| 摘要 |
<p>The present invention relates to the application based on alkyl acrylate homopolymers, such as antifoaming agents in crude oils with densities of 10 to 40 DEG API. Evaluation tests in "live" crude oil, under similar gas-liquid separation equipment conditions, showed that these polymers based on alkyl acrylate are effective foaming inhibitors in heavy and super-heavy crude oils, reducing the foam between 15 and 50 % faster compared to crude oil without dosing (blank). ). Even some acrylics showed better performance than commercial silicon-based polymers, which suppress foam 20-25 % faster than the blank. Silicones, because of the presence of silicon, present problems such as catalyst deactivation and the formation of deposits in subsequent stages of the refining process. This situation has had the consequence that, nowadays, the refineries in Mexico and elsewhere all over the world modify or forbid the application of these inorganic polymers and they have required new antifoaming agent s with low silicon content or even totally free in composition of this element. Therefore, new antifoaming agents object of this invention, based on alkyl acrylate and totally free of silicon, is an advantageous option, to replace the silicone-based foam inhibitors currently on the market.</p> |
