Abstract:

The static scale method has been used for testing the performances of three kinds of scale inhibitors (PASP,PESA,MA/AA). The temperature and scale inhibition concentrations,as well as the kinetics and optimum activating temperature of the three kinds of scale inhibitors are investigated. The results indicate that the scale inhibiting rates of PASP and PESA are higher scale inhibiting rates on calcium carbonate scale at the temperatures of 70 ℃ and 75 ℃,respectively. However,the scale inhibiting effect of MA/AA is much higher than that of PASP and PESA. Dose-effect exists in the solution of MA/AA. According to the kinetics research and cage effect of the three kinds of scale inhibitors,the PASP and PESA are diffusion controlled,and MA/AA is activation controlled.

Key words: scale inhibition, scale inhibition mechanism, kinetic

摘要：

用静态阻垢法对聚天冬氨酸(PASP)、聚环氧琥珀酸(PESA)、马来酸/丙烯酸共聚物(MA/AA)的阻垢性能进行测试,对温度和浓度以及3种阻垢剂的动力学和最佳活化温度进行研究。研究结果表明:PASP、PESA分别在70、75 ℃对碳酸钙垢具有较高的阻垢率,但MA/AA的阻垢效果远大于PASP、PESA,MA/AA存在剂量效应。从3种阻垢剂的动力学研究和笼蔽效应来看,PASP和PESA为扩散控制,而MA/AA为活化控制。

关键词: 阻垢剂, 阻垢机理, 动力学

CLC Number: 

• X703.1