Application of Lummus antisolvent deashing technology to a solvent refined coal solution. Final report
Lummus antisolvent deashing technology is the preferred technically and economically viable alternative to rotary pressure precoat filtration when applied to the ash removal step of the Solvent Refined Coal (SRC) process. This is especially so when operability of the two systems are considered. Total deashing costs for antisolvent deashing are expected to be at least $1.37/Bbl SRC less than filtration deashing. Capital requirements associated with antisolvent deashing are significantly lower than those associated with filtration deashing. The relative economic incentives associated with antisolvent deashing would increase significantly if the operating reliability or on-stream time of the filtration deashing alternative were reduced from an optimistic base case value of 95% to 60 to 80%. In addition to the aforementioned relative economic advantages favoring antisolvent deashing, the recovered SRC product via antisolvent deashing can consistently provide a residual ash content of less than 0.1 wt.%.
- Research Organization:
- Lummus Co., Bloomfield, NJ (USA)
- OSTI ID:
- 5232202
- Report Number(s):
- EPRI-AF-234
- Country of Publication:
- United States
- Language:
- English
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