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Revealing the GHG reduction potential of emerging biomass-based CO utilization with an iron cycle system

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1727-8

Abstract:

● Greenhouse gas mitigation by biomass-based CO2 utilization with a Fe cycle system.

Keywords： Carbon dioxide utilization     Hydrothermal reactions     Biomass-based CO2 reduction     Simulation     Ex-anteLCA    

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Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 287-296 doi: 10.1007/s11705-010-0529-2

Abstract: The development and application of ex-situ presulfurization (EPRES) technology for hydrotreating catalysts

Keywords： ex-situ presulfurization     in situ presulfurization     hydrotreating catalyst     sulfur utilization ratio    

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A review on

Shaolong WAN,Yong WANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 280-294 doi: 10.1007/s11705-014-1436-8

Abstract: Catalytic fast pyrolysis (CFP) is deemed as the most promising way to convert biomass to transportation fuels or value added chemicals. Most works in literature so far have focused on the CFP where the catalysts are packed or co-fed with the feedstock in the pyrolysis reactor. However, the CFP with catalysts separated from the pyrolyzer has attracted more and more attentions due to its unique advantages of individually optimizing the pyrolysis conditions and catalyst performances. This review compares the differences between the and CFP operation, and summarizes the development and progress of CFP applications, including the rationale and performances of different catalysts, and the choices of suitable reactor systems. Due to the complex composition of bio-oil, no single approach was believed to be able to solve the problems completely among all those existing technologies. With the increased understanding of catalyst performances and reaction process, the recent trend toward an integration of biomass or bio-oil fractionation with subsequent thermo/bio-chemical conversion routes is also discussed.

Keywords： catalytic fast pyrolysis     ex situ     catalysts    

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Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective

Frontiers in Energy doi: 10.1007/s11708-023-0909-1

Abstract: The hydrogen fuel cell vehicle is rapidly developing in China for carbon reduction and neutrality. This paper evaluated the life-cycle cost and carbon emission of hydrogen energy via lots of field surveys, including hydrogen production and packing in chlor-alkali plants, transport by tube trailers, storage and refueling in hydrogen refueling stations (HRSs), and application for use in two different cities. It also conducted a comparative study for battery electric vehicles (BEVs) and internal combustion engine vehicles (ICEVs). The result indicates that hydrogen fuel cell vehicle (FCV) has the best environmental performance but the highest energy cost. However, a sufficient hydrogen supply can significantly reduce the carbon intensity and FCV energy cost of the current system. The carbon emission for FCV application has the potential to decrease by 73.1% in City A and 43.8% in City B. It only takes 11.0%–20.1% of the BEV emission and 8.2%–9.8% of the ICEV emission. The cost of FCV driving can be reduced by 39.1% in City A. Further improvement can be obtained with an economical and “greener” hydrogen production pathway.

Keywords： hydrogen energy     life-cycle assessment (LCA)     fuel cell vehicle     carbon emission     energy cost    

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Carbon footprint assessment for the waste management sector: A comparative analysis of China and Japan

Lu SUN, Zhaoling LI, Minoru FUJII, Yasuaki HIJIOKA, Tsuyoshi FUJITA

Frontiers in Energy 2018, Volume 12, Issue 3,   Pages 400-410 doi: 10.1007/s11708-018-0565-z

Abstract:

Waste management is becoming a crucial issue in modern society owing to rapid urbanization and the increasing generation of municipal solid waste (MSW). This paper evaluates the carbon footprint of the waste management sector to identify direct and indirect carbon emissions, waste recycling carbon emission using a hybrid life cycle assessment and input-output analysis. China and Japan was selected as case study areas to highlight the effects of different industries on waste management. The results show that the life cycle carbon footprints for waste treatment are 59.01 million tons in China and 7.01 million tons in Japan. The gap between these footprints is caused by the different waste management systems and treatment processes used in the two countries. For indirect carbon footprints, China’s material carbon footprint and depreciation carbon footprint are much higher than those of Japan, whereas the purchased electricity and heat carbon footprint in China is half that of Japan. China and Japan have similar direct energy consumption carbon footprints. However, CO2 emissions from MSW treatment processes in China (46.46 million tons) is significantly higher than that in Japan (2.72 million tons). The corresponding effects of waste recycling on CO2 emission reductions are considerable, up to 181.37 million tons for China and 96.76 million tons for Japan. Besides, measures were further proposed for optimizing waste management systems in the two countries. In addition, it is argued that the advanced experience that developed countries have in waste management issues can provide scientific support for waste treatment in developing countries such as China.

