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A review on co-pyrolysis of agriculture biomass and disposable medical face mask waste for green fuelproduction: recent advances and thermo-kinetic models

《化学科学与工程前沿（英文）》 2023年 第17卷 第9期   页码 1141-1161 doi: 10.1007/s11705-022-2230-7

摘要： The Association of Southeast Asian Nations is blessed with agricultural resources, and with the growing population, it will continue to prosper, which follows the abundance of agricultural biomass. Lignocellulosic biomass attracted researchers’ interest in extracting bio-oil from these wastes. However, the resulting bio-oil has low heating values and undesirable physical properties. Hence, co-pyrolysis with plastic or polymer wastes is adopted to improve the yield and quality of the bio-oil. Furthermore, with the spread of the novel coronavirus, the surge of single-use plastic waste such as disposable medical face mask, can potentially set back the previous plastic waste reduction measures. Therefore, studies of existing technologies and techniques are referred in exploring the potential of disposable medical face mask waste as a candidate for co-pyrolysis with biomass. Process parameters, utilisation of catalysts and technologies are key factors in improving and optimising the process to achieve commercial standard of liquid fuel. Catalytic co-pyrolysis involves a series of complex mechanisms, which cannot be explained using simple iso-conversional models. Hence, advanced conversional models are introduced, followed by the evolutionary models and predictive models, which can solve the non-linear catalytic co-pyrolysis reaction kinetics. The outlook and challenges for the topic are discussed in detail.

关键词： biomass     COVID-19 waste     catalyst     pyrolysis     kinetics    

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Catalytic steam reforming of tar for enhancing hydrogen production from biomass gasification: a review

Ru Shien TAN, Tuan Amran TUAN ABDULLAH, Anwar JOHARI, Khairuddin MD ISA

《能源前沿（英文）》 2020年 第14卷 第3期   页码 545-569 doi: 10.1007/s11708-020-0800-2

摘要： Presently, the global search for alternative renewable energy sources is rising due to the depletion of fossil fuel and rising greenhouse gas (GHG) emissions. Among alternatives, hydrogen (H ) produced from biomass gasification is considered a green energy sector, due to its environmentally friendly, sustainable, and renewable characteristics. However, tar formation along with syngas is a severe impediment to biomass conversion efficiency, which results in process-related problems. Typically, tar consists of various hydrocarbons (HCs), which are also sources for syngas. Hence, catalytic steam reforming is an effective technique to address tar formation and improve H production from biomass gasification. Of the various classes in existence, supported metal catalysts are considered the most promising. This paper focuses on the current researching status, prospects, and challenges of steam reforming of gasified biomass tar. Besides, it includes recent developments in tar compositional analysis, supported metal catalysts, along with the reactions and process conditions for catalytic steam reforming. Moreover, it discusses alternatives such as dry and autothermal reforming of tar.

关键词： hydrogen     biomass gasification     tar     steam reforming     catalyst    

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AGRI-ENVIRONMENTAL ASSESSMENT OF CONVENTIONAL AND ALTERNATIVE BIOENERGY CROPPING SYSTEMS PROMOTING BIOMASS

《农业科学与工程前沿（英文）》 2022年 第9卷 第2期   页码 284-294 doi: 10.15302/J-FASE-2021435

摘要：

Bioenergy, currently the largest renewable energy source in the EU (64% of the total renewable energy consumption), has sparked great interest to meet the 32% renewable resources for the 2030 bioeconomy goal. The design of innovative cropping systems informed by bioeconomy imperatives requires the evaluate of the effects of introducing crops for bioenergy into conventional crop rotations. This study aimed to assess the impacts of changes in conventional cropping systems in mixed dairy cattle farms redesigned to introduce bioenergy crops either by increasing the biomass production through an increase of cover crops, while keeping main feed/food crops, or by substituting food crops with an increase of the crop rotation length. The assessment is based on the comparison between conventional and innovative systems oriented to feed and biogas production, with and without tillage, to evaluate their agri-environmental performances (biomass production, nitrogen fertilization autonomy, greenhouse gas emissions and biogas production). The result showed higher values in the biogas cropping system than in the conventional and feed ones for all indicators, biomass productivity (27% and 20% higher, respectively), nitrogen fertilization autonomy (26% and 73% higher, respectively), methanogenic potential (77% and 41% higher, respectively) and greenhouse gas emissions (15% and 3% higher, respectively). There were no negative impacts of no-till compared to the tillage practice, for all tested variables. The biogas cropping system showed a better potential in terms of agri-environmental performance, although its greenhouse gas emissions were higher. Consequently, it would be appropriate to undertake a multicriteria assessment integrating agri-environmental, economic and social performances.

