Research on CH4-CO2 reforming over Ni-Fe catalyst enhanced by electric field

CH4-CO2 reforming is an important way to prepare syngas, but it is often difficult to achieve both high conversion rate and low energy consumption at the same time. High-voltage electric fields can provide high-density energy, and it helps to improve the catalytic effect as well as effectively reduce the reaction temperature. Based on the NiFe catalytic supported on active carbon(AC), a high-voltage electric field was added to the reforming system in this paper. The effects of temperature, electric field strength, and catalytic performance of the catalyst were investigated, then the promotion effect of high voltage electric field on the reforming reaction was revealed. The results show that the Ni-Fe/AC catalyst has better catalytic performance than the single-metal component catalyst, and the comparatively best catalytic effect can be achieved with 10% component loading. After adding a 9 mA electric field at 400 degrees C, the conversion of CH4 increased from almost 0-19.6%, which was 9 times higher than that of 1 mA, and the conversion of CO2 also increased to 29.3%. This indicated that the enhancement of electric field strength could effectively promote the reforming reaction. Finally, according to the catalyst characterization analysis, it is speculated that the electric field can stimulate the AC support to generate a large amount of active substance, which facilitates the entire catalytic process.

Automated summary

This paper investigates the effect of adding a high-voltage electric field to the reforming system with NiFe catalyst supported on active carbon. The results show that increasing the electric field strength can significantly enhance the conversion rate of the reforming reaction, and the NiFe/AC catalyst achieves the best catalytic effect at 10% component loading.