A review of the desulphurization methods used for pyrolysis oil

R. Serefentse, W. Ruwona, G. Danha, E. Muzenda

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


In this article we review the different methods that are used for the desulphurization of pyrolysis oil obtained from used tyres. A lot of research has been done on desulphurization of crude oil and its derivatives, mostly diesel. Since pyrolysis oil has similar properties to those of diesel, the methods employed can be extended and applied for the purification of pyrolysis oil. According to the ultimate analysis, pyrolysis oil contains about 1.6 wt% sulphur which is above environmental limit of 0.10 wt%. This investigation limits the methods of sulphur removal studied to; hydrodesulphurization, desulphurization by oxidation, extraction, adsorption and precipitation. Our findings are that the most expensive of these methods is hydrodesulphurization, mainly because of the high consumption of hydrogen as well as high temperature (320-450oC) and pressure (20-200bar) required for the process.

Original languageEnglish
Pages (from-to)762-768
Number of pages7
JournalProcedia Manufacturing
Publication statusPublished - 2019
Event2nd International Conference on Sustainable Materials Processing and Manufacturing, SMPM 2019 - Sun City, South Africa
Duration: Mar 8 2019Mar 10 2019

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Artificial Intelligence


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