Abstract: This present invention relates to a paralleled power conditioning system with circulating current filter, comprising: an input terminal for receiving a input power; a plurality of power conditioning units; and a load. Each power conditioning unit includes: a DC/DC converter coupled to the input for receiving the input power so as to convert the input power to a DC voltage; a DC/AC inverter coupled to the DC/DC converter for converting the DC voltage to a AC voltage; and a filter coupled to the DC/AC inverter for eliminating the noise generated by the AC voltage and the circulating current among the plurality of power conditioning units so as to generate a filter voltage. The load is connected to the plurality of power conditioning units. The plurality of power conditioning units are connected in parallel to the load.

Abstract: This present invention provides the preparation of a manganese oxide-ferric oxide-supported nano-gold catalyst and a process for subjecting carbon monoxide and oxygen to interaction resulting in the formation of carbon dioxide in a hydrogen-rich environment by a manganese oxide-ferric oxide-supported nano-gold catalyst to remove carbon monoxide in hydrogen stream. The size of the nano-gold particle is less than 5 nm and supported on mixed oxides MnO2/Fe2O3 in various molar ratios. Preferential oxidation of CO in the presence of CO, O2 and H2 by the manganese oxide-ferric oxide-supported nano-gold catalyst is carried out in a fixed-bed reactor in the process of the present invention. The O2/CO molar ratio is in the range of 0.5 to 4. The manganese oxide-ferric oxide-supported nano-gold catalyst of the present invention is applied to reduce CO concentration in hydrogen steam to less than 100 ppm to prevent CO from contaminating the electrodes of a fuel cell.

Abstract: This present invention provides the preparation of a manganese oxide-cerium oxide-supported nano-gold catalyst and a process for subjecting carbon monoxide and oxygen to interaction resulting in the formation of carbon dioxide in a hydrogen-rich environment by a manganese oxide-cerium oxide-supported nano-gold catalyst to remove carbon monoxide in hydrogen stream. The size of the nano-gold particle is less than 5 nm and supported on mixed oxides MnO2/CeO2 in various molar ratios. Preferential oxidation of CO in the presence of CO, O2 and H2 by the manganese oxide-cerium oxide-supported nano-gold catalyst is carried out in a fixed-bed reactor in the process of the present invention. The CO/O2 molar ratio is in the range of 0.5 to 3. The manganese oxide-cerium oxide-supported nano-gold catalyst of the present invention is applied to reduce CO concentration in hydrogen steam to less than 100 ppm to prevent CO from contaminating the electrodes of a fuel cell.

Abstract: The present invention is related to a fuel cell combining a stack and a reformer, which comprises a stack having a coupling part and a reformer having a conjugate part. The conjugate part of the reformer may couple to the coupling part of the stack. The full cell according to the present invention reduces the volume, fully utilizes thermal energy, and reduces the use of raw materials to minimize expenses.

Abstract: A fuel cell system has a distributor, at least one catalytic converter for the reformation reaction and a stack. When the fuel cell system has more than two catalytic converters for the reformation reaction a converging chamber can be added into the system to input the hydrogen gas generated by the catalytic converter for the reformation reaction to the stack. Therefore, the present invention can integrate the catalytic converter for the reformation reaction and the stack to reduce both the cost and fuel cell volume, and save fuel.