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Mass transport mechanisms within pervaporation membranes

Yimeng Song, Fusheng Pan, Ying Li, Kaidong Quan, Zhongyi Jiang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 458-474 doi: 10.1007/s11705-018-1780-1

Abstract: review focuses on two categories of mass transport mechanisms within pervaporation membranes: physical mechanism(solution-diffusion mechanism, molecular sieving mechanism) and chemical mechanism (facilitated transportmechanism).

Keywords： pervaporation membrane mass transport mechanisms physical mechanism chemical mechanism

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New Insight into the Development of Oxygen Carrier Materials for Chemical Looping Systems Review

Zhuo Cheng, Lang Qin, Jonathan A. Fan, Liang-Shih Fan

Engineering 2018, Volume 4, Issue 3, Pages 343-351 doi: 10.1016/j.eng.2018.05.002

Abstract:

Chemical looping combustion (CLC) and chemical looping reforming (CLR) are innovative technologiesMetal oxide materials play an essential role in the chemical looping redox processes.In recent years, there have been significant advances in oxygen carrier materials for various chemicalattractive due to their high oxygen-carrying capacity, cost benefits, and versatility in applications for chemicalThese advances will facilitate the development of oxygen carrier materials for more efficient chemical

Keywords： Chemical looping Oxygen carrier Hydrocarbon conversion Ionic diffusion Mechanism

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Flocculation behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing wastewater treatment

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1390-x

Abstract:

•PSBF performed better than PAC and PAM in CODCr removals.

Keywords： wastewater treatment Commercial coagulant/flocculant Secondary coagulation-flocculation process Chemicaloxygen demand Coagulation-flocculation mechanism

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Secondary aerosol formation in winter haze over the Beijing-Tianjin-Hebei Region, China

Dongjie Shang, Jianfei Peng, Song Guo, Zhijun Wu, Min Hu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1326-x

Abstract: Abstract • Characteristics and interannual variation of aerosol pollution are illustrated. • Mechanisms of secondary aerosol formation in winter haze of North China are reviewed. • Directions in future studies of secondary aerosol formation are provided. Severe haze pollution occurs frequently in the winter over the Beijing-Tianjin-Hebei (BTH) region (China), exerting profound impacts on air quality, visibility, and human health. The Chinese Government has taken strict mitigation actions since 2013 and has achieved a significant reduction in the annual mean PM2.5 concentration over this region. However, the level of secondary aerosols during heavy haze episodes showed little decrease during this period. During heavy haze episodes, the concentrations of secondary aerosol components, including sulfate, nitrate and secondary organics, in aerosol particles increase sharply, acting as the main contributors to aerosol pollution. To achieve effective control of particle pollution in the BTH region, the precise and complete secondary aerosol formation mechanisms have been investigated, and advances have been made about the mechanisms of gas phase reaction, nucleation and heterogeneous reactions in forming secondary aerosols. This paper reviews the research progress in aerosol chemistry during haze pollution episodes in the BTH region, lays out the challenges in haze formation studies, and provides implications and directions for future research.

Keywords： Secondary aerosol formation Regional haze Photochemical reaction Aqueous reaction Chemical mechanism

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Special issue on “Green chemical process and intensification”

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 11, Pages 1533-1535 doi: 10.1007/s11705-022-2263-y

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Special Issue for the Future Chemical Engineering Scholars of Global Chinese Chemical Engineering Symposium

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6, Pages 775-776 doi: 10.1007/s11705-022-2172-0

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Insight of chemical environmental risk and its management from the vinyl chloride accident

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 4, doi: 10.1007/s11783-023-1652-x

Abstract: Finally, this accident suggests that further efforts should be taken to bridge the gap between chemical

Keywords： Vinyl chloride Combustion Chemical safety management Environmental risk Emerging contaminants

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Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1728-7

Abstract:

● A higher sulfur content reduced the curing rate of Cr in glass.

Keywords： Dechlorinated fly ash SO₃ Heavy metal Chemical speciation Glass solidification

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New Trend of Forest Chemical Industry in China

Song Zhanqian

Strategic Study of CAE 2001, Volume 3, Issue 2, Pages 1-6

Abstract:

Forest chemical industry can produce various useful products by chemical processing of forest resourcesThe present conditiobns of the forest chemical industry in China was reviewed in this paper.

Keywords： forest chemical industry forest resource chemical processing

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Bioinspired and biomimetic membranes for water purification and chemical separation: A review

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1412-8

Abstract:

•The history of biological and artificial water channels is reviewed.

Keywords： Aquaporins Artificial water channels Biomimetic membranes Chemical separation and water purification

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Chemical transdifferentiation: closer to regenerative medicine

Aining Xu,Lin Cheng

Frontiers of Medicine 2016, Volume 10, Issue 2, Pages 152-165 doi: 10.1007/s11684-016-0445-z

Abstract: Particularly, we focus on the complete chemical compound-induced cell transdifferentiation, which isDespite these achievements, the mechanisms underpinning chemical transdifferentiation remain largely

Keywords： cell therapy cell transdifferentiation chemical compounds small molecules tissue regeneration

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Computational design of structured chemical products

Faheem Mushtaq, Xiang Zhang, Ka Y. Fung, Ka M. Ng

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5, Pages 1033-1049 doi: 10.1007/s11705-020-2002-1

Abstract: In chemical product design, the aim is to formulate a product with desired performance.performance, ingredients, structure, and manufacturing process framework for the design of structured chemical

Keywords： product design performance ingredients structure manufacturing process framework structured chemical

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Hexachlorobutadiene emissions from typical chemical plants

Minxiang Wang, Lili Yang, Xiaoyun Liu, Zheng Wang, Guorui Liu, Minghui Zheng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1352-8

Abstract: Abstract • Unintentional HCBD production in typical chemical plants was investigated. • The highestFew studies of HCBD formation during chemical production processes have been performed, so HCBD emissionsstudy, HCBD concentrations in raw materials, intermediate products, products, and bottom residues from chemicalThe concentrations in the bottom residue samples contributed 24%–99% of the total HCBD formed in the chemicalThe results indicate the concentrations of HCBD unintentionally produced in typical chemical plants and

Keywords： Hexachlorobutadiene Chemical plant Chlorobenzene Trichloroethylene Tetrachloroethylene

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Opportunities and challenges for a Golden Age of chemical engineering

Phillip R. WESTMORELAND

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1, Pages 1-7 doi: 10.1007/s11705-014-1416-z

Abstract: Chemical engineering is entering a new Golden Age of practice, thought, and impact, accompanied by greatThat must be based on recognizing that the core of chemical engineering is applying molecular sciences

Keywords： hydrocarbons biotechnology computation cyberinfrastructure manufacturing environmental

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Two-dimensional numerical and eco-toxicological modeling of chemical spills

Suiliang HUANG, Yafei JIA, Sam S. Y. WANG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2, Pages 178-185 doi: 10.1007/s11783-009-0020-9

Abstract: The effects of chemical spills on aquatic non-target organisms were evaluated in this study.The transport and transformation of spilled chemicals were simulated by a chemical transport model (includingDue to extreme scarcity of data, this model was applied to two hypothetical cases of chemical spillssimulated results indicated that this model is capable of reasonably predicting the acute effects of chemical

Keywords： chemical spills acute effects aquatic ecosystem eco-toxicological modeling