32
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Production and characterization of slow pyrolysis biochar: influence of feedstock type and pyrolysis conditions

      , , ,
      GCB Bioenergy
      Wiley-Blackwell

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references34

          • Record: found
          • Abstract: not found
          • Article: not found

          Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Review of fast pyrolysis of biomass and product upgrading

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Dynamic molecular structure of plant biomass-derived black carbon (biochar).

              Char black carbon (BC), the solid residue of incomplete combustion, is continuously being added to soils and sediments due to natural vegetation fires, anthropogenic pollution, and new strategies for carbon sequestration ("biochar"). Here we present a molecular-level assessment of the physical organization and chemical complexity of biomass-derived chars and, specifically, that of aromatic carbon in char structures. Brunauer-Emmett-Teller (BET)-N(2) surface area (SA), X-ray diffraction (XRD), synchrotron-based near-edge X-ray absorption fine structure (NEXAFS), and Fourier transform infrared (FT-IR) spectroscopy are used to show how two plant materials (wood and grass) undergo analogous but quantitatively different physical-chemical transitions as charring temperature increases from 100 to 700 degrees C. These changes suggest the existence of four distinct categories of char consisting of a unique mixture of chemical phases and physical states: (i) in transition chars, the crystalline character of the precursor materials is preserved; (ii) in amorphous chars, the heat-altered molecules and incipient aromatic polycondensates are randomly mixed; (iii) composite chars consist of poorly ordered graphene stacks embedded in amorphous phases; and (iv) turbostratic chars are dominated by disordered graphitic crystallites. Molecular variations among the different char categories likely translate into differences in their ability to persist in the environment and function as environmental sorbents.
                Bookmark

                Author and article information

                Journal
                GCB Bioenergy
                GCB Bioenergy
                Wiley-Blackwell
                17571693
                March 2013
                March 2013
                : 5
                : 2
                : 104-115
                Article
                10.1111/gcbb.12018
                80ae59e6-e26d-4620-8c74-6a2a202f7932
                © 2013

                http://doi.wiley.com/10.1002/tdm_license_1.1

                History

                Comments

                Comment on this article