关键词： alternative cropping systems / bioeconomy / biogas / biomass production / fertilization autonomy / greenhouse gas assessment    

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Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction

《能源前沿（英文）》 2022年 第16卷 第2期   页码 321-335 doi: 10.1007/s11708-021-0741-4

摘要： An advanced cogeneration system based on biomass direct combustion was developed and its feasibility was demonstrated. In place of the traditional single heat source (extraction steam), the extraction steam from the turbine, the cooling water from the plant condenser, and the low-pressure feedwater from the feedwater preheating system were collectively used for producing district heat in the new scheme. Hence, a remarkable energy-saving effect could be achieved, improving the overall efficiency of the cogeneration system. The thermodynamic and economic performance of the novel system was examined when taking a 35 MW biomass-fired cogeneration unit for case study. Once the biomass feed rate and net thermal production remain constant, an increment of 1.36 MW can be expected in the net electric production, because of the recommended upgrading. Consequently, the total system efficiency and effective electrical efficiency augmented by 1.23 and 1.50 percentage points. The inherent mechanism of performance enhancement was investigated from the energy and exergy aspects. The economic study indicates that the dynamic payback period of the retrofitting project is merely 1.20 years, with a net present value of 5796.0 k$. In conclusion, the proposed concept is validated to be advantageous and profitable.

关键词： biomass-fired cogeneration     district heat production system     absorption heat pump     extraction steam     cooling water     low-pressure feedwater    

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Hydrogen production by biomass gasification in supercritical or subcritical water with Raney-Ni and other

Aixia PEI, Lisheng ZHANG, Bizheng JIANG, Liejin GUO, Ximin ZHANG, Youjun LV, Hui JIN,

《能源前沿（英文）》 2009年 第3卷 第4期   页码 456-464 doi: 10.1007/s11708-009-0069-y

摘要： Gasification of peanut shell, sawdust and straw in supercritical or subcritical water has been studied in a batch reactor with the presence of a series of Raney-Ni and its mixture with ZnCl or Ca(OH). The main gas products were hydrogen, methane, carbon dioxide, and a small amount of carbon monoxide. Different types of Raney-Ni, containing different metal components such as Fe, Mo or Cr, have different influences on the gasification yield and hydrogen selectivity. The catalysis effect can be improved obviously by adding ZnCl or Ca(OH). Increasing the reaction temperature or adding ZnCl and Ca(OH) could improve the mass of H in gas products and reduce the mass of CH and CO at the same time. The possible mechanism is that ZnCl can decompose the biomass particle by accelerating cellulose hydrolyzation in high-temperature water, increasing more specific surface to admit catalysts, while Ca(OH) can absorb CO to produce CaCO deposit, which can drop out from the reactant system, and which will drive the reaction to get more hydrogen. With respect to the biomass conversion to gas product and selectivity of H at low temperature, the series of Raney-Ni has shown many advantages over other catalysts; thus, this kind of catalyst has great potential to be utilized in the hydrogen industry for the gasification of biomass.

关键词： Different     presence     sawdust     Raney-Ni     Gasification    

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Hydrogen production from co-gasification of coal and biomass in supercritical water by continuous flow

YAN Qiuhui, GUO Liejin, LIANG Xing, ZHANG Ximin

《能源前沿（英文）》 2007年 第1卷 第3期   页码 327-330 doi: 10.1007/s11708-007-0048-0

摘要： Hydrogen is a clean energy carrier. Converting abundant coal sources and green biomass energy into hydrogen effectively and without any pollution promotes environmental protection. The co-gasification performance of coal and a model compound of biomass, carboxymethylcellulose (CMC) in supercritical water (SCW), were investigated experimentally. The influences of temperature, pressure and concentration on hydrogen production from co-gasification of coal and CMC in SCW under the given conditions (20–25 MPa, 650vH, 15–30 s) are discussed in detail. The experimental results show that H, CO and CH are the main gas products, and the molar fraction of hydrogen reaches in excess of 60%. The higher pressure and higher CMC content facilitate hydrogen production; production is decreased remarkably given a longer residence time.

