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期刊论文 12

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乙醇 1

厌氧消化 1

原料不均一性 1

可持续能源 1

工业技术体系 1

微生物生态学 1

木质纤维原料 1

木质纤维素垃圾 1

沼气 1

热化学平台;糖平台;羧酸盐平台;木质纤维类生物质;直接用的生物燃料;产业化 1

生物炼制 1

组分选择性拆分-功能经济性利用 1

预处理技术 1

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Review of the direct thermochemical conversion of lignocellulosic biomass for liquid fuels

Jianchun JIANG,Junming XU,Zhanqian SONG

《农业科学与工程前沿(英文)》 2015年 第2卷 第1期   页码 13-27 doi: 10.15302/J-FASE-2015050

摘要: Increased demand for liquid transportation fuels, environmental concerns and depletion of petroleum resources requires the development of efficient conversion technologies for production of second-generation biofuels from non-food resources. Thermochemical approaches hold great potential for conversion of lignocellulosic biomass into liquid fuels. Direct thermochemical processes convert biomass into liquid fuels in one step using heat and catalysts and have many advantages over indirect and biological processes, such as greater feedstock flexibility, integrated conversion of whole biomass, and lower operation costs. Several direct thermochemical processes are employed in the production of liquid biofuels depending on the nature of the feedstock properties: such as fast pyrolysis/liquefaction of lignocellulosic biomass for bio-oil, including upgrading methods, such as catalytic cracking and hydrogenation. Owing to the substantial amount of liquid fuels consumed by vehicular transport, converting biomass into drop-in liquid fuels may reduce the dependence of the fuel market on petroleum-based fuel products. In this review, we also summarize recent progress in technologies for large-scale equipment for direct thermochemical conversion. We focus on the technical aspects critical to commercialization of the technologies for production of liquid fuels from biomass, including feedstock type, cracking catalysts, catalytic cracking mechanisms, catalytic reactors, and biofuel properties. We also discuss future prospects for direct thermochemical conversion in biorefineries for the production of high grade biofuels.

关键词: lignocellulosic biomass     thermochemical     liquid fuels     upgrading     biofuels    

Experimental study and product analysis of lignocellulosic biomass hydrolysis under extremely low acids

WANG Shurong, LUO Zhongyang, CEN Kefa, ZHUANG Xinshu

《能源前沿(英文)》 2008年 第2卷 第3期   页码 268-272 doi: 10.1007/s11708-008-0046-x

摘要: Using our self-designed facility for lignocellulosic biomass hydrolysis under extremely low acid, and under the optimal reaction conditions of hemicellulose and cellulose determined by xylan and quantitative filter paper as the model, two-step dilute acid hydrolysis was carried out in detail on pine, fast-growing poplar and maize straw. The corresponding conversion ratio is 41.78%, 57.84% and 53.44% and the total reducing sugar conversion ratio is 39.28%, 42.83% and 23.82% respectively. Simultaneously, sugar component analysis of the products was performed by high performance liquid chromatography (HPLC) and monosaccharide and oligosaccharide content were compared. Finally, poplar hydrolysis residues were analyzed by proximate and ultimate analysis.

关键词: HPLC     oligosaccharide     lignocellulosic     chromatography     reducing    

Research progress on hydrothermal dissolution and hydrolysis of lignocellulose and lignocellulosic waste

Yan ZHAO, Wenjing LU, Jiajun CHEN, Xiangfeng ZHANG, Hongtao WANG

《环境科学与工程前沿(英文)》 2014年 第8卷 第2期   页码 151-161 doi: 10.1007/s11783-013-0607-z

摘要: Ethanol production from lignocellulosic waste has attracted considerable attention because of its feasibility and the generation of valuable products. Previous studies have shown that pretreatment and hydrolysis are key processes for lignocellulose conversion. Hydrothermal process is a promising technique because of its efficiency to break down the lignocellulosic structures and produce fermentable hexoses. Most studies in this field have therefore focused on understanding these processes or optimizing the parameters, but commonly reported low yields of fermentable hexoses. The inability to produce high yields of fermentable hexoses is mainly attributed to inadequate information on the conversion mechanisms of lignocellulose, particularly the reaction rules of dissolution, which is a limiting step in the entire conversion process. This paper critically reviewed the progress done in the research and development of the hydrothermal dissolution and hydrolysis of lignocellulose. Principles, processes, and related studies on separate dissolution and asynchronous hydrolysis of lignin, hemicellulose, and cellulose are presented. Potential research prospects are also suggested.

