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Polymeric imides as pour point depressant additives for oil compositions

a technology of imides and oil compositions, applied in the field of polymer imides, can solve problems such as difficulties in transporting fuel through lines and pumps, and achieve the effect of improving the low temperature flow properties of compositions

Inactive Publication Date: 2007-07-26
AKZO NOBEL NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is about an oil composition that has improved low temperature properties. It includes oil and a special additive that helps to lower the temperature at which the oil solidifies. This additive is made up of a specific chemical formula. The invention also includes a method for improving the low temperature flow properties of oil by adding this special additive."

Problems solved by technology

As the temperature of the fuel falls and approaches the pour point, difficulties arise in transporting the fuel through lines and pumps.

Method used

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  • Polymeric imides as pour point depressant additives for oil compositions
  • Polymeric imides as pour point depressant additives for oil compositions
  • Polymeric imides as pour point depressant additives for oil compositions

Examples

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Effect test

example 1

[0072] Aromatic 150 (about 25% by weight of the product), C-20-24 Alpha Olefin (1.0 mole), and Maleic Anhydride (1.15 moles) are stirred in a flask equipped with an inert nitrogen subsurface sparge to eliminate air from the product and overhead and set for total reflux. The mixture is heated to 130° C. and then tert-butyl peroxybenzoate (0.02 moles) is slowly added continuously over a two to three hour period while maintaining the temperature at 130° C. and then allowed to react in for an additional hour. The flask is then set to collect distillate and the premelted tallowamine (1.15 moles) is then added to the mixture allowing the exotherm along with external heating to hold the product at 130-150° C. for 2 hours. Water will be collected as the imide is formed during this step. The resulting product was tested as a potential wax crystalline modifier against our current product (PC-105) used for this application. The pour point test results (attached) show that the experimental prod...

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Abstract

The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric imides for use with such fuel oil compositions, and to methods for their manufacture.

Description

[0001] This is a continuation-in-part of U.S. application Ser. No. 11 / 547349, which is based on International application number PCT / EP2005 / 003638 filed on Apr. 5, 2005.FIELD OF THE INVENTION [0002] The present invention generally relates to polymeric imides useful as pour point depressants and their use in providing oils with improved low temperature flow properties. BACKGROUND OF THE INVENTION [0003] The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric imides for use with such fuel oil compositions, and to methods for their manufacture. [0004] Fuel oils and / or petroleum products, whether derived from petroleum or vegetable sources, contain components, e.g., paraffins, alkanes, etc. that at low temperature tend to precipitate as large crystals or spherulites of wax in such a way as to form a gel structure which causes the oil to lose its abilit...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10M169/04C10L1/224C10L1/236C10M133/16C10M149/06
CPCC10L1/224C10L1/2364C10L10/14C10L10/16C10M149/06C10M2203/1006C10L1/232C10M2207/2805C10M2207/401C10N2230/08C10M2205/028C10M2209/086C10N2260/09C10N2030/08C10N2060/09C10L1/22C10M133/16
Inventor MEAD, STEPHENCRAVEY, RODNEYRAHMAN, MOHAMMAD
Owner AKZO NOBEL NV