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Projects: Projects for Investigator
Reference Number DTI/CC/109
Title Novel Hot Gas Cleaning/Heat Recovery System
Status Completed
Energy Categories Other Power and Storage Technologies(Electric power conversion) 20%;
Fossil Fuels: Oil Gas and Coal(Coal, Coal combustion) 80%;
Research Types Applied Research and Development 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Mr JE (John ) Oakey
No email address given
School of Applied Sciences
Cranfield University
Award Type 3
Funding Source DTI
Start Date 01 May 2000
End Date 01 April 2003
Duration 35 months
Total Grant Value £101,215
Industrial Sectors
Region East of England
Investigators Principal Investigator Mr JE (John ) Oakey , School of Applied Sciences, Cranfield University (99.999%)
  Other Investigator Project Contact , Babcock International Group plc (0.001%)
Web Site

The overall aim of the project was to develop a novel integrated fuel gas cooler and sulphur and halide removal process for coal gasification plants. Specific objectives were:

  • To prove the concept of using a twin-bed reactor system is suited to this application.
  • To assess the performance of available sulphur sorbents in the twin-bed system.
  • To assess the effect of scale up on the performance of the system and the downstream effects on filter performance, residuecharacteristics and gas turbine performance.

Abstract This project was targeted at developing a novel integrated raw gas cooler and sulphur/halide removal process for gasification plants. This desulphurisation process is based on a twin fluidised bed system employing direct solids transfer between adjacent reactor vessels, with halide removal being achieved by means of sorbent injection.

Within this project a series of mathematical models were developed for the twin-bed desulphurisation concept. Then a 2-D cold model was designed and manufactured to demonstrate the concepts and the validity of the mathematical models produced.

Following on from this, a twin-bed unit was developed from initial design through construction to operation in the hot gas path of an air blown fluidised bed gasification pilot plant. Initially the unit was used as a 3-D cold model for further testing of the twin-bed concept and producing model validation data (particle and gas transfer rates between the twin-beds).

Publications DTI (2003). Novel Hot Gas Cleaning/Heat Recovery System: Project Summary 303. DTI Cleaner Coal Technology Programme, URN 04/1912, UK (PDF 911 KB)
Final Report Grasa, G., Wellman, R.G., Kilgallon, P., Simms, N.J. and Oakey, J.E. (2004). Novel Hot Gas Cleaning/Heat Recovery System. Report No. COAL R269 DTI/Pub URN 04/1794. DTI, UK. (PDF 1795 KB)
Added to Database 01/01/07