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Steam enhanced carbon dioxide reforming of methane in DBD plasma reactor by Qi Wang; Huiliang Shi; Binhang Yan; Yong Jin; Yi Cheng is a Engineering article available to read on EtoBox.

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Considering the inevitable high energy input to implement the CO 2 reforming of methane under high-temperature operation using conventional catalysis method, the low temperature conversion of CO 2 and methane in the coaxial dielectric barrier discharge (DBD) plasma reactor was investigated in this work. Steam was introduced to enhance the CO 2 reforming of methane with synergetic catalysis effect by cold plasma and catalyst. The experimental results showed that a certain percent of steam could promote the conversion of both CH 4 and CO 2 . Meanwhile, the carbon deposition was evidently reduced compared with the dry reforming of methane. With the increase of steam input, the steam reforming occurred predominantly. As a result, the hydrogen volume percentage in the product gases increased. In this way, the products with different H 2 /CO ratio could be achieved by changing the mole ratio of CH 4 /CO 2 /H 2 O at the reactor inlet. In particular, when the mole ratio of H 2 O/CH 4 increased to almost 3 corresponding to the pure steam reforming process, the conversion of CH 4 reached almost 0.95 and the selectivity to H 2 was almost 0.99 at 773K.

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Author

Qi Wang; Huiliang Shi; Binhang Yan; Yong Jin; Yi Cheng

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0360-3199)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)