Speed up the absorption of viscous crude oil spill by Joule-heated sorbent design

Although ocean crude-oil spill accidents did not frequently happened in the past, it really caused great damage to the ma- rine ecosystem once it happened. Because of the spreading and weathering, crude-oil spill usually covers a large area of water surface and its viscosity is very high, which brings hu- man great trouble to clean it up. Dispersant and in-situ burn- ing were frequently used in the past crude-oil spill accidents, but these two methods suffered from the drawbacks includ- ing being toxic to marine lives, causing air pollution, disabil- ity of recovering the crude oil. Oil skimmers could recovery the oils, but their handling capacities are rather limited. Re- cently, porous hydrophobic and oleophilic materials （PHOM） have been demonstrated as low-cost, efficient and ecofriendly materials for the oil spill cleanup [ 1 ]. Nevertheless, their poor absorption speed to viscous oil spill hinders their practical ap- plication.

复配型高粘原油降粘降凝剂

高粘原油降粘剂是由丙烯酸二十二酯、马来酸酐、苯乙烯三元共聚物与非离子表面活性剂按一定的质量比复配成的产物。讨论了聚合物中的各组分的用量比 ,共聚物与表面活性剂的配比对降粘效果的影响 ,并测试了在 50℃ ,剪切速率 1 0 0 s- 1 条件时粘度为 550 0 MPa·s的高粘原油 ,加剂量为 0 .4 %时 ,原油凝点下降 1 4℃ ,粘度下降了 63 .6%。