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Silica-alumina composites for hydrotreating applications

A silica and hydrotreating technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, catalyst activation/preparation, etc., can solve problems such as difficult to control pore structure

Pending Publication Date: 2022-07-08
CHEVROU USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the nature of the amorphous structure, it may be difficult to control the pore structure of silica-alumina materials during synthesis

Method used

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  • Silica-alumina composites for hydrotreating applications
  • Silica-alumina composites for hydrotreating applications
  • Silica-alumina composites for hydrotreating applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0063] Representative amorphous silica-alumina according to the present invention are used in the examples shown in Table 1, each of which is commercially available:

[0064] Table 1 - Amorphous silica-alumina used in the examples

[0065]

[0066] According to the present invention, the amounts of amorphous silica-alumina and nitric acid shown in Table 2 were used to prepare hydroprocessing catalyst substrates HCB-1 to HCB-7. The synthesis and characterization of each HCB sample is described below.

[0067] Table 2 - Formulations of Hydrotreating Catalyst Substrates HCB-1 to HCB-7

[0068]

[0069]

[0070] *25wt% pseudo-boehmite alumina powder balanced by 8wt% USY zeolite (SAR=50-150)

[0071] Synthesis and Characterization of Hydrotreating Catalyst Base-1 (HCB-1)

[0072] Hydrotreating catalyst substrate-1 was prepared as follows: 37 parts by weight of silica-alumina sample-1, 30 parts by weight of silica-alumina sample-5, 25 parts by weight of pseudo-boehmite a...

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Abstract

Silica-alumina based composites for the preparation of hydrotreating catalysts are disclosed. The silica-alumina composite generally includes at least two silica-alumina, the first being a modified first silica-alumina and the second being an unmodified or modified second silica-alumina. The first silica-alumina is modified to include silica and alumina domains and a silica-alumina interfacial phase. The second silica-alumina may also be modified simultaneously or separately to include silica and alumina domains and a silica-alumina interfacial phase. The first silica-alumina and the second silica-alumina differ in one or more physical and / or chemical properties, such as silica to alumina ratio, surface area, pore size, pore volume, silica domain size, or alumina domain size. The invention can be used to prepare catalyst substrate materials and catalysts that can be used to upgrade hydrocarbon feedstocks to produce fuels, lubricants, chemicals, and other hydrocarbonaceous compositions.

Description

[0001] Field of Invention [0002] The present invention relates to silica-alumina based composites for the preparation of hydrotreating catalysts. The present invention can be used to prepare catalyst substrate materials and catalysts that can be used to upgrade hydrocarbon feedstocks to produce fuels, lubricants, chemicals and other hydrocarbon-containing compositions. [0003] Background of the Invention [0004] Solid acidic materials such as crystalline zeolites and amorphous silica-alumina play an important role in hydroprocessing applications. Amorphous silica-alumina is widely used as an important acidic component for dispersing base metals such as nickel, cobalt, tungsten and molybdenum and noble metals such as palladium and platinum in bifunctional hydroprocessing catalysts. The pore structure and acidity of silica alumina greatly affects the selectivity of the hydrotreating process to convert the heavier molecules in crude oil into desired products including, for ex...

Claims

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Application Information

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IPC IPC(8): B01J21/12B01J23/28B01J23/30B01J23/38B01J23/75B01J23/755B01J29/06B01J29/08B01J29/70B01J35/00B01J35/02B01J37/00B01J37/02B01J37/08C10G45/04C10G45/46C10G47/02B01J29/78B01J37/04B01J35/10
CPCB01J37/0009B01J37/0207B01J37/08B01J29/08B01J29/06B01J29/7007B01J23/38B01J23/28B01J23/30B01J23/755B01J23/75B01J21/12B01J37/0201B01J37/0236B01J37/04B01J29/7815C10G47/14C10G45/10B01J35/19B01J35/50B01J35/00B01J35/30B01J35/69B01J29/106B01J37/06C10G45/12C10G47/18C10G2300/1055C10G2300/202C10G2300/302C10G2300/308C10G2300/70C10G2400/04B01J35/31B01J35/615B01J35/617B01J35/635B01J35/638B01J35/647
Inventor A·梁T·J·奥拓J·贾焦凌B·Q·勒K·乔杜里詹必增
Owner CHEVROU USA INC
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