糠醛抽出油制取驱油用表面活性剂的研究

以大庆炼油厂减二线糠醛抽出油为原料，发烟硫酸为磺化剂，在釜式磺化反应器中制备了一种石油磺酸盐表面活性剂，考察了合成条件对产品收率及表面活性的影响。结果表明，在酸油质量比为0．4：1，反应温度60℃，磺化时间45min的最佳合成工艺条件下，石油磺酸盐表面活性剂的收率为46．2％，产品活性物含量48．2％；石油磺酸盐溶液浓度在1mmol／L时油水界面张力31．5mN／m，临界胶束浓度1．7×10^-3mmol／L；与碳酸钠复配后，界面张力可降低至10^-3mN／m，适合用作三次采油用驱油表面活性剂。

Preparation of Surfactant for Oil Displacement from Furfural Extract Oil

A petroleum sulphonate（ PS ）was prepared in an autoclave sulphonation reactor using HIV -200 furfural extract oil of Daqing Refinery as feedstock and Oleum（ 120% ） as sulphonation agent. The effects of synthesis conditions on product yield and surface activity were examined. The results showed that the PS yield was 46.2% with 48.2% active components in the product under the best synthesis conditions as follows： mass ratio of acid to oil 0.4： 1, reaction temperature 60 ℃, sulphonation time 45 minutes. When the concentration of petroleum sulfonate solution was 1 mmol/L, the oil-water interracial tension was 31.5 mN/m and CMC was 1.7 × 10 ^-3 mmol/L. When it was compounded with sodium carbonate, the interfacial tension could decrease to 10^-3 mN/re,meeting the requirements of oil-displacing surfactant.