Heterogeneous formulation of the tricopper complex for efficient catalytic conversion of methane into methanol at ambient temperature and pressure

2016 ◽  
Vol 9 (4) ◽  
pp. 1361-1374 ◽  
Author(s):  
Chih-Cheng Liu ◽  
Chung-Yuan Mou ◽  
Steve S.-F. Yu ◽  
Sunney I. Chan
Keyword(s):  
Ambient Temperature ◽  
Heterogeneous Catalyst ◽  
Catalytic Conversion ◽  
Ambient Conditions ◽  
Selective Conversion ◽  
Conversion Of Methane ◽  
Temperature And Pressure

The development of a heterogeneous catalyst capable for efficient selective conversion of methane into methanol with multiple turnovers under ambient conditions is reported here.

scholarly journals Ambient Temperature and Pressure Corrections for Aircraft Gas Turbine Idle Pollutant Emissions

1976 ◽  
Author(s):  
J. W. Marzeski ◽  
W. S. Blazowski
Keyword(s):  
Ambient Temperature ◽  
Ambient Pressure ◽  
Pressure Ratio ◽  
Operating Conditions ◽  
Pollutant Emissions ◽  
Pollutant Emission ◽  
Emission Model ◽  
Correction Factors ◽  
Ambient Conditions ◽  
Temperature And Pressure

Recent investigations have indicated that aircraft engine exhaust emissions are sensitive to ambient conditions. This paper reports on combustor rig testing intended to evaluate variations due to ambient temperature and pressure with special emphasis on idle engine operating conditions. Empirically determined CO, CxHy, and NOx correction factors — the ratio of the pollutant emission index value obtained during standard day operation to that resulting during actual ambient conditions — are presented. The effects of engine idle cycle pressure ratio, primary zone fuel-air ratio, and fuel type were investigated. Ambient temperature variations were seen to cause substantial emission changes; correction factors in excess of 2.0 were determined in some cases. Ambient pressure variations were found to be less substantial. A previously published NOx emission model and a simplified hydrocarbon combustion analysis are shown to be in general agreement with the empirical results.

Efficient catalytic conversion of terminal/internal epoxides to cyclic carbonates by porous Co(ii) MOF under ambient conditions: structure–property correlation and computational studies

2019 ◽  
Vol 7 (6) ◽  
pp. 2884-2894 ◽  
Author(s):  
Bhavesh Parmar ◽  
Parth Patel ◽  
Renjith S. Pillai ◽  
Rukhsana I. Kureshy ◽  
Noor-ul H. Khan ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Catalytic Conversion ◽  
Ambient Condition ◽  
Computational Studies ◽  
Cyclic Carbonates ◽  
Structure Property ◽  
Ambient Conditions ◽  
Property Correlation

Efficient CO2 capture/utilization by Co(ii) MOF as a heterogeneous catalyst in CO2–epoxide cycloaddition at ambient condition has been investigated and correlated with computational studies.

Improved heterogeneous catalytic conversion of methane to methanol at ambient conditions

2020 ◽  
Vol 8 (5) ◽  
pp. 104103
Author(s):  
Sehba Anjum Mumtaz Ahmed ◽  
Nagarkar Jidnyasa ◽  
Reddithota J. Krupadam ◽  
Girivyankatesh Hippargi ◽  
Y. Taraka Prabhu ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Ambient Conditions ◽  
Heterogeneous Catalytic ◽  
Conversion Of Methane

scholarly journals Electro-synthesis of ammonia from nitrogen at ambient temperature and pressure in ionic liquids

2017 ◽  
Vol 10 (12) ◽  
pp. 2516-2520 ◽  
Author(s):  
Fengling Zhou ◽  
Luis Miguel Azofra ◽  
Muataz Ali ◽  
Mega Kar ◽  
Alexandr N. Simonov ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ambient Temperature ◽  
Ambient Conditions ◽  
Liquid Media ◽  
Faradaic Efficiency ◽  
Temperature And Pressure

High faradaic efficiency reduction of N2 to NH3 is achieved in ionic liquid media under ambient conditions.

