基于泡沫金属的活性炭吸附油气实验.pdf

石油学报(石油加工)
2011年12月
ACTA PETROLEI SINICA (PETROLEUM PROCESSING SECTION)
第27卷第6期
文章编号:1001-8719(2011)06-0972-05
基于泡沫金属的活性炭吸附油气实验
黄维秋,沈泳涛,吕艳丽,白娟,赵书华
(常州大学油气储运技术省重点实验室,江苏常州213016)
摘要:为了降低传统的活性炭吸附油气的热效应,在吸附塔中引入泡沫金属材料。将活性炭粉末填入泡沫金属中制
成复合吸附材料,再用它来填充吸附塔。理论计算得到该复合吸附材料的导热系数为1.72W/(m?K),远远高于
活性炭本身的导热系数(0.185W/(m,K));在水浴和空气环境中进行的吸附汽油蒸气实验证明,复合吸附材料对
吸附热有一定的降低作用。该复合吸附材料有较好的导热性能,而且在降低吸附温度的同时,相应地也可以适当提
高活性炭的有效吸附容量
关键词:油气回收;吸附;泡沫金属;活性炭
中图分类号:TE99;X51文献标识码:Adoi:10.3969/j.issn.1001-8719.2011.06.022
Investigation of Gasoline Vapor Adsorption by Activated Carbon Filled Into Foamed Metal
HUANG Weiqiu, SHEN Yongtao, LU Yanli, BAI Juan, ZHAO Shuhua
(Jiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology, Chang hou University, Changzhou 213016, China
Abstract: In order to reduce the obvious heating effect in activated carbon adsorption for gasoline
vapor, a foamed metal was brought into the adsorption tower. The foamed metal was firstly filled
with activated carbon powder to form a composite adsorption material, and then filled into the
adsorption tower. By theoretical calculation, the heat conduction coefficient of the composite
material is 11. 72 W/(m. K), which is much higher than that of activated carbon(0. 185 W/(m. K))
The adsorption experiments either in the atmosphere or in a constant temperature water bath
showed that the composite adsorption material performed well in reducing heating effect. The
composite adsorption material has good heat-conducting propertics, and while reducing the
adsorption temperature it also accordingly improved effective adsorption capacity of activated carbon
appropriately.
Key words: gasoline vapor recovery; adsorption; foamed metal; activated carbon
吸附分离技术作为ー种古老而重要的分离方法,由于我国汽油高含烯烃和硫等杂质,在高吸附热下
在油气回收中得到广泛重视。这种回收方法主要利易引发一系列危害,吸附热效应问题是一个亟待解
用高效活性炭作为吸附剂。吸附热效应是活性炭吸决的课题。泡沫金属因其密度小、刚度大、比表面
附高浓度油气时很突出的问题,比如活性炭吸附床积大等特点,使其具有质轻、吸音、隔热(闭孔)、
温度可高达60~80C,而且油气浓度越高吸附热效散热(开孔)、高比强度等多功能复合材料特性,在
应就越明显-2?。活性炭的导热系数接近保温材料,制冷、航天、军事等领域得到广泛的应用3。因
这使得吸附热很难及时传出,吸附床层温度剧升。此,笔者针对泡沫金属在降低吸附热效果等方面进
收稿日期:2010-11-04
甚金项目:江苏省高校自然科学研究重大项目(11KJA610002)和江苏省社会发展科技支撑计划项目(B-2011651)资助
通讯联系人:黄维秋,男,教授,博士,主要从事油气污染控制研究;Tel:0519-83290280; E mail: hwa213@cczu.edu,cn