Press fluid pre-treatment optimisation of the integrated generation of solid fuel and biogas from biomass (IFBB) process approach.

John Corton, Trisha Toop, Jonathan Walker, Iain Simon Donnison, Mariecia Dawn Fraser

Research output: Contribution to journalArticlepeer-review

6 Citations (SciVal)
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Abstract

The integrated generation of solid fuel and biogas from biomass (IFBB) system is an innovative approach to maximising energy conversion from low input high diversity (LIHD) biomass. In this system water pre-treated and ensiled LIHD biomass is pressed. The press fluid is anaerobically digested to produce methane that is used to power the process. The fibrous fraction is densified and then sold as a combustion fuel. Two process options designed to concentrate the press fluid were assessed to ascertain their influence on productivity in an IFBB like system: sedimentation and the omission of pre-treatment water. By concentrating press fluid and not adding water during processing, energy production from methane was increased by 75% per unit time and solid fuel productivity increased by 80% per unit of fluid produced. The additional energy requirements for pressing more biomass in order to generate equal volumes of feedstock were accounted for in these calculations.
Original languageEnglish
Pages (from-to)537-542
Number of pages6
JournalBioresource Technology
Volume169
Early online date17 Jul 2014
DOIs
Publication statusPublished - 01 Oct 2014

Keywords

  • anaerobic digestion
  • bioenergy
  • screww press
  • process optimization
  • low input high density

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