搜索结果: 1-15 共查到“化学工程 temperature”相关记录15条 . 查询时间(0.156 秒)
New Efficient,Low-Temperature Catalyst for Converting Water and CO to Hydrogen Gas and CO2
Low-Temperature Catalyst Converting Water CO to Hydrogen Gas CO2
2017/7/24
Scientists have developed a new low-temperature catalyst for producing high-purity hydrogen gas while simultaneously using up carbon monoxide (CO). The discovery—described in a paper set to publish on...
High-temperature devices made from films that bend as they “breathe”
High-temperature devices films that bend breathe
2017/7/20
Carrying out maintenance tasks inside a nuclear plant puts severe strains on equipment, due to extreme temperatures that are hard for components to endure without degrading. Now, researchers at MIT an...
2017高温腐蚀戈登学术会议（The 2017 Gordon Research Conference on High Temperature Corrosion）
2017 高温腐蚀戈登 学术会议
2017/1/13
The understanding of the reactivity between functional or structural materials with their environment at high temperature is a key of progress for many industrial applications. This understanding need...
Researchers Find New Phase of Carbon,Make Diamond at Room Temperature
Researchers Carbon Diamond Room Temperature
2015/12/8
We report the discovery of new phase of carbon (referred to as Q-carbon) and address fundamental issues related to direct conversion of carbon into diamond at ambient temperatures and pressures in air...
Effects of oxidation pretreatment temperature on Kovar used as CO2 reforming catalyst
CO2 reforming catalyst Kovar oxidation pretreatment
2014/5/26
The effect of oxidation pretreatment temperature (500~1 000 ℃) on the catalytic activity of Kovar applied on hydrocarbon CO2 reforming was examined. Catalytic performance evaluation using tetradecane ...
Low temperature adsorption of CO on modified, vicinal Cu(100) surfaces：A comparative study
Carbon monoxide Copper(100) vicinal surface Potassium modified surface
2014/3/11
The experimental results of the adsorption of CO on clean and potassium-modified vicinal Cu(100) surfaces at 125 K were present. We studied three surfaces under identical experimental conditions. At 1...
CoFe2O4 nanoparticles：An efficient heterogeneous magnetically separable catalyst for “click” synthesis of arylidene barbituric acid derivatives at room temperature（图）
Magnetically separable catalyst Arylidene barbituric acid derivative Aqueous ethanol Superparamagnetic CoFe2O4 nanoparticle Heterogeneous catalyst
2013/9/25
A coprecipitation method was used to synthesize superparamagnetic CoFe2O4 nanoparticles without using any capping agents/surfactants. The prepared nanoparticles were characterized using Fourier transf...
In situ generated acylimidazolium acetate as an efficient catalyst and acylating agent for the acetylation of alcohols, phenols, and amines at ambient temperature（图）
Acetylation Acylimidazolium acetate Imidazole Ionic liquid
2013/9/25
Acylimidazolium acetate was readily prepared in situ from the reaction of imidazole with acetic anhydride and subsequently acted as a catalyst and acylating agent for the efficient acetylation of alco...
Low temperature CO oxidation over mesoporous CuFe2O4 nanopowders synthesized by a novel sol-gel method（图）
Carbon monoxide oxidation CuFe2O4 solid solution Sol-gel Nanopowder Propylene oxide Iron oxide
2013/9/25
Mesoporous CuFe2O4 solid solution nanopowders with high specific surface areas were synthesized by a novel, very simple and inexpensive sol-gel route using propylene oxide as gelation agent, and used ...
Parametric Study on the Deactivation of Supported Co3O4 Catalysts for Low Temperature CO Oxidation（图）
carbon monoxide oxidation supported cobalt oxides deactivation reaction parameters feed compositions
2013/10/13
This study focused on the influences of a variety of reaction parameters and guest molecules such as H2O and C3H8 on the deactivation of supported Co3O4 catalysts for CO oxidation. Additionally, the p...
THE '3R' ANTHRACITE CLEAN COAL TECHNOLOGY: ECONOMICAL CONVERSION OF BROWNCOAL TO ANTHRACITE TYPE CLEAN COAL BY LOW TEMPERATURE CARBONIZATION PRE-TREATMENT PROCESS
clean coal carbonization anthracite thermolysis
2009/10/13
The preventive pre-treatment of low grade solid fuels is safer, faster, better and less costly versus the "end-of-the-pipe" post treatment solutions. The "3R" Recycle-Reduce-Reuse integrated environme...
EFFECT OF TEMPERATURE ON A FREE ENERGY AND EQUILIBRIUM CONSTANTS DURING DRY FLUE GAS DESULPHURISATION CHEMICAL REACTIONS
sulphur-dioxid free energy equilibrium constant
2009/10/13
During dry flue gas desulphurisation (FGD) dry particles of reagents are inserted (injected) in the stream of flue gas, where they bond SO2. As reagents, the most often are used compounds of calcium (...
Determination of Thermodynamic Parameters of Some Fluorochlorohydrocarbons in Acetone by Gas Chromatography at Low Temperature and Pressurization
low temperature pressurization chromatography
2009/4/27
Determination of Thermodynamic Parameters of Some Fluorochlorohydrocarbons in Acetone by Gas Chromatography at Low
Temperature and Pressurization。
Runaway Criterion in Fixed Bed Catalytic Reactors with Radial Temperature Profile
固定床 催化反应器 参数灵敏度
2009/3/25
The discrepancy between pseudo-homogeneous one-dimensional model and peeudo-homogeneous two-dimensional model is studied. It is found that there are great differences between two models. This paper...
Rapid Thermal Annealing and Hydrogen Passivation of Polycrystalline Silicon Thin-Film Solar Cells on Low-Temperature Glass
Silicon Thin-Film Solar Cells Low-Temperature Glass
2008/10/30
The changes in open-circuit voltage (Voc), short-circuit current density (Jsc), and internal quantum efficiency (IQE) of aLuminum induced crystallization, ion-assisted deposition (ALICIA) polycrystall...