De-oiled asphalt (DOA) was obtained from a supercritical solvent deasphalting device using vacuum residuum of Liaohe heavy crude as feed and it was manufactured to particles by PGSS process directly.

• 摘要 在超临界溶剂脱沥青装置上，以辽河稠油减压渣油为原料，得到脱沥青油的同时，用PGSS法直接对脱油沥青进行造粒实验。