关键词： carboxymethylcellulose     temperature     co-gasification performance     Hydrogen     residence    

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生物质颗粒燃料生产线及其关键制造技术的研究与开发

朱典想

《中国工程科学》 2014年 第16卷 第4期   页码 13-16

摘要：

生物质颗粒燃料（俗称木煤）作为生物质能源转化的一个重要领域，越来越受到人们的关注。本文对生物质颗粒燃料的燃烧特性、节能减排效果、制造工艺技术、关键生产设备进行了研究与开发，并在此基础上最终建成了规模化（年产2.0×105 t）、低成本的木煤生产线，对推动我国木煤产业的健康发展具有重要的示范意义。

关键词： 生物质颗粒燃料     燃烧特性     节能减排     生产线     生产工艺     关键设备    

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RESEARCH PROGRESS ON THE IMPACT OF NITROGEN DEPOSITION ON GLOBAL GRASSLANDS

《农业科学与工程前沿（英文）》 2022年 第9卷 第3期   页码 425-444 doi: 10.15302/J-FASE-2022457

摘要：

● Grasslands in many regions of the world have been impacted by atmospheric nitrogen deposition.

关键词： Acidification     biomass production     critical load     eutrophication     species composition     species richness    

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Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China

Hui RAN,Shaozhong KANG,Fusheng LI,Ling TONG,Taisheng DU

《农业科学与工程前沿（英文）》 2016年 第3卷 第1期   页码 55-64 doi: 10.15302/J-FASE-2016091

摘要： Scientific irrigation and nitrogen management is important for agricultural production in arid areas. To quantify the effect of water and nitrogen management on yield components, biomass partitioning and harvest index ( ) of maize for seed production with plastic film-mulching, field experiments including different irrigation and N treatments were conducted in arid north-west China in 2013 and 2014. The results indicated that kernel number per plant ( ) was significantly affected by irrigation and N treatments. However, 100-kernel weight was relatively stable. Reducing irrigation quantity significantly increased stem partitioning index ( ) and leaf partitioning index ( ), and decreased ear partitioning index ( ) at harvest, but lowering N rate (from 500 to 100 kg N·hm ) did not significantly reduce , , and at harvest. was significantly reduced by reducing irrigation quantity, but not by reducing N rate. Linear relationships were found between , , , at harvest and and evapotranspiration ( ).

关键词： yield components     biomass partitioning     harvest index     irrigation     nitrogen     maize for seed production    

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Cobalt nitride enabled benzimidazoles production from furyl/aryl bio-alcohols and -nitroanilines without

《化学科学与工程前沿（英文）》 2023年 第17卷 第1期   页码 68-81 doi: 10.1007/s11705-022-2174-y

摘要： Benzimidazole derivatives have wide-spectrum biological activities and pharmacological effects, but remain challenging to be produced from biomass feedstocks. Here, we report a green hydrogen transfer strategy for the efficient one-pot production of benzimidazoles from a wide range of bio-alcohols and o-nitroanilines enabled by cobalt nitride species on hierarchically porous and recyclable nitrogen-doped carbon catalysts (Co/CNx-T, T denotes the pyrolysis temperature) without using an external hydrogen source and base additive. Among the tested catalysts, Co/CNx-700 exhibited superior catalytic performance, furnishing 2-substituted benzimidazoles in 65%–92% yields. Detailed mechanistic studies manifest that the coordination between Co2+ and N with appropriate electronic state on the porous nitrogen-doped carbon having structural defects, as well as the remarkable synergetic effect of Co/N dual sites contribute to the pronounced activity of Co/CNx-700, while too high pyrolysis temperature may cause the breakage of the catalyst Co–N bond to lower down its activity. Also, it is revealed that the initial dehydrogenation of bio-alcohol and the subsequent cyclodehydrogenation are closely correlated with the hydrogenation of nitro groups. The catalytic hydrogen transfer-coupling protocol opens a new avenue for the synthesis of N-heterocyclic compounds from biomass.

