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CFD simulation of the hydrodynamics in an internal air-lift reactor with two different configurations

Mona EBRAHIMIFAKHAR, Elmira MOHSENZADEH, Sadegh MORADI, Mostafa MORAVEJI, Mahmoud SALIMI

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 455-462 doi: 10.1007/s11705-011-1116-x

Abstract: Simulated gas holdup and liquid circulation velocity results were compared with experimental data.

Keywords： airlift reactor     gas holdup     liquid circulation velocity     bubbly flow     computational fluid dynamics (CFD)    

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Mass Transfer, Gas Holdup, and Kinetic Models of Batch and Continuous Fermentation in a Novel Rectangular Article

Ganlu Li, Kequan Chen, Yanpeng Wei, Jinlei Zeng, Yue Yang, Feng He, Hui Li, Pingkai Ouyang

Engineering 2022, Volume 13, Issue 6,   Pages 153-163 doi: 10.1016/j.eng.2021.07.025

Abstract: bubbles to enhance the volumetric oxygen mass transfer coefficient (kLa) and gasholdup, as well as improve the bioprocess in a bioreactor.In this study, we compared mass transfer, gas holdup, and batch and continuous fermentation for RNA productionDeveloping new aeration and structural geometry in airlift bioreactors to enhance kLa and gas holdup

Keywords： Airlift bioreactor     Dynamic membrane     Kinetic model     Batch fermentation     Continuous fermentation    

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CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 428-445 doi: 10.1007/s11708-023-0865-9

Abstract: flooding tests were conducted to investigate the performance of injecting different gases to enhance shale gasIn addition, when the CO2 concentration in the mixed gas exceeded 50%, the adsorption capacityof the mixed gas was greater than that of CH4, and had a strong competitive adsorption effectFor the core flooding tests, pure gas injection showed that the breakthrough time of CO2 wasmn>4 of CO2 gas

Keywords： shale gas     gas injection     competitive adsorption     enhanced shale gas recovery     CO2 geological    

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A novel methodology for forecasting gas supply reliability of natural gas pipeline systems

Feng CHEN, Changchun WU

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 213-223 doi: 10.1007/s11708-020-0672-5

Abstract: In this paper, a novel systematic and integrated methodology to assess gas supply reliability is proposedThe result of the gas pipeline system calculated is the average gas supply reliability in each typicalTo verify the feasibility, the method proposed is applied for a real natural gas pipelines network systemThe comparison of the results calculated and the actual gas supply reliability based on the filed datathe gas supply reliability from two dimensions of quantity and time.

Keywords： natural gas pipeline system     gas supply reliability     evaluation index     Monte Carlo method     hydraulic simulation    

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Life-cycle analysis of energy use and greenhouse gas emissions of gas-to-liquid fuel pathway from steelmill 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 hasThe LCA results demonstrate that LanzaTech gas-to-liquid (GTL) processing in China’s steel manufacturingis favorable in terms of life-cycle fossil energy and can reduce greenhouse gas emissions by approximatelyLanzaTech process, therefore, shows advantages in both energy-savings and a reduction in greenhouse gas

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

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Latest progress in numerical simulations on multiphase flow and thermodynamics in production of natural gasfrom gas hydrate reservoir

Lin ZUO, Lixia SUN, Changfu YOU

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 152-159 doi: 10.1007/s11708-009-0017-x

Abstract: Natural gas hydrates are promising potential alternative energy resources.studies on the multiphase flow and thermodynamics have been conducted to investigate the feasibility of gasThe methods for natural gas production are analyzed and several models describing the dissociation processA comprehensive numerical method considering the multiphase flow and thermodynamics of gas productionvarious hydrate-bearing reservoirs is required to better understand the dissociation process of natural gas

Keywords： numerical simulation     natural gas hydrate     dissociation     thermodynamics     multiphase flow    

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Key issues in development of offshore natural gas hydrate

