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Hydrogen production via biomethane reforming in DBD reactor Mirosław Dors, Tomasz Izdebski, Artur Berendt and Jerzy Mizeraczyk Centre for Plasma and Laser.

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Presentation on theme: "Hydrogen production via biomethane reforming in DBD reactor Mirosław Dors, Tomasz Izdebski, Artur Berendt and Jerzy Mizeraczyk Centre for Plasma and Laser."— Presentation transcript:

1 Hydrogen production via biomethane reforming in DBD reactor Mirosław Dors, Tomasz Izdebski, Artur Berendt and Jerzy Mizeraczyk Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences ISNTP-8, Camaret, France, 25th-29th June 2012

2 2 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Introduction ISNTP-8, Camaret, France, 25th-29th June 2012 The aim Efficient production of hydrogen from biomethane Is there any influence of the supply parameters on hydrogen production efficiency? Motivation The growing interest in using biofuels Catalyst deactivation by H 2 S traces in biomethane A few papers only on H 2 production from real biomethane using plasma methods

3 3 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Biomethane – composition ISNTP-8, Camaret, France, 25th-29th June 2012

4 4 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences DBD reactor ISNTP-8, Camaret, France, 25th-29th June 2012  Quartz glass tube: inner diameter 15 mm  RVC (Reticulated Vitreous Carbon) electrode: ­outer diameter 8 mm, ­inner diameter 3 mm, ­length 150 mm; ­low porosity 80 ppi (pores per inch),  Gas composition and flow rate: ­CH 4 :CO 2 = 70%:30% ­200 cm 3 /min. OES GC-TCD, FTIR

5 5 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Power supply ISNTP-8, Camaret, France, 25th-29th June 2012 AC sinusoid voltage Function generator Tektronix AFG3101, Amplifier TREK 40/15, Frequency up to 2 kHz In this work up to 35 kVp-p Nanosecond pulses Pulse generator NPG-15/2000 by Megaimpulse Ltd., In this work: -29 kV, 50 Hz – 2.5 kHz

6 6 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Results – gas composition ISNTP-8, Camaret, France, 25th-29th June 2012 CH 4 + CO 2 = 2 CO + 2 H 2 ???

7 7 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Results – modelling in TER ISNTP-8, Camaret, France, 25th-29th June 2012 CH 4 + CO 2 = 2 CO + 2 H 2 H 2 /CO=1/1

8 8 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Results – gas composition (cont.) ISNTP-8, Camaret, France, 25th-29th June 2012 close to TER

9 9 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Results – optical emission spectroscopy ISNTP-8, Camaret, France, 25th-29th June 2012 no C 2 Swan system, no CN system no soot deposition, no changes along the reactor

10 10 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Results – summary ISNTP-8, Camaret, France, 25th-29th June 2012

11 11 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Tasks in progress ISNTP-8, Camaret, France, 25th-29th June 2012 GC FTIR 2D OES-ICCD H 2 O admixture H 2 S admixture Higher temperature (up to 250 o C) Ni-catalyst

12 12 Centre for Plasma and Laser Engineering The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences Summary and conclusions ISNTP-8, Camaret, France, 25th-29th June 2012 Hydrogen production and methane conversion degree increase linearly with discharge power in the range of up to 50 W Nanosecond voltage pulses are much more efficient in hydrogen production than AC sinusoid voltage Conversion of methane in DBD exhibits different chemistry than that typical for thermodynamic equilibrium. Where is the rest of C?


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