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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

Alcohol solvent effect on the self-assembly behaviors of lignin oligomers

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Green Energy & Environment 2024年第4期9卷 597-603页

作者： Ya Ma zhicheng jiang Yafei Luo Xingjie Guo Xudong Liu Yiping Luo Bi Shi College of Biomass Science and Engineering Sichuan UniversityChengdu610065China National Engineering Research Center of Clean Technology in Leather Industry Sichuan UniversityChengdu610065China College of Pharmacy(International Academy of Targeted Therapeutics and Innovation) Chongqing University of Arts and SciencesChongqing402160China State Key Laboratory of Utilization of Woody Oil Resource Hunan Academy of ForestryChangsha410004China CAS Key Laboratory of Environmental and Applied Microbiology Environmental Microbiology Key Laboratory of Sichuan ProvinceChengdu Institute of BiologyChinese Academy of SciencesChengdu610041China

The interactions between lignin oligomers and solvents determine the behaviors of lignin oligomers self-assembling into uniform lignin nanoparticles(LNPs).Herein,several alcohol solvents,which readily interact with the lignin oligomers,were adopted to study their effects during solvent shifting process for LNPs’*** lignin oligomers with widely distributed molecular weight and abundant guaiacyl units were extracted from wood waste(mainly consists of pine wood),exerting outstanding self-assembly *** and spherical LNPs were generated in H_(2)O-n-propanol cosolvent,whereas irregular LNPs were obtained in H_(2)O-methanol *** unsatisfactory self-assembly performance of the lignin oligomers in H_(2)O-methanol cosolvent could be attributed to two *** one hand,for the initial dissolution state,the distinguishing Hansen solubility parameter and polarity between methanol solvent and lignin oligomers resulted in the poor dispersion of the lignin *** the other hand,strong hydrogen bonds between methanol solvent and lignin oligomers during solvent shifting process,hindered the interactions among the lignin oligomers for self-assembly.

关键词： Lignin oligomers Alcohol solvent Self-assembly LNPs Solvent effects

Selective extraction and conversion of lignin in actual biomass to monophenols: A review

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Journal of Energy Chemistry 2016年第6期25卷 947-956页

作者： zhicheng jiang Changwei Hu Key Laboratory of Green Chemistry and Technology Ministry of Education College of Chemistry Sichuan University

Our over dependency on the fossil resource for industrial chemicals and fuels faces great challenges. Recently, the production of monophenols from lignin in lignocellulosic biomass is regarded as a promising process for sustainable biofuels. This article discusses the conversion of lignin in actual biomass directly to monophenols. The two step way including extraction of lignin from biomass and further degradation of the lignin oligomers to monophenols is especially discussed. The obtained monophenols can also be converted to chemicals with low-oxygen content via hydrodeoxygenation process. For extraction of lignin, co-solvent system is the most adopted for hydrolysis or solvolysis of lignin assisted by acid or alkaline catalysts. The structure of the obtained oligomers derived from lignin is discussed in detail. For lignin depolymerization, hydrogenolysis is an efficient method with the use of gaseous hydrogen or alcohols as hydrogen source. At the meantime, depolymerization mechanism and the route for repolymerization of the reaction intermediates are presented here. In hydrodeoxygenation process, metal catalysts, especially noble metal catalysts are required. The precise effects of the reaction solvents and catalysts on extraction and degradation of lignin need to be further investigated, and this will benefit to design more efficient strategies for lignin utilization. © 2016 Science Press

关键词： Biomass Catalysts Extraction Hydrolysis Industrial chemicals Oligomers Precious metals Reaction intermediates Reviews Solvents

Biomass derived oligosaccharides for potential leather tanning

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Collagen and Leather 2023年第4期5卷 64-66页

作者： zhicheng jiang Wei Ding Jiajun Fan Yuhe Liao Javier Remón Bi Shi College of Biomass Science and Engineering Sichuan UniversityChengdu 610065China National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan UniversityChengdu 610065China China Leather and Footwear Research Institute Co.Ltd. Beijing 100015China Department of Chemistry Green Chemistry Centre of ExcellenceUniversity of YorkYork YO105DDUK Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640China Thermochemical Processes Group Aragón Institute for Engineering Research(13A)University of ZaragozaC/Mariano Esquillor s/n50018 ZaragozaSpain

