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Potential sources of unintentionally produced PCB, HCB, and PeCBz in China: A preliminary overview

Xiaotu Liu, Heidelore Fiedler, Wenwen Gong, Bin Wang, Gang Yu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1036-9

Abstract:

A preliminary analysis of potential sources for unintentionally produced

Keywords: Unintentionally produced POPs     Polychlorinated biphenyls     Hexachlorobenzene     Pentachlorobenzene     sources    

Higher heating value prediction of torrefaction char produced from non-woody biomass

Nitipong SOPONPONGPIPAT,Dussadeeporn SITTIKUL,Unchana SAE-UENG

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 461-471 doi: 10.1007/s11708-015-0377-3

Abstract: The higher heating value of five types of non-woody biomass and their torrefaction char was predicted and compared with the experimental data obtained in this paper. The correlation proposed in this paper and the ones suggested by previous researches were used for prediction. For prediction using proximate analysis data, the mass fraction of fixed carbon and volatile matter had a strong effect on the higher heating value prediction of torrefaction char of non-woody biomass. The high ash fraction found in torrefied char resulted in a decrease in prediction accuracy. However, the prediction could be improved by taking into account the effect of ash fraction. The correlation developed in this paper gave a better prediction than the ones suggested by previous researches, and had an absolute average error (AAE) of 2.74% and an absolute bias error (ABE) of 0.52%. For prediction using elemental analysis data, the mass fraction of carbon, hydrogen, and oxygen had a strong effect on the higher heating value, while no relationship between the higher heating value and mass fractions of nitrogen and sulfur was discovered. The best correlation gave an AAE of 2.28% and an ABE of 1.36%.

Keywords: higher heating value     correlation     biomass     proximate analysis     ultimate analysis    

ASSESSMENT OF HEAVY METALS IN HYDROCHAR PRODUCED BY HYDROTHERMAL CARBONIZATION OF DAIRY MANURE

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 437-447 doi: 10.15302/J-FASE-2023507

Abstract:

● Content of heavy metals in hydrochar varies considerably, from 50% to 100%.

Keywords: heavy metals     dairy manure     hydrochar     hydrothermal carbonization     waste management    

Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 363-372 doi: 10.1007/s11705-020-1944-7

Abstract: of the oil shale were trapped by hydrogen-poor macromolecular radicals of the intermediate metaplast produced

Keywords: co-pyrolysis     coal     oil shale     electron spin resonance     mechanism    

Sorption of aromatic organophosphate flame retardants on thermally and hydrothermally produced biochars

Ziwen Du, Chuyi Huang, Jiaqi Meng, Yaru Yuan, Ze Yin, Li Feng, Yongze Liu, Liqiu Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1220-6

Abstract: TPhP showed faster and higher sorption on biochars than TPPO. Pyrochars had higher sorption capacity for TPPO than hydrochar. Hydrophobic interactions dominated TPhP sorption by biochars. The π-π EDA and electrostatic interactions are involved in sorption. Aromatic organophosphate flame retardant (OPFR) pollutants and biochars are commonly present and continually released into soils due to their increasingly wide applications. In this study, for the first time, the sorption of OPFRs on biochars was investigated. Although triphenyl phosphate (TPhP) and triphenylphosphine oxide (TPPO) have similar molecular structures and sizes, TPhP exhibited much faster and higher sorption than TPPO due to its stronger hydrophobicity, suggesting the dominant role of hydrophobic interactions in TPhP sorption. The π-π electron donor–acceptor (EDA) interactions also contributed to the sorption process, as suggested by the negative correlation between the sorption capacity of the aromatic OPFRs and the aromatic index (H/C atomic ratios) of biochar. Density functional theory calculations further showed that one benzene ring of aromatic OPFRs has no electrons, which may interact with biochar via π-π EDA interactions. The electrostatic attraction between the protonated P = O in OPFRs and the negatively charged biochar was found to occur at pH below 7. This work provides insights into the sorption behaviors and mechanisms of aromatic OPFRs by biochars.

