CERAMIC HOT-GAS FILTER TECHNOLOGY

High-temperature filters will be required in emerging coal-fueled turbine technologies to prevent abrasive coal ash particles created during combustion or gasification from entering the power turbines and destroying vanes and blades.

DOE Fossil Energy Hot-Gas Filter Technology
Developed at ORNL, Improved and Commercialized by 3M

Sales in the U.S., Europe, and Asia

Demonstrated in:

Pressurized fluidized bed
combustion
Integrated coal gasification
combined cycles

R&D 100 Award
FLC Award

 

Type 203 Ceramic Composite Filters XN-529

Typical Performance
Data based on filtering fly ash from coal combustion with a mass median diameter of 4 microns
Average Outlet
Particle Concentration		 2.6ppm (@2000ppm inlet)
Collection Efficiency
(After Seasoning)		 99.9%
Initial Pressure Drop
(Clean Filter):
7ft./min. (3.6cm/sec.)		 0.8 inches water
(2mbar)
Operating Pressure Drop
(After Seasoning):
7ft./min. (3.6cm/sec.)		 20-50 inches water
(50-125mbar)
Operating Temperature: 1652F (900C)
Installation
Contact 3M for installation and gasket recommendations

 

The 3M Ceramic Composite Filter is designed for advanced coal-fired power generation systems, such as pressurized fluidized bed combustion (PFBC), and integrated gasification combined cycle (IGCC)

Composition

A combination of continuous and chopped ceramic fibers that are rigidized with a silicon carbide matrix

 

Features

  • High Temperature Capability
  • Resistant to Thermal Shock
  • Lightweight
  • Resistant to Catistrophic Failure
Applications

Potential Applications Include:

  • Pressurized Fluidized Bed Combustion (PFBC)
  • Integrated Gasification Combined Cycle (IGCC)
  • Industrial Waste Incinerators
  • Metal Smelters
  • Advanced Diesel Engines
Funding for this research was provided by DOE's Office of Fossil Energy
Advanced Research and Technology Development Materials Program

| Composites | Research Areas | Surface Processing and Mechanics |