Modification and operation of the EPRI large-scale hot gas filter during the Grimethorpe Topping Cycle Experiment. Volume 2, Final report
- British Coal Corp., Cheltenham (United Kingdom). Coal Research Establishment
A reliable high temperature, high pressure (HTHP) gas clean up system is a critical component for many coal-fired-combined cycle power generation systems. A device employing ceramic filter elements was constructed and operated at the Grimethorpe between 1986 and 1987, funded by EPRI. This report describes a subsequent programme of modification and operation-between 1990 and 1992 as part of the Grimethorpe Topping Cycle Project, when the PFB combustor at Grimethorpe was run in conjunction with a small gas turbine. The main requirement of the filter during this programme was to provide reliably about 7kg/s of clean PFBC flue gases containing less than 30 ppmw particulates to the gas turbine. However the opportunity was taken to undertake a further filter test programme with the following objectives: Establishing the durability of the filter elements; establishing the filter pressure drop, permeance and dust emissions as a function of time; and determining the characteristics of the pulse cleaning system. The filter was on line for 1508 hours. A variety of problems were experienced including pulse manifold failures and difficulties with element cleaning. Changes were made to the element hold down system and the final design, combined with a change of feed sorbent from limestone to mite, resulted in more successful cleaning. Dust contaminations at the filter outlet were typically 0.3 ppmw during extended runs, with particles in the uncontaminated filter dust below 2.7{mu}m. A comprehensive measurement programme enabled the objectives of the programme to be achieved. Materials, aspects and durability of the elements are covered in separate report.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); British Coal Corp., Cheltenham (United Kingdom). Coal Research Establishment
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 10109001
- Report Number(s):
- EPRI-TR-102404-V2; ON: UN94004477
- Resource Relation:
- Other Information: PBD: Nov 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program
Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program. Volume 2, Preliminary report on the filter performance: Final report