Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Non-thermal plasma"”.
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Non-thermal plasma for water treatment
Plasma generated in contact with water has been extensively investigated in various electrode geometries and various discharge types for water treatment, of which the applications have been employed industrially on different scales. The reactive species such as OH radicals, O3, H2O2 and HO2 can be …
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Nitric oxide reduction by non-thermal plasma and catalysis
… and modifications to the SCR technology. Non-thermal plasma technique has been found to be one of the most promising technologies for NOx removal.</p><p>In the present study, a non-thermal plasma technique in the form of dielectric barrier discharge (DBD) has been extensively investigated …
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Non-thermal Plasma Assisted Catalytic Upgrading of Low-cost Hydrocarbons
… pressure) is explored with the assistance of non-thermal plasma. This novel technology can effectively convert methane at near ambient temperature and atmospheric pressure. A methane conversion higher than 40% can be achieved over the SBA-15 catalyst. Unlike the conventional thermos-catalytic …
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Transformation of biomass to value-added chemicals through non-thermal plasma
This study explored non-thermal plasma (NTP) conversions of lignocellulosic biomass for producing biobased chemicals. Non-thermal plasma is emerging as a promising green, low-energy technology for biomass conversion, benefited by its ability to produce chemically reactive environment at mild …
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Sustainable atmospheric ammonia synthesis and nitrogen fixation using non-thermal plasma (NTP)
… the level of small farms and local communities. Non-thermal plasma technology represents a promising alternative method of clean ammonia synthesis, as it circumvents the volatile operating conditions, fossil fuel use, and high capital costs of the Haber-Bosch process. In this thesis research, …
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Intensification of Micro-Plasma Bubble Processing for N-Fixation and its Potential Application
This thesis investigated the intensification of non-thermal micro-plasma bubble processing for nitrogen fixation and reviewed its application both on Earth and in space. The study was carried out by performing five main tasks, these being: (1) air/N2 plasma processing in batch water/recycling water …
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Production of Chemicals from Air Through Electrocatalytic Nitrogen and Oxygen reduction
… activation of N2 to NOx – is realized by a non-thermal plasma technique and highly selective conversion of NOx – to NH3 by electrocatalytic reduction. In the third part of this Thesis (Chapter 6), the electrochemical reduction of O2 via a twoelectron reaction pathway for sustainable and …
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Numerical and Experimental Study of the Trichel Pulses in Needle-plane Geometry
One of the unique aspects of the negative corona discharges in the air is the regular train of pulses that form the discharge current, called Trichel pulses. These pulses are the result of the combination of several phenomena such as the avalanche ionization of the neutral molecules by the impact …
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Studies on the Conversion of Atmospheric Carbon Dioxide to Methanol
… the inherent tendency for copper to catalyse the non-selective production of CO – a function performed best by the ZrOₓ, found here to be amorphous in catalysts produced by coprecipitation. Spectroscopic studies of the catalysts showed that Cu-ZnO and Cu-ZrOₓ catalyse methanol synthesis via a …
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Droplet and Particle Dynamics in Aerosol Reactors and Environmental System
… understanding of particle charging in a non-thermal plasma reactor, with a vision to incorporate plasma reactors in conjunction with the conventionally used particle capture devices, thereby increasing their efficiency for particle capture. We tested a new design concept for enhancing …
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Wool fabric plasma treatment: resulting properties evaluation and applications in field
… come from technological transfer from research. Plasma treatment being based on a gaseous technology does not require to use many chemicals, as well as the precious resource given by freshwater. In this view, plasma treatment of textile materials appears very promising in replacing a number of …