Several methods have been developed for converting cellulose into ethyleneether cellulos. One approach involves pretreating the cellulose with enzymes or acids to break down the crystalline structure and make it more accessible to chemical reactions. The pretreated cellulose can then be subjected to a series of chemical reactions, including hydrolysis, fermentation, and pyrolysis, to produce ethylene. Another approach involves using microorganisms, such as bacteria or yeast, to directly convert cellulose into ethylene through fermentation processes.