Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 1353

Conference Videos 30

Conference Information 4

Year

2024 3

2023 202

2022 196

2021 222

2020 117

2019 47

2018 42

2017 60

2016 47

2015 47

2014 55

2013 59

2012 30

2011 28

2010 50

2009 39

2008 29

2007 46

2006 6

2005 2

open ︾

Keywords

SARS-CoV-2 33

COVID-19 25

CO₂ capture 19

2 18

PM_2.5 16

TiO₂ 14

conversion 14

photocatalysis 14

CO₂ 9

1 8

Photocatalysis 8

CO₂ emissions 7

Deep learning 7

Al₂O₃ 6

Reinforcement learning 6

biomass 6

adsorption 5

microwave scatterometer 5

China 4

open ︾

Search scope:

排序： Display mode:

Co anchored on porphyrinic triazine-based frameworks with excellent biocompatibility for conversion of

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12, Pages 1761-1771 doi: 10.1007/s11705-022-2195-6

Abstract: Microbial electrosynthesis is a promising alternative to directly convert CO2sub> into long-chainreduction reaction and low production of reactive oxygen species, owing to the synergistic effect of Co–Nxsub> modulating the charge distribution and adsorption energy of intermediates., the microbial electrosynthesis system equipped with the electrocatalyst successfully converted CO2sub> to poly-β-hydroxybutyrate.

Keywords： microbial electrosynthesis hydrogen evolution reaction metalloporphyrins biocompatibility CO2sub> conversion

HTML PDF Collect

Preliminary design of an SCO conversion system applied to the sodium cooled fast reactor

Frontiers in Energy 2021, Volume 15, Issue 4, Pages 832-841 doi: 10.1007/s11708-021-0777-5

Abstract: The supercritical carbon dioxide (SCO2sub>) Brayton cycle has become an ideal power conversionIn this paper, the 1200 MWesub> large pool SFR (CFR1200) is used as the heat source of the systemThe performance of different SCO2sub> Brayton cycle systems and changes in key equipment performancenuclear island adopts the flow-advanced operation strategy and the carbon dioxide flowrate in the SCO2sub> power conversion system is adjusted with the goal of maintaining the sodium-carbon dioxide heat

Keywords： sodium-cooled fast reactor (SFR) supercritical carbon dioxide (SCO2sub>) brayton cycle load

HTML PDF Collect

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: of high-purity CO2sub> release and compression after the ammonia-based CO2sub> captureframework derived nitrogen carbon catalysts, which were used for the first time for boosting the direct conversion/sup> at –0.5 V, a H2sub>/CO ratio of 1–2 (–0.5 to –0.7 V), and a stable catalytic activity ofIts activity is comparable to that of the CO2sub>-saturated NH4sub>HCO3sub> electrolyte>2sub> and the stability of *COOH intermediate, thus can improve the selectivity and catalytic activity

Keywords： Ag catalyst zeolitic imidazolate framework CO2sub> electroreduction ammonium bicarbonate electrolyte

HTML PDF Collect

Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment study

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1734-9

Abstract:

● Photochemical conversion of chlorobenzene (CB) on α-Fe2sub>O3sub> was evaluated.

Keywords： Photochemical conversion Chlorobenzene α-Fe2sub>O3sub> PCDD/Fs Mineral particulate

HTML PDF Collect

Plasma-catalysis: Is it just a question of scale?

J. Christopher Whitehead

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2, Pages 264-273 doi: 10.1007/s11705-019-1794-3

Abstract: The issues of describing and understanding the changes in performance that result when a catalyst is placed into plasma are discussed. The different chemical and physical interactions that result and how their combination might produce beneficial results for the plasma-catalytic processing of different gas streams are outlined with particular emphasis being placed on the different range of spatial and temporal scales that must be considered both in experiment and modelling. The focus is on non-thermal plasma where the lack of thermal equilibrium creates a range of temperature scales that must be considered. This contributes in part to a wide range of inhomogeneity in different properties such as species concentrations and electric fields that must be determined experimentally by methods and be incorporated into modelling. It is concluded that plasma-catalysis is best regarded as conventional catalysis perturbed by the presence of a discharge, which modifies its operating conditions, properties and outcomes often in a very localised way. The sometimes used description “plasma-activated catalysis” is an apt one.

