Details

Autor(en) / Beteiligte

• Gómez‐Ramírez, Ana
• Montoro‐Damas, Antonio M.
• Cotrino, José
• Lambert, Richard M.
• González‐Elipe, Agustín R.

Titel

About the enhancement of chemical yield during the atmospheric plasma synthesis of ammonia in a ferroelectric packed bed reactor

Ist Teil von

• Plasma processes and polymers, 2017-06, Vol.14 (6), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Wiley Online Library All Journals

Beschreibungen/Notizen

• Plasma reactions offer an attractive alternative route for the synthesis of a variety of valuable chemical compounds. Here we investigate the parameters that determine the efficiency of ammonia synthesis in a ferroelectric packed bed dielectric barrier discharge (DBD) reactor. The effects of varying the operating frequency, the size of the ferroelectric pellets and the inter‐electrode distance have been systematically studied. Under optimised conditions nitrogen conversions in excess of 7% were achieved, higher than those previously obtained using DBD reactors. These findings are discussed with respect to variations in the electrical characteristics of the reactor under operating conditions and in the light of emission spectra obtained as a function of reactant flow rates. These encouraging results signpost future developments that could very substantially improve the efficiency of ammonia synthesis by means of DBD technology. The direct synthesis of ammonia from N2 and H2 is carried out in a packed‐bed ferroelectric barrier discharge reactor reaching nitrogen conversions as high as 7%, which was never achieved with plasma techniques. This outstanding efficiency is obtained thanks to the variation of operating parameters such as gas residence time, inter‐electrode distance, pellet size and frequency of the input electrical signal.