Steam Plasma Reforming of Biogas by Non-Thermal Pulsed Discharge

摘要

The purpose of this study was to develop technology that can convert biogas to synthesis gas (SynGas), a low emission substituted energy, using a non-thermal pulsed plasma method. To investigate the characteristics of the SynGas production from simulated biogas, the reforming characteristics were studied about the variations of pulse frequency, biogas component ratio (C_3H_8/CO_2), vapor flow ratio (H_2O/TFR), biogas velocity and pulse power. A maximum conversion rate of 49.1 % was achieved for the biogas when the above parameters were 500 Hz, 1.5, 0.52, 0.32 m/s and 657 W, respectively. Under the above-mentioned reference conditions, the dry basis concentrations of the SynGas were, H_2 64.5%, CH_4 8.1%, C_2H_2 6.7%, C_3H_6 4.9%, CO 0.8% and C_2H_4 0.4%. The ratio of hydrogen to the other intermediates in the SynGas (H_2/ITMs) was 3.1.