AUTHOR=Gao Yan , Cao Qing , Guan Ning , Zhang Zhanchao , Fan Guolan , Dou Huawei , Li Shijie , Wang Qiang , Chen Baoming 

TITLE=Metal-Organic Framework Supporting Fe3O4 Prepared by Microwave in Couple With NTP to Eliminate VOCs From Biofuel

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.936493

DOI=10.3389/fenrg.2022.936493

ISSN=2296-598X

ABSTRACT=In the production process of briquette biofuel, terpenes such as pinene and camphene, as well as non-terpenoid VOCs such as formic acid, acetaldehyde, and benzene, are generated during conditioning, drying and other processes. adverse effects. Different catalysts of Fe3O4 supported by CoFe-ZIFs were prepared by thermal dissolution method and microwave and magnetic field dissolution method with changing the doping amount of iron. The structures of the materials were characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG), and scanning electron microscope (SEM). The catalytic performance for α-pinene was also tested on a fixed bed. The results show that, compared with the thermal dissolution method, the microwave and magnetic field dissolution method was easier to induce iron to form Fe3O4 grains with high activity. At the same time, the grains did not affect the formation of CoFe-ZIFs structure. Fe3O4 supported on CoFe-ZIFs enhanced the catalytic activity and energy efficiency of the catalysts for α-pinene. Among the test samples, CoFe14-ZIF-W prepared by microwave and magnetic field method with Fe doping 14%mol exhibited the stable structural characteristics and the highest catalytic efficiency of 94.3% and energy efficiency of 8.11 g·kWh-1, which provided a further possibility for practical application for the removal of VOCs from biomass.