Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 13

Year

2020 2

2018 3

2015 1

2013 1

2012 1

2010 1

2009 1

2008 1

2001 1

open ︾

Keywords

alumina 4

Al₂O₃ 1

Alumina 1

Binder 1

Fe-BEA 1

NH₃-SCR 1

NO 1

SCR 1

VOC 1

WMoNiP/Al₂O₃ 1

Zirconia 1

abrasive waterjet 1

alumina support 1

alumina tube digestion 1

aqueous zinc-ion batteries 1

bio-oil 1

cathodes 1

ceramic membranes 1

coating 1

cobalt oxides 1

open ︾

Search scope:

排序： Display mode:

Grindability of high-temperature alloy with ceramic alumina wheels

ZHANG Hongxia, CHEN Wuyi, CHEN Zhitong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 139-145 doi: 10.1007/s11465-008-0040-3

Abstract: The grindability of high-temperature alloy by using ceramic alumina wheels is studied on the basis of18–22 m/s and the depth of grinding should not exceed 0.02 mm in grinding GH2132 alloy with ceramic alumina

Keywords： metallographic topography grinding GH2132 resistance decrease

HTML PDF Collect

Room temperature oxidation of acetone by ozone over alumina-supported manganese and cobalt mixed oxides

Mehraneh Ghavami, Mostafa Aghbolaghy, Jafar Soltan, Ning Chen

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6, Pages 937-947 doi: 10.1007/s11705-019-1900-6

Abstract: In this study, a series of alumina supported single and mixed manganese and cobalt oxides catalysts were

Keywords： ozone VOC manganese oxides cobalt oxides alumina support

HTML PDF Collect

Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4, Pages 415-421 doi: 10.1007/s11705-013-1360-3

Abstract: Two catalysts, alumina and manganese oxide supported on alumina, have been prepared by calcination and

Keywords： alumina manganese oxide deposited on alumina quinoxaline synthesis

HTML PDF Collect

Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries

Frontiers in Energy Pages 775-781 doi: 10.1007/s11708-023-0902-8

Abstract: sub>6O₁₆·3H₂O (NVO) was chosen as a model material, and was modified with alumina

Keywords： cathodes aqueous zinc-ion batteries sodium vanadate alumina coating

HTML PDF Collect

Effect of alumina and zirconia as binders on the activity of Fe-BEA for NH

Jin Shi, Zihao Zhang, Mingxia Chen, Zhixiang Zhang, Wenfeng Shangguan, Shunchao Gu, Hirano Shin-ichi

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1012-4

Abstract: The addition of alumina and zirconia as binders to the Fe-BEA led to a different effect on NO conversionlarger iron particles were formed by the migration of parent iron particles in the Fe-BEA catalyst with alumina

Keywords： NH₃-SCR NO Fe-BEA Binder Alumina Zirconia

HTML PDF Collect

Depth of cut models for multipass abrasive waterjet cutting of alumina ceramics with nozzle oscillation

Jun WANG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1, Pages 19-32 doi: 10.1007/s11465-009-0082-1

Abstract: An experimental study of the depth of cut in multipass abrasive waterjet (AWJ) cutting of alumina ceramicssingle pass cutting using a dimensional analysis technique and the particle erosion theories applied to alumina

Keywords： abrasive waterjet engineering ceramics depth of cut cutting performance nozzle oscillation machining

HTML PDF Collect

Preparation and characterization of alumina hollow fiber membranes

Tao WANG, Yuzhong ZHANG, Guangfen LI, Hong LI

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3, Pages 265-271 doi: 10.1007/s11705-009-0010-2

Abstract: In this study, the alumina (Al O ) hollow fiber membranes were prepared by a combined phase-inversionThe results showed that the alumina hollow fiber membranes we prepared were suitable for the microfiltration

Keywords： Al₂O₃ ceramic membranes hollow fiber

HTML PDF Collect

Innovation of Diaspore Alumina Production Process

Song Peikai

Strategic Study of CAE 2001, Volume 3, Issue 8, Pages 87-90

Abstract:

This paper summarizes the characteristics of bauxite resources and alumina production in China The

Keywords： diaspore alumina tube digestion energy conservation and consumption reduction wear

HTML PDF Collect

Selective catalytic reduction of NO

Pavlo I. Kyriienko

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4, Pages 471-491 doi: 10.1007/s11705-019-1847-7

Abstract: selective catalytic reduction (SCR) of NO with ethanol and other C oxygenates as reductants over silver-aluminaThe aspects of the process mechanism, nature of active sites, role of alumina and silver (especiallyThe results obtained over various silver-alumina catalysts demonstrate the perspectives of their application