关键词: lignocellulosic waste     hydrothermal conversion     separate dissolution     asynchronous hydrolysis     mechanism    

木质纤维原料制乙醇原料预处理技术

靳胜英,张福琴,张礼安

《中国工程科学》 2008年 第10卷 第11期   页码 82-88

摘要:

从预处理的必要性出发,论述了木质纤维原料的预处理技术,分析了主要预处理技术的特点和处理纤维质原料的效果,并对未来预处理技术的发展方向提出了建议,供从事木质纤维素制乙醇的研究人员参考。

关键词: 木质纤维原料     乙醇     预处理技术    

Optimization of microwave pretreatment of lignocellulosic waste for enhancing methane production: Hyacinth

Bai-Hang Zhao, Jie Chen, Han-Qing Yu, Zhen-Hu Hu, Zheng-Bo Yue, Jun Li

《环境科学与工程前沿(英文)》 2017年 第11卷 第6期 doi: 10.1007/s11783-017-0965-z

摘要: The effect of microwave pretreatment on the anaerobic degradation of hyacinth was investigated using response surface methodology (RSM). The components of lignin and the other constituents of hyacinth were altered by microwave pretreatment. Comparison of the near-infrared spectra of hyacinth pretreated by microwave irradiation and water-heating pretreatment revealed that no new compounds were generated during hyacinth pretreatment by microwave irradiation. Atomic force microscopy observations indicated that the physical structures of hyacinth were disrupted by microwave pretreatment. The yield of methane per gram of the microwave-irradiated substrate increased by 38.3% as compared to that of the substrate pretreated via water-heating. A maximum methane yield of 221 mL·g-sub was obtained under the optimum pretreatment conditions (substrate concentration (PSC) = 20.1 g·L and pretreatment time (PT) = 14.6 min) using RSM analysis. A maximum methane production rate of 0.76 mL·h ·g-sub was obtained by applying PSC= 9.5 g·L and PT= 11 min. Interactive item coefficient analysis showed that methane production was dependent on the PSC and PT, separately, whereas the interactive effect of the PSC and PT on methane production was not significant. The same trend was also observed for the methane production rate.

关键词: Microwave pretreatment     Response surface methodology     Methane production     Hyacinth     Anaerobic digestion    

Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol

Chunyan Yang, Xiaoliang Yuan, Xueting Wang, Kejing Wu, Yingying Liu, Changjun Liu, Houfang Lu, Bin Liang

《化学科学与工程前沿(英文)》 2020年 第14卷 第4期   页码 605-613 doi: 10.1007/s11705-019-1841-0

摘要: In the present work, ball milling was applied for the pretreatment of lignocellulose to obtain high conversion and bio-oil yield in supercritical ethanol. Ball milling substantially decreased the crystallinity and particle size of lignocellulose, thereby improving its accessibility in ethanol solvent. An increased bio-oil yield of 59.2% was obtained for the ball milled camphorwood sawdust at 300°C, compared with 39.6% for the original lignocellulose. Decreased crystallinity significantly benefited the conversion of the cellulose component from 60.8% to 91.7%, and decreased particle size was beneficial for the conversion of all components. The obtained bio-oil had a high phenolic content, as analyzed by gas chromatography-mass spectrometry. Methoxylation and retro-aldol condensation were observed during alcoholysis, and the reaction pathways of lignocellulose in supercritical ethanol were attributed to the action of free radicals.

关键词: ball milling     lignocellulose     supercritical ethanol     liquefaction     bio-oil    

Crop residues: applications of lignocellulosic biomass in the context of a biorefinery

Maria Carolina ANDRADE, Caio de Oliveira GORGULHO SILVA, Leonora Rios de SOUZA MOREIRA, Edivaldo Ximenes FERREIRA FILHO

