Simultaneous dissociation of CO2 and H2O to syngas in a surface-wave microwave discharge

The Quest for Value‐Added Products from Carbon Dioxide and Water in a Dielectric Barrier Discharge: A Chemical Kinetics Study

“…were the first to investigate the conversions of CO 2 and H 2 O by means of a microwave plasma setup. Other researchers have considered a ferroelectric packed‐bed reactor, a dielectric barrier discharge (DBD), a DBD packed with a Ni/γ‐Al 2 O 3 catalyst, a surface discharge, a negative direct current (DC) corona discharge, and a surface‐wave microwave discharge …”

“…This has a beneficial effect for the H 2 /CO ratio, which increases drastically with the water content (see Figure S9). Moreover, it drops upon increasing the SEI, which is in line with the fifth observation reported in the literature . The latter can be explained by the effective H 2 O conversion, which starts to saturate with increasing SEI, whereas the effective CO 2 conversion keeps on rising.…”

“…Furthermore, nonthermal plasmas do not suffer from the several disadvantages of existing technologies, such as using expensive or scarce materials, the large size of the systems, inefficient energy input for heating of the systems, and short durability of the electrodes. Instead, it is a flexible, so called “turn‐key”, process operated by a power source and the desired gas mixture, and it can be built with durable inexpensive materials …”

“…Instead, it is af lexible, soc alled "turn-key",p rocess operated by ap owers ource and the desired gas mixture, and it can be built with durable inexpensive materials. [15] Just like electrochemical techniques, plasma technology uses electricity as an energy source.A ss uch, it can also pro-Recycling of carbon dioxide by its conversion into value-added products has gained significant interesto wing to the role it can play for use in an anthropogenicc arbon cycle.T he combined conversion with H 2 Oc ould even mimic the natural photosynthesis process. An interesting gas conversion technique currentlyb eing considered in the field of CO 2 conversion is plasma technology.T oi nvestigate whether it is also promising for this combined conversion,w ep erformed as eries of experiments and developed ac hemical kinetics plasma chemistry model for ad eeper understanding of the process.…”

Gliding Arc Plasmatron: Providing an Alternative Method for Carbon Dioxide Conversion

“…Due to its increasing interest, many researchers are investigating the splitting of CO 2 into CO and O 2 by plasma, both in pure CO 2 as well as in a mixture with other gases like CH 4 , H 2 , or H 2 O . When CO 2 is mixed with such a hydrogen source, value‐added chemicals can be produced, such as syngas, methanol, formaldehyde and formic acid.…”