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Activated Carbon Production by Co-Pyrolysis of Vacuum Residue and Gum Rosin
Anisa Maulida, Dijan Supramono

University of Indonesia


Mesophase pitch, which can be produced from vacuum residue (VR), may be used as precursor in activated carbon (AC) production process. VR still lacks of utilization and ends up as waste. VR has the potential to be used as a feedstock because of its low cost and contains aromatics and aliphatic subtituents. Gum rosin may be added in the production of mesophase pitch because of its conjugated double bond carbon content. In the present study, co-pyrolysis occurs in a stirred tank reactor at temperature about 450℃ with heating rate of 5oC/minute and hold for 120 minutes. The amount of gum rosin mixed with VR was varied 0, 5, 10 and 15% wt of VR. The precursor products had C/H mole ratio of about 2.43, 2.37, 2.28, and 2.01. This precursor underwent carbonization at at 700℃ with heating rate 5oC/minute and holding time for 120 minutes at 700oC under N2 flow. KOH was used as activating agent to precursor of activated carbon. Activated carbon gave surface area that increase as addition of gum rosin and rasio C/H deacreasing. Activated carbon AC0, AC5, AC10, dan AC15 have surface areas of 120.81, 194.56, 312.36, dan 462.19 m2/g and high crystalline structure.

Keywords: activated carbon, gum rosin, carbonization, activation, vacuum residue.

Topic: Chemical Engineering


Conference: Broad Exposure on Science and Technology (BEST 2019)

Plain Format | Corresponding Author (Anisa Maulida)

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