METHOD FOR PRODUCING A CRUDE PRODUCT WITH REDUCED TAN

• US 20070000810A1
• Filed: 06/22/2006
• Published: 01/04/2007
• Est. Priority Date: 12/19/2003
• Status: Abandoned Application

• Current Assignee: Shell Oil Company (Shell Plc)
• Original Assignee: Shell Oil Company (Shell Plc)
• Inventors: Wellington, Scott, Bhan, Opinder
• Application Number:
  US11/425,979
• Publication Number:
  US 20070000810A1
• Time in Patent Office: Days
• US Class Current: 208/263
• CPC Class Codes: C10G 2300/107 Atmospheric residues having a boiling point of at least about 538 °C
• CPC Class Codes: C10G 2300/203 Naphthenic acids, TAN
• CPC Class Codes: C10G 29/06 Metal salts, or metal salts deposited on a carrier
• CPC Class Codes: C10G 45/02 to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
• CPC Class Codes: C10G 45/04 characterised by the catalyst used
• CPC Class Codes: C10G 45/08 in combination with chromium, molybdenum, or tungsten metals, or compounds thereof

Abstract

Contacting a crude feed with one or more catalysts to produce a total product that includes the crude product is described. The crude feed has a TAN of at least 1. At least one of the catalysts includes one or more metals from Columns 6-10 of the Periodic Table and/or one or more compounds of one or more metals from Columns 6-10 of the Periodic Table. Contacting conditions are controlled contacting such that the crude product has a TAN from about 0.001 to about 0.5.

Claims

1. A method of producing a crude product, comprising:

contacting a crude feed with one or more catalysts to produce a total product that includes the crude product, wherein the crude product is a liquid mixture at 25°

C. and 0.101 MPa, the crude feed having a TAN of at least 1, at least one of the catalysts comprising one or more metals from Columns 6-10 of the Periodic Table and/or one or more compounds of one or more metals from Columns 6-10 of the Periodic Table; and

controlling contacting conditions such that the crude product has a TAN from about 0.001 to about 0.5, wherein TAN is as determined by ASTM D664.

2. The method of claim 1, wherein the TAN of the crude feed is at least 5.

3. The method of claim 1, wherein the TAN of the crude feed is at least 8.

4. The method of claim 1, wherein the TAN of the crude feed is at least 10.

5. The method of claim 1, wherein the crude product has a TAN ranging from 0.002 to about 0.3.

6. The method of claim 1, wherein the catalyst is a supported catalyst, and wherein the support comprises alumina, silica, silica-alumina, titanium oxide, zirconium oxide, magnesium oxide, or mixtures thereof.

7. The method of claim 1, wherein the crude feed has, per gram of crude feed, a total content of alkali metal and alkaline-earth metal in metal salts of organic acids of at least 0.00001 grams and the crude product has a total content of alkali metal and alkaline-earth metal in metal salts of organic acids of at most 90% of the content of alkali metal, and alkaline-earth metal, in metal salts of organic acids in the crude feed.

8. The method of claim 7, wherein one or more of the metals is calcium, potassium, sodium, magnesium, lithium, or combinations thereof.

9. The method of claim 1, wherein the crude feed has a content of Columns 5-12 metals in metal salts of organic acids, and the crude product has a content of Columns 5-12 metals in metal salts of organic acids of at most 90% of the content of Columns 5-12 metals in metal salts of organic acids of the crude feed.

10. The method of claim 9, wherein one or more of the metals is vanadium, molybdenum, chromium, iron, nickel, zinc, or combinations thereof.

11. The method of claim 1, wherein the crude feed comprises silicon, and the crude product has a content of silicon of at most 90% of the content of the silicon of the crude feed.

12. The method of claim 1, wherein the crude feed has a viscosity of at least 10 cSt at 37.8°

C. (100°

F.) and the contacting conditions are controlled such that the crude product has a viscosity at 37.8°

C. of at most 90% of the viscosity of the crude feed at 37.8°

C.