Technology and Engineering
  • ISSN: 2333-2581
  • Modern Environmental Science and Engineering

Parametric Study on Desulfurization and De-ashing of Lakhra Pakistan Coal by Froth Floatation Column Method

Ikram Ullah1, 3, Asif Hayat2, Faisal Mushtaq3, and Baseer Ullah4
1. National Engineering Research Center of Chemical Engineering Fertilizer Catalyst, College of Chemical Engineering, Fuzhou
University, China
2. State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, China
3. Faculty of Engineering and Architecture, Department of Chemical Engineering, Balochistan University of Information Technology,
Engineering and Management Sciences (BUITEMS), Quetta, Balochistan, Pakistan

4. College of Mechanical Engineering and Automation, Fuzhou University, China

  Abstract: Herein, we report the desulfurization and de-ashing of lignite coal of Lakhra (Sindh, Pakistan) by froth flotation column method. The effects of various parameters during froth flotation such as a solution, feed composition, separation time, and airflow rate were determined. Poly acetal alcohol was used as wetting reagent and crecylic acid as frothing agent. The results indicated that of coal sample solution, time of separation, velocity of air and feed composition have significant influence on the desulfurization, de-ashing and efficiency of pyritic sulfur. The sulfur and ash components were reduced by 66% and 53% by controlling afford mentioned parameters.

  Key words: desulfurization, de-ashing, Froth flotation, pyrite sulfur, wetting agent and frothing agent

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