Keywords： SCR nitrogen oxides silver-alumina catalyst silver species ethanol oxygenates

HTML PDF Collect

Hydro-pyrolysis of lignocellulosic biomass over alumina supported Platinum, Mo

Songbo He, Jeffrey Boom, Rolf van der Gaast, K. Seshan

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 155-161 doi: 10.1007/s11705-017-1655-x

Abstract: In-line hydro-treatment of bio-oil vapor from fast pyrolysis of lignocellulosic biomass (hydro-pyrolysis of biomass) is studied as a method of upgrading the liquefied bio-oil for a possible precursor to green fuels. The nobel metal (Pt) and non-noble metal catalysts (Mo C and WC) were compared at 500 °C and atmospheric pressure which are same as the reaction conditions for fast pyrolysis of biomass. Results indicated that under the pyrolysis conditions, the major components, such as acids and carbonyls, of the fast pyrolysis bio-oil can be completely and partially hydrogenated to form hydrocarbons, an ideal fossil fuel blend, in the hydro-treated bio-oil. The carbide catalysts perform equally well as the Pt catalyst regarding to the aliphatic and aromatic hydrocarbon formation (ca. 60%), showing the feasibility of using the cheap non-noble catalysts for hydro-pyrolysis of biomass.

Keywords： bio-oil pyrolysis hydro-deoxygenation (HDO) non-noble metal catalysts hydro-treatment

HTML PDF Collect

Extraction of silica and alumina from fly ash

Jing Fu,Yi Maosen,Zhang Zhongwen and Rao Shuanmin

Strategic Study of CAE 2012, Volume 14, Issue 2, Pages 96-106

Abstract: is leached with alkali solution at the atmospheric pressure to produce white carbon black, and then aluminaresults indicate that the extraction of silica in fly ash is up to 72.5 % and the total extraction of aluminaand mass ratio of alumina to silica of about 2.7, is suitable for recovering alumina by sodalime sinterThe optimum conditions of sodalime sinter process are as follows: molar ratio of sodium oxide to aluminaUnder the above optimum conditions, the recovery of alumina is more than 86 %.

Keywords： fly ash white carbon black alumina comprehensive utilization

HTML PDF Collect

Tuning of the active phase structure and hydrofining performance of alumina-supported tri-metallic WMoNi

Shufeng Shan, Haiyan Liu, Gang Shi, Xiaojun Bao

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 59-69 doi: 10.1007/s11705-017-1686-3

Abstract: The effects of phosphorus on the structure and hydrofining performance of tri-metallic WMoNi/Al O catalysts prepared with W/Mo-based hybrid precursor nanocrystals were investigated. The incorporation of phosphorus weakened the metal-support interactions (MSIs) and facilitated the formation of more synergetic NiWMoS phases with higher stacks. Catalytic tests using a fluid catalytic cracking diesel fuel showed that the changes in the MSIs and the morphology of the active phases had a more positive effect on the hydrodenitrogenation activity than on the hydrodesulfurization activity. In contrast, when phosphorus was incorporated into a tri-metallic WMoNiP/Al O catalyst prepared by a conventional incipient impregnation method, the MSIs decreased causing aggregation of the metal species which resulted in poorer hydrofining performance of the catalyst. These results show that incorporating phosphorus into a WMoNi/Al O catalyst can finely tune the structure of the active phase to enhance the hydrogenation and hydrodenitrogenation activity of the resulting tri-metallic catalyst.

Keywords： fluid catalytic cracking diesel hydrofining performance WMoNiP/Al₂O₃ synergetic effect and structure of NiWMoS phases

HTML PDF Collect

Enhanced methanation stability of nano-sized MoS

Zhenhua LI, Jia HE, Haiyang WANG, Baowei WANG, Xinbin MA

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1, Pages 33-39 doi: 10.1007/s11705-014-1446-6

Abstract: A series of unsupported MoS catalysts with or without Al O modification was prepared using a modified thermal decomposition approach. The catalysts were tested for the methanation of carbon monoxide and the optimum one has 25.6 wt-% Al O content. The catalysts were characterized by nitrogen adsorption measurement, X-ray diffraction and transmission electron microscopy. The results show that adding appropriate amount of Al O increases the dispersion of MoS , and the increased interaction force between MoS and Al O can inhibit the sintering of active MoS to some extent.

Keywords： unsupported catalyst molybdenum sulfide stability alumina methanation