Modified gasification slag biodiesel catalyst as well as preparation method and application thereof

The invention discloses a modified gasified slag biodiesel catalyst as well as a preparation method and application thereof, wherein the gasified slag is modified through copper nitrate, sodium hydroxide and irradiation treatment, the active groups of the gasified slag are effectively activated, the modified gasified slag is further loaded with copper oxide and other active components, and the catalytic activity is remarkably improved. The catalyst is low in preparation cost, easy to operate, low in energy consumption, simple in process and environmentally friendly; the obtained catalyst is free of peculiar smell and high in activity; in the transesterification reaction process, the catalyst can effectively strengthen the transesterification reaction of alcohol oil, is good in reusability,and has simple in separation and purification process. In addition, the catalyst can be effectively separated and purified through simple operations of filtering and washing. 本发明公开了一种改性气化渣生物柴油催化剂及其制备方法及应用，通过硝酸铜、氢氧化钠及辐照处理对气化渣