Small footprint dry solids pump for low-cost power from gasification
The dry solids pump coal feed technology (DSP-CFT) has the potential to significantly improve the efficiency of feeding coal, petcoke, and/or biomass into high-pressure gasifiers, thereby enabling higher efficiency of gasification plants, while simultaneously reducing feed system capital, maintenance, and operating costs. Also, the ability to feed low rank coal into high-pressure gasifiers with neither the need to add water to form slurry, nor the use of lock hoppers, is expected to make these coals more commercially competitive.
By replacing the complicated sequencing required by lockhoppers with the continuous and accurate feed rate of the DSP-CFT technology, capital costs of a commercial scale unit are expected to be reduced by 20% compared to conventional systems. This is principally due to the associated reduction in system size and complexity. The dry feed pump has the ability to operate at higher-than-standard pressure, up to 1,000 psi, providing another opportunity to make efficiency gains in the future.
Ongoing testing by GTI supported by the U.S. Department of Energy National Energy Technology Laboratory (DOE/NETL) will define the commercial target for pump size, assess adequate safety factors, validate pump models, and provide data for a final benefits analysis.
Learn more about Dry Solids Pump & Feeding Systems. (2.7MB pdf)