CAJ | 학술논문

利用HAKKE VT550旋转黏度计对罐底油泥的黏度特性进行了研究，筛选出合适的黏度模型，分析比较了加热（20～60℃）、添加表面活性剂（曲拉通X-100）水溶液（质量分数为0.5%）和添加溶剂（正戊醇和120#溶剂油）对油泥黏度的影响。结果表明，由于罐底油泥包含大量固体颗粒，在0～600 s?1剪切速率范围内，具有塑性流体和假塑性流体的双重特性，Casson模型为最适合的黏度模型，拟合决定系数为0.986。在3种降黏措施中，将样品加热至50℃与20℃下添加质量分数为10%的表面活性剂水溶液均可使油泥黏度下降50%，样品流型向假塑型转变。掺入溶剂的降黏效果优于前两者，最佳效果为在20℃、300 s?1剪速下，添加质量分数为10%的120#溶剂油，黏度下降达90%，样品流型向牛顿型转变。
이용HAKKE VT550선전점도계대관저유니적점도특성진행료연구，사선출합괄적점도모형，분석비교료가열（20～60℃）、첨가표면활성제（곡랍통X-100）수용액（질량분수위0.5%）화첨가용제（정무순화120#용제유）대유니점도적영향。결과표명，유우관저유니포함대량고체과립，재0～600 s?1전절속솔범위내，구유소성류체화가소성류체적쌍중특성，Casson모형위최괄합적점도모형，의합결정계수위0.986。재3충강점조시중，장양품가열지50℃여20℃하첨가질량분수위10%적표면활성제수용액균가사유니점도하강50%，양품류형향가소형전변。참입용제적강점효과우우전량자，최가효과위재20℃、300 s?1전속하，첨가질량분수위10%적120#용제유，점도하강체90%，양품류형향우돈형전변。
The viscosity properties of oil sludge from tank bottom and different methods for its viscosity reduction were investigated using HAKKE VT550 rotational viscometer. The viscosity reduction methods included heating range of 20—60℃, adding surfactant Triton X-100 aqueous solution with the concentration of 0.5% (by mass), and adding the organic solvents of 1-pentanol and 120# solvent oil. The results indicated that the oil sludge exhibited the characteristics of both plastic fluid and pseudo-plastic fluid in the range of 0—600 s?1 for the examined shear rate. The significant shear-thinning behavior can be attributed to the high content of solid particles in the oil sludge. The modeling analysis showed that the Casson model fitted well with the viscosity characteristic curve of the oil sludge with the highest determination coefficientR2=0.986. In comparison with heating to 50℃, the similar viscosity reduction performance can be achieved by adding 10% Triton X-100 solution (by mass) at 20℃ with the viscosity reduction of 50%. The rheological properties of sludge had a tendency to pseudo-plastic fluid behavior. Better performance can be achieved by blending the sludge with a certain amount of organic solvent. When 10% of 120# solvent oil was added to the sample at 20℃ and 300 s?1, the viscosity was reduced by 90% owing to the spatial structure of both the oil and the solid phase was destroyed. The sludge gradually exhibited Newtonian flow behavior.