet the specific needs of products.
对其描摹的研讨亦多元化,几乎一切的组成中,都在寻找一种令组成产品优越、操作简略且能耗较低的方法。依照氧化铝板生长平面空间方向的不同可分为一维棒状、片层状及球曲面状。
Discussions on its description are also diversified. Almost all of the components are looking for a way to make the products superior, simple operation and the lowest energy consumption. According to the spatial orientation of the growth plane of alumina plate, it can be divided into one-dimensional rod, lamellar and spherical shape.
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The above information is published by our aluminium plate manufacturer in the hope of helping you with our website: !

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