scholarly journals Synthesis of short-range ordered aluminosilicates at ambient conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Katharina R. Lenhardt ◽  
Hergen Breitzke ◽  
Gerd Buntkowsky ◽  
Erik Reimhult ◽  
Max Willinger ◽  
...  
Keyword(s):  
Short Range ◽  
Spatial Arrangement ◽  
Aluminium Chloride ◽  
Ambient Conditions ◽  
Soils And Sediments ◽  
Submicron Scale ◽  
Mineral Structure ◽  
Temperature And Pressure ◽  
Physical And Chemical ◽  
Microscopic Techniques

AbstractWe report here on structure-related aggregation effects of short-range ordered aluminosilicates (SROAS) that have to be considered in the development of synthesis protocols and may be relevant for the properties of SROAS in the environment. We synthesized SROAS of variable composition by neutralizing aqueous aluminium chloride with sodium orthosilicate at ambient temperature and pressure. We determined elemental composition, visualized morphology by microscopic techniques, and resolved mineral structure by solid-state 29Si and 27Al nuclear magnetic resonance and Fourier-transform infrared spectroscopy. Nitrogen sorption revealed substantial surface loss of Al-rich SROAS that resembled proto-imogolite formed in soils and sediments due to aggregation upon freezing. The effect was less pronounced in Si-rich SROAS, indicating a structure-dependent effect on spatial arrangement of mass at the submicron scale. Cryomilling efficiently fractured aggregates but did not change the magnitude of specific surface area. Since accessibility of surface functional groups is a prerequisite for sequestration of substances, elucidating physical and chemical processes of aggregation as a function of composition and crystallinity may improve our understanding of the reactivity of SROAS in the environment.

Characteristics of Preheated Bio-Oil Sprays Produced by an Air-Blast Injector

2010 ◽  
Author(s):  
Heena V. Panchasara ◽  
Ajay K. Agrawal
Keyword(s):  
Laser Sheet ◽  
Inlet Temperature ◽  
Mass Ratio ◽  
Ambient Conditions ◽  
Air Blast ◽  
Visualization System ◽  
Radial Profiles ◽  
Significant Difference ◽  
Bio Oil ◽  
Temperature And Pressure

In this study the vegetable oil (VO) is preheated to reduce the kinematic viscosity, and thus, improve atomization. A commercial air-blast atomizer is used to produce the VO spray at ambient conditions of temperature and pressure. Characteristics of the resulting spray are measured using a laser sheet visualization system and a Phase Doppler Particle Analyzer system. Experiments are conducted for VO temperatures varying from 40 C to 100 C and air to liquid mass ratio (ALR) of 2.0 and 4.0. Results show a decrease in Sauter Mean Diameter with an increase in VO temperature, regardless of the ALR. Radial profiles show larger droplets migrating towards the edge of the spray and smaller droplets in the interior spray region. Results show a significant difference in distributions of mean and root mean square axial velocity profiles as the VO inlet temperature is increased for a fixed ALR. Higher VO inlet temperature and higher ALR produced a narrower spray with smaller diameter droplets and higher peak axial velocities. Overall, this study has shown that preheating VO improves atomization by producing spray with smaller diameter droplets.

scholarly journals Bulk Liquid Water at Ambient Temperature and Pressure from MP2 Theory

2013 ◽  
Vol 4 (21) ◽  
pp. 3753-3759 ◽  
Author(s):  
Mauro Del Ben ◽  
Mandes Schönherr ◽  
Jürg Hutter ◽  
Joost VandeVondele
Keyword(s):  
Ambient Temperature ◽  
Liquid Water ◽  
Bulk Liquid ◽  
Temperature And Pressure

scholarly journals Reactor Design for CO2 Photo-Hydrogenation toward Solar Fuels under Ambient Temperature and Pressure

Catalysts ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 63 ◽  
Author(s):  
Chun-Ying Chen ◽  
Joseph Yu ◽  
Van-Huy Nguyen ◽  
Jeffrey Wu ◽  
Wei-Hon Wang ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Reactor Design ◽  
Solar Fuels ◽  
Temperature And Pressure
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