Activated carbon production by co-pyrolysis of vacuum residue and gum rosin

Anisa Maulida, Dijan Supramono

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Vacuum residue (VR) is potential to be used as a feedstock for mesophase pitch (MP) production because of its low cost and aromatic content. MP, which is a liquid-crystalline state of VR, may be used as precursor of activated carbon (AC). Gum rosin containing conjugated double bonds may be added to and can improve crystallinity and pore surface area in further processes of carbonisation and activation. In the present study, co-pyrolysis was carried out in a stirred tank reactor at 450°C with holding time 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 by increasing gum rosin added. Subsequently, this precursor underwent carbonization at 700°C with holding time for 120 minutes under N2 flow and activation. KOH solution was used as activating agent to the precursor of activated carbon. Activated carbon gave higher surface area and lower C/H atom ratio with increasing gum rosin added during co-pyrolysis. With gum rosin addition, surface areas of ACs were 120.81, 194.56, 312.36, dan 462.19 m2/g, respectively, and crystallite sizes increased from 8 to 22 Å.

Original languageEnglish
Title of host publicationBroad Exposure to Science and Technology
EditorsEndarto Y. Wardhono
PublisherTrans Tech Publications Ltd
Number of pages7
ISBN (Print)9783035715736
Publication statusPublished - 1 Jan 2020
EventBroad Exposure to Science and Technology Conference, BEST 2019 - Sanur, Indonesia
Duration: 7 Aug 20198 Aug 2019

Publication series

NameMaterials Science Forum
Volume988 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


ConferenceBroad Exposure to Science and Technology Conference, BEST 2019


  • Activated carbon
  • Co-pyrolysis
  • Gum rosin
  • Production
  • Vacuum residue


Dive into the research topics of 'Activated carbon production by co-pyrolysis of vacuum residue and gum rosin'. Together they form a unique fingerprint.

Cite this