检索结果-南通市图书馆

High-silica faujasite zeolite-tailored metal encapsulation for the low-temperature production of pentanoic biofuels

Journal of Energy Chemistry 2024年第1期88卷 552-560,I0012页

作者： Wenhao Cui Yuanshuai Liu Pengfei Guo Zhijie Wu Liqun Kang Huawei Geng Shengqi Chu Linying Wang Dong Fan Zhenghao Jia Haifeng Qi Wenhao Luo Peng Tian Zhongmin Liu National Engineering Research Center of Lower-Carbon Catalysis Technology Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101ShandongChina College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021Inner MongoliaChina State Key Laboratory of Heavy Oil Processing and Key Laboratory of Catalysis of CNPC China University of PetroleumBeijing 102249China Department of Inorganic Spectroscopy Max Planck Institute for Chemical Energy ConversionMülheim an der Ruhr 45470Germany Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Division of Energy Research Resources Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Leibniz-Institut für Katalyse Albert-Einstein-Straβe 29aRostock 18059Germany

Zeolite-encapsulated metal nanoclusters are at the heart of bifunctional catalysts,which hold great potential for petrochemical conversion and the emerging sustainable biorefineries.Nevertheless,efficient encapsulation of metal nanoclusters into a high-silica zeolite Y in particular with good structural integrity still remains a significant challenge.Herein,we have constructed Ru nanoclusters(~1 nm)encapsulated inside a high-silica zeolite Y(SY)with a SiO_(2)/Al_(2)O_(3) ratio(SAR)of 10 via a cooperative strategy for direct zeolite synthesis and a consecutive impregnation for metal encapsulation.Compared with the benchmark Ru/H-USY and other analogues,the as-prepared Ru/H-SY markedly boosts the yields of pentanoic biofuels and stability in the direct hydrodeoxygenation of biomass-derived levulinate even at a mild temperature of 180℃,which are attributed to the notable stabilization of transition states by the enhanced acid accessibility and properly sized constraints of zeolite cavities owing to the good structural integrity.

关键词： High-silica zeolite Y Metal encapsulation Bifunctional catalysis Hydrodeoxygenation biofuels

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

Past, Present and Future: A Role for Liquid biofuels in Transitioning to Net Zero?

引用

Natural Resources 2024年第5期15卷 107-124页

作者： David Michael Mousdale Beò carta Ltd. Glasgow United Kingdom

Over the last decade, the uptake rate of first-generation biofuels (ethanol and biodiesel) has decelerated as low blend limits have increased only slowly and extreme volatility in oil prices has limited investment in biofuels production infrastructure. Concerns over the environmental impacts of large-scale biofuels production combined with tariff barriers have greatly restricted the global trade in biofuels. First-generation biofuels produced either by fermentation of sugars from maize or sugarcane (ethanol) or transesterification of triglycerides (biodiesel) presently contribute less than 4% of terrestrial transportation fuel demand and techno-economic modelling foresees this only slowly increasing by 2035. With internal combustion and diesel engines widely anticipated as being phased out in favour of electric power for motor vehicles, a much-reduced market demand for biofuels is likely if global demand for all liquid fuels declines by 2050. However, second-generation, thermochemically produced and biomass-derived fuels (renewable diesel, marine oils and sustainable aviation fuel) have much higher blend limits;combined with policies to decarbonise the aviation and marine industries, major new markets for these products in terrestrial, marine and aviation sectors may emerge in the second half of the 21st century.

关键词： biofuels Ethanol Biodiesel Renewable Diesel Sustainable Aviation Fuel Biomass

来源：

维普期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Selective preparation for biofuels and high value chemicals based on biochar catalysts

引用

Frontiers in Energy 2023年第5期17卷 635-653页

作者： Hui LI Changlan HOU Yunbo ZHAI Mengjiao TAN Zhongliang HUANG Zhiwei WANG Lijian LENG Peng LIU Tingzhou LEI Changzhu LI State Key Laboratory of Utilization of Woody Oil Resource Hunan Academy of ForestryChangsha 410004China College of Environmental Science and Engineering Hunan UniversityChangsha 410082China School of Environmental Engineering Henan University of TechnologyZhengzhou 450001China School of Energy Science and Engineering Central South UniversityChangsha 410083China National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization Institute of Urban and Rural MiningChangzhou UniversityChangzhou 213164China