Keywords： plasma catalysis plasma-activated catalysis non-thermal plasma CO2sub> conversion

HTML PDF Collect

Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3, Pages 349-358 doi: 10.1007/s11705-015-1523-5

Abstract: directing agent, and inhibitor; the activity was evaluated using a probe reaction-photocatalytic CO conversion

Keywords： Ti³⁺-doped TiO2sub> photocatalytic CO2sub> conversion visible light irradiation

HTML PDF Collect

Conversion of CO into CO by high active and stable PdNi nanoparticles supported on a metal-organic framework

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7, Pages 1139-1148 doi: 10.1007/s11705-021-2111-5

Abstract: The solubility of Pd(NO3sub>)2sub> in water is moderate whereas it is completely soluble/sub>)2sub> and Pd(NO3sub>)2sub> solution in dilute HNO3sub> and used forThe catalysts synthesized with Pd(NO3sub>)2sub> solution in dilute HNO3sub> showed70sub>Ni30sub>/MIL-101-NH2sub>(Cr), which is due to a less uniform distribution of Pdof MIL-101-NH2sub>(Cr) structure during the reduction process.

Keywords： CO oxidation heterogeneous catalysis metal-organic framework NH2sub> functional group PdNi

HTML PDF Collect

Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials. The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of N O than the Rh O supported on CePO nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh2sub>O3sub> CePO4sub> N2sub>O decomposition

HTML PDF Collect

CO2sub> methanation and co-methanation of CO and CO2sub> over Mn-promoted Ni/Al2sub>O3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: The Mn content was varied from 0.86% to 2.54% and the best CO conversion was achieved with the 1.71Mn-Ni

Keywords： Mn promotion nickel catalysts CO2sub> methanation co-methanation of CO and CO2sub>

HTML PDF Collect

New Trends in Olefin Production

Ismaël Amghizar,Laurien A. Vandewalle,Kevin M. Van Geem,Guy B. Marin

Engineering 2017, Volume 3, Issue 2, Pages 171-178 doi: 10.1016/J.ENG.2017.02.006

Abstract:

Most olefins (e.g., ethylene and propylene) will continue to be produced through steam cracking (SC) of hydrocarbons in the coming decade. In an uncertain commodity market, the chemical industry is investing very little in alternative technologies and feedstocks because of their current lack of economic viability, despite decreasing crude oil reserves and the recognition of global warming. In this perspective, some of the most promising alternatives are compared with the conventional SC process, and the major bottlenecks of each of the competing processes are highlighted. These technologies emerge especially from the abundance of cheap propane, ethane, and methane from shale gas and stranded gas. From an economic point of view, methane is an interesting starting material, if chemicals can be produced from it. The huge availability of crude oil and the expected substantial decline in the demand for fuels imply that the future for proven technologies such as Fischer-Tropsch synthesis (FTS) or methanol to gasoline is not bright. The abundance of cheap ethane and the large availability of crude oil, on the other hand, have caused the SC industry to shift to these two extremes, making room for the on-purpose production of light olefins, such as by the catalytic dehydrogenation of propane.

Keywords： Olefin production Steam cracking Methane conversion Shale gas CO2sub> emissions

HTML PDF Collect

A Storage-Driven CO2sub> EOR for a Net-Zero Emission Target Article

Yueliang Liu, Zhenhua Rui

Engineering 2022, Volume 18, Issue 11, Pages 79-87 doi: 10.1016/j.eng.2022.02.010

Abstract: >2sub>) emissions.>2sub> emissions by storing CO2sub> in oil reservoirs.CO2sub> EOR—whose main target is to realize net-zero or even negative CO2sub> emissionsStorage-driven CO2sub> EOR is superior to conventional CO2sub> EOR in improving sweepingthan conventional CO2sub> EOR.

Keywords： CO2sub> EOR Net CO2sub> emissions Dimethyl ether Storage-driven CO2sub> EOR CO2sub> sequestration

HTML PDF Collect

Multistep conversion of cresols by phenol hydroxylase and 2,3-dihydroxy-biphenyl 1,2-dioxygenase

Shengnan SHI,Fang MA,Tieheng SUN,Ang LI,Jiti ZHOU,Yuanyuan QU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4, Pages 539-546 doi: 10.1007/s11783-013-0616-y

Abstract: A multistep conversion system composed of phenol hydroxylase (PH ) and 2,3-dihydroxy-biphenyl 1,2-dioxygenaseacid (2-hydroxy-3-methyl-ODA) and 2-hydroxy-5-methyl-6-oxohexa-2,4-dienoic acid (2-hydroxy-5-methyl-ODAFor the first step conversion, the formation rate of 3-methylcatechol (0.29 μmol·L ·min ·mg cell dryFor the second step conversion, strain BphC showed higher formation rate (0.83 μmol·L ·min ·mg celldry weight) for 2-hydroxy-3-methyl-ODA and 2-hydroxy-5-methyl-ODA from -cresol, which was 1.1-fold

Keywords： multistep conversion cresols phenol hydroxylase 2 3-dihydroxybiphenyl 1 2-dioxygenase methylcatechols

HTML PDF Collect

Photocatalytic syngas synthesis from CO

Ling Tan, Kipkorir Peter, Jing Ren, Baoyang Du, Xiaojie Hao, Yufei Zhao, Yu-Fei Song

