检索结果-南通市图书馆

Extend ethylene aromatization single-event kinetic modeling with physical and chemical descriptor based on ZSM-5 catalyst

引用

Petroleum Science 2023年第6期20卷 3841-3853页

作者： Jia-Rong Xie Fang Jin School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan430205HubeiChina Key Laboratory for Green Chemical Process of Ministry of Education Wuhan Institute of TechnologyWuhan430205HubeiChina Novel Reactor&Green Chemical Technology Key Laboratory Wuhan Institute of TechnologyWuhan430205HubeiChina

The ethylene aromatization is critical for the methanol to aromatics and light alkane dehydroaromatization *** single-event microkinetic(SEMK)model combining the linear free energy theory and solid acid distribution concept were established and extend for the ethylene aromatization process,which can reduce the kinetic parameters and simplify the reaction network by comparison with the SEMK model including subtype elementary steps based on the type of carbenium *** introducing deactivation parametersφinto the model and applying the linear free energy model to the deactivation experimental data,the obtained deactivation parametersφindicate that the carbon deposition precursors have the greatest impact on reducing the reaction rate of single-molecular reactions and the smallest impact on the hydrogen transfer ***,according to the change of reaction enthalpy,effect of carbenium ion structure on methylation,ethylation,cyclization and endo-βscission was investigated by introducing linear free energy concept into the SEMK *** effect of different acid strengths on elementary steps was investigated based on the acid strength distribution model,it was found that the methylation and oligomerization reactions,the ali-βscission reaction,endo-βscission reaction and the cyclization reaction were more sensitive to strong acidity *** physisorption and chemisorption heat are separated from the protonation heat in the linear free energy kinetic model and the acid strength distribution kinetic model,and the absolute values of the obtained physisorption and chemisorption heat increase with the carbon number of carbenium ***,the parameters of the acid strength distribution kinetic model were applied to propane dehydroaromatization on H-ZSM-5 and the ethane dehydroaromatization on Zn/ZSM-5 to confirm the independence of parameters in the SEMK model with the similar reaction network.

关键词： Kinetic model Ethylene aromatization acid strength distribution Linear free energy theory

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

n-BUTANE ISOMERIZATION ON Al-PROMOTED SULFATED ZIRCONIA CATALYSTS

引用

Chinese Journal of Catalysis 1998年第2期 4-5页

作者： Xia Yongde, Hua Weiming, Miao Changxi, Gao Zi**(Department of Chemistry, Fudan University, Shanghai 200433)

ｎＢＵＴＡＮＥＩＳＯＭＥＲＩＺＡＴＩＯＮＯＮＡｌＰＲＯＭＯＴＥＤＳＵＬＦＡＴＥＤＺＩＲＣＯＮＩＡＣＡＴＡＬＹＳＴＳＸｉａＹｏｎｇｄｅ，ＨｕａＷｅｉｍｉｎｇ，ＭｉａｏＣｈａｎｇｘｉ，ＧａｏＺｉ（Ｄｅｐａｒｔｍ... 详细信息

ｎＢＵＴＡＮＥＩＳＯＭＥＲＩＺＡＴＩＯＮＯＮＡｌＰＲＯＭＯＴＥＤＳＵＬＦＡＴＥＤＺＩＲＣＯＮＩＡＣＡＴＡＬＹＳＴＳＸｉａＹｏｎｇｄｅ，ＨｕａＷｅｉｍｉｎｇ，ＭｉａｏＣｈａｎｇｘｉ，ＧａｏＺｉ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，Ｆｕ...

关键词： Butane Isomerization Sulfuric acid Alumina Zirconia acid strength distribution

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

n -BUTANE ISOMERIZATION OVER PERSULFATE MODIFIED Al2O3 ZrO2 CATALYSTS

引用

Chinese Journal of Catalysis 1999年第5期20卷 487-488页

作者： Xia Yongde, Hua Weiming, Gao Zi (Department of Chemistry, Fudan University, Shanghai 200433) 复旦大学化学系上海 200433

The conversion of n-butane to isobutane over strong acid catalysts is an important process in the petrochemical refining industry, because isobutane is a valuable precursor to methyl-tert-butyl ether and other fuel additives. Many reports dealing with sulfate promoted zirconia as catalysts for n-butane isomerization have appeared[1, 2].

关键词： ywords n butane isomerization persulfated zirconia alumina acid strength distribution

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

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

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

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：