Research progress on co-processing of bio-oil and vacuum gas oil to produce gasoline and diesel in FCC units
Bio-gasoline and diesel products can be made from agricultural and forestry wastes,algae and other biomass raw materials through thermochemical and hydro-cracking conversion.They can partially replace fossil fuels due to the sustainable and renewable features,which has attracted wide attention in the past decades.The production cost of gasoline and diesel products obtained from bio-refinery is relatively high,and how to reduce its production cost is still a hot research topic.Because bio-refinery and crude oil refinery both have hydrotreating and cracking units,and bio-oil and vacuum gas oil(VGO)have the similar physical and chemical properties,the co-processing of bio-oil and VGO in FCC units is proposed.This paper focuses on the study of the co-processing and related simulation studies,introduces the co-processing,the source of biomass,the preparation method of bio-oil,and the co-refining mechanism,summarizes the influence of the co-refining ratio,the current status of its technological scaling up as well as the influence of the oxygen content of the bio-oil on the product,and explains its process optimization and evaluation in combination with simulation studies.The problems and future developments are also discussed.From the conclusion,it is clear that co-processing is a green technology with technical feasibility and economic viability.
biomassbio-oilvacuum gas oilco-processingsimulationoptimization
万方数据
维普
