| 摘要 |
A process and apparatus for cooling and solidifying a stream of heavy hydrocarbon material normally boiling above about 850 DEG F., such as vacuum bottoms material from a coal liquefaction process. The hydrocarbon stream is dropped into a liquid bath, preferably water, which contains a screw conveyor device and the stream is rapidly cooled, solidified and broken therein to form discrete elongated particles. The solid extrudates or prills are then dried separately to remove substantially all surface moisture, and passed to further usage. |
