Conversion of Greenhouse Gases to Value Added Products Assisted By Catalytic Nonthermal Plasma

Mahammadunnisa, Shaik and Ch, Subrahmanyam (2014) Conversion of Greenhouse Gases to Value Added Products Assisted By Catalytic Nonthermal Plasma. PhD thesis, Indian Institute of Technology Hyderabad.

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Abstract

The negative impact the greenhouse gases, especially carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) on the environment is well established and development of suitable technologies is warranted in order to regulate their increasing concentrations in the atmosphere. Co-processing of these gases has the advantage of waste minimization, energy production, resource utilization and pollution control. However, as the activation of these gases is highly endothermic, conventional thermocatalytic techniques may not be effective. In this context, nonthermal plasma (NTP) generated by electrical discharges was proposed as an alternative to the conventional methods. NTP created by electrical discharges generate the energetic electrons that colloid with the target gas molecules to decompose them without increasing the temperature of the back ground gas. However, as NTP is non–selective, catalytic NTP was proposed, in order to improve the selectivity to the desired product. The objectives of this research work were to explore NTP for the conversion of the selected greenhouse gases to value added products and to arrive at the suitable catalyst combination to obtain the best selectivity to the desired products like syngas and methanol. This presentation will focus on

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