Keywords: Organophosphate flame retardants     Hydrochar     Pyrochar     Adsorption     Emerging contaminants     Biochar    

Hydrotreating of light gas oil using a NiMo catalyst supported on activated carbon produced from fluid

N. Rambabu,Sandeep Badoga,Kapil K. Soni,A.K. Dalai,J. Adjaye

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 161-170 doi: 10.1007/s11705-014-1430-1

Abstract: The produced NAFSAC had an inert nature, exhibited the sink effect and few metal support interactions

Keywords: activated carbon     fluid petroleum coke     NiMo catalyst     hydrotreating     light gas oil    

Synthesis of zeolite Na-P1 from coal fly ash produced by gasification and its application as adsorbent

Yixin Zhang, Lu Zhou, Liqing Chen, Yang Guo, Fanhui Guo, Jianjun Wu, Baiqian Dai

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 518-527 doi: 10.1007/s11705-020-1926-9

Abstract: The coal fly ash produced by gasification is estimated to be over 80 million ton per year in China byIn this paper, the coal fly ash produced by gasification was at first analyzed and then applied to synthesize

Keywords: coal fly ash     gasification     zeolite     Na-P1     chromium(VI)    

Pyrolysis of WEEE plastics using catalysts produced from fly ash of coal gasification

Marika Benedetti, Lorenzo Cafiero, Doina De Angelis, Alessandro Dell’Era, Mauro Pasquali, Stefano Stendardo, Riccardo Tuffi, Stefano Vecchio Ciprioti

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0998-3

Abstract: Catalytic pyrolysis of thermoplastics extracted from waste electrical and electronic equipment (WEEE) was investigated using various fly ash-derived catalysts. The catalysts were prepared from fly ash by a simple method that basically includes a mechanical treatment followed by an acid or a basic activation. The synthesized catalysts were characterized using various analytical techniques. The results showed that not treated fly ash (FA) is characterized by good crystallinity, which in turn is lowered by mechanical and chemical treatment (fly ash after mechanical and acid activation, FAMA) and suppressed almost entirely down to let fly ash become completely amorphous (fly ash after mechanical and basic activation FAMB). Simultaneously, the surface area resulted increased. Subsequently, FA, FAMB and FAMA were used in the pyrolysis of a WEEE plastic sample at 400°C and their performance were compared with thermal pyrolysis at the same temperature. The catalysts principally improve the light oil yield: from 59wt.% with thermal pyrolysis to 83 wt.% using FAMB. The formation of styrene in the oil is also increased: from 243 mg/g with thermal pyrolysis to 453 mg/g using FAMB. As a result, FAMB proved to be the best catalyst, thus producing also the lowest and the highest amount of char and gas, respectively.

Keywords: Waste electrical and electronic equipment (WEEE) plastic mixture     Pyrolysis     Catalyst     Fly ash     Oil    

Study of engine performance, emission and combustion characteristics fueled with diesel-like fuel produced

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1063-6

Abstract:

To derive liquid fuel from waste engine oil and plastics thorough pyrolysis process

To make equal blend of waste engine oil and plastics with diesel fuel

To find the suitability of fuel from waste in diesel engine through performance, emission and combustion characteristics

Keywords: Waste engine oil     Waste plastic oil     Diesel fuel     Pyrolysis     Compression ignition engine    

Analysis on the depositing process of the solid particulates produced by aerosol fire suppressants under

Chen Changkun

Strategic Study of CAE 2010, Volume 12, Issue 1,   Pages 48-51

Abstract: unsteady analysis was conducted on the space distribution and depositing process of the solid particulates produced

Keywords: solid particulates     aerosol fire suppressant     depositing process    

Dynamic modeling and damage analysis of debris cloud fragments produced by hypervelocity impacts via Research Article

Ru ZENG, Yan SONG, Weizhen LV,zengru_neo@163.com,sonya@usst.edu.cn,hala_lwz@163.com

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 4,   Pages 555-570 doi: 10.1631/FITEE.2100049

Abstract: It is always a challenging task to model the trajectory and make an efficient of produced by (HVI)

Keywords: Debris clouds     Hypervelocity impact     Image processing     Damage estimation    

Simulation analysis of environmental risk accident and management of high-sulfur gas field development in complex terrain

WANG Xiao, HAO Fanghua, ZHANG Xuan, SUN Wen, CHENG Hongguang

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 318-325 doi: 10.1007/s11783-008-0033-9

Abstract: Model and breaking up technique of puffs to simulate the HS diffusion condition of blowout accidents produceddirection, and due to the obstruction of the mountain’s body, it accumulated in front of mountain on produced

Keywords: mountain ’     rapture     Lagrangian     hollow     produced    

Green process to recover magnesium chloride from residue solution of potassium chloride production plant

WANG Lin, HE Yunliang, WANG Yanfei, BAO Ying, WANG Jingkang

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 385-389 doi: 10.1007/s11705-008-0079-z

Abstract: The produced magnesium chloride is up to industrial criteria.

