Preparation Of High Performance Lubricant Base Oil From 1-C₁₀/1-C₁₄ Oligomerization

Oligomerized a-olefins synthetic oil has broad development trend and the prospect of the research in the oil market.Generally,during the preparation of PAO with the increase of the number of carbon atoms into olefin,the products of higher viscosity,viscosity index increases,the less volatile,but also pour point will increase.Methods and ways to solve this problem is to use mixed olefin oligomerization for preparing high performance PAO base oil.In this paper,AlCl₃ is used as a catalyzed for oligomerization,and the PAO base oil is prepares by the mixture of decene and tetradecene oligomerize reaction.Through a large number of literature research,4h as reaction time,the amount of catalyst is 5%.The effects of the reaction temperature（25 ℃,50 ℃）,raw materials of different mixing ratio on the properties of oligomers（υ40℃,υ100℃,VI,pour point）.The products are characterized by simulated distillation、nuclear magnetic resonance hydrogen spectrum and carbon spectrum.According to National standard of test methods to petroleum and petroleum products for determination of viscosity,viscosity index and pour point.To discuss the mechanism with molcecular structure of 1-decene and 1-tetradecene oligomer and olefin oligomerization.According to the different requirements,to 1-decene,1-tetradecene is spectroscopy,for the purpose of synthesis of low pour point,medium viscosity,high viscosity index of the high-performance PAO base oil.And give priority to with 1-tetradecene,with 1-decene is complementary,the purpose for the synthesis of high temperature resistant,low volatility,medium viscosity,high viscosity index,moderate pour point of the high-performance PAO base oil.By using the orthogonal experiment method of（temperature、time、molar ratio of materials）,the optimal reaction condition was established.The conditional results show that using AlCl₃ as catalyst in the reaction,decene and tetradecene olefin oligomerization : medium viscosity 100℃（12.02²8.01mm2/s）,high viscosity index（VI=123¹75）;low pour point（PP=-25^-58℃）.The results of orthogonal test show that: 1,the raw materials to 1-decene-based,1-C₁₄ ethyl supplementation Conclusion:（1）,The reaction temperarure is the most influential factor affecting the yield,and the ratio of 1-C₁₄ is the least important factor affecting the yield.The reaction temperature is 75 ℃ and reaction time is 6h and the ratio of 1-C₁₄ is 10% is the optimal reaction conditions the yield.（2）,The reaction time is the most important factor affecting the viscosity of 100 ℃ and the reaction temperature is the least important factor affecting the viscosity of 100 ℃.The reaction temperature is 75℃ and reaction time is 9h and the ratio of 1-C₁₄ is 15% is the optimal reaction conditions the visicosity of 100 ℃.（3）,The reaction temperarure is the most important fator affecting viscosity index and the ratio of1-C₁₄ is the least important fator affecting viscosity index.The reaction temperature is 50 ℃and the reaction time for 3h and the ratio of 1-C₁₄ is 15% is the optimal reation conditions the viscosity index.（4）,The ratio of 1-C₁₄ is the most important factor affecting pourpoint and the reaction time is the least importanton factor affecting the pour point.The reaction temperature is 75 ℃ and reaction time is 3h and the ratio of 1-C₁₄ is 5% is the optimal reaction conditions the pourpoint.（5）,The average level and the difference of the different mean values ??and the difference under each index are the best technological conditions:the reaction temperature（reaction temperature）75 ° C),reaction time（6 h）,1-C₁₄ ene ratio（15%）,give priority to with 1-tetradecene,1-decene is complementary :（1）,The ratio of 1-C10 is the most important factor affecting the yield and the reaction temperarure is the least important factor affecting the yield.The reaction temperature is 75 ℃ and reaction time is 6h and the ratio of 1-C10 is 10% is the optimal reaction conditions the yield.（2）,The reaction temperature is the most important factor affecting the viscosity of 100 ℃ and the ratio of1-C10 is the least important factor affecting the viscosity of 100 ℃.The reaction temperature is 25℃ and reaction time is 3h and the ratio of 1-C10 is 15% is the optimal reaction conditions the viscosity of 100 ℃.（3）,The reaction temperature is the most important factor affecting the viscosity index and the ratio of 1-C10 is the least important factor affecting the viscosity index.The reaction temperature is 25 ℃ and the reaction time is 9h and the ratio of 1-C10 is10% is the optimal reaction conditions the viscosity index（4）,The reaction temperature is the most important factor affecting the pour point and the reaction time is the least important factoron the pour point.The reaction temperature is 75 ℃ and reaction time is 6h and the ratio of 1-C10 is 10%id the optimal reaction conditions the pourpoint.（5）,under the different levels of the average and the difference between the average consideration The optimum conditions were as follows: reaction temperature（25 ℃）,reaction time（6h）,adding 1-C10 ratio（10%）.