Case Studies

Second Generation Biofuel Pilot Facility



TMO Renewables (Rebio)




Pilot plant for 2nd generation biofuel production

Second Generation Biofuel Pilot Facility

Briggs of Burton worked with TMO Renewables to design and build their Process Development Unit (PDU) to scale-up from current laboratory operations and also optimise a bioethanol process for the commercialisation of the technology. The PDU was designed to be capable of accepting a wide variety of raw material feed stocks to generate ethanol from fermentable sugars, and also included a smaller scale pilot “Scale-through” plant.

Project Scope

  • Raw material handling including storage, weighing and batching of raw material
  • Pre-treatment to adjust moisture content, pH and high temperature thermal hydrolysis of raw material plus Flash Vessel
  • 2 Stage high solids loading enzyme hydrolysis of pre-treated material to degrade biomass and release fermentable sugars with external heat exchangers – 1 x 12,000 L & 2 x 6,000 L
  • 3 Stage bacterial culture growth system
  • Batch & Continuous Fermentation of enzyme hydrolysed material to convert sugars to Bioethanol with external heat exchangers – 2 x 6,000 L & 1 x 1,000 L.
  • Product handling including receipt, treatment and storage / disposal of fermented product and other waste materials – 2 x 27,500 L.
  • 1/10 size Scale-through plant comprising; Reactor, Flash Vessel, 160 L2 x 60 L enzyme hydrolysis vessel and fermentation vessels.
  • Scrubber system
  • 3 tank recovery CIP system, plus SIP facilities.
  • Dedicated enzyme & chemical dosing systems
  • Utilities generation and distribution required to operate the process areas detailed above; steam, electricity, water, chilled water, compressed air.

Engineering Services

  • Innovative process design of novel processes including Steam Explosion Thermal Pre-treatment, High solids hydrolysis and fermentation.
  • Process Flow Diagrams (PFDs)
  • User Requirement Specification (URS)
  • Capacity planning including utility and effluent loading
  • Overall Plant configuration and equipment sizing
  • Piping and instrumentation diagram (P&IDs)
  • 3D Model and 2D Layouts including major equipment and piping
  • Electrical design and implementation
  • Functional Design Specification (FDS)
  • Automation Control system and software writing
  • HAZOP review