Polymerization of deasphalted vacuum residue mixed with gum rosin for mesophase pitch production

Dijan Supramono, Aegerin Hafiz Sucipto

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

Abstract

Waste from vacuum distillation of crude oil refineries in Indonesia is still not fully utilized. Vacuum residue is potential to be used as a feedstock to produce mesophase pitch by removing its asphaltene content (deasphalting) followed by thermal polymerization of the remaining aromatic compounds performed at low heating rate. Mesophase pitch is regarded as an excellent precursor for making a wide variety of industrial and advanced engineering carbon products such as carbon fibers, needle coke, Li-ion battery anodes. The objective of the present research is to investigate the effect of gum rosin addition to the deasphalted vacuum residue on the extent of the polymerization of aromatic compounds. Gum rosin is a residue of pine trees containing conjugated double bond compounds. It was used to maintain mesophase condition during polymerization to maintain polyaromatic formation. High polyaromatic composition forms anisotropic crystallite and favors high mechanical strength as the mesophase pitch is converted to engineering carbon. The polymerization occurred in a stirred tank reactor at heating rate of 5°C/min, maximum temperature of 350°C, and N2 flowrate of 100 mL/min. The amount of gum rosin mixed with the deasphalted vacuum residue was varied at 0% wt, 5% wt, 10% wt, and 15% wt of deasphalted vacuum residue. The result of analysis on mesophase pitches shows that increasing gum rosin composition from 0 to 10% reduced aromatic composition in mesophase pitch from 23 to 10%, but increased to 67% as the gum rosin content was increased to 15% wt. The largest crystallite size in the mesophase pitch, i.e. 44.5 Angstrom was achieved as the polymerization used 15% wt of gum rosin. All mesophase pitches have interlayer distance in average 4.12 Angstrom, slightly higher than 3.35 Angstrom (interlayer distance of fully ordered crystalline graphite).

Original languageEnglish
Title of host publication10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
Subtitle of host publicationAdvances in Thermofluid Technology in Tropical Urban Development
EditorsArdiyansyah Yatim, Nasruddin, Muhammad Arif Budiyanto, Nyayu Aisyah, Muhamad Idrus Alhamid
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417908
DOIs
Publication statusPublished - 25 Jan 2019
Event10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018 - Kuta, Bali, Indonesia
Duration: 16 Nov 201817 Nov 2018

Publication series

NameAIP Conference Proceedings
Volume2062
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Country/TerritoryIndonesia
CityKuta, Bali
Period16/11/1817/11/18

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