摘要
果品与蔬菜在采后贮藏过程中所产生和释放的乙烯是加速成熟、衰老和腐烂的重要环境因子。该研究采用纳米光催化技术开发设计了一种可以去除气调库中乙烯的玻璃管光催化反应器，并对其主要性能参数进行了模拟测试与分析。结果表明：气体流量、玻璃臀点径与长度以及光源种类均是影响光催化反应器乙烯分解性能的主要因素。在该试验条件下，气体流量在40～80L／h的范围内较佳；玻璃管的适宜内径为50mm；在相同功率条件下黑光灯的光催化效果优于紫光灯。光催化反应器可以多级串联使用，以便提高系统的乙烯分解能力。这些研究结果为气调库用光催化乙烯分解装置设计提供了基础设计参数和指标。
A new type of glass-tub nanophotocatalytic reactor was designed for controled-atmosphere （CA） storage to decompose and remove ethylene gas efficiently. The key design parameters of the reactor model were simulated and analyzed through experiment. The results show that the ethylene-removing efficiency of photocatalytic reac- tor mainly depends on the flow rate of gas, the diameter and length of the glass tube and the radiation resource. The favorite conditions keeping photocatalytic reactor in higher efficiency state in this experiment were shown as follows： the flow rate of gas was in the range of 40～80 L/h; the diameter of glass tube was about 50 mm; black light lamp was better than the purple UV lamp; and two same glass pipes in series were better than the single one. The experimental results provided some important basic parameters for the design of high-efficiency ethylene decomposition equipment for CA storage.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2006年第9期124-127,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
中国农业科学院杰出人才基金项目
关键词
乙烯分解
光催化反应器
纳米
模型
气调储藏
ethylene decomposition
photocatalytic reactor
nanometer
model
controled atmosphere storage