The global demand for renewable and affordable feed-stocks,combined with the worldwide targets for reduc-ing carbon emissions,is the driving force behind a breakthrough in resource revolution and GreenTech innovations[1].Owing to the vast reserves and short growing cycle,utilizing lignocellulosic biomass as an alternative to petroleum and environmentally friendly feedstock to furnish bioenergy and biomaterials is key to building a more sustainable *** mainly contains three biopolymers,i.e.,cellulose,hemicellulose and *** the centuries,utilization of lignocellu-lose has crossed its possible molecular scale ranging from 101 m,as the original matrix,to 10-10 m,as a mono-meric molecule.

关键词： cellulose breakthrough utilizing

Construction of a high-density SSR genetic linkage map and identification of QTL for storage-root yield and dry-matter content in sweetpotato

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The Crop Journal 2023年第3期11卷 963-967页

作者： Chenxing Zheng zhicheng jiang Yusha Meng Jun Yu Xinsun Yang Huan Zhang Ning Zhao Shaozhen He Shaopei Gao Hong Zhai Qingchang Liu Key Laboratory of Sweetpotato Biology and Biotechnology Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis&UtilizationMinistry of EducationCollege of Agronomy&BiotechnologyChina Agricultural UniversityBeijing 100193China Institute of Rural Development Zhejiang Academy of Agricultural SciencesHangzhou 310021ZhejiangChina Institute of Food Crops Hubei Academy of Agricultural SciencesWuhan 430064HubeiChina

Sweetpotato(Ipomoea batatas(L.)Lam.)is a widely grown food crop especially in developing *** storage-root yield and dry-matter content has been the main breeding objective of the crop,and DNA marker-assisted breeding is needed for this *** this study,using a mapping population of 500 F1 individuals from a cross between Xushu 18(female)and Xu 781(male),we constructed a highdensity genetic linkage map of sweetpotato using 601 simple-sequence repeat(SSR)primer *** Xushu 18 map contained 90 linkage groups with 5547 SSR markers and spanned 18,263.5 cM,and the Xu 781 map contained 90 linkage groups with 4599 SSR markers and spanned 18,043.7 cM,representing the highest genome coverage yet reported for *** identified 33 QTL for storage-root yield and 16 QTL for dry-matter content,explaining respectively 6.5%–47.5%and 3.2%–18.9%of *** results provide a foundation for fine-mapping and cloning of QTL and for marker-assisted breeding in sweetpotato.

关键词： Sweetpotato SSR linkage map QTL Storage-root yield Dry-matter content

Valorization of Camellia oleifera oil processing byproducts to value-added chemicals and biobased materials: A critical review

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Green Energy & Environment 2024年第1期9卷 28-53页

作者： Xudong Liu Yiying Wu Yang Gao zhicheng jiang Zicheng Zhao Wenquan Zeng Mingyu Xie Sisi Liu Rukuan Liu Yan Chao Suli Nie Aihua Zhang Changzhu Li Zhihong Xiao State Key Laboratory of Utilization of Woody Oil Resource Hunan Academy of ForestryChangsha410004China Key Laboratory of State Forestry and Grassland Administration on Utilization Science for Southern Woody Oil Resource Hunan Academy of ForestryChangsha410004China Hunan Provincial Key Laboratory of Oils and Fats Molecular Structure and Function Changsha410004China State Key Laboratory of Separation Membranes and Membrane Processes College of ChemistryTiangong UniversityTianjin300387China College of Biomass Science and Engineering Sichuan UniversityChengdu610065China College of Mechanical Engineering and Mechanics Xiangtan UniversityXiangtan411105China

