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Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 263-276 doi: 10.1007/s11708-021-0791-7

Abstract: The laminar flame speeds of ammonia mixed with syngas at a high pressure, temperature, and differentsyngas ratios were measured.The data obtained were fitted at different pressures, temperatures, syngas ratios, and equivalence ratiosPathway, sensitivity and radical pool analysis are conducted to find out the deep kinetic insight on ammoniaFurthermore, both ammonia oxidation and NO formation are sensitive to small radical reactions and ammonia

Keywords： ammonia mixed with syngas     laminar flame speed     kinetic model     sensitivity analysis     pathway analysis    

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Boosting the direct conversion of NHHCO electrolyte to syngas on Ag/Zn zeolitic imidazolate framework

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1196-1207 doi: 10.1007/s11705-022-2289-1

Abstract: The electrochemical reduction of NH4HCO3 to syngas can bypass the high energy consumptionof high-purity CO2 release and compression after the ammonia-based CO2 capturefor the first time for boosting the direct conversion of NH4HCO3 electrolyte to syngas

Keywords： zeolitic imidazolate framework     CO2 electroreduction     ammonium bicarbonate electrolyte     syngas    

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Syngas composition study

Zhe WANG , Jinning YANG , Zheng LI , Yong XIANG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 369-372 doi: 10.1007/s11708-009-0044-7

Abstract: The syngas composition characteristic was investigated in the real slurry-feed gasifier using a detailedThe results show that the time for syngas to reach equilibrium is much shorter than the residence time

Keywords： entrained-flow     gasifier     syngas    

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Abundance and distribution of ammonia-oxidizing archaea in Tibetan and Yunnan plateau agricultural soils

Kun DING,Xianghua WEN,Liang CHEN,Daishi HUANG,Fan FEI,Yuyang LI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 693-702 doi: 10.1007/s11783-014-0635-3

Abstract: To determine the abundance and distribution of ammonia-oxidizing archaea (AOA) in agricultural soil ofQuantitative PCR (q-PCR) and clone library targeting on gene were used to quantify the abundances of AOA and ammonia-oxidizing

Keywords： ammonia-oxidizing archaea     ammonia-oxidizing bacteria     quantitative PCR     clone library     plateau    

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Heat and mass transfer of ammonia-water in falling film evaporator

Xianbiao BU, Weibin MA, Huashan LI

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 358-366 doi: 10.1007/s11708-011-0161-y

Abstract: To investigate the performance of heat and mass transfer of ammonia-water during the process of falling

Keywords： falling film evaporation     ammonia-water     heat and mass transfer    

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SIMULATION OF O-BLOWN CO-GASIFICATION OF WOOD CHIP AND POTATO PEEL FOR PRODUCING SYNGAS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 448-457 doi: 10.15302/J-FASE-2023490

Abstract: ListItem>

● Low-value biowaste including wood chip and potato peel was valorized to syngas

Keywords： Aspen Plus     co-gasification     potato peel     syngas     simulation     waste reduction     wood chip    

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Process analysis of syngas production by non-catalytic POX of oven gas

Fuchen WANG , Xinwen ZHOU , Wenyuan GUO , Zhenghua DAI , Xin GONG , Haifeng LIU , Zunhong YU ,

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 117-122 doi: 10.1007/s11708-008-0078-2

Abstract: A non-catalytic POX of oven gas is proposed to solve the problem of secondary pollution due to solid wastes produced from the great amount of organic sulfur contained in oven gas in the traditional catalytic partial oxidation (POX) process. A study of the measurement of flow field and a thermodynamic analysis of the process characteristics were conducted. Results show that there exist a jet-flow region, a recirculation-flow region, a tube-flow region, and three corresponding reaction zones in the non-catalytic POX reformer. The combustion of oven gas occurs mainly in the jet-flow region, while the reformation of oven gas occurs mainly in the other two regions. Soot would not be formed by CH cracking at above 1200°C. Since there are very little C hydrocarbons in oven gas, the soot produced would be very tiny, even if they underwent cracking reaction. The integrated model for entrained bed gasification process was applied to simulate a non-catalytic POX reformer. It indicated that the proper oxygen-to-oven gas ratio is 0.22–0.28 at different pressures in the oven gas reformation process.

Keywords： oven gas     non-catalytic POX process     syngas    

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Energy and exergy analysis of syngas production from different biomasses through air-steam gasification

S. Rupesh,C. Muraleedharan,P. Arun

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 607-619 doi: 10.1007/s11708-016-0439-1

Abstract: Gasification is a thermo-chemical reaction which converts biomass into fuel gases in a reactor. The efficiency of conversion depends on the effective working of the gasifier. The first step in the conversion process is the selection of a suitable feedstock capable of generating more gaseous fuels. This paper analyses the performance of different biomasses during gasification through energy and exergy analysis. A quasi-equilibrium model is developed to simulate and compare the feasibility of different biomass materials as gasifier feedstock. Parametric studies are conducted to analyze the effect of temperature, steam to biomass ratio and equivalence ratio on energy and exergy efficiencies. Of the biomasses considered, sawdust has the highest energy and exergy efficiencies and lowest irreversibility. At a gasification temperature of 1000 K, the steam to biomass ratio of unity and the equivalence ratio of 0.25, the energy efficiency, exergy efficiency and irreversibility of sawdust are 35.62%, 36.98% and 10.62 MJ/kg, respectively. It is also inferred that the biomass with lower ash content and higher carbon content contributes to maximum energy and exergy efficiencies.

