Removal of indigenous metal impurities from an oil with phosphorus oxide-promoted alumina

• US 4,192,736 A
• Filed: 11/29/1978
• Issued: 03/11/1980
• Est. Priority Date: 11/29/1978
• Status: Expired due to Term

• Current Assignee: Chevron Research Company (Chevron Corp.)
• Original Assignee: Chevron Research Company (Chevron Corp.)
• Inventors: Kluksdahl, Harris E.
• Primary Examiner(s): Crasanakis, George
• Application Number:
  US05/964,766
• Time in Patent Office: 468 Days
• Field of Search: 208/253, 208/251 R, 208/251 H
• US Class Current: 208/251.00H
• CPC Class Codes: B01J 27/14 Phosphorus; Compounds thereof
• CPC Class Codes: C10G 2300/107 Atmospheric residues having a boiling point of at least about 538 °C

Abstract

Indigenous metal impurities in an oil are removed by contacting the oil with a novel solid consisting essentially of porous alumina containing a minor amount of phosphorus. The contacting is carried out under oil demetallizing conditions.

Claims

1. In a process for upgrading an oil selected from the group consisting of petroleum and syncrude oils, fractions and mixtures thereof containing at least a substantial content of at least one metal impurity selected from the group consisting of metal impurities indigenous to said oils, by contact thereof under oil demetallizing conditions with a solid consisting esentially of alumina containing an oxide promoter, the improvement comprising (1) carrying out said contact with an alumina having a pore volume of at least 0.3 cc per gram and said oxide promoter being phosphorus oxide in the range of from about 0.1 to 10 parts;

calculated as phosphorus, for each 100 parts of alumina in parts by weight.

2. A process as in claim 1 wherein at least 50% of said pore volume is in macropores having diameters in the 60 to 250 Angstrom range and an amount in the range 5 to 10% of said pore volume is in macropores having diameters above about 1000 Angstroms.

3. A process as in claim 1 wherein said solid contains about 1 weight percent of phosphorus.

4. A process as in claim 1 wherein said conditions include a temperature of about 400°

C., a hydrogen rate, SCM per kiloliter, of about 200, a pressure of about 170 atmospheres gauge, and a space velocity, V/V/Hr, of about 1.