Decomposition of N2O Over Uncalcined Limestone Under Elevated CO2 Partial Pressure Conditions.
نویسندگان
چکیده
منابع مشابه
Effect of CO2 Partial Pressure on the Thermal Decomposition Kinetics of Zinc Carbonate Hydroxide (TECHNICAL NOTE)
In this work, the effect of carbon dioxide partial pressure on the calcination kinetics of high purity zinc carbonate hydroxide has been studied. Non-isothermal analysis has been performed on samples at different CO2 partial pressures by TGA and DTA. It has been found that the calcination behaviour of this material corresponds to the shrinking core model and the reaction mechanism is phase boun...
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An electron-rich zinc-modified zeolite Y material shows substantial activity for the decomposition of CO(2) to carbon with the release of O(2) at about 300 °C. It is elucidated that electrons delocalized in the vicinity of zinc cations in the zeolite material play an essential role in the decomposition reaction.
متن کاملEffect of dolomite decomposition under CO2 on its multicycle CO2 capture behaviour under calcium looping conditions.
One of the major drawbacks that hinder the industrial competitiveness of the calcium looping (CaL) process for CO2 capture is the high temperature (∼930-950 °C) needed in practice to attain full calcination of limestone in a high CO2 partial pressure environment for short residence times as required. In this work, the multicycle CO2 capture performance of dolomite and limestone is analysed unde...
متن کاملCrystallographic transformation of limestone during calcination under CO2.
The calcination reaction of limestone (CaCO3) to yield lime (CaO) is at the heart of many industrial applications as well as natural processes. In the recently emerged calcium-looping technology, CO2 capture is accomplished by the carbonation of CaO in a gas-solid reactor (carbonator). CaO is derived by the calcination of limestone in a calciner reactor under necessarily high CO2 partial pressu...
متن کاملEffect of Intermediated Chemical Compounds No on the Hybrid N2o Decomposition under Periodic Flow Reversal Conditions
Hybrid homogeneous-heterogeneous reactions can arise in catalytic reactions carried out at elevated temperatures. In this work, hybrid N2O decomposition is investigated at higher temperatures. Unsteadystate processes, such as the periodic flow reversal of fixed-bed reactors have a considerable impact on the way reaction behaviour develops within distributed systems. For the first time, we prese...
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ژورنال
عنوان ژورنال: Journal of the Japan Institute of Energy
سال: 1993
ISSN: 1882-6121,0916-8753
DOI: 10.3775/jie.72.199