scholarly journals Carbon dioxide binary crystals via the thermal decomposition of RDX at high pressure

2017 ◽  
Vol 8 (7) ◽  
pp. 4872-4878 ◽  
Author(s):  
L. E. Connor ◽  
C. A. Morrison ◽  
I. D. H. Oswald ◽  
C. R. Pulham ◽  
M. R. Warren
Keyword(s):  
Carbon Dioxide ◽  
Thermal Decomposition ◽  
High Pressure ◽  
Nitrous Oxide ◽  
Binary Crystals

Binary crystals of carbon dioxide and nitrous oxide have been created from the decomposition of RDX.

The thermal decomposition of nitrous oxide II. Influence of added gases and a theory of the kinetic mechanism

1955 ◽  
Vol 231 (1185) ◽  
pp. 178-197 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Thermal Decomposition ◽  
Nitrous Oxide ◽  
Initial Pressure ◽  
Kinetic Mechanism ◽  
Gas Pressure ◽  
Unimolecular Reactions ◽  
Chemical Decomposition ◽  
First Order ◽  
Decomposition Of Nitrous Oxide

The influence of foreign gas additions (argon, nitrogen, carbon dioxide, carbontetrafluoride and mixtures of them) on the thermal decomposition of nitrous oxide at a series of different initial pressures has been studied. The curves of k , the formal first-order constant, as a function of x , the foreign-gas pressure, show regions of rapidly falling slope analogous to those found in the curves of k against n , the initial pressure of nitrous oxide. The forms of the curves have been investigated in some detail, and suggest very strongly the existence of potentially rate-determining processes other than those normally assumed in unimolecular reactions (which are energization of molecules in collisions and chemical decomposition of these molecules). It is now postulated that spontaneous and collision-induced transfers of energized nitrous oxide molecules to trip let states constitute the processes in question, and on this basis the forms of the k , n and k , x curves are interpreted. This postulate links up with certain spectroscopic considerations previously advanced by Herzberg.

Thermal decomposition of di-tert-butyl peroxide at high pressure

1968 ◽  
Vol 46 (16) ◽  
pp. 2721-2724 ◽  
Author(s):  
D. H. Shaw ◽  
H. O. Pritchard
Keyword(s):  
Carbon Dioxide ◽  
Thermal Decomposition ◽  
High Pressure ◽  
Shock Tube ◽  
Total Pressure ◽  
Order Rate Constant ◽  
Kcal Mole ◽  
First Order ◽  
Tert Butyl ◽  
Butyl Peroxide

The thermal decomposition of di-tert-butyl peroxide has been studied in the presence of carbon dioxide at total pressures from 0.05 to 15 atm and temperatures from 90–130 °C. The first-order rate constant for the decomposition is independent of total pressure in this range, with Arrhenius parameters E = 37.8 ± 0.3 kcal/mole and log A(s−1) = 15.8+0.2. A reevaluation of previous data on this reaction leads us to recommend E = 37.78 ± 0.06 kcal/mole and log A(s−1) = 15.80 ± 0.03 over the temperature range 90–350 °C; extension of this range to higher temperatures using a shock tube would be worthwhile.

scholarly journals The degradation of cellulose in ionic mixture solutions under the high pressure of carbon dioxide

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3484-3494
Author(s):  
Sumarno ◽  
Prida Novarita Trisanti ◽  
Bramantyo Airlangga ◽  
Novi Eka Mayangsari ◽  
Agus Haryono
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Hydrothermal Process ◽  
Reducing Sugar

Cellulose processing by a hydrothermal process as well as in combination with a sonication pretreatment under a CO2 pressurization that affects the morphology and reducing sugar products.

Tidal rewetting in salt marshes triggers pulses of nitrous oxide emissions but slows carbon dioxide emission

2021 ◽  
Vol 156 ◽  
pp. 108197
Author(s):  
Hollie E. Emery ◽  
John H. Angell ◽  
Akaash Tawade ◽  
Robinson W. Fulweiler
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Salt Marshes ◽  
Carbon Dioxide Emission ◽  
Nitrous Oxide Emissions

scholarly journals Greenhouse gas emissions from the water–air interface of a grassland river: a case study of the Xilin River

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xue Hao ◽  
Yu Ruihong ◽  
Zhang Zhuangzhuang ◽  
Qi Zhen ◽  
Lu Xixi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Land Use ◽  
Nitrous Oxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Ghg Emissions ◽  
Nitrous Oxide Emissions ◽  
Gas Emissions ◽  
Sand Land ◽  
Very High

AbstractGreenhouse gas (GHG) emissions from rivers and lakes have been shown to significantly contribute to global carbon and nitrogen cycling. In spatiotemporal-variable and human-impacted rivers in the grassland region, simultaneous carbon dioxide, methane and nitrous oxide emissions and their relationships under the different land use types are poorly documented. This research estimated greenhouse gas (CO2, CH4, N2O) emissions in the Xilin River of Inner Mongolia of China using direct measurements from 18 field campaigns under seven land use type (such as swamp, sand land, grassland, pond, reservoir, lake, waste water) conducted in 2018. The results showed that CO2 emissions were higher in June and August, mainly affected by pH and DO. Emissions of CH4 and N2O were higher in October, which were influenced by TN and TP. According to global warming potential, CO2 emissions accounted for 63.35% of the three GHG emissions, and CH4 and N2O emissions accounted for 35.98% and 0.66% in the Xilin river, respectively. Under the influence of different degrees of human-impact, the amount of CO2 emissions in the sand land type was very high, however, CH4 emissions and N2O emissions were very high in the artificial pond and the wastewater, respectively. For natural river, the greenhouse gas emissions from the reservoir and sand land were both low. The Xilin river was observed to be a source of carbon dioxide and methane, and the lake was a sink for nitrous oxide.

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