《能源前沿(英文)》 2022年 第16卷 第2期   页码 224-245 doi: 10.1007/s11708-021-0730-7

摘要: Interest in lignocellulosic biomass conversion technologies has increased recently because of their potential to reduce the dependency on non-renewable feedstocks. Residues from a variety of crops are the major source of lignocellulose, which is being produced in increasingly large quantities worldwide. The commercial exploitation of crop residues as feedstocks for biorefineries which could be used to produce a variety of goods such as biofuels, biochemicals, bioplastics, and enzymes is an attractive approach not only for adding value to residues but also for providing renewable products required by the expanding bioeconomy market. Moreover, the implementation of biorefineries in different regions has the potential to add value to the specific crop residues produced in the region. In this review, several aspects of crop residue application in biorefineries are discussed, including the role of crop residues in the bioeconomy and circular economy concepts, the main technical aspects of crop residue conversion in biorefineries, the main crop residues generated in different regions of the world and their availability, the potential value-added bioproducts that can be extracted or produced from each crop residue, and the major advantages and challenges associated with crop residue utilization in biorefineries. Despite their potential, most biomass refining technologies are not sufficiently advanced or financially viable. Several technical obstacles, especially with regard to crop residue collection, handling, and pre-treatment, prevent the implementation of biorefineries on a commercial scale. Further research is needed to resolve these scale-up-related challenges. Increased governmental incentives and bioeconomic strategies are expected to boost the biorefinery market and the cost competitiveness of biorefinery products.

关键词: crop residue     biorefinery     bioproduct     biomass     circular bioeconomy     enzyme    

Hydro-pyrolysis of lignocellulosic biomass over alumina supported Platinum, Mo

Songbo He, Jeffrey Boom, Rolf van der Gaast, K. Seshan

《化学科学与工程前沿(英文)》 2018年 第12卷 第1期   页码 155-161 doi: 10.1007/s11705-017-1655-x

摘要: In-line hydro-treatment of bio-oil vapor from fast pyrolysis of lignocellulosic biomass (hydro-pyrolysis of biomass) is studied as a method of upgrading the liquefied bio-oil for a possible precursor to green fuels. The nobel metal (Pt) and non-noble metal catalysts (Mo C and WC) were compared at 500 °C and atmospheric pressure which are same as the reaction conditions for fast pyrolysis of biomass. Results indicated that under the pyrolysis conditions, the major components, such as acids and carbonyls, of the fast pyrolysis bio-oil can be completely and partially hydrogenated to form hydrocarbons, an ideal fossil fuel blend, in the hydro-treated bio-oil. The carbide catalysts perform equally well as the Pt catalyst regarding to the aliphatic and aromatic hydrocarbon formation (ca. 60%), showing the feasibility of using the cheap non-noble catalysts for hydro-pyrolysis of biomass.

关键词: bio-oil     pyrolysis     hydro-deoxygenation (HDO)     non-noble metal catalysts     hydro-treatment    

生物质垃圾制沼气技术综述 Review

Spyridon Achinas, Vasileios Achinas, Gerrit Jan Willem Euverink

《工程(英文)》 2017年 第3卷 第3期   页码 299-307 doi: 10.1016/J.ENG.2017.03.002

摘要:

当今时代,人类对化石燃料的不合理利用和温室气体对环境的影响,使研究者关注有机资源和垃圾的可持续能源转化。全球的能源需求非常大,主要能源来自化石能源。目前的研究认为厌氧消化是一种高效的可替代技术,其既能产生生物燃料,又能可持续地处理垃圾。在沼气工业,为了促进沼气的生成和提高质量,有几种不同的技术趋势。然而,投资厌氧消化的成功取决于原料成本低和沼气使用范围广( 热能、电能和燃料)。在欧洲能源市场,沼气的生产一直在增长,为生物能源的发展提供了一条经济的替代选择。本文的目的是对由木质纤维素类的生物垃圾生产沼气进行综述,为沼气经济提供重要信息。

关键词: 厌氧消化     沼气     可持续能源     木质纤维素垃圾     微生物生态学    

木质纤维素类生物质热解实现碳中和工业应用的关键问题

张书, 邹侃, 李斌, Hojae Shim, 黄勇

《工程(英文)》 2023年 第29卷 第10期   页码 35-38 doi: 10.1016/j.eng.2023.02.015

生物质原料的组分选择性拆分-功能经济性利用

陈洪章,邱卫华,王岚

《中国工程科学》 2014年 第16卷 第3期   页码 27-36

摘要:

