Thermal processing of biomass into high-calorific solid composite fuel

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21 Citations (Scopus)

Abstract

Since the reserves of fossil fuels are gradually exhausting, the biomass inclusion in the energy balance is becoming an urgent issue and a major field for researchers. However, such biomass characteristics as high moisture content, low calorific value, friability, stickiness and others lead to the high operating costs for burning. Thus, biomass pre-processing is required to improve its properties. This work shows the results obtained through the development and substantiation of the parameters of the biomass processing technology in a high-calorie solid fuel for boiler units. Chips from a mixture of Siberian wood (birch, pine, and aspen) and peat of Kandinsky deposit were used as biomass sources. Thermal processing (low-temperature pyrolysis) allows increasing the calorific value of the updated raw materials and obtaining the basis for the binder. Liquid pyrolysis products together with dextrin were used for molding solid composite fuel in the form of pellets and briquettes. These solid fuels had lower heating values of 29.1 MJ/kg (wood chips) and 20.9 MJ/kg (peat), which is superior to most types of fuel briquettes and pellets and comparable to the highest-quality fossil fuels.

Original languageEnglish
Pages (from-to)94-102
Number of pages9
JournalJournal of Analytical and Applied Pyrolysis
Volume124
DOIs
Publication statusPublished - 1 Mar 2017

Keywords

  • Biomass
  • Briquettes
  • High-calorific fuels
  • Low-temperature pyrolysis
  • Pellets

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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