关键词： biomass conversion     furanic compounds     benzimidazoles     hydrogen transfer     bifunctional catalysis    

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Experimental research on catalysts and their catalytic mechanism for hydrogen production by gasification

PEI Aixia, GUO Liejin, JIN Hui

《能源前沿（英文）》 2007年 第1卷 第4期   页码 451-456 doi: 10.1007/s11708-007-0066-2

摘要： Peanut shell, mixed with sodium carboxymethylcellulose, was gasified at a temperature of 450°C and a pressure range from 24 to 27 MPa with the presence of different catalysts, including KCO, ZnCl and Raney-Ni. The experimental results show that different catalysts have greatly different effects on the reaction. Gasification efficiency (GE), hydrogen gasification efficiency (GHE), carbon gasification efficiency (GCE), yield of hydrogen production ( ) and potential yield of hydrogen production () are applied to describe the catalytic efficiency. From the result of gaseous components, ZnCl has the highest hydrogen selectivity, KCO is lower, and Raney-Ni is the lowest, but Raney-Ni is the most favorable to gasify biomass among the three catalysts, and its , , reach 126.84%, 185.71%, 94.24%, respectively. As expected, hydrogen selectivity increased and CH reduced rapidly when the mixture of ZnCl and Raney-Ni is used under the same condition. The optimization mixture appeared when 0.2 g of ZnCl was added to 1 g of Raney-Ni, 43.56 g · kg of hydrogen pro duction was obtained. In addition, the catalytic mechanisms of different catalysts were analyzed, and the possible reaction pathway was brought forward, which helped to explain the experiment phenomena and results correctly.

关键词： presence     Raney-Ni     biomass     optimization mixture     possible reaction    

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生物质发电、制氢以及低温电化学研究进展综述 Review

刘伟, 刘聪敏, Parikshit Gogoi, 邓渝林

《工程（英文）》 2020年 第6卷 第12期   页码 1351-1363 doi: 10.1016/j.eng.2020.02.021

摘要：

生物质是指储存化学能和太阳能的植物或动物材料，传统上被广泛应用于产热和各种工业过程。生物质中含有大量的氢元素，是制氢的极好原材料。因此，生物质是发电或制氢的可持续来源。虽然生物质发电厂和生物质转化厂已经商业化，但如何开发更有效、更经济的技术来进一步提高生物质转化效率和减少这些电厂对环境的影响，仍然是一项艰巨的挑战。利用生物质液体燃料电池技术将生物质直接转化为电能和在低温下通过电解将生物质转化为氢气的技术是近年来人们关注的两个新兴的研究领域。本文首先简要介绍了生物质转化为电能和氢能的传统技术，然后详细介绍了生物质液体燃料电池（FBFC）和生物质电解制氢（BEHP）的最新研究进展，并讨论了这两个领域进一步发展将面临的挑战。

关键词： 生物质     液流电池     燃料电池     制氢     电解    

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Reconsideration on the effect of nitrogen on mixed culture polyhydroxyalkanoate production toward high

Zhiqiang Chen, Lizhi Zhao, Ye Ji, Qinxue Wen, Long Huang

《环境科学与工程前沿（英文）》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1135-2

摘要：

Effect of nitrogen on mixed culture PHA production was reconsidered.

Enrichment history of PHA accumulating culture was discussed.

Higher PHA content and biomass growth were achieved in presence of nitrogen.

Enrichment strategy toward higher PHA accumulation was investigated.

Microbial community succession in PHA accumulation phase was investigated.

关键词： Polyhydroxyalkanoate (PHA)     Organic loading rate     Nitrogen content     Biomass growth     Enrichment history    

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characterization of eight freshwater green algae strains for synchronous water purification and lipid production

Jingjing ZHAN,Qiao ZHANG,Momei QIN,Yu HONG

《环境科学与工程前沿（英文）》 2016年 第10卷 第3期   页码 548-558 doi: 10.1007/s11783-016-0831-4

摘要： The objective of this study is to select and characterize the candidate for synchronous water purification and lipid production from eight freshwater microalgae strains ( sp. HQ, , , , , , , sp. LX1). The strains sp. HQ, . , and . showed superiority in biomass accumulation, while the top biomass producers did not correspond to the top lipid producers. achieved higher lipid content (66.1%), and sp. HQ and ranked down in sequence, with lipid content above 30%. Considering nutrient removal ability (total nitrogen (TN): 52.97%; total phosphorus (TP): 84.81%), the newly isolated microalga sp. HQ was the possible candidate for water purification coupled with lipid production. To further investigate the lipid producing and nutrient removal mechanism of candidate microalga, the ultra structural changes especially the lipid droplets under different water qualities (different TN and TP concentrations) were characterized. The results elucidate the nutrient-deficiency (TN: 3.0 mg·L ; TP: 0.3 mg·L ) condition was in favor of forming lipid bodies in sp. HQ at the sub-cellular level, while the biomass production was inhibited due to the decrease in chloroplast number which could further suppress the nutrient removal effect. Finally, a two-phase cultivation process (a nutrient replete phase to produce biomass followed by a nutrient deplete phase to enhance lipid content) was conducted in a photo-bioreactor for sp. HQ to serve for algae-based synchronous biodiesel production and wastewater purification.