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1, Pages 99-108 doi: 10.1007/s11705-020-1947-4

Abstract: The rational design of photocatalyst that can effectively reduce CO under visible light ( >400 nm), and simultaneously precise control of the products syngas (CO/H ) ratio is highly desirable for the Fischer-Tropsch reaction. In this work, we synthesized a series of CeO -decorated layered double hydroxides (LDHs, Ce- ) samples for photocatalytic CO reduction. It was found that the selectivity and productivity of CO and H from photoreduction of CO in conjunction with Ru-complex as photosensitizer performed an obvious “volcano-like” trend, with the highest point at Ce-0.15 and the CO/H ratio can be widely tunable from 1/7.7 to 1/1.3. Furthermore, compared with LDH, Ce-0.15 also drove photocatalytic CO to syngas under 600 nm irradiation. It implied that an optimum amount of CeO modifying LDH promoted the photoreduction of CO to syngas. This report gives the way to fully utilize the rare earth elements and provides a promising route to enhance the photo-response ability and charge injection efficiency of LDH-based photocatalysts in the synthesis of syngas with a tunable ratio under visible light irradiation.

Keywords： visible light catalysis CO2sub> conversion layered double hydroxide rare earth elements

HTML PDF Collect

Al2sub>O3sub> and CeO2sub>-promoted MgO sorbents for CO2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 83-93 doi: 10.1007/s11705-017-1691-6

Abstract: A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderate temperatures. The CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO . Over Al O -MgO sorbents, the best capacity of 24.6 mg-CO /g-sorbent was attained at 100 °C, which was 61% higher than that of MgO (15.3 mg-CO /g-sorbent). The highest capacity of 35.3 mg-CO /g-sorbent was obtained over the CeO -MgO sorbents at the optimal temperature of 200 °C. Combining with the characterization results, we conclude that the promotion effect on CO sorption with the addition of Al O and CeO can be attributed to the increased surface area with reduced MgO crystallite size. Moreover, the addition of CeO increased the basicity of MgO phase, resulting in more increase in the CO capacity than Al O promoter. Both the Al O -MgO and CeO -MgO sorbents exhibited better cyclic stability than MgO over the course of fifteen CO sorption-desorption cycles. Compared to Al O , CeO is more effective for promoting the CO capacity of MgO. To enhance the CO capacity of MgO sorbent, increasing the basicity is more effective than the increase in the surface area.

Keywords： CO2sub> capture MgO sorbents Al2sub>O3sub> CeO2sub> flue gas

HTML PDF Collect

The stabilization effect of Al2sub>O3sub> on unconventional Pb/SiO2sub> catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al2sub>O3sub> with a small amount, wasintroduced into Pb/SiO2sub> catalyst in this study.It has been proved that Al2sub>O3sub> can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO2sub> catalyst exhibits a much higher stability up to more than 150 h.>2sub>O3sub> addition was also proposed.

Keywords： Pb/SiO2sub> Al2sub>O3sub> propane dehydrogenation propene stability

HTML PDF Collect

Title Author Date Type Operation

Co anchored on porphyrinic triazine-based frameworks with excellent biocompatibility for conversion of

Journal Article

Preliminary design of an SCO conversion system applied to the sodium cooled fast reactor

Journal Article

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

Journal Article

Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment study

Journal Article

Plasma-catalysis: Is it just a question of scale?

J. Christopher Whitehead

Journal Article

Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

Journal Article

Conversion of CO into CO by high active and stable PdNi nanoparticles supported on a metal-organic framework

Journal Article

Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

CO2sub> methanation and co-methanation of CO and CO2sub> over Mn-promoted Ni/Al2sub>O3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

New Trends in Olefin Production

Ismaël Amghizar,Laurien A. Vandewalle,Kevin M. Van Geem,Guy B. Marin

Journal Article

A Storage-Driven CO2sub> EOR for a Net-Zero Emission Target

Yueliang Liu, Zhenhua Rui

Journal Article

Multistep conversion of cresols by phenol hydroxylase and 2,3-dihydroxy-biphenyl 1,2-dioxygenase

Shengnan SHI,Fang MA,Tieheng SUN,Ang LI,Jiti ZHOU,Yuanyuan QU

Journal Article

Photocatalytic syngas synthesis from CO

Ling Tan, Kipkorir Peter, Jing Ren, Baoyang Du, Xiaojie Hao, Yufei Zhao, Yu-Fei Song

Journal Article

Al2sub>O3sub> and CeO2sub>-promoted MgO sorbents for CO2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Journal Article

The stabilization effect of Al2sub>O3sub> on unconventional Pb/SiO2sub> catalyst

Journal Article

京公网安备 11010502051620号京ICP备11030251号-2

关注我们