微波辐照下炭材料升温特性试验研究  

Heating characteristics of carbon-based materials under microwave irradiation

作　　者：姜晓威[1] 王会刚[1] 李龙之[1] 闫雨昆 

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《洁净煤技术》2017年第5期62-66,共5页Clean Coal Technology

基　　金：山东省优秀中青年科学家科研奖励基金资助项目(BS2014NJ014);青岛市应用基础研究计划资助项目(15-9-1-34-jch)

摘　　要：为研究微波功率、活性炭粒径、载气流速对活性炭升温规律的影响,利用微波加热综合试验平台进行活性炭微波加热升温试验,研究了不同因素下活性炭的升温特性。结果表明:相同前提下,随着微波功率的增大,2种活性炭(木质活性炭、煤质活性炭)的升温速率不断加快,最高温度随之提高,微波功率从240~400 W时,木质活性炭在10~16 min平均温度增幅达93℃,明显大于煤质活性炭;增加粒径导致木质活性炭达到的最终温度有所降低,且升温速率减小;提高载气流速可减缓木质活性炭的升温速率并降低其最高温度。获取最高活性炭温度的最佳试验工况为微波功率P为400 W、活性炭粒径d≤1 mm、载气流速Q为60 L/h。To study the effect of microwave power, particle size and carrier gas flow rate on temperature-rising behavior of activated carbon, the heating experiments of activated carbon are conducted using microwave heater. The results reveal that the heating rate of wooden activated carbon and coal-based activated carbon increases with the increase of microwave power. The highest temperature is also improved as microwave power rise. When the power increases from 240 W to 400 W, the average temperature obtained by wooden activated carbon has a rise up to 93℃ at the period of 10-16 min. Such difference in wooden activated carbon is significantly greater than that in coal- based activated carbon. Increasing particle size of wooden activated carbon results in a decrease in the beating rate and final temperature. Further, heating rate and the maximum temperature are slowed down with increasing the carrier gas flow rate. The favorable conditions for temperature-rising of activated carbon with microwave heating are microwave power of 400 W, activated carbon particle size of ≤1 mm and carrier gas flow rate of 60 L/h.

关 键 词：炭材料 微波 升温特性 粒径 

分 类 号：TK01[动力工程及工程热物理]