介绍了20t/a规模的双戊烯连续气相催化脱氢反应中试装置的研制,涉及工艺流程、设备流程、关键设备等研究,重点探讨了预热器、气化器和反应器等关键设备的设计,细化研究了气化器中普通喷头和超声波喷头的结构与性能,并开展了中试装置实际运行试验,对伞花烃的收率为92.65%～97.09%(普通喷头/260～280℃)和97.04%～98.16%(超声波喷头/260～280℃)。 This paper introduced the pilot plant of 20t / a scale dipentene continuous gas phase catalytic dehydrogenation pilot plant, which involved the research of process flow, equipment flow and key equipment. The key equipments such as preheater, gasifier and reactor were discussed emphatically The structure and performance of the common nozzle and the ultrasonic nozzle in the gasifier were studied in detail. The actual operation of the pilot plant was tested. The yield of the paracyme was 92.65% ~ 97.09% (normal nozzle / 260 ~ 280 ℃) and 97.04% ~ 98.16% (ultrasonic spray head / 260 ~ 280 ℃).