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Life cycle analysis and choice of natural gas-based automotive alternative fuels in Chongqing Municipality

WU Rui, LI Guangyi, ZHANG Zongyi, REN Yulong, HAN Weijian

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 292-298 doi: 10.1007/s11783-007-0049-6

Abstract: A reduction of emissions can be achieved by implementing alternative fuel chains.carry out an economic, environmental and energy (EEE) life cycle study on natural gas-based automotive fuelsA set of indices of four fuels/vehicle systems on the basis of life cycle are assessed in terms of impact

Keywords： dedicated     primary     economic     alternative     abundant    

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Continuous flow pyrolysis of virgin and waste polyolefins: a comparative study, process optimization and product characterization

Frontiers of Chemical Science and Engineering doi: 10.1007/s11705-024-2429-x

Abstract: Under optimal process conditions, pyrolysis of polyolefins can yield ca. 90 wt % of liquid product, i.e., combination of light oil fraction and heavier wax. In this work, the experimental findings reported in a selected group of publications concerning the non-catalytic pyrolysis of polyolefins were collected, reviewed, and compared with the ones obtained in a continuously operated bench-scale pyrolysis reactor. Optimized process parameters were used for the pyrolysis of waste and virgin counterparts of high-density polyethylene, low-density polyethylene, polypropylene and a defined mixture of those (i.e., 25:25:50 wt %, respectively). To mitigate temperature drops and enhance heat transfer, an increased feed intake is employed to create a hot melt plastic pool. With 1.5 g·min–1 feed intake, 1.1 L·min–1 nitrogen flow rate, and a moderate pyrolysis temperature of 450 °C, the formation of light hydrocarbons was favored, while wax formation was limited for polypropylene-rich mixtures. Pyrolysis of virgin plastics yielded more liquid (maximum 73.3 wt %) than that of waste plastics (maximum 66 wt %). Blending polyethylenes with polypropylene favored the production of liquids and increased the formation of gasoline-range hydrocarbons. Gas products were mainly composed of C3 hydrocarbons, and no hydrogen production was detected due to moderate pyrolysis temperature.

Keywords： waste plastics     polyolefins     chemical recycling     pyrolysis     alternative fuels     waste-to-energy    

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Transportation: meeting the dual challenges of achieving energy security and reducing greenhouse gas emissions

Michael Quanlu WANG, Hong HUO

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 212-225 doi: 10.1007/s11708-009-0016-y

Abstract: issue both countries face and are addressing is energy insecurity as a result of the demand for liquid fuelsImprovements in the energy efficiency of vehicles and the substitution of petroleum fuels with alternativefuels can help contain growth in the demand for transportation oil.Although most alternative transportation fuels - when applied to advanced vehicle technologies - cansubstantially reduce greenhouse emissions, coal-based liquid fuels may increase greenhouse gas emissions

Keywords： transportation energy     energy security     greenhouse gases     alternative fuels     vehicle technologies    

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Automobile fuel saving without delay

Hu Xiaochun,Zhang Baoji,Jiang Fukang,Wang Xieqing

Strategic Study of CAE 2013, Volume 15, Issue 10,   Pages 10-15

Abstract: improve the quality of fuel, to speed up the elimination of old model vehicles, and actively develop alternativefuels, vigorously develop public transport and modern logistics are the effective way of China's

Keywords： automobile fuel-saving     fuel economy     alternative fuels     new energy     public transport     policy measures    

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Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 819-837 doi: 10.1007/s11705-021-2122-2

Abstract: With the increasing demand for high-performance and safe fuels in aerospace propulsion systems, gelledfuels have attracted increasing attention.Because of their unique structure, gelled fuels exhibit the advantages of both solid and liquid fuelsThis review provides an overview on design, preparation and performance characterization of gelled fuelsFinally, research directions for the development and application of gelled fuels are suggested.

