Title :
Hydrogen generation from water, methane, and methanol with nonthermal plasma
Author :
Kabashima, Hajime ; Einaga, Hisahiro ; Futamura, Shigeru
Author_Institution :
Nat. Inst. of Adv. Sci. & Technol., Tsukuba, Japan
Abstract :
Hydrogen generation from water, methane, and methanol was investigated with different types of nonthermal plasma reactors under different conditions. With a ferroelectric packed-bed reactor in N/sub 2/, hydrogen gas yield decreased in the order: methanol>methane>water. A similar trend was observed with a silent discharge plasma reactor, but substrate conversions were much lower with the latter reactor. At fixed specific energy densities, higher H/sub 2/ yields were obtained at higher gas flow rates in the reactions of the above substrates. The initial water concentration was optimized at ca. 2.0% to obtain the largest H/sub 2/ amount. Background O/sub 2/ suppressed H/sub 2/ yield. The ferroelectric packed-bed reactor could be operated continuously for 10 h without any decrease in H/sub 2/ yield.
Keywords :
hydrogen economy; plasma chemistry; plasma devices; 10 h; H/sub 2/; N/sub 2/; O/sub 2/; ferroelectric packed-bed reactor; fixed specific energy densities; higher gas flow rates; hydrogen gas yield; hydrogen generation; latter reactor; methane; methanol; nonthermal plasma; nonthermal plasma reactors; silent discharge plasma reactor; substrate conversions; substrates; water; Electrodes; Ferroelectric materials; Fluid flow; Fuel cell vehicles; Hydrogen; Inductors; Methanol; Nuclear and plasma sciences; Plasma properties; Plasma temperature;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955493