Shouwei ZHOU, Qingping LI, Xin LV, Qiang FU, Junlong ZHU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 433-442 doi: 10.1007/s11708-020-0684-1

Abstract: As a new clean energy resource in the 21st century, natural gas hydrate is considered as one of the mostThis paper, based on the research progress in exploitation of natural gas hydrate (NGH) in China andthe world, systematically reviewed and discussed the key issues in development of natural gas hydratedescription and quantitative characterization of abundance in hydrate enrichment zone, and looking for gasThe ‘Three-gas co-production’ (natural gas hydrate, shallow gas, and conventional gas) may be an effective

Keywords： natural gas hydrate exploitation offshore     diagenetic and non-diagenetic hydrate     solid-state fluidizationmethod     dessert in enrichment area     three-gas combined production on gas hydrate abundance    

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Active-reactive power scheduling of integrated electricity-gas network with multi-microgrids

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 251-265 doi: 10.1007/s11708-022-0857-1

Abstract: Advances in natural gas-fired technologies have deepened the coupling between electricity and gas networks, promoting the development of the integrated electricity-gas network (IEGN) and strengthening the interactionbetween the active-reactive power flow in the power distribution network (PDN) and the natural gas flowin the gas distribution network (GDN).A test system consisting of an IEEE-33 test system and a 7-node natural gas network is adopted to verify

Keywords： combined cooling     heating     and power (CCHP)     integrated energy systems (IES)     natural gas     power distributionsystem     gas distribution system    

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Bioenergy recovery from landfill gas: A case study in China

Wei WANG, Yuxiang LUO, Zhou DENG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 20-31 doi: 10.1007/s11783-009-0012-9

Abstract: Landfill gas (LFG) utilization which means a synergy between environmental protection and bioenergy recoveryThe product gas was of high quality compared with the National Standard of Compressed Natural Gas asVehicle Fuel (GB18047-2000), when the air concentration in feed gas was under 10.96%.The drive performance, environmental protection performance, and economic feasibility of the product gas

Keywords： landfill gas (LFG)     compressed purified landfill gas (CPLG)     pressure swing adsorption (PSA)     alternative    

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The Fast Road of Shale Gas Development in China —Reflections on Building a Special Test Areas for NationalShale Gas Development

Da-wei Zhang

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 364-372 doi: 10.15302/J-FEM-2015062

Abstract: China’s shale gas development has had a good start.necessary that the developers take advantage of the opportunity to make further efforts to promote shale gasThe author makes a proposal to establish a special shale gas test area in and adjacent to the SichuanBasin as the most important way to promote the rapid development of shale gas in China.The shale gas exploration and development in the shale gas zones is promoted vigorously by introducing

Keywords： China     shale gas     exploration and development     reform     special shale gas test area (shale gas zone)    

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Technology Innovation and Practice of Green Exploitation Projects of Oil and Gas in the Western SichuanGas Field

Hong-yong Liu,Yi-qi Chen,Yi Yang

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 71-75 doi: 10.15302/J-FEM-2015010

Abstract: The green (environmentally friendly) project of mining oil and gas in the Western Sichuan area is basedPetrochemical Corporation, and it commits to form a complete set of technological developments in oil and gas

Keywords： oil and gas exploitation     green low-carbon     technology innovation     strategic thinking    

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GREENHOUSE GAS AND AMMONIA EMISSION MITIGATION PRIORITIES FOR UK POLICY TARGETS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 2,   Pages 268-280 doi: 10.15302/J-FASE-2023495

Abstract:

● An expert survey highlighted the most effective strategies for GHG and ammonia mitigation.

