摘要
焦化柴油通过纯糠醛加助剂精制后,其氧化安定性得到明显提高,但柴油中溶有质量分数为4.0%左右的糠醛,需要分离。采用水洗的方法可以解决这一问题。实验考察了水洗比、水洗次数、水洗温度、水洗时间及静置时间等水洗条件对糠醛分离效果的影响。结果表明,采用水洗的方式可以有效地降低精制焦柴中的糠醛质量分数,达到分离的目的。对水洗效果影响较大的操作条件是水洗比、水洗次数和水洗温度,适宜值分别为0.8(V水/V油)、4次和35℃,而其它条件影响甚微。该方法分离糠醛柴油损失量小,可满足生产要求。水溶液中糠醛的回收技术是成熟的,工业化实施容易。
The coking diesel was refined by furfural solvent added assistant, its stability can be improved rapidly, but 4.0 percent furfural in the diesel must be separated. The problem can be solved by the method of bathing. The experiments examined the influence of different factors such as bathing ratio, bathing times, bathing temperature, bathing time and settling time on the separation of furfural from diesel. The results show that the method can reduce furfural content in the diesel, the most influential factors on the results are bathing ratio, bathing times and bathing temperature, the exact data are 0.8(bathing ratio), 4(bathing times), 35 ℃(bathing temperature ), while the influence of other factors is very weak. This separation method results little loss of diesel, the recall technology of furfural from water aqua is mature. It can fit for industrialization.
出处
《抚顺石油学院学报》
2003年第1期23-25,48,共4页
Journal of Fushun Petroleum Institute
关键词
焦化柴油
糠醛
分离
水洗
Coking diesel
Furfural
Separation
Bathing
