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This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, m mmendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Corporation (OCF) for supporting the pilot-scale evaluation of the catalytic fabric filter concept. Also, the EERC would like to thank Raytheon Engineers & Constructors (RE&C) for their efforts in the completion of Task 4, Conceptual Design and Economic Evaluation, and their overall project technical support. The EERC Project Manager would like to specifically thank Ms. Felixa Eskey (DOE-PETC), Mr. Jack Pirkey (Con Edison), Dr. Aubrey Messing (ESEERCO), Ms. Debra DiMeo (ESEERCO), Dr. Patrick Aubourg (OCF), Ms. Marie Kalinowski (OCF), and Mr. Russ Potter (OCF) for their support and input concerning the catalytic fabric filter evaluation effort. Also, the efforts of Mr. Tony Taladay (RE&C) and Mr. Cameron E. Martin (RE&C) are gratefully acknowledged for their completion of Task 4 and overall project support. The EERC Project Manager, Mr. Greg Weber, would like to thank Mr. Grant Dunham, Mr. Dennis Laudal, Ms. Sumitra Ness, and Mr. Grant Schelkoph for their efforts in completing the various project tasks and contributing to the preparation of this final project report. The authors also gratefully acknowledge the efforts of a large number of EERC support staff who were instrumental in the completion of the experimental work as well as in the preparation of this final project report. Special recognition is due Mr. LeRoy Sbndrol for making the University of North Dakota (UND) steam plant available in support of Subtask 3.4-Fabric Durability Testing/Pulse-Jet System and Mr. Ray Tozer Jr. and the UND steam plant personnel for providing assistance with the day-today monitoring of the baghouse slipstream system operation. TABLE OF CONTENTS LIST OF FIGURES iii

A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the U.S. Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a manner that has not been done before. The AHPC concept consists of a combination of fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emission with conventional ESPs, and it solves the problem of reentrainment and collection of dust in conventional baghouses. The AHPC is currently being tested at the 2.7-MW scale at the Big Stone power station.

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