Method for optimizing catalyst loading for hydrocracking process

Patent metadata

Field	Value
Publication number	US-9347006-B2
Application number	US-201414149274-A
Country	US
Kind code	B2
Filing date	Jan 7, 2014
Priority date	Jan 8, 2013
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

The invention relates to a method for optimizing layered catalytic processes. This is accomplished by testing various catalysts with a compound found in a feedstock to be tested, to determine the facility of the catalyst in hydrogenating, hydrosulfurizing, or hydrodenitrogenating the molecule, and hence the feedstock. In a preferred embodiment, the Double Bond Equivalence of the feedstock and molecule are determined, and catalysts are pre-selected based upon their known ability to work with materials of this DBE value.

First claim

The invention claimed is:

1. A method for optimizing a layered hydrocracking catalytic process, comprising (i) contacting a model compound capable of (a) being hydrocracked as well as at least one of (ii) hydrogenation, hydrosulfurization and hydrodenitrogenation to a plurality of catalysts to determine an optimal catalyst for each of (i) and (ii), (b) following by layering the optimal catalysts for each of (i) and (ii) in a reaction chamber based on their activity reacting with said model compound, and (c) contacting a feedstock to the layered catalysts under condition favoring formation of lower weight hydrocarbon from said hydrocarbon containing feedstock, wherein said model compound boils in the range of 180° C.-520° C. and is selected from the group consisting of methylnaphthalene, dibenzothiophene, an alkylated or naphtalated derivative thereof, a basic nitrogen compound and a carbazole molecule.

2. The method of claim 1 , further comprising determining double bond equivalence (DBE,) of said feedstock, and contacting said model compound to a plurality of catalysts suitable for hydrocracking a substance with a DBE of said feedstock, to determine an optimum hydrocracking catalyst for said feedstock.

3. The method of claim 2 , further comprising contacting said model compound to a second plurality of catalysts suitable for hydrogenerating, hydrodesulfurizing, or hydrodenitrogenating a substance with a DBE value less than said feedstock to determine an optimal, second catalyst.

4. The method of claim 2 , wherein said hydrocarbons contained in said feedstock have a double bond equivalency of 24 or less.

5. The method of claim 2 , wherein said feedstock has a double bond equivalency of 24 or less, and at least one of said catalysts for VGO hydrocracking catalyst.

6. The method of claim 2 , wherein said feedstock has a double bond equivalency of 25 or more, and at least one of said catalysts is a catalyst designed for heavy feedstock.

7. The method of claim 1 , comprising contacting said hydrocarbon containing feedstock to said reaction chamber at a temperature of from 350° C. to 450° C.

8. The method of claim 1 , comprising contacting said hydrocarbon containing feedstock to said reaction chamber at a hydrogen feed rate less than 2500 liters per liter of feedstock.

9. The method of claim 1 , comprising contacting said hydrocarbon containing feedstock to said reaction vessel at a pressure of from 100 bars to 200 bars.

10. The method of claim 1 , wherein at least one of said catalysts contains a metal from Group VI, VII or VIIIB of the periodic table, or is a noble metal.

11. The method of claim 10 , wherein said metal is Co, Ni, W, Mo, Pt, or Pd.

12. The method of claim 1 , wherein at least one of said catalysts contains amorphous alumina, silica-alumina, titanium, Y zeolite, or at least one a transition metal inserted Y zeolite.

13. The method of claim 12 , wherein said transition metal is Zr, Ti, Hf and combination thereof.

14. The method of claim 1 , wherein said molecule is capable of being at least two of hydrogenated, hydrodesulfurized, and Itydrodenitrogenated.

15. The method of claim 1 , wherein said molecule is capable of being hydrogenated, hdrodesulfurized, and hydrodenitrogenated.

Assignees

• Saudi Arabian Oil Co
• Jgc Catalysts & Chemicals Ltd
• Japan Cooperation Ct Petroleum

Inventors

• Koseoglu Omer Refa
• Al-Hajji Adnan
• Muller Hendrik
• Ushio Masaru
• Nakano Koji

Classifications

• C10G49/02

  characterised by the catalyst used · CPC title

• B01J23/882

  and cobalt · CPC title

• C10G45/10

  containing platinum group metals or compounds thereof · CPC title

• B01J23/883

  and nickel · CPC title

• C10G49/08

  containing crystalline alumino-silicates, e.g. molecular sieves · CPC title