Hydroprocessing catalyst prepared with waste catalyst fines and its use
US-9211536-B2 · Dec 15, 2015 · US
Hydrotreating catalyst, process for producing same, and process for hydrotreating hydrocarbon oil
US8962514B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8962514-B2 |
| Application number | US-201013138774-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2010 |
| Priority date | Mar 23, 2009 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A hydrotreating catalyst that exhibits excellent levels of both desulfurization activity and denitrification activity. The hydrotreating catalyst is prepared by supporting molybdenum, cobalt and nickel on a carrier comprising aluminum, silicon, phosphorus and boron, and then performing a presulfiding treatment, and has an average stacking number for molybdenum sulfide slab that is greater than 1.0 but not more than 1.9. Also, a process for producing a hydrotreating catalyst that enables a hydrotreating catalyst having excellent levels of both desulfurization activity and denitrification activity to be produced with comparative ease. The process includes a first step of mixing an acidic aluminum salt aqueous solution and a basic aluminum salt aqueous solution in the presence of phosphate ions and silicate ions to achieve a pH of 6.5 to 9.5, thereby obtaining a hydrate, a second step of adding boron to the hydrate to prepare a carrier-forming material, a third step of molding and calcining the carrier-forming material to obtain a carrier, a fourth step of supporting molybdenum, cobalt and nickel on the carrier to obtain a catalyst precursor, and a fifth step of performing a presulfiding treatment by bringing the catalyst precursor into contact with a mixed gas containing hydrogen and hydrogen sulfide under conditions including a pressure of not less than 2.0 MPa and a maximum temperature of 240 to 380° C.
First claim
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The invention claimed is: 1. A hydrotreating catalyst being a calcined product comprising: a carrier comprising aluminum, silicon, phosphorus and boron; and molybdenum, cobalt and nickel supported on the carrier; wherein, relative to 100% by mass of the carrier, (a) an aluminum content in the carrier in terms of aluminum oxide (Al 2 O 3 ) is 75% or more, (b) a silicon content in the carrier in terms of silicon oxide (SiO 2 ) is 0.2% or more and 10.0% or less, (c) a phospho…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8962514B2 cover?
- A hydrotreating catalyst that exhibits excellent levels of both desulfurization activity and denitrification activity. The hydrotreating catalyst is prepared by supporting molybdenum, cobalt and nickel on a carrier comprising aluminum, silicon, phosphorus and boron, and then performing a presulfiding treatment, and has an average stacking number for molybdenum sulfide slab that is greater than …
- Who is the assignee on this patent?
- Seki Hiroyuki, Fukui Yoshiaki, Yoshida Masanori, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B01J23/883. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).