关键词： freshwater microalgae     biomass production     lipid accumulation     nutrient removal    

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Will biomass be used for bioenergy or transportation biofuels?What drivers will influence biomass allocation

Jinguang HU, William James CADHAM, Susan van DYK, Jack N. SADDLER

《农业科学与工程前沿（英文）》 2017年 第4卷 第4期   页码 473-481 doi: 10.15302/J-FASE-2017168

摘要： Potential competition for biomass for current and future bioenergy/biofuel uses in Brazil, Denmark, Sweden and the USA were compared. In each of these countries, bioenergy and biofuels are already important in their energy mix. However, there is limited competition for biomass between bioenergy (heat/power/residential/industrial) and transportation biofuel applications. This situation is likely to continue until advanced biofuel technology becomes much more commercially established. In each of these countries, biomass is predominantly used to produce bioenergy, even in those regions where biofuels are significant component of their transportation sector (Brazil, Sweden and USA). The vast majority of biofuel production continues to be based on sugar, starch and oil rich feedstocks, while bioenergyis produced almost exclusively from forest biomass with agricultural biomass having a small, but increasing, secondary role. Current and proposed commercial scale biomass-to-ethanol facilities almost exclusively use agriculture derived residues (corn stover/wheat straw/sugarcane bagasse). Competition for biomass feedstocks for bioenergy/biofuel applications, is most likely to occur for agricultural biomass with coproduct lignin and other residues used to concomitantly produce heat and electricity on site at biofuel production facilities.

关键词： bioenergy     biofuel     biomass     renewable energy policy    

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标题 作者 时间 类型 操作

A review on co-pyrolysis of agriculture biomass and disposable medical face mask waste for green fuelproduction: recent advances and thermo-kinetic models

期刊论文

Catalytic steam reforming of tar for enhancing hydrogen production from biomass gasification: a review

Ru Shien TAN, Tuan Amran TUAN ABDULLAH, Anwar JOHARI, Khairuddin MD ISA

期刊论文

AGRI-ENVIRONMENTAL ASSESSMENT OF CONVENTIONAL AND ALTERNATIVE BIOENERGY CROPPING SYSTEMS PROMOTING BIOMASS

期刊论文

Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction

期刊论文

Hydrogen production by biomass gasification in supercritical or subcritical water with Raney-Ni and other

Aixia PEI, Lisheng ZHANG, Bizheng JIANG, Liejin GUO, Ximin ZHANG, Youjun LV, Hui JIN,

期刊论文

Hydrogen production from co-gasification of coal and biomass in supercritical water by continuous flow

YAN Qiuhui, GUO Liejin, LIANG Xing, ZHANG Ximin

期刊论文

生物质颗粒燃料生产线及其关键制造技术的研究与开发

朱典想

期刊论文

RESEARCH PROGRESS ON THE IMPACT OF NITROGEN DEPOSITION ON GLOBAL GRASSLANDS

期刊论文

Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China

Hui RAN,Shaozhong KANG,Fusheng LI,Ling TONG,Taisheng DU

期刊论文

Cobalt nitride enabled benzimidazoles production from furyl/aryl bio-alcohols and -nitroanilines without

期刊论文

Experimental research on catalysts and their catalytic mechanism for hydrogen production by gasification

PEI Aixia, GUO Liejin, JIN Hui

期刊论文

生物质发电、制氢以及低温电化学研究进展综述

刘伟, 刘聪敏, Parikshit Gogoi, 邓渝林

期刊论文

Reconsideration on the effect of nitrogen on mixed culture polyhydroxyalkanoate production toward high

Zhiqiang Chen, Lizhi Zhao, Ye Ji, Qinxue Wen, Long Huang

期刊论文

characterization of eight freshwater green algae strains for synchronous water purification and lipid production

Jingjing ZHAN,Qiao ZHANG,Momei QIN,Yu HONG

期刊论文

Will biomass be used for bioenergy or transportation biofuels?What drivers will influence biomass allocation

Jinguang HU, William James CADHAM, Susan van DYK, Jack N. SADDLER

期刊论文