The reuse of biomass wastes is crucial toward today’s energy and environmental crisis,among which,biomass-based biochar as catalysts for biofuel and high value chemical production is one of the most clean and economical solutions.In this paper,the recent advances in biofuels and high chemicals for selective production based on biochar catalysts from different biomass wastes are critically summarized.The topics mainly include the modification of biochar catalysts,the preparation of energy products,and the mechanisms of other high-value products.Suitable biochar catalysts can enhance the yield of biofuels and higher-value chemicals.Especially,the feedstock and reaction conditions of biochar catalyst,which affect the efficiency of energy products,have been the focus of recent attentions.Mechanism studies based on biochar catalysts will be helpful to the controlled products.Therefore,the design and advancement of the biochar catalyst based on mechanism research will be beneficial to increase biofuels and the conversion efficiency of chemicals into biomass.The advanced design of biochar catalysts and optimization of operational conditions based on the biomass properties are vital for the selective production of high-value chemicals and biofuels.This paper identifies the latest preparation for energy products and other high-value chemicals based on biochar catalysts progresses and offers insights into improving the yield of high selectivity for products as well as the high recyclability and low toxicity to the environment in future applications.

关键词： biomass biochar catalysts biofuels high chemicals

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

Tuning the selectivity of natural oils and fatty acids/esters deoxygenation to biofuels and fatty alcohols:A review

引用

Green Energy & Environment 2023年第3期8卷 722-743页

作者： Yingdong Zhou Javier Remon Zhicheng Jiang Avtar S.Matharu Changwei Hu Key Laboratory of Green Chemistry and Technology Ministry of EducationCollege of ChemistrySichuan UniversityChengduSichuan 610064China Instituto de Carboquímica CSICZaragoza50018Spain Department of Biomass Science and Engineering Sichuan UniversityChengdu610064China National Engineering Research Center of Clean Technology in Leather Industry Sichuan UniversityChengdu610064China Green Chemistry Centre of Excellence Department of ChemistryUniversity of YorkHeslingtonYorkYO105DDUK

The chemical transformation of natural oils provides alternatives to limited fossil fuels and produces compounds with added value for the chemical industries.The selective deoxygenation of natural oils to diesel-ranged hydrocarbons,bio-jet fuels,or fatty alcohols with controllable selectivity is especially attractive in natural oil feedstock biorefineries.This review presents recent progress in catalytic deoxygenation of natural oils or related model compounds(e.g.,fatty acids)to renewable liquid fuels(green diesel and bio-jet fuels)and valuable fatty alcohols(unsaturated and saturated fatty alcohols).Besides,it discusses and compares the existing and potential strategies to control the product selectivity over heterogeneous catalysts.Most research conducted and reviewed has only addressed the production of one category;therefore,a new integrative vision exploring how to direct the process toward fuel and/or chemicals is urgently needed.Thus,work conducted to date addressing the development of new catalysts and studying the influence of the reaction parameters(e.g.,temperature,time and hydrogen pressure)is summarized and critically discussed from a green and sustainable perspective using efficiency indicators(e.g.,yields,selectivity,turnover frequencies and catalysts lifetime).Special attention has been given to the chemical transformations occurring to identify key descriptors to tune the selectivity toward target products by manipulating the reaction conditions and the structures of the catalysts.Finally,the challenges and future research goals to develop novel and holistic natural oil biorefineries are proposed.As a result,this critical review provides the readership with appropriate information to selectively control the transformation of natural oils into either biofuels and/or value-added chemicals.This new flexible vision can help pave the wave to suit the present and future market needs.

关键词： Natural oil Deoxygenation Controllable selectivity biofuels Fatty alcohols

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

Innovative design for a portable hybrid system of hydroponic and microalgae to produce food and biofuels

引用

Clean Energy 2022年第3期6卷 412-423页

作者： Ammar Alkhalidi Hala Jarah Mohamad K.Khawaja German Jordanian University Energy Engineering DepartmentAmmanJordan University of Sharjah Sustainable and Renewable Energy DepartmentSharjahUAE

This study investigates an innovative hybrid system that combines hydroponics and microalgae in a compact portable shipping container.This container is divided into two parts;one contains the microalgae system and the other contains the hydroponic system.This combined system works by dividing the 24 hours into 12 hours of light and 12 hours of dark for each part.Both parts are connected using light-impermeable pipes that pass carbon dioxide from the dark side to the lit side and oxygen from the lit side to the dark side.In this paper,the authors developed a validated mathematical model for hydroponic and microalgae to evaluate the system’s performance.Results found by the model show the optimum parameters for the split photobioreactor and hydroponic system.The first investigated parameter is the sparger diameter for split the photobioreactor and the second is the number of plants that give the better and optimum result.The optimum modelling design for the combined hydroponic and microalgae system was using 100 plants for lettuce and three photobioreactors with a 0.009-m diameter for sparger to a photobioreactor system with an area of 15.6 m^(2).