在充分认知生物质原料在化学成分、结构组成、酶解及发酵性能上的不均一性的基础上,提出“组分选择性拆分-功能经济性利用”的生物质炼制新途径,即最大限度保持生物质大分子原有结构、尽可能激活适于酶解组分的生物活性,同时实现中间产物最大价值化。基于生物质原料特性、转化过程和产品要求的关联,笔者创新性地构建了多条生物质炼制产业链,验证了生物质“组分选择性拆分-功能经济性利用”的生物质炼制工业技术体系的可行性、合理性和可靠性。“组分选择性拆分-功能经济性利用”是突围生物质炼制生物燃料、生物材料和生物化学品的经济技术问题的必由之路。

关键词: 生物炼制     原料不均一性     组分选择性拆分-功能经济性利用     工业技术体系    

木质原料制取先进生物燃料正处在大规模产业化的前夜——迎接生物能源第二波浪潮

程 序,石元春

《中国工程科学》 2015年 第17卷 第1期   页码 11-18

摘要:

近年来在欧美国家和地区出现了一批基于热化学平台、糖平台和羧酸盐平台的新型液、气生物燃料企业。其原料和技术路线与先前第一代生物燃油乃至第二代纤维素乙醇所采用的水解-发酵或酯交换工艺完全不同。突出的特点是使用木质纤维类原料,因而能将原来不能充分利用的木质素及半纤维素所含的能量(约占总能的四成)也转化入最终的生物合成油/气之中。从而为大规模利用林木类废弃/剩余物、能源林/灌木和木变油/气提供了前所未有的机遇。当前这些技术绝大部分已通过中试和示范规模的验证,经济可行性较强,正处于大规模产业化的前夜。用它们制取的多种先进生物燃料还有两个非常大的优点,即均属于所谓的“直接使用”类燃料,能以任何比例与常规汽、柴油掺混,或完全单独用于现有的发动机(不用改装发动机),亦无需像乙醇那样须有专用的储运设施;且均有70 %~90 %的CO2减排效果。我国在此领域也出现了好的苗头,在迎接全球生物能源第二波浪潮的激烈竞争中须也能够占有一席之地。

关键词: 热化学平台;糖平台;羧酸盐平台;木质纤维类生物质;直接用的生物燃料;产业化    

标题 作者 时间 类型 操作

Review of the direct thermochemical conversion of lignocellulosic biomass for liquid fuels

Jianchun JIANG,Junming XU,Zhanqian SONG

期刊论文

Experimental study and product analysis of lignocellulosic biomass hydrolysis under extremely low acids

WANG Shurong, LUO Zhongyang, CEN Kefa, ZHUANG Xinshu

期刊论文

Research progress on hydrothermal dissolution and hydrolysis of lignocellulose and lignocellulosic waste

Yan ZHAO, Wenjing LU, Jiajun CHEN, Xiangfeng ZHANG, Hongtao WANG

期刊论文

木质纤维原料制乙醇原料预处理技术

靳胜英,张福琴,张礼安

期刊论文

Optimization of microwave pretreatment of lignocellulosic waste for enhancing methane production: Hyacinth

Bai-Hang Zhao, Jie Chen, Han-Qing Yu, Zhen-Hu Hu, Zheng-Bo Yue, Jun Li

期刊论文

Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol

Chunyan Yang, Xiaoliang Yuan, Xueting Wang, Kejing Wu, Yingying Liu, Changjun Liu, Houfang Lu, Bin Liang

期刊论文

Crop residues: applications of lignocellulosic biomass in the context of a biorefinery

Maria Carolina ANDRADE, Caio de Oliveira GORGULHO SILVA, Leonora Rios de SOUZA MOREIRA, Edivaldo Ximenes FERREIRA FILHO

期刊论文

Hydro-pyrolysis of lignocellulosic biomass over alumina supported Platinum, Mo

Songbo He, Jeffrey Boom, Rolf van der Gaast, K. Seshan

期刊论文

生物质垃圾制沼气技术综述

Spyridon Achinas, Vasileios Achinas, Gerrit Jan Willem Euverink

期刊论文

木质纤维素类生物质热解实现碳中和工业应用的关键问题

张书, 邹侃, 李斌, Hojae Shim, 黄勇

期刊论文

生物质原料的组分选择性拆分-功能经济性利用

陈洪章,邱卫华,王岚

期刊论文

木质原料制取先进生物燃料正处在大规模产业化的前夜——迎接生物能源第二波浪潮

程 序,石元春

期刊论文