检索结果-南通市图书馆

A comparative study on demineralization of coals by acid-washing and solvent-extraction methods for low temperature catalytic coal gasification application

引用

Carbon Resources Conversion 2019年第3期2卷 175-181页

作者： Atul Sharma Akimitsu Matsumura Research Institute of Energy Frontier Non-conventional Carbon Resources GroupNational Institute of Advanced Industrial Science&Technology16-1OnogawaTsukubaJapan

Catalytic coal gasification is an efficient way to achieve high conversion rates at low *** loss due to the reaction between the inherent mineral matter in the coal and the catalyst is a major hurdle for its practical *** problem may be overcome by removing the mineral matter from the coal before *** demineralizing approaches,acid-washing and solvent-extraction methods are investigated for demineralizing the *** analysis,XRD analysis,NMR analysis,and N_(2)adsorption analysis were made to compare the demineralization efficiency,crystallographic carbon microstructure,chemical structure,and micro-porosity,***-extraction method was found be more efficient for *** was observed in the chemical structure and micro-porosity while crystallographic carbon-microstructure was found to be ***-catalytic and catalytic gasification reactivity of the chars obtained by the two methods was *** composition and gas evolution profiles were also obtained and found to be influenced by the degree of demineralization.

关键词： Coal Demineralization acid washing Solvent extraction Catalytic gasification

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

Stresses Imposed on Yeast During Brewing Fermentations and Their Effect on Cellular Activity

引用

中外酒业 2021年第5期 48-57页

作者： Graham G.Stewart International Centre for Brewing and Distilling Heriot-Watt UniversityRiccartonEdinburghEH144ASScotland(Retired)

Brewer’s yeast strains are exposed to a spectrum of threats and“in-sults”thatcultures encounter during wort *** storage(including acid washing)andtheir propagation can also stress yeast *** are a plethora of parameters that ayeast culture toler-ates during its propagation,stprage,and throughout and between *** can result in a number of effects on a yeast *** includedecreases in yeast viability and vitality,depletion of intracellular glycogen,increases intrehalose,and excretion of intra-cellular proteinase A and other proteinases,with effects onbeer foam *** of cell wall components will also *** addition,modification ofa culture’s flocculation characteristics can result,to-gether with the formation of unfilterablemannan-protein beer hazes,Finally,increases in respiratory deficient(petite)and other yeastmu-tants have been reported.

关键词： acid washing brewer’s yeast centrifuges glycogen propa-gation storage stress trehalose

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：