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

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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 *** this paper,the recent advances in biofuels and high chemicals for selective production based on biochar catalysts from different biomass wastes are critically *** topics mainly include the modification of biochar catalysts,the preparation of energy products,and the mechanisms of other high-value *** biochar catalysts can enhance the yield of biofuels and higher-value ***,the feedstock and reaction conditions of biochar catalyst,which affect the efficiency of energy products,have been the focus of recent *** studies based on biochar catalysts will be helpful to the controlled ***,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 *** 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 *** 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

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

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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 *** 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 *** 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 *** 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 ***,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 ***,the challenges and future research goals to develop novel and holistic natural oil biorefineries are *** 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 *** 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

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

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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 is divided into two parts;one contains the microalgae system and the other contains the hydroponic *** combined system works by dividing the 24 hours into 12 hours of light and 12 hours of dark for each *** 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 *** this paper,the authors developed a validated mathematical model for hydroponic and microalgae to evaluate the system’s *** found by the model show the optimum parameters for the split photobioreactor and hydroponic *** 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 *** 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

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

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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 ***,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 ***,the production and the separation of biofuels and bio-based chemicals in energy-saving,low-cost and greenness ways become hot topics *** 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 ***-out/sugar-ing-out extraction and salting-out/sugaring-out technologies display the high separating efficiency and the high targeted product *** addition,they are easy to operate and require low cost for separating ***,they are the effective and potential technologies for separating targeted products in the wide industrial *** 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

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

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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 *** renewable and sustainable sources have become the ultimate solution to overcome the expected depletion of fossil *** conversion of lignocellulosic biomass to liquid(BtL)transportation fuels seems to be a promising path and presents advantages over first generation biofuels and fossil ***,development of BtL systems is critical to increase the potential of this resource in a sustainable and economic *** of lignocellulosic BtL transportation fuels,such as,gasoline,diesel and jet fuel can be accomplished through various thermochemical processes and processing *** 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 *** 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

biofuels and food security

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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 *** 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 *** review aims to fi nd economic,reliable,renewable and non-polluting energy sources to reduce high energy tariffs in Russian *** is fuel derived directly from plants,or indirectly from agricultural,commercial,domestic,and/or industrial *** alternative energy sources including solar energy and electric power generation are also *** 100 Mt of biomass available for energy purposes is produced every year in *** of the downsides of biomass energy is its potential threatens to food security and forage *** innovative approach proved that multicomponent fuel(80%diesel oil content for motor and 64%for in stove fuel)can remarkably reduce the *** 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

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

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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 ***,converting these feedstocks to usable biofuel poses inherent problems in terms of the FFA to biofuel conversion yield and the catalyst ***,we report novel ferric sulfate impregnated carbon derived from waste tires as highly active catalysts for FFA to biofuel *** 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 *** of FFAs to fatty acid methyl esters was achieved at 65C and atmospheric pressure with>98%yield even in the presence of *** 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

Evolving perspectives on biofuels in the United States

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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

Synthesis and catalytic performance of bimetallic NiMo-and NiW-ZSM-5/MCM-41 composites for production of liquid biofuels

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燃料化学学报 2017年第7期45卷 805-816页

作者： Maliwan Subsadsana Pitsanuphong Kham-or Pakpoom Sangdara Pirom Suwannasom Chalerm Ruangviriyachai Materials Chemistry Research Center and Center of Excellence for Innovation in Chemistry Department of ChemistryFaculty of ScienceKhon Kaen University

This work presents a synthesis of bimetallic NiMo and NiW modified ZSM-5/MCM-41 composites and their heterogeneous catalytic conversion of crude palm oil( CPO) to biofuels. The ZSM-5/MCM-41 composites were synthesized through a self-assembly of cetyltrimethylammonium bromide( CTAB) surfactant with silica-alumina from ZSM-5 zeolite,prepared from natural kaolin by the hydrothermal technique. Subsequently,the synthesized composites were deposited with bimetallic NiMo and NiW by impregnation method. The obtained catalysts presented a micro-mesoporous structure,confirmed by XRD,SEM,TEM,EDX,NH_3-TPD,XRF and N_2 adsorption-desorption measurements. The results of CPO conversion demonstrate that the catalytic activity of the synthesized catalysts decreases in the series of NiMo-ZSM-5/MCM-41 > NiW-ZSM-5/MCM-41 > Ni-ZSM-5/MCM-41 > Mo-ZSM-5/MCM-41 > W-ZSM-5/MCM-41 > NiMo-ZSM-5 > NiW-ZSM-5 > ZSM-5/MCM-41 > ZSM-5 > MCM-41. It was found that the bimetallic NiMo-and NiW-ZSM-5/MCM-41 catalysts give higher yields of liquid hydrocarbons than other catalysts at a given conversion. Types of hydrocarbon in liquid products,identified by simulated distillation gas chromatography-flame ionization detector( SimDis GC-FID),are gasoline( 150-200 ℃; C5-12),kerosene( 250-300 ℃; C5-20) and diesel( 350 ℃; C7-20).Moreover,the conversion of CPO to biofuel products using the NiMo-and NiW-ZSM-5/MCM-41 catalysts offers no statistically significant difference( P> 0.05) at 95% confidence level,evaluated by SPSS analysis.

关键词： self-assembly of surfactant ZSM-5/MCM-41 composite micro-mesoporous structure hydrocracking process liquid biofuels