SCI和EI收录∣中国化工学会会刊

›› 2016, Vol. 24 ›› Issue (8): 1080-1086.DOI: 10.1016/j.cjche.2016.01.009

• Energy, Resources and Environmental Technology • 上一篇    下一篇

Biodiesel production from green seaweed Ulva fasciata catalyzed by novel waste catalysts from Pakistan Steel Industry

Abdul Majeed Khan, Noureen Fatima, Muhammad Shoukat Hussain, Kousar Yasmeen   

  1. Research Laboratory of Bioenergy(RLB), Department of Chemistry, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, University Road, Karachi-75300, Pakistan
  • 收稿日期:2015-09-28 修回日期:2015-12-13 出版日期:2016-08-28 发布日期:2016-09-21
  • 通讯作者: Abdul Majeed Khan

Biodiesel production from green seaweed Ulva fasciata catalyzed by novel waste catalysts from Pakistan Steel Industry

Abdul Majeed Khan, Noureen Fatima, Muhammad Shoukat Hussain, Kousar Yasmeen   

  1. Research Laboratory of Bioenergy(RLB), Department of Chemistry, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, University Road, Karachi-75300, Pakistan
  • Received:2015-09-28 Revised:2015-12-13 Online:2016-08-28 Published:2016-09-21

摘要: This research article is based on the biodiesel synthesis from the marine green macroalga Ulva fasciata, collected from the coast of Karachi, Pakistan using new and the most potential waste catalysts from Pakistan Steel Industry. The oil was extracted with n-hexane then it was analyzed by GC, TLC and by the examination of fuel properties. The metal analysis of catalysts was carried out by chemical tests and flame atomic absorption spectroscopy (FAAS). The thermal treatment of catalysts at 1500-1700℃ during various processes in steel manufacturing industry converted the metals to metal oxides. The presence of CaO, MgO and ZnO in these catalysts made them highly reactive for biodiesel synthesis. The basicity of waste industrial catalysts was calculated to know their basic strength. The transesterification of U. fasciata oil was performed by fast stirring using 9:1 molar ratio of methanol/oil in the presence of seven different waste industrial catalysts for 6 h at 80-100℃. The solid catalysts were easily separated from product for re-use. In addition, the rate of reaction in the presence of these catalysts was found to be quite feasible. The waste brown dust from the steel converter gave the highest yield (88%) of biodiesel. The production of biodiesel was confirmed by TLC examination and fuel properties in comparison with the ASTM standards.

关键词: Ulva fasciata, Waste catalysts, Thermal treatment, Metal oxides and fuel properties

Abstract: This research article is based on the biodiesel synthesis from the marine green macroalga Ulva fasciata, collected from the coast of Karachi, Pakistan using new and the most potential waste catalysts from Pakistan Steel Industry. The oil was extracted with n-hexane then it was analyzed by GC, TLC and by the examination of fuel properties. The metal analysis of catalysts was carried out by chemical tests and flame atomic absorption spectroscopy (FAAS). The thermal treatment of catalysts at 1500-1700℃ during various processes in steel manufacturing industry converted the metals to metal oxides. The presence of CaO, MgO and ZnO in these catalysts made them highly reactive for biodiesel synthesis. The basicity of waste industrial catalysts was calculated to know their basic strength. The transesterification of U. fasciata oil was performed by fast stirring using 9:1 molar ratio of methanol/oil in the presence of seven different waste industrial catalysts for 6 h at 80-100℃. The solid catalysts were easily separated from product for re-use. In addition, the rate of reaction in the presence of these catalysts was found to be quite feasible. The waste brown dust from the steel converter gave the highest yield (88%) of biodiesel. The production of biodiesel was confirmed by TLC examination and fuel properties in comparison with the ASTM standards.

Key words: Ulva fasciata, Waste catalysts, Thermal treatment, Metal oxides and fuel properties