摘要:
Algae-derived synthetic coal and filtrates. The invention described herein provides an algae-derived synthetic coal product and filtrates and process for preparing the same using an improved hydrothermal carbonization process. The synthetic coal product is similar to natural bituminous coal in terms of percent carbon content and energy equivalency while at the same time containing relatively low levels of sulfur and contaminant heavy metals. Unlike natural coal and other fossil fuels, because the carbon of the biomass is formed through photosynthesis, carbon dioxide formed during combustion is a “carbon neutral” event with little or no “new” carbon dioxide being added to the earth's atmosphere. The algae-derived filtrates contain useful constituents.
摘要:
The present invention concerns low energy requiring methods for processing low cellulosic biomass materials into oil, char and liquid components. One method comprises the steps of subjecting the biomass to hydrothermal carbonization under specified reaction conditions for producing a combined char and oil fraction as well as an aqueous fraction, separating the combined oil and char fraction from the aqueous fraction by filtration; separating the combined oil and char fraction into individual oil and char fractions using an organic solvent for forming an oil depleted char fraction and a liquid oil and solvent solution, and separating the liquid oil and solvent solution into individual oil and solvent fractions by distillation.
摘要:
Algae-derived synthetic coal and filtrates. The invention described herein provides an algae-derived synthetic coal product and filtrates and process for preparing the same using an improved hydrothermal carbonization process. The synthetic coal product is similar to natural bituminous coal in terms of percent carbon content and energy equivalency while at the same time containing relatively low levels of sulfur and contaminant heavy metals. Unlike natural coal and other fossil fuels, because the carbon of the biomass is formed through photosynthesis, carbon dioxide formed during combustion is a “carbon neutral” event with little or no “new” carbon dioxide being added to the earth's atmosphere. The algae-derived filtrates contain useful constituents.