The *** oil processing industry generates large amounts of solid wastes,including *** shell(COS)and *** cake(COC).Distinct from generally acknowledged lignocellulosic biomass(corn stover,bamboo,birch,etc.),Camellia wastes contain diverse bioactive substances in addition to the abundant lignocellulosic components,and thus,the bioreﬁnery utilization of *** processing byproducts involves complicated processing *** reviewﬁrst summarizes various technologies for extracting and converting the main components in *** oil processing byproducts into value-added chemicals and biobased materials,as well as their potential ***,ultrasound,and Soxhlet extractions are compared for the extraction of functional bioactive components(tannin,ﬂavonoid,saponin,etc.),while solvothermal conversion and pyrolysis are discussed for the conversion of lignocellulosic components into value-added *** application areas of these chemicals according to their properties are introduced in detail,including utilizing antioxidant and anti-in-ﬂammatory properties of the bioactive substances for the speciﬁc application,as well as drop-in chemicals for the substitution of unrenewable fossil fuel-derived *** addition to chemical production,biochar fabricated from COS and its applications in theﬁelds of adsorption,supercapacitor,soil remediation and wood composites are comprehensively reviewed and ***,based on the compositions and structural characteristics of *** byproducts,the development of full-component valorization strategies and the expansion of the appli-cationﬁelds are proposed.

关键词： Camellia oleifera shell Camellia oleifera cake Value-added chemicals Bioactive components Biobased materials

The first observation of Mo^(5+) in the passivation layer of Mo_2N

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Chinese Science Bulletin 2000年第17期45卷 1562-1564页

作者： XIE Guohuang & jiang zhichengStale Key Laboratory of Oxo-Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy ofSciences, Lanzhou 730000, ChinaCorrespondence should he addressed to jiang zhicheng State Key Laboratory of Oxo-Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China

Molybdenum nitride powder with sg of 115 m2 .............. g 1 (passivated) has been prepared by a temperature programmed reaction of MoO3 in H2/N2 mixture. It exhibited high catalytic activity in CO oxidation at low temperature. XPS, EPR and LRS studies have shown the existence of mixed valence states of Mo ions, especially Mo5+ ion (g=1.932, g =1.892) observed for the first time, in the passivation layer of molybdenum nitride. A surface superoxide species, O2 (g = 2.001, Ramanband 1 124 cm 1), was found to be produced accompanying the transformation of Mo5+/Mo4+ redox pair. Evidence has been given to suggest that this surface superoxide might be responsible for CO oxidation over Mo2N catalyst.

关键词： molybdenum nitride passivation layer Mo XPS EPR LRS.

INVESTIGATION OF THE ACTIVE PHASE OF Ag_xSb_yO_z/SiO_2 CATALYST FOR THE CONDENSATION OF ISOBUTENE AND FORMALDEHYDE INTO ISOPRENE

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分子催化 1989年第S1期3卷 42-50页

作者： An Lidun, jiang zhicheng and Yin Yuangen (Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China)

Chemical Composition,surface distribution of the elements and crystal structure offresh and deactivated AgxSbyOz/SiO2 catalysts were investigated investigated by X-ray photoelectronspectroscopy（XPS）,scanning Auger microprobc（SAM）,electron microdiffraction（EMD）and atomic absorption spectroscopy（AAS）.From the experimental results that in-clude the activity evaluation of model catalyst Sb2O4/SiO2 Which Shows the inertness ofSb2O4 in Prins reaction,it is reasonable to infer that the active phase ofAgxSbyOz/SiO2 catalyst for Prins condensation reaction seems to be cubic AgSbO3.Thereason of the deactivation of the catalyst was *** is suggested that silver componentseems to be unstable in this catalyst.

关键词： silver cubic unstable crystalline condensation Electron dispersed photoelectron spectrometer spacing

EPR Study on Mixed Valence States of Mo Ions in Molybdenum Nitride

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分子催化 1998年第3期 4-5页

作者： XIE Guohuang jiang zhicheng AN Lidun BAI Tingfang WANG Hanqing2)(Lanzhou Institute of Chemical Physics The Chinese Academy of Sciences Lanzhou 730000)

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关键词： EPR Molybdenum nitride Passivation