In order to explore the new utilization of vacuum membrane distillation with fiber membrane modules in the drying field

a vacuum membrane distillation-superheated steam drying system was designed

and the changing rule of the system of membrane flux and thermal efficiency were analyzed

and the drying quality of pod pepper seeds was investigated to explore the application scenarios of the new drying process. The results show that the heat and mass transfer performance of the new drying system is similar to that of the vacuum membrane module. With the increase in feed temperature

the steam output of the system also increases with the growth rate

while the thermal efficiency increases with the growth rate. the steam flow is 41 m3/h

and the thermal efficiency is 90.6% at 70 ℃

which is 3.53% higher than that of hot air drying at 50 ℃ .The control of superheat for low-pressure superheated steam is explored

and future application prospects and research findings are discussed.