Upgradation of waste cooking oil to biodiesel in the presence of green catalyst derived from date seeds

Abrar Inayat*, Farrukh Jamil, Mohsin Raza, Shahzad Khurram, Chaouki Ghenai, Ala’a H. Al-Muhatseb

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The present work reports a valorization of waste cooking oil (WCO) conversion to biodiesel in the presence of carbon catalyst derived from waste date seeds. The leftover carbon material is treated to remove impurities and modified further by impregnating KOH, and is then used for biodiesel production. The optimization of the complete biodiesel production process was carried out considering the operating parameters reaction temperature (°C), retention time (min), catalyst composition/amount and methanol:WCO ratio. Three types of catalysts were prepared to predict the best composition of green catalysts derived from waste date seeds. Within the limit of set constraints, the maximum biodiesel yield obtained from WCO by a transesterification process was 93%. This high product conversion was achieved at an operating reaction temperature of 65 °C, using synthesized green catalyst type II with 3 wt% KOH on carbon, with a retention time of 90 min and a methanol:WCO ratio of 10:1. The synthesized biodiesel was characterized to evaluate and report its quality in line with international American Society for Testing and Materials (ASTM) and European Norms (EN) standards. The results show that the demonstrated work successfully produced biodiesel with high yield and within set safe standard quality limits.

Original languageEnglish
JournalBiofuels
DOIs
Publication statusAccepted/In press - Jan 1 2019

Keywords

  • Biodiesel
  • green catalyst
  • transesterification
  • waste cooking oil (WCO)
  • waste date seeds

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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