Keywords： agriculture     ammonia     greenhouse gas     mitigation     net zero    

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Simulation of combustion in spark-ignition engine fuelled with natural gas-hydrogen blends combined with

Jie WANG, Zuohua HUANG, Bing LIU, Xibin WANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 204-211 doi: 10.1007/s11708-009-0026-9

Abstract: EGR introduction strongly influences the gas temperature and NO concentration in the cylinder.The study shows that natural gas-hydrogen blend combined with EGR can realize a stable combustion and

Keywords： natural gas     hydrogen     NO     exhaust gas recirculation     numerical simulation    

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Research on the theory and application of adsorbed natural gas used in new energy vehicles: A review

Zhengwei NIE,Yuyi LIN,Xiaoyi JIN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 258-274 doi: 10.1007/s11465-016-0381-2

Abstract:

Natural gas, whose primary constituent is methane, has been considered a convincing alternative forAdsorbed natural gas (ANG), the most promising methane storage method, has been an active field of studyANG constitutes a safe and low-cost way to store methane for natural gas vehicles at an acceptable energy

Keywords： adsorbed natural gas (ANG)     adsorbent     adsorption theory     conformable tank     natural gas vehicles (NGVs)    

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Structural modeling of a typical gas turbine system

Naresh YADAV, Irshad Ahmad KHAN, Sandeep GROVER

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 57-79 doi: 10.1007/s11708-011-0164-8

Abstract: This paper presents an approach for the structural modeling and analysis of a typical gas turbine systemThis approach has been applied to the systems and subsystems, which are integral parts of a typical gasSince a gas turbine system performance is measured in terms of fluid flow energy transformations acrossAn attempt has been made to correlate the associativity of such subsystems contributing to overall gasleads to selection, identification and optimal evaluation of gas turbine systems.

Keywords： system modeling     gas turbine system evaluation     graph theoretic approach    

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Title Author Date Type Operation

CFD simulation of the hydrodynamics in an internal air-lift reactor with two different configurations

Mona EBRAHIMIFAKHAR, Elmira MOHSENZADEH, Sadegh MORADI, Mostafa MORAVEJI, Mahmoud SALIMI

Journal Article

Mass Transfer, Gas Holdup, and Kinetic Models of Batch and Continuous Fermentation in a Novel Rectangular

Ganlu Li, Kequan Chen, Yanpeng Wei, Jinlei Zeng, Yue Yang, Feng He, Hui Li, Pingkai Ouyang

Journal Article

CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

Journal Article

A novel methodology for forecasting gas supply reliability of natural gas pipeline systems

Feng CHEN, Changchun WU

Journal Article

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

Xunmin OU, Xu ZHANG, Qian ZHANG, Xiliang ZHANG

Journal Article

Latest progress in numerical simulations on multiphase flow and thermodynamics in production of natural gasfrom gas hydrate reservoir

Lin ZUO, Lixia SUN, Changfu YOU

Journal Article

Key issues in development of offshore natural gas hydrate

Shouwei ZHOU, Qingping LI, Xin LV, Qiang FU, Junlong ZHU

Journal Article

Active-reactive power scheduling of integrated electricity-gas network with multi-microgrids

Journal Article

Bioenergy recovery from landfill gas: A case study in China

Wei WANG, Yuxiang LUO, Zhou DENG

Journal Article

The Fast Road of Shale Gas Development in China —Reflections on Building a Special Test Areas for NationalShale Gas Development

Da-wei Zhang

Journal Article

Technology Innovation and Practice of Green Exploitation Projects of Oil and Gas in the Western SichuanGas Field

Hong-yong Liu,Yi-qi Chen,Yi Yang

Journal Article

GREENHOUSE GAS AND AMMONIA EMISSION MITIGATION PRIORITIES FOR UK POLICY TARGETS

Journal Article

Simulation of combustion in spark-ignition engine fuelled with natural gas-hydrogen blends combined with

Jie WANG, Zuohua HUANG, Bing LIU, Xibin WANG

Journal Article

Research on the theory and application of adsorbed natural gas used in new energy vehicles: A review

Zhengwei NIE,Yuyi LIN,Xiaoyi JIN

Journal Article

Structural modeling of a typical gas turbine system

Naresh YADAV, Irshad Ahmad KHAN, Sandeep GROVER

Journal Article