The production of a continuing process for supercritical plastic extruder fluids is desirable for high-pressure technology. In a prior study, it had been revealed that a twin-screw extruder was applicable as the reactor and feeder for commercial supercritical fluid processes. The advantages of twin-screw extruders include their conveying capability and flexibility of style, which make them ideal for exploration on the applications of extruder. However, twin-screw extruders are costly because of their complicated gearbox, cylinder shape, screw, etc. Here we report that a single-screw extruder, which is less expensive and simpler when compared to a twin-screw extruder, is also applicable because the reactor and feeder for professional supercritical fluid processes. Furthermore, the gear for a single-screw extruder is certainly smaller sized than that of a twin-screw extruder. The benefits of this analysis will promote the use of extruders in supercritical fluid engineering research and donate to the industrialization of an array of supercritical fluid techniques.
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