Keywords： waste management     waste recycling     carbon footprint     hybrid LCA    

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Toward the development of process plans with reduced environmental impacts

Fu ZHAO, Vance R. MURRAY, Karthik RAMANI, John W. SUTHERLAND

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 231-246 doi: 10.1007/s11465-012-0334-3

Abstract:

Manufacturing process planning serves as a pivotal link between design and manufacturing. Process planning decisions play a critical role in determining the cost and environmental impacts associated with manufacturing. Past efforts to address environmental issues during process planning are briefly reviewed and potential approaches that can achieve reduced environmental impacts are then discussed. A proposed method is presented for environmentally conscious process planning. The method begins with an existing process plan, and then identifies impactful process steps, and associated design features, in terms of manufacturing cost and environmental impact. Alternative processes that can achieve these features are then considered to generate alternative process plans. These alternatives are then evaluated in terms of economic and environmental performance. The results of these evaluations are then used to generate a set of process plans that are non-dominated with respect to manufacturing cost and environmental impact objectives to produce a Pareto frontier. The proposed method is demonstrated using the manufacturing of a prosthetic hip shell as a case study.

Keywords： process planning     life cycle assessment (LCA)     sustainable manufacturing     prosthetic hip shell    

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Life-cycle analysis of energy use and greenhouse gas emissions of gas-to-liquid fuel pathway from steel mill off-gas in China by the LanzaTech process

Xunmin OU, Xu ZHANG, Qian ZHANG, Xiliang ZHANG

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 263-270 doi: 10.1007/s11708-013-0263-9

Abstract: The life-cycle analysis (LCA) of energy use and greenhouse gas emissions from the LanzaTech process hasbeen developed for a Chinese setting using the original Tsinghua China Automotive LCA model along withThe LCA results demonstrate that LanzaTech gas-to-liquid (GTL) processing in China’s steel manufacturing

Keywords： life-cycle analysis (LCA)     gas-to-liquid (GTL)     LanzaTech process    

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Life cycle assessment of low impact development technologies combined with conventional centralized water systems for the City of Atlanta, Georgia

Hyunju Jeong, Osvaldo A. Broesicke, Bob Drew, Duo Li, John C. Crittenden

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0851-0

Abstract: We performed a life cycle assessment (LCA) comparison of CS and HS using TRACI 2.1 to simulate impactsTest results indicate that HS has a higher LCA single score than CS in zones with a low population density

Keywords： Life cycle assessment (LCA)     Low impact development (LID)     Bioretention area     Rainwater harvesting     Xeriscaping    

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Neurolemma-Injected Xenopus Oocytes: An Innovative Ex Vivo Approach to Study the Effects Review

John Clark, Steve Symington

Engineering 2020, Volume 6, Issue 5,   Pages 515-521 doi: 10.1016/j.eng.2019.10.017

Abstract: Microtransplantation of rat brain neurolemma into the plasma membrane of Xenopus laevis oocytes is an exThese changes established this ex vivo approach as a toxicologically relevant assay to study

Keywords： Microtransplantation     Pyrethroids     Rat brain neurolemma     Toxicodynamics     Voltage-sensitive sodium channels     Xenopus laevis    

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Title Author Date Type Operation

Revealing the GHG reduction potential of emerging biomass-based CO utilization with an iron cycle system

Journal Article

Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Journal Article

A review on

Shaolong WAN,Yong WANG

Journal Article

Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective

Journal Article

Carbon footprint assessment for the waste management sector: A comparative analysis of China and Japan

Lu SUN, Zhaoling LI, Minoru FUJII, Yasuaki HIJIOKA, Tsuyoshi FUJITA

Journal Article

Toward the development of process plans with reduced environmental impacts

Fu ZHAO, Vance R. MURRAY, Karthik RAMANI, John W. SUTHERLAND

Journal Article

Life-cycle analysis of energy use and greenhouse gas emissions of gas-to-liquid fuel pathway from steel mill off-gas in China by the LanzaTech process

Xunmin OU, Xu ZHANG, Qian ZHANG, Xiliang ZHANG

Journal Article

Life cycle assessment of low impact development technologies combined with conventional centralized water systems for the City of Atlanta, Georgia

Hyunju Jeong, Osvaldo A. Broesicke, Bob Drew, Duo Li, John C. Crittenden

Journal Article

Neurolemma-Injected Xenopus Oocytes: An Innovative Ex Vivo Approach to Study the Effects

John Clark, Steve Symington

Journal Article