Case study

Case study

Hygienic Design and Cleaning In Place Consultancy

Briggs of Burton have supported a number of Biofuel production facilities around the world, providing consultancy on Hygienic Plant Design and Clean in Place. This has principally arisen due these production facilities not meeting their nameplate capacity, often due to Contractos from Oil and Gas developing these facilities and not appreciating good Hygienic Plant Design and CIP.

Briggs of Burton reviewed and recommend suitable improvements for existing Cleaning-in-Place (CIP) systems. The target during these consultations if for the plant is to achieve 100% of the original design capacity. Our hygienic process engineering expertise gained from decades working in the brewing, distilling, food, and pharmaceutical industries allows us to support clients with these challenges..


Hygienic Design and CIP Considerations

  • CIP is used on site to remove fermentation residues, fouling and bacterial contamination. The original plant design was based on infrequent CIP. In practice more frequent CIP is needed to maintain hygiene/performance.
  • Often key issues to resolve around the CIP systems are CO2 degradation of caustic, CIP tank size and system limitations, solids in plate heat exchangers, temperature drops of CIP fluids, CIP return pump priming and return filter issues, foaming of CIP tank and the general process pipework design.

Typical Engineering Services

Undertake a site visit to obtain a greater understanding of the CIP issues and support in the following activities:
  • Evaluate existing CIP routes and utilisation.
  • Establish improvements to existing CIP system and agree scope of modifications.
  • Establish new cleaning routes and regimes required.
  • Evaluate acid cleaning.
  • Check necessary CIP volumes based upon current and new routines.
  • Develop plant utilisation diagrams (Briggs Capacity Planning) that reflect the required modified CIP requirements to de-bottleneck it from the process.
  • Prepare a list of CIP circuits and associated timings.
  • Design a series of modifications to the CIP system to achieve the above.
  • Prepare PFD’s and modify existing P&ID’s reflecting the modifications.
  • Prepare indicative layouts and sizing for new equipment.
  • Prepare necessary process calculations.
  • Review pipework with a view to minimising dead legs where possible.
  • Prepare a series of process descriptions for the modified CIP processes.
  • Establish roles and responsibilities for work going forward.
  • Prepare equipment specifications and schedules.
  • Prepare budget costings.
  • Prepare Project Programme.
  • Project execution plan.
  • Consider legislative issues for project implementation.