Keywords： gelled fuels     high-energy-density fuels     rheological properties     atomization     combustion    

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Linking renewables and fossil fuels with carbon capture via energy storage for a sustainable energy future

Dawid P. Hanak, Vasilije Manovic

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 453-459 doi: 10.1007/s11705-019-1892-2

Abstract: Renewable energy sources and low-carbon power generation systems with carbon capture and storage (CCS) are expected to be key contributors towards the decarbonisation of the energy sector and to ensure sustainable energy supply in the future. However, the variable nature of wind and solar power generation systems may affect the operation of the electricity system grid. Deployment of energy storage is expected to increase grid stability and renewable energy utilisation. The power sector of the future, therefore, needs to seek a synergy between renewable energy sources and low-carbon fossil fuel power generation. This can be achieved via wide deployment of CCS linked with energy storage. Interestingly, recent progress in both the CCS and energy storage fields reveals that technologies such as calcium looping are technically viable and promising options in both cases. Novel integrated systems can be achieved by integrating these applications into CCS with inherent energy storage capacity, as well as linking other CCS technologies with renewable energy sources via energy storage technologies, which will maximise the profit from electricity production, mitigate efficiency and economic penalties related to CCS, and improve renewable energy utilisation.

Keywords： carbon capture     energy storage     renewable energy sources     decarbonisation     fossil fuels    

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metal oxide semiconductor photocatalysts in photo-electrochemical conversion of carbon dioxide into fuels

Frontiers in Energy 2024, Volume 18, Issue 2,   Pages 187-205 doi: 10.1007/s11708-024-0939-3

Abstract: photocatalysts have extensively been used for photocatalytic conversion of carbon dioxide (CO2) into fuelsoxide semiconductor hybrid photocatalysts-based photo-electrochemical conversion of CO2 into fuelsFirst, general mechanism of photo-electrochemical conversion of CO2 into fuels or other usefulmechanism of their photo-electrochemical reactions and applications in CO2 conversion into fuels

Keywords： nanohybrid photocatalysts     photo-electrochemical CO2 conversion     tailoring morphology     fuels    

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Oxidative desulfurization of fuels using ionic liquids: A review? ?

Hua Zhao,Gary A. Baker

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3,   Pages 262-279 doi: 10.1007/s11705-015-1528-0

Abstract: proven to be one of the most effective desulfurization methods for producing ultra-low sulfur content fuelssolvents, ionic liquids (ILs) have attracted considerable attention for the oxidative desulfurization of fuels

Keywords： oxidative desulfurization     ionic liquids     extraction     fuels     petroleum     polyoxometalates    

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Biofuel as an alternative to oil—current industry progress and sustainable development

Li Shizhong

Strategic Study of CAE 2011, Volume 13, Issue 2,   Pages 50-56

Abstract: For the purpose of a sustainable social-economic development, biofuel is the most viable alternative

Keywords： biofuel     alternative to oil     transport     development    

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Evaluation of the contract reliability for alternative infrastructure project delivery: a contract engineering

Bing WANG, Qingbin CUI, Shuibo ZHANG

Frontiers of Engineering Management 2019, Volume 6, Issue 2,   Pages 239-248 doi: 10.1007/s42524-019-0018-3

Abstract: levels are increasingly motivating the private sector to participate in infrastructure development using alternative

Keywords： infrastructure development     contract design     contract reliability     guarantee provision     contract engineering    

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Catalytic cracking of endothermic fuels in coated tube reactor

LI Jia, ZOU Jijun, ZHANG Xiangwen, GUO Wei, MI Zhentao

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 181-185 doi: 10.1007/s11705-008-0032-1

Abstract: In the coated reactor, cracking of endothermic fuels including -dodecane and aviation fuel RP-3 was carried

Keywords： HZSM-5     self-made ceramic-like     gas-aided     Conversion     Suspensoid    

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A naive optimization method for multi-line systems with alternative machines

Weichang KONG, Fei QIAO, Qidi WU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 377-392 doi: 10.1007/s11465-019-0544-z

Abstract: Consequently, optimization of multi-line systems with alternative machines requires a simple mechanismTo define a general multi-line system with alternative machines, this study introduces the capability

Keywords： multi-line systems     alternative machines     feedback control     closed-loop optimization    

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

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 284-294 doi: 10.15302/J-FASE-2021435

Abstract:

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.

