Design and characterization of an electromagnetic‐resonant cavity microwave plasma reactor for atmospheric pressure carbon dioxide decomposition. Issue 2 (27th November 2018)

• Record Type: Journal Article
• Authors: Mohsenian, Sina; Sheth, Shyam; Bhatta, Saroj; Nagassou, Dassou; Sullivan, Daniel; Trelles, Juan P.
• Is Part Of: Plasma processes and polymers. Volume 16:Issue 2(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-11-27
• Subjects: carbon dioxide decomposition -- microwave discharge -- nonequilibrium atmospheric pressure plasma -- optical emission spectroscopy -- plasma stability; Plasma polymerization -- Periodicals; Plasma-enhanced chemical vapor deposition -- Periodicals; Plasma chemistry -- Periodicals
• DOI: 10.1002/ppap.201800153
• Languages: English
• ISSNs: 1612-8850

Abstract

Abstract : Plasma processes are ideally suited for the conversion of renewable electricity into gas‐phase reactivity, such as for the decomposition of carbon dioxide (CO2 ). The design, development, and characterization of a microwave plasma reactor for atmospheric pressure undiluted carbon dioxide decomposition are presented. The reactor operates as an electromagnetic‐resonant cavity in which the generated plasma forms a bulb attached to a converging‐diverging nozzle and stabilized by streams of tangentially injected processing gas. Electromagnetic wave confinement, residence time, and critical gas vorticity constitute fundamental reactor sizing and operation parameters. Experimental results show that flow rate plays a dual role in plasma stabilization and process performance, whereas deposited power has a minor role in CO2 decomposition. Abstract : An electromagnetic‐resonant cavity microwave plasma reactor is presented for atmospheric pressure undiluted carbon dioxide decomposition. The generated plasma displays a bulb shape inside the cavity and emerges as a jet by means of a converging‐diverging nozzle and tangential gas injection. The experimental and computational results indicate the reactor produces a well‐stabilized plasma and high process performance.