DE972001C - Process for removing sodium and vanadium from crude petroleum or petroleum products - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN PATENT OFFICE

ISSUED MAY 6, 1959

BIBUOTHSK

OF GERMAN PATENT OFFICE

PATENT LETTERING

CLASS 23b GROUP 1o5 INTERNAT. CLASS CIOg

A 18203 IVc I 23b

Frederick William Bertram Porter and Roy Purdy Northcott, Sunbury-on-Thames, Middlesex (Great Britain)

have been named as inventors

The British Petroleum Company Limited, London

Method of removing sodium and vanadium from crude petroleum or petroleum products

Addendum to patent 970 697

Patented in the territory of the Federal Republic of Germany on June 14, 1953 The main patent started on January 13, 1952
Patent application announced on August 30, 1956

Patent issued April 23, 1959
The priority of the application in Great Britain of June 18, 1952 has been claimed

The subject of patent 970 697 is a process for the removal of sodium and vanadium from crude petroleum or petroleum products, in which the crude petroleum or petroleum products with bauxite in the presence of hydrogen below ^{temperatures between 311 and 427 0} , preferably at 415 °, and such pressures lying between 57 and 71 kg / cm ² , preferably at 71 kg / cm ² , are treated that sodium and vanadium are retained by the bauxite.

It has now been found that crude oil or petroleum products can be used instead of bauxite

can treat a contact material consisting of fuller's earth and the treated oil, if necessary can then feed a hydrogenation zone to remove organically bound sulfur.

It is preferable to work under the following conditions:

Room flow rate 0.5 to 2 V / V / hour.

Temperature 400 to 430 °

Pressure 35 to 105 at

Recirculated amount of hydrogen 180 to 1800 m ³ / m ⁸

909 504/13

It has been found that in the hydrofining of crude petroleum and petroleum residues using a catalyst consisting of cobalt and molybdenum oxides on an alumina support is considerable Amounts of vanadium and sodium are absorbed by the catalyst and thereby the catalyst activity is constant during operation decreases and cannot be fully restored during regeneration in the usual way. According to the

ίο Invention, on the other hand, is ongoing Process the vanadium and / or sodium containing petroleum first treated with fuller's earth and therein in a hydrogenation zone of organically bound. ,,. Sulfur free.

The application of the method according to the invention to the treatment of a petroleum residue will now be described given.

example

Removal of sodium and vanadium from a petroleum residue, which by stripping 47% volatiles obtained from a Kuwait oil.

Operating conditions

Starting oil Kuwait 53 volume percent residue space velocity IV / V / hour

Temperature '. 416 ⁰ C

Pressure 70 at

recirculated amount of hydrogen 720 m ³ / m ³

Direction of flow upwards

Operating time 50 hours

Results achieved

Coarse-grained Treated oil Fuller's earth Total quantity, Starting oil while 50 hours 41.0 obtain Vanadium, mg / kg .. 39.0 27.0 Sodium, mg / kg ... 33.0 Sulfur, weight 3.89 percent 3.24 Specific weight, 0.958 I5.56 / I5.56 ^O 0.940

Claims (1)

PATENT CLAIM: Process for removing sodium and vanadium from crude petroleum or petroleum products by treating crude petroleum or petroleum products with bauxite in the presence of hydrogen ^{at temperatures between 371 and 427 0} , preferably at 415 °, and temperatures between 57 and 71 kg / cm ² , preferably at 71 kg / cm ² , with sodium and vanadium being retained by the bauxite, according to Patent 970 697, characterized in that instead of bauxite, treatment is carried out with a contact material consisting of fuller's earth and the treated oil optionally then a hydrogenation zone supplies organically bound sulfur to remove. © 609 616 / 439-8.56 (909 504/13 4.59)