检索结果-南通市图书馆

STUDIES ON CATALYST POISONING DEACTIVATION MODEL IN FIXED BED

Journal of Energy Chemistry 1995年第1期 97-105页

作者： LIU Zhao-Tie ZHOU Jing-Lai ZHANG Bi-JiangInstitute of Coal Chemistry, Acaderma Sinica Taiyuan, Shanxi 030001 To whom correspondence should be addressed.

Four major deactivation types of catalyst particles, namely parallel, series, side-by-side and independent deactivation were discussed. The effects of distribution of poison along the fixed bed were examined for a number of poisoning equations in detail, which have a simple type of deactivationequations as -da/dt ∝ad, where d is the deactivation order, and a is the activityof fresh catalyst.

关键词： catalyst deactivation deactivation rate equation fixed bed relative activity catalyst poisoning

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Geotechnical Characterization of Termite Mound Soils of Congo

引用

Open Journal of Civil Engineering 2022年第3期12卷 370-389页

作者： Louis Ahouet Mondésire Odilon Ngoulou Sylvain Ndinga Okina Sorel Dzaba Higher Institute of Architecture Urbanism Building and Public Works Denis Sassou Nguesso University Brazzaville Congo Laboratory of Materials and Energies (LME) Faculty of Sciences and Technics Marien Ngouabi University Brazzaville Congo Higher Polytechnic National School (ENSP) Marien Ngouabi University Brazzaville Congo Building and Publics Works Control Office (BCBTP) Brazzaville Congo

This study is to determine the activities and correlations in the fundamental properties of the termite mounds soils Cubitermes spp and Macrotermes sp. The Intrinsic properties depend on the mineralogy, organic composition and texture of soil. Grain size, Atterberg limits and soil blue values are geotechnical properties that were used to characterize the two soils. On the basis of the geotechnical properties, specific surface area, cation exchange capacity, relative activity, surface activity and soil activity were determined. The correlations obtained in the intrinsic soil properties are linear and polynomial fits. Indeed, the relationship between the plasticity index and the blue value of a soil on the one hand and between the specific surface area and the cation exchange capacity on the other hand, is a linear fit for all soils in general. The relationship between plasticity index and specific surface area is a linear fit for the soils (C, M). Correlations in intrinsic soil properties that have a coefficient of determination close to 1 can be used in geotechnical engineering to predict one of the two desired parameters.

关键词： activity relative activity Surface activity Cation Exchange Capacity Specific Surface Termite Mound Soil

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

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：