Keywords: industrial production     chemical industrial     produced magnesium     chloride production     impurity carnallite    

Strengthening and Softening of Ferrite+Pearlite Steels Produced by Thin Slab Casting and Rolling

Fu Jie,Wu Huajie,Liu Yangchun

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 65-72

Abstract: The results show that strength of HSLC steel produced by TSCR can be further increased.By using temper-slow cooling, σs of HSLC steel(ZJ330) produced by TSCR can be decreased

Keywords: HSLC steel     strengthening     softening     basal plate for cold rolling     super steel    

Key technology research and field test of offshore viscous polymer flooding

Zhang Fengjiu,Jiang Wei,Sun Fujie,Zhou Shouwei

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 28-33

Abstract:

Although there is a high development potential, the EOR(enhanced oil recovery) techniques of onshore oilfield are not suitable for offshore. Based on the 10 years research and analysis of EOR techniques of offshore thickened oil, a series of resolutions and techniques on driving fluid technology, platform polymer injection distribution technology, production containing polymer treatment technology and effectiveness evaluation of early polymer injection for offshore heavy oil were developed, the system of offshore polymer flooding were established. These techniques had been carried out in Suizhong36-1,Lvda10-1 and Jinzhou with large scale field experiments. The water was controlled at a low level and the oil extraction was enhanced. These works proved the feasibility of the techniques and the value of economy.

Keywords: offshore     heavy oil     polymer flooding     displacing fluid     polymer solution preparation     produced fluid    

Title Author Date Type Operation

Potential sources of unintentionally produced PCB, HCB, and PeCBz in China: A preliminary overview

Xiaotu Liu, Heidelore Fiedler, Wenwen Gong, Bin Wang, Gang Yu

Journal Article

Higher heating value prediction of torrefaction char produced from non-woody biomass

Nitipong SOPONPONGPIPAT,Dussadeeporn SITTIKUL,Unchana SAE-UENG

Journal Article

ASSESSMENT OF HEAVY METALS IN HYDROCHAR PRODUCED BY HYDROTHERMAL CARBONIZATION OF DAIRY MANURE

Journal Article

Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

Journal Article

Sorption of aromatic organophosphate flame retardants on thermally and hydrothermally produced biochars

Ziwen Du, Chuyi Huang, Jiaqi Meng, Yaru Yuan, Ze Yin, Li Feng, Yongze Liu, Liqiu Zhang

Journal Article

Hydrotreating of light gas oil using a NiMo catalyst supported on activated carbon produced from fluid

N. Rambabu,Sandeep Badoga,Kapil K. Soni,A.K. Dalai,J. Adjaye

Journal Article

Synthesis of zeolite Na-P1 from coal fly ash produced by gasification and its application as adsorbent

Yixin Zhang, Lu Zhou, Liqing Chen, Yang Guo, Fanhui Guo, Jianjun Wu, Baiqian Dai

Journal Article

Pyrolysis of WEEE plastics using catalysts produced from fly ash of coal gasification

Marika Benedetti, Lorenzo Cafiero, Doina De Angelis, Alessandro Dell’Era, Mauro Pasquali, Stefano Stendardo, Riccardo Tuffi, Stefano Vecchio Ciprioti

Journal Article

Study of engine performance, emission and combustion characteristics fueled with diesel-like fuel produced

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

Journal Article

Analysis on the depositing process of the solid particulates produced by aerosol fire suppressants under

Chen Changkun

Journal Article

Dynamic modeling and damage analysis of debris cloud fragments produced by hypervelocity impacts via

Ru ZENG, Yan SONG, Weizhen LV,zengru_neo@163.com,sonya@usst.edu.cn,hala_lwz@163.com

Journal Article

Simulation analysis of environmental risk accident and management of high-sulfur gas field development in complex terrain

WANG Xiao, HAO Fanghua, ZHANG Xuan, SUN Wen, CHENG Hongguang

Journal Article

Green process to recover magnesium chloride from residue solution of potassium chloride production plant

WANG Lin, HE Yunliang, WANG Yanfei, BAO Ying, WANG Jingkang

Journal Article

Strengthening and Softening of Ferrite+Pearlite Steels Produced by Thin Slab Casting and Rolling

Fu Jie,Wu Huajie,Liu Yangchun

Journal Article

Key technology research and field test of offshore viscous polymer flooding

Zhang Fengjiu,Jiang Wei,Sun Fujie,Zhou Shouwei

Journal Article