摘要
为了寻求一种高效、经济的分离提纯方法来回收利用工业尾气中的CO,文中开发和研究变压吸附提纯工业尾气中CO技术,并考察了一些参数的影响。结果表明:PU-1吸附剂所需的传质区长度较短,这一动态特性对工业应用是非常有利的;随着吸附压力的升高,吸附时间变化不大,而增大原料气流量致使吸附时间缩短;当均压次数为5次时,产品气CO体积分数可保持在97%以上,可省去置换步骤;实验最佳温度操作范围是318—358 K;原料气CO体积分数在20%—40%变化时,产品气CO体积分数基本保持在95%以上。研究结果为后续的中试和工业化设计提供了可靠的数据。
To find a high-efficiency and economical separation technology for purifying CO from industrial off-gases, pressure swing adsorption technology was developed and studied. The effects of some parameters on CO purification were investigated. The experimental results indicate that the mass transfer zone is short when adsorbing CO by using PU-1 as adsorbent, which is favorable to industrial application. The adsorption time is little affected by increasing adsorption pressure, but is decreased by increasing feed gas flow. When the pressure equalization is five times, the volume fraction of CO in product gas can remain more than 97%, and the purge step may be avoided. The best adsorption temperature range is 318-358 K. When the volume fraction of CO in feed gas is 20%-40%, the volume fraction of CO in product gas can remain more than 95 %. This provides the reliable data for the later pilot-scale and industrialized design.
出处
《化学工程》
CAS
CSCD
北大核心
2009年第5期57-61,共5页
Chemical Engineering(China)
基金
国家863基金资助项目(2004AA649040)
云南省省院省校科技合作重大资助项目(00YT03)
关键词
变压吸附
工业尾气
分离
提纯
CO
pressure swing adsorption
industrial off-gases
separation
purification
CO