关键词： hydroponic system microalgae system split photobioreactor nutrient film technique(nft) microalgae lipids biofuels

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

A review of salting-out effect and sugaring-out effect:driving forces for novel liquid-liquaid extraction of biofuels and biochemicals

引用

Frontiers of Chemical Science and Engineering 2021年第4期15卷 854-871页

作者： Chuhan Fu Zhuoxi Li Zengran Sun Shaoqu Xie The Gene and Linda Voiland School of Chemical Engineering and Bioengineering Washington State UniversityPullmanWA 99164USA School of Pharmacy Xinhua College of Sun Yat-sen UniversityGuangzhou 510275China

biofuels and bio-based chemicals are getting more and more attention because of their sustainable and renewable properties and wide industrial applications.However,the low concentrations of the targeted products in their fermentation broths,the complicated components of the broths and the high energy-intensive separation and purification process hinder the competitiveness of biofuels and biochemicals with the petro-based ones.Hence,the production and the separation of biofuels and bio-based chemicals in energy-saving,low-cost and greenness ways become hot topics nowadays.This review introduces the separation technologies(salting-out extraction,salting-out,sugaring-out extraction,and sugaring-out)that extract biobutanol,1,3-propanediol,2,3-butanediol,acetoin,organic acids and other bio-based chemicals from fermentation broths/aqueous solutions.Salting-out/sugar-ing-out extraction and salting-out/sugaring-out technologies display the high separating efficiency and the high targeted product yields.In addition,they are easy to operate and require low cost for separating products.Hence,they are the effective and potential technologies for separating targeted products in the wide industrial applications.The successful research into the salting-out/sugaring-out and salting-out/sugaring-out extraction not only affords biofuels and biochemical but also opens a door for the development of novel separation methods.

关键词： salting-out sugaring-out extraction biofuels biochemicals application

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

A review of the current state of biofuels production from lignocellulosic biomass using thermochemical conversion routes

引用

Chinese Journal of Chemical Engineering 2019年第7期27卷 1523-1535页

作者： Paola Ibarra-Gonzalez Ben-Guang Rong Department of Chemical Engineering Biotechnology and Environmental Technology University of Southern Denmark

The rapid increase in energy demand,the extensive use of fossil fuels and the urgent need to reduce the carbon dioxide emissions have raised concerns in the transportation sector.Alternate renewable and sustainable sources have become the ultimate solution to overcome the expected depletion of fossil fuels.The conversion of lignocellulosic biomass to liquid(BtL)transportation fuels seems to be a promising path and presents advantages over first generation biofuels and fossil fuels.Therefore,development of BtL systems is critical to increase the potential of this resource in a sustainable and economic way.Conversion of lignocellulosic BtL transportation fuels,such as,gasoline,diesel and jet fuel can be accomplished through various thermochemical processes and processing routes.The major steps for the production of BtL fuels involve feedstock selection,physical pretreatment,production of bio-oil,upgrading of bio-oil to transportation fuels and recovery of value-added products.The present work is aiming to give a comprehensive review of the current process technologies following these major steps and the current scenarios of biomass to liquid facilities for the production of biofuels.

关键词： biofuels Lignocellulosic biomass Process route Thermochemical conversion Upgrading Separation

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

biofuels and food security

引用

Frontiers of Agricultural Science and Engineering 2015年第1期2卷 1-12页

作者： Dmitry S.STREBKOV All-Russian Research Institute for Electri fi cation of Agriculture (VIESH) 1-st. Veshnyakovsky proezd 2 Moscow 109456 Russia

The major source of energy comes from fossil fuels.The current situation in the fi eld of fuel and energy is becoming more problematic as world population continues to grow because of the limitation of fossil fuels reserve and its pressure on environment.This review aims to fi nd economic,reliable,renewable and non-polluting energy sources to reduce high energy tariffs in Russian Federation.Biofuel is fuel derived directly from plants,or indirectly from agricultural,commercial,domestic,and/or industrial wastes.Other alternative energy sources including solar energy and electric power generation are also discussed.Over 100 Mt of biomass available for energy purposes is produced every year in Russian.One of the downsides of biomass energy is its potential threatens to food security and forage industries.An innovative approach proved that multicomponent fuel(80%diesel oil content for motor and 64%for in stove fuel)can remarkably reduce the costs.This paper proposed that the most promising energy model for future is based on direct solar energy conversion and transcontinental terawatt power transmission with the use of resonant wave-guide technology.

