检索结果-南通市图书馆

Reduction of VOC emissions by a membrane-based gas absorption process

Journal of Environmental Sciences 2009年第8期21卷 1096-1102页

作者： LI Rui, XU Jun, WANG Lianjun, LI Jiansheng, SUN Xiuyun School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. [a]School of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 China. E-mail: drbeaneyes@***

A membrane-based gas absorption （MGA） process was evaluated for the removal of volatile organic compounds （vocs） based on C6H6/N2 mixture. The absorption of C6H6 from a C6H6/N2 mixture was investigated using a hydrophobic polypropylene hollow fiber membrane contactor and the aqueous solution of N-formyl morpholine （NFM） as absorbent. The effects of various factors on the overall mass transfer coefficient was investigated. The experimental results showed that the removal efficiency of C6H6 could reach 99.5% in present studied system. A mathematical model based on resistance-in-series concept was presented to predict the value of overall mass transfer coefficient. The average error between the predicted and experimental values is 7.9%. In addition, conventional packed columns for vocs removal was also evaluated for comparison.

关键词： vocs removal membrane contactor membrane-based gas absorption mass transfer model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Adsorption and Regeneration of Volatile Organic Compounds(vocs)on Coal-Based Activated Carbon by Ferric Nitrate Modification

引用

China Petroleum Processing & Petrochemical Technology 2021年第3期23卷 137-150页

作者： Jin Chunjiang Chen Huimin Wang Luyuan Cheng Xingxing Sun Rongfeng Energy Research Institute of Shandong Academy of Sciences Qilu University of Technology(Shandong Academy of Sciences)Jinan 250014 School of Energy and Power Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250014 Changji University Changji 831100 School of Energy and Power Engineering Shandong UniversityJinan 250061

In this study,the Heishan coal was used to prepare a series of activated carbon(AC)samples via a vapor deposition *** effects of the Fe(NO_(3))3/coal weight ratio on the physicochemical properties of the activated carbon were systematically investigated,and the AC samples were analyzed by the N2 adsorption-desorption technique,the scanning electron microscopy,the X-ray diffraction,the Raman spectroscopy,and the Fourier transform infrared ***,the adsorption properties of ethyl acetate were *** results indicated that as the Fe(NO_(3))3/coal mass ratio increased from 1:8 to 1:2,the specific surface area,the total pore volume and the micropore volume initially increased and then *** specific surface area increased from 560.86 m^(2)/g to 685.90 m^(2)/g,and then decreased to 299.56 m^(2)/*** total pore volume and micropore volume increased from 0.29 cm^(3)/g and 0.17 cm^(3)/g to 0.30 cm^(3)/g and 0.22 cm^(3)/g,and then decreased to 0.16 cm^(3)/g and 0.10 cm^(3)/g,*** optimized ratio was 1:*** the activation process,iron ions infiltrated the activated carbon to promote the development of the pore structure,the pore size of which was between 2.5 nm and 3 nm in *** approach could enhance the capacity for adsorption of ethyl *** is worth noting that the ACs displaying the largest specific surface area and total pore volume(685.90 m^(2)/g and 0.30 cm^(3)/g)were formed under the optimized activation conditions(950℃,20%(volume)of CO_(2),ratio 1:5),and the maximum AC capacity for adsorption of ethyl acetate was 962.62 mg/*** seven repeated thermal regeneration experiments,the saturated AC adsorption capacity was still above 90%.

关键词： coal-based activated carbon vocs removal adsorption regeneration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：