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研究了在溶剂脱蜡工艺中采用流化床换热器代替套管结晶器时 ,流化床换热器中流化固体颗粒空隙率及流化固体颗粒大小、换热器传热温差和传热效率与脱蜡效果等因素的关系。试验表明 ,换热器的传热系数较传统的套管结晶器有大幅的提高 (5～ 7倍 ) ;油收率增加 3 %～ 5 % ,蜡收率增加 2 %～ 4% ,蜡含油率可降至 3 %以下 ;工艺简单 ,设备易于维护 ;有较大的经济效益。该试验为进一步的工业试验提供了可靠的基础数据。
In the process of solvent dewaxing, the fluidized bed heat exchanger was used instead of the casing crystallizer. The fluidized bed heat exchanger fluidized solid particle porosity and fluidized solid particle size, heat exchanger temperature difference and heat transfer The relationship between efficiency and dewaxing effect and other factors. Experiments show that the heat transfer coefficient of the heat exchanger is greatly improved (5 ~ 7 times) compared with the conventional casing crystallizer; the oil yield increases by 3% ~ 5%, the wax yield increases by 2% ~ 4% The rate can be reduced to below 3%; process is simple, equipment easy to maintain; have greater economic benefits. This test provides reliable basic data for further industrial tests.