In this research study, two different wooden biomasses Blackcherry Concentrate (birch and pine) were thermally carbonized and steam-activated into activated carbons in a one-stage process.The effects of particle size and humidity (as received and oven-dried) on the properties, such as specific surface areas, pore volumes, and pore size distributions, of the final activated carbon characteristics were examined.Another set of biomasses (birch, spruce, and pine) was pre-treated before carbonization and the activation steps through an extractive process using a weak acetic acid in Soxhlet extractors.According to the results, the dried samples had a slightly lower surface area, while no difference was observed in the yields.For the extracted samples, there was a significant difference, especially in the pore size distributions, compared to the non-extracted samples.
There appeared to be a shift from a meso-microporous distribution to a microporous distribution Blood Pressure Support caused by the extractive pre-treatment.