关键词： fossil fuels biofuels food security electric power solar energy

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

Tire-derived carbon for catalytic preparation of biofuels from feedstocks containing free fatty acids

引用

Carbon Resources Conversion 2018年第2期1卷 165-173页

作者： Zachary D.Hood Shiba P.Adhikari Samuel F.Evans Hui Wang Yunchao Li Amit K.Naskar Miaofang Chi Abdou Lachgar M.Parans Paranthaman School of Chemistry and Biochemistry Georgia Institute of TechnologyAtlantaGA 30332USA Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831USA Department of Chemistry Wake Forest UniversityWinston-SalemNC 27109USA Center for Energy Environmentand Sustainability(CEES)Wake Forest UniversityWinston-SalemNC 27109USA Chemical Sciences Division Oak Ridge National LaboratoryOak RidgeTN 37831USA The Bredesen Center for Interdisciplinary Research and Graduate Education The University of TennesseeKnoxvilleTN 37996USA Mechanical Engineering and Conn Center for Renewable Energy Research University of LouisvilleLouisvilleKY 40292USA Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Materials Science and Technology Division(MSTD) Oak Ridge National LaboratoryOak RidgeTN 37831USA

The utilization of waste feedstocks rich in free fatty acids(FFAs)improves biofuel production on the basis of economics and sustainability.However,converting these feedstocks to usable biofuel poses inherent problems in terms of the FFA to biofuel conversion yield and the catalyst lifetime.Here,we report novel ferric sulfate impregnated carbon derived from waste tires as highly active catalysts for FFA to biofuel conversion.Our approach takes advantage of facile synthesis methods involving sonication and dehydration processes to create materials that are useful for the efficient catalytic conversion of FFAs to advanced biofuels.Esterification of FFAs to fatty acid methyl esters was achieved at 65C and atmospheric pressure with>98%yield even in the presence of triglycerides.These catalysts maintained similar activity after four successive uses,which indicates that the active catalytic sites are effectively supported by the three-dimensional meso/microporous architecture of the tire-derived carbon.

关键词： biofuels Solid acidcatalyst Recycled tires Free fattyacids Esterification

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

Evolving perspectives on biofuels in the United States

引用

Frontiers in Energy 2012年第4期6卷 379-393页

作者： Lisa C. DIRKS Gary W. DIRKS Jianguo WU Global Institute of Sustainability and School of Life Sciences ArizonaState University Tempe Arizona 85287 USA Global Institute of Sustainability and School of Life Sciences ArizonaState University Tempe Arizona 85287 USA Sino-US Center forConservation Energy and Sustainability Science (SUCCESS) InnerMongolia University Hohhot 010021 China

biofuels represent an important source of renewable energy and may play a crucial role in developing sustainable energy strategies for many countries and the world as a whole. The pros and cons of biofuels, however, have been debated both scientifically and politically. They remain a topic of controversy. In this paper, the evolvement of the perspectives and policies on biofuels in the United States in the past several decades was reviewed. Four different periods, that is, the period prior to 1978 （marked by the passage of the Energy Act in 1978）; 1978-1989 （ending with the passage of the Clean Air Act Amendments of 1990）; 1990-2004 （ending with the passage of the energy act of 2005）; and 2005 to the present, which were characterized by defining events of major policy importance were identified. Each time period was assessed using the Ostrom institutional analysis and development （IAD） framework to show the impact of the evolving interests and influences of global players on policy choices related to biofuels in the United States. The US has a long history of supporting corn-based ethanol and more recently advanced biofuels. Changes in perspectives on biofuels from largely unrelated groups led to changes in policy and market dynamics. Until the late 1990s, most perspectives and policies tended to be aligned and significantly supportive of corn-based ethanol in the United States. In the early 2000s, it became clear that the complications associated with first generation biofuels and corn-based ethanol in particular, were too numerous and too severe to overlook. The need for better options has spurred interest in new technologies and more environmentally benign feedstocks, but, there is little prospect forbiofuels playing a significant role in the near term without greater alignment among key players.

关键词： renewable energy biofuels energy sustain-ability

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

在线全文

在线全文

在线全文

在线全文

在线全文

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

在线全文

在线全文

在线全文

在线全文

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：