HOT TOPIC HOUR – JULY 17, 2008 – 10:00 a.m.
Folke Friesen – Evonik Energy Services
Name Folke Friesen
Present
Position
Project Manager
Education
· University of Essen B.Sc. Mechanical & Electrical Engineering
·
University of Essen P.E. (Dipl.–Ing.) Energy-, Environment- &
Process Technologies
Positions Held
· Project Manager, Evonik Energy Services LLC 2007 – 2008
· Managing Director, German-Thai Engineering & Consulting Co., Ltd. 2004 – 2007
· Managing Director, Association of Independent Engineers GmbH 1999 – 2005
· Project Manager, Lurgi Lentjes Bischoff GmbH 1997 – 1999
· Project Manager, STEAG AG 1993 – 1997
· Design Engineer, CALDYN Apparatebau GmbH, Dr. Schäfer GmbH 1991 – 1993
· Maintenance Engineer, M.K. Juchheim GmbH 1989 – 1991
General Experience
Mr. Friesen has been in the environmental field since 1991. He has focused on project management, designing and planning of air pollution control systems (SCR, ESPs and in particular FGDs and WWT for FGD) for fossil-fuel, biogas, and biomass powered plants.
He has conducted feasibility studies, economic and ecologic studies; cost analysis and evaluations; technical comparisons and bid evaluation of environmental protection systems and equipment; and overseen technical and commercial negotiations as well as designing and investigation, commissioning, trouble-shooting, and supervising of performance tests.
Mr. Friesen has world-wide experience having worked at facilities in The Netherlands, Slovenia, Czech Republic, Hungary, Taiwan, P.R. China, Lithuania, Latvia, Ukraine, Poland, Thailand, Turkey, USA, and Germany.
Key Projects:
During his years as an independent consultant, Mr. Friesen was responsible for FGD site supervision, commissioning, and site management as well as process design and bid preparation for major firms in Europe and Asia including STEAG, Alstom, Paul Wurth and PTT.
While at STEAG AG and Lurgi Lentjes Bischoff, Mr. Friesen was responsible for the design and project management of several FGD projects and retrofits, as well as projects involving electrostatic precipitators and SCRs.
Mr. Friesen has also provided consulting services for balance of plant equipment including: quench cooling systems, demisters, dust collection systems, spray dryers, drum dryers, and various burner types.
James K. McGillicuddy - KMPT
Short Biography: Jim has been active in the field of solid/liquid separations since 1974, and since 1982 with KMPT. He is a 1977 graduate of Northeastern University in Boston, MA with a BSME, and is a member of AIChE and ASME. Jim is the contributing editor of the latest edition of