Application of Microwave Plasma to Biogas Reformulation

Yamamoto, Tsuyoshi; Uchiyama, S.; Kishida, Masahiro; Tanaka, Ryo

doi:10.1252/kakoronbunshu.46.123

Cited by 1 publication

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental apparatus used in this work is an improvement of the plasma-assisted spray combustion apparatus used in the previous work − for gas combustion. Figure shows a schematic of the premixed type microwave plasma-assisted combustion system.…”

Section: Methodsmentioning

confidence: 99%

“…Our previous work performed the partial oxidation reforming of biogas by using two circle nozzles (small and large circles) and showed that the reforming properties of the two nozzles are different. 31 In this study, the partial oxidation reforming of biogas under microwave plasma is evaluated by using four nozzle types: large circular, large rectangular, small circular, and small rectangular, and the effects of the nozzle size and shape are evaluated and considered by produced gas analysis and emission spectra in detail. Because microwave plasma has excellent decomposition capability, it is effective for decomposing the CH 4 in biogas, as well as the CO 2 component.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, microwave plasma-assisted combustion is applied to biogas, and the characteristics of the partial oxidation reforming reaction of biogas are investigated. Our previous work performed the partial oxidation reforming of biogas by using two circle nozzles (small and large circles) and showed that the reforming properties of the two nozzles are different . In this study, the partial oxidation reforming of biogas under microwave plasma is evaluated by using four nozzle types: large circular, large rectangular, small circular, and small rectangular, and the effects of the nozzle size and shape are evaluated and considered by produced gas analysis and emission spectra in detail.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Nozzle Shape on Partial Oxidation Reforming of Biogas Using Microwave Plasma

et al. 2021

Self Cite

View full text Add to dashboard Cite

Biogas, composed of ∼60% CH 4 and ∼40% CO 2 , is a carbon-neutral fuel but suffers from low flame stability. Thus, for effective utilization, the combustion reaction must be enhanced or biogas must be upgraded. Herein, microwave plasma-assisted combustion was utilized for partial oxidation reforming of biogas to enhance the reforming reaction and to upgrade biogas. The characteristics of the biogas reforming process and effects of the nozzle shape were investigated using four different nozzles. The small thin nozzle suppressed microwave attenuation to the greatest extent and thus most effectively promoted the reforming reaction. Microwave plasma not only reformed CH 4 into H 2 and CO but also decomposed CO 2 (which does not have any calorific value) into CO (which has calorific value); thus, the maximum cold gas efficiency achieved with the small thin nozzle was 112.7%, and the biogas was upgraded. Biogas reforming using O 2 as an oxidizer was also evaluated to improve the cold gas efficiency, but the cold gas efficiency undesirably decreased in this reaction relative to that using air with N 2 as the oxidizer because the reforming reactions are enhanced by increasing the active radicals like H and OH in the latter.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation