Method and apparatus for adding water vapor to the water vapor explosion pretreatment process

摘要

patent and method for adding water vapor to the water vapor explosion pretreatment process. The present invention relates to a method for treating cellulosic biomass feedstock which includes: feeding the feedstock to an upper inlet of a vertical reactor vessel, wherein the feedstock is deposited in a feedstock stack. cousin inside the vertical reactor vessel; adding thermal energy to heat the raw material by injecting water vapor into an upper region of the vertical reactor vessel; propel the raw material through an outlet in a lower region of the vertical reactor vessel by injecting water vapor into the biomass at or near the bottom outlet of the vertical reactor vessel and moving the raw material propelled by an expansion device, such as a water vapor explosion device, to subject the raw material to a water vapor explosion process.