Novel Hot Gas Cleaning/Heat Recovery System
Fossil Fuels: Oil Gas and Coal(Coal, Coal combustion)
School of Applied Sciences
Cranfield University
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, residue >characteristics and gas turbine performance.
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 manufactur >ed 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).
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