CO4920181A1 - WAX DEPOSITION INHIBITORS FOR OIL CRUDES, METHOD OF OBTAINING SUCH INHIBITORS AND METHOD TO REDUCE THE FORMATION OF WAX IN A CRUDE THAT CONTAINS WAX - Google Patents
WAX DEPOSITION INHIBITORS FOR OIL CRUDES, METHOD OF OBTAINING SUCH INHIBITORS AND METHOD TO REDUCE THE FORMATION OF WAX IN A CRUDE THAT CONTAINS WAXInfo
- Publication number
- CO4920181A1 CO4920181A1 CO97067029A CO97067029A CO4920181A1 CO 4920181 A1 CO4920181 A1 CO 4920181A1 CO 97067029 A CO97067029 A CO 97067029A CO 97067029 A CO97067029 A CO 97067029A CO 4920181 A1 CO4920181 A1 CO 4920181A1
- Authority
- CO
- Colombia
- Prior art keywords
- wax
- inhibitors
- alcohol
- aliphatic
- acid
- Prior art date
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Se describen inhibidores de la deposición de cera para crudosde petróleo consistentes en polímeros de un monómero con unidades estructurales derivadas de al menos un éster (1 ) de un ácido carboxílico alifático con un alcohol alifático, en donde uno de dichos componentes ácido o alcohol es etilénicamente insaturado y el otro componente ácido o alcohol tiene un grupo de cadena larga de 14-40 átomos de carbono, y de un monómero con unidades estructurales derivadas del correspondiente éster (3) con unidades estructurales derivadas de un ácido carboxílico alifático y de un alcohol alifático, en donde uno de dichos componentes ácido o alcohol es etilénicamente insaturado y el otro componente ácido o alcohol tiene un grupo alifático de 1-13 átomos de carbono, de manera que al menos el 30%, con preferencia el 50-90% de dichos grupos alifáticos tienen 15-35 átomos de carbono. Tales polímeros se preparan preferentemente mediante transesterificación. Las mezclas de dichos polímeros y/o de los correspondientes homopolímeros o copolímeros de éster (1) y/o polialquileniminas con cadenas laterales largas, y opcionalmente con aditivos polares monoméricos, se pueden emplear como inhibidores.Petroleum crude wax deposition inhibitors are described consisting of polymers of a monomer with structural units derived from at least one ester (1) of an aliphatic carboxylic acid with an aliphatic alcohol, wherein one of said acid or alcohol components is ethylenically unsaturated and the other acidic component or alcohol has a long chain group of 14-40 carbon atoms, and of a monomer with structural units derived from the corresponding ester (3) with structural units derived from an aliphatic carboxylic acid and an aliphatic alcohol , wherein one of said acid or alcohol components is ethylenically unsaturated and the other acid or alcohol component has an aliphatic group of 1-13 carbon atoms, so that at least 30%, preferably 50-90% of said aliphatic groups have 15-35 carbon atoms. Such polymers are preferably prepared by transesterification. Mixtures of said polymers and / or of the corresponding ester (1) homopolymers or copolymers and / or polyalkyleneimines with long side chains, and optionally with monomeric polar additives, can be used as inhibitors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9623742.5A GB9623742D0 (en) | 1996-11-14 | 1996-11-14 | Inhibitors |
| GBGB9623736.7A GB9623736D0 (en) | 1996-11-14 | 1996-11-14 | Compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CO4920181A1 true CO4920181A1 (en) | 2000-05-29 |
Family
ID=40933918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CO97067029A CO4920181A1 (en) | 1996-11-14 | 1997-11-14 | WAX DEPOSITION INHIBITORS FOR OIL CRUDES, METHOD OF OBTAINING SUCH INHIBITORS AND METHOD TO REDUCE THE FORMATION OF WAX IN A CRUDE THAT CONTAINS WAX |
Country Status (1)
| Country | Link |
|---|---|
| CO (1) | CO4920181A1 (en) |
-
1997
- 1997-11-14 CO CO97067029A patent/CO4920181A1/en unknown
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