Keywords： alternative cropping systems / bioeconomy / biogas / biomass production / fertilization autonomy / greenhouse    

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High frequency of alternative splicing variants of the oncogene in neuroendocrine tumors of the pancreas

Frontiers of Medicine 2023, Volume 17, Issue 5,   Pages 907-923 doi: 10.1007/s11684-023-1009-7

Abstract: The characteristic genetic abnormality of neuroendocrine neoplasms (NENs), a heterogeneous group of tumors found in various organs, remains to be identified. Here, based on the analysis of the splicing variants of an oncogene Focal Adhesion Kinase (FAK) in The Cancer Genome Atlas datasets that contain 9193 patients of 33 cancer subtypes, we found that Box 6/Box 7-containing FAK variants (FAK6/7) were observed in 7 (87.5%) of 8 pancreatic neuroendocrine carcinomas and 20 (11.76%) of 170 pancreatic ductal adenocarcinomas (PDACs). We tested FAK variants in 157 tumor samples collected from Chinese patients with pancreatic tumors, and found that FAK6/7 was positive in 34 (75.6%) of 45 pancreatic NENs, 19 (47.5%) of 40 pancreatic solid pseudopapillary neoplasms, and 2 (2.9%) of 69 PDACs. We further tested FAK splicing variants in breast neuroendocrine carcinoma (BrNECs), and found that FAK6/7 was positive in 14 (93.3%) of 15 BrNECs but 0 in 23 non-NEC breast cancers. We explored the underlying mechanisms and found that a splicing factor serine/arginine repetitive matrix protein 4 (SRRM4) was overexpressed in FAK6/7-positive pancreatic tumors and breast tumors, which promoted the formation of FAK6/7 in cells. These results suggested that FAK6/7 could be a biomarker of NENs and represent a potential therapeutic target for these orphan diseases.

Keywords： FAK6/7     SRRM4     neuroendocrine neoplasms     pancreas     breast    

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Deep desulfurization of diesel fuels by catalytic oxidation

YU Guoxian, CHEN Hui, LU Shanxiang, ZHU Zhongnan

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 162-166 doi: 10.1007/s11705-007-0030-8

Abstract: by dissolving dibenzothiophene (DBT), which was selected as a model organosulfur compound in diesel fuels

Keywords： organosulfur compound     performic     presence     activated     hydrogen peroxide    

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Title Author Date Type Operation

Life cycle analysis and choice of natural gas-based automotive alternative fuels in Chongqing Municipality

WU Rui, LI Guangyi, ZHANG Zongyi, REN Yulong, HAN Weijian

Journal Article

Continuous flow pyrolysis of virgin and waste polyolefins: a comparative study, process optimization and product characterization

Journal Article

Transportation: meeting the dual challenges of achieving energy security and reducing greenhouse gas emissions

Michael Quanlu WANG, Hong HUO

Journal Article

Automobile fuel saving without delay

Hu Xiaochun,Zhang Baoji,Jiang Fukang,Wang Xieqing

Journal Article

Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

Journal Article

Linking renewables and fossil fuels with carbon capture via energy storage for a sustainable energy future

Dawid P. Hanak, Vasilije Manovic

Journal Article

metal oxide semiconductor photocatalysts in photo-electrochemical conversion of carbon dioxide into fuels

Journal Article

Oxidative desulfurization of fuels using ionic liquids: A review? ?

Hua Zhao,Gary A. Baker

Journal Article

Biofuel as an alternative to oil—current industry progress and sustainable development

Li Shizhong

Journal Article

Evaluation of the contract reliability for alternative infrastructure project delivery: a contract engineering

Bing WANG, Qingbin CUI, Shuibo ZHANG

Journal Article

Catalytic cracking of endothermic fuels in coated tube reactor

LI Jia, ZOU Jijun, ZHANG Xiangwen, GUO Wei, MI Zhentao

Journal Article

A naive optimization method for multi-line systems with alternative machines

Weichang KONG, Fei QIAO, Qidi WU

Journal Article

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

Journal Article

High frequency of alternative splicing variants of the oncogene in neuroendocrine tumors of the pancreas

Journal Article

Deep desulfurization of diesel fuels by catalytic oxidation

YU Guoxian, CHEN Hui, LU Shanxiang, ZHU Zhongnan

Journal Article