Keywords： gasification     modeling     energy     exergy     syngas    

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Simulation on thermodynamic state of ammonia carbonation at low temperature and low pressure

Jingcai ZHAO, Xingfu SONG, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 447-455 doi: 10.1007/s11705-013-1370-1

Abstract: This study on thermodynamic property of NH -CO -H O system provided the basic data for ammonia carbonationSimulations on vapor-liquid equilibrium (VLE) of ammonia carbonation with different physical propertiesNRTL (Non-Random-Two-Liquid) series models were selected for NH -CO -H O mixed electrolyte solution systemtemperature range of 273.15 K–363.15 K, the prediction of product component using E-NRTLRK model for ammonia

Keywords： vapor-liquid equilibrium     activity coefficient     carbon dioxide     ammonia     NRTL    

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Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power

Peng ZHENG, Xuan YAO, Wei ZHENG

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 127-132 doi: 10.1007/s11708-012-0225-7

Abstract: Ammonia is highly volatile and will present substantial environmental and operation hazards when leakingHowever, ammonia is the most common reactant in the DENOX project to eliminate NO in the flue gas.The storage and transportation of liquid ammonia has always been a dilemma of the power plant.Urea is a perfect substitute source for ammonia in the plant.Urea hydrolysis technology can easily convert urea into ammonia with low expense.

Keywords： urea     hydrolyser     ammonia     selective catalytic reduction (SCR)    

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Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of syngas

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 498-510 doi: 10.1007/s11705-021-2082-6

Abstract: sub>-H2O into CO-H2 using renewable energy is a promising technique for clean syngasLow-cost electrocatalysts to produce tunable syngas with a potential-independent CO/H2 ratioTheir electrocatalytic performance for syngas production can be tuned by changing the alloy compositionsConsequently, syngas with a wide range of CO/H2 ratios, from 0.5:1 to 3.4:1, can be producedstable CO/H2 ratios of 2:1 and 1.5:1, corresponding to the ratio to produce biofuels by syngas

Keywords： electrochemical reduction of CO2     syngas     N-doped carbon nanotubes     encapsulated alloy    

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Enhancement on the ammonia oxidation capacity of ammonia-oxidizing archaeon originated from wastewater

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1375-1

Abstract:

• AOA’s ammonia oxidizing capacity was enhanced under moderate magnetic

Keywords： Ammonia-oxidizing archaeon     Ammonia oxidation     Magnetic field     Magnetotaxis     Heredity    

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Experimental investigations on combustion characteristics of syngas composed of CH

Qingwei FAN, Shien HUI, Qulan ZHOU, Qinxin ZHAO, Tongmo XU

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 404-410 doi: 10.1007/s11705-010-0513-x

Abstract: Experimental investigations on basic combustion characteristics of syngas referred above are conductedPrimary air coefficient (PA), total air coefficient (TA), and components of the syngas (CS) are selectedas key factors, and it is found that PA dominates mostly the ignition of syngas and NO formation, while

Keywords： dual gas resources polygeneration     lean premixed combustion     residual gas     remained raw gas     NOx emission    

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Iteration framework for solving mixed lubrication computation problems

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 635-648 doi: 10.1007/s11465-021-0632-8

Abstract: Smooth surface with full contacts and mixed elastohydrodynamic lubrication is tested for validation.

Keywords： mixed lubrication     discretization formula     relative error     Reynolds equation     asperity    

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Enrichment of CO from syngas with Cu(I)Y adsorbent by five-bed VPSA

Shuna LI, Huawei YANG, Donghui ZHANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 472-481 doi: 10.1007/s11705-013-1351-4

Abstract: Then a five-bed VPSA process for separating CO from syngas on this adsorbent was dynamically simulated

Keywords： Cu(I)Y adsorbent     breakthrough curve     desorption     VPSA     simulation    

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Title Author Date Type Operation

Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and

Journal Article

Boosting the direct conversion of NHHCO electrolyte to syngas on Ag/Zn zeolitic imidazolate framework

Journal Article

Syngas composition study

Zhe WANG , Jinning YANG , Zheng LI , Yong XIANG ,

Journal Article

Abundance and distribution of ammonia-oxidizing archaea in Tibetan and Yunnan plateau agricultural soils

Kun DING,Xianghua WEN,Liang CHEN,Daishi HUANG,Fan FEI,Yuyang LI

Journal Article

Heat and mass transfer of ammonia-water in falling film evaporator

Xianbiao BU, Weibin MA, Huashan LI

Journal Article

SIMULATION OF O-BLOWN CO-GASIFICATION OF WOOD CHIP AND POTATO PEEL FOR PRODUCING SYNGAS

Journal Article

Process analysis of syngas production by non-catalytic POX of oven gas

Fuchen WANG , Xinwen ZHOU , Wenyuan GUO , Zhenghua DAI , Xin GONG , Haifeng LIU , Zunhong YU ,

Journal Article

Energy and exergy analysis of syngas production from different biomasses through air-steam gasification

S. Rupesh,C. Muraleedharan,P. Arun

Journal Article

Simulation on thermodynamic state of ammonia carbonation at low temperature and low pressure

Jingcai ZHAO, Xingfu SONG, Ze SUN, Jianguo YU

Journal Article

Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power

Peng ZHENG, Xuan YAO, Wei ZHENG

Journal Article

Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of syngas

Journal Article

Enhancement on the ammonia oxidation capacity of ammonia-oxidizing archaeon originated from wastewater

Journal Article

Experimental investigations on combustion characteristics of syngas composed of CH

Qingwei FAN, Shien HUI, Qulan ZHOU, Qinxin ZHAO, Tongmo XU

Journal Article

Iteration framework for solving mixed lubrication computation problems

Journal Article

Enrichment of CO from syngas with Cu(I)Y adsorbent by five-bed VPSA

Shuna LI, Huawei YANG, Donghui ZHANG

Journal Article