MADRAS AGRICULTURAL JOURNAL

Experimental Study on Dual Air Supply Downdraft Gasifier for an Improved Producer Gas Quality

Abstract

                                Tar reduction is a major technical challenge which needs to be addressed in biomass gasifier systems. This study presents an experimental evaluation of dual air supply downdraft gasifier with respect to better producer gas quality in terms of reduced tar and particulate content. Experiments were conducted by varying the secondary air flow from 15 to 30 % at constant equivalence ratio of 0.4. The secondary air flow was optimized at 25 % with tar content of 241 mg Nm-3 and lower calorific value of 4.51 MJ Nm-3. The dual air supply in the gasifier allowed a reduction of 79 % tar content as a result of partial oxidation of volatile compounds in the pyrolysis zone.

Key words : Downdraft gasifier, Dual air supply, Producer gas, Tar, Particulate

Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.

Full Text
  • Full Text
  • Full Text
  • Full Text
  • Full Text
  • Full Text

  • Madras Agricultural Journal Vol.106(10-12) December, 2019 issue.

    Original Research Articles related to

    • Agriculture
    • Forestry
    • Agricultural Engineering
    • Sericulture
    • Agricultural Economics
    • Food Processing
    • Environmental Science
    • Agricultural Extension
    • Agri-Business Management
    • Biotechnology
    • Home Science
    • Agricultural Bioinformatics
    • Horticulture
    • Home Science

    Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.

    Full Text
  • Full Text
  • Full Text
  • Full Text
  • Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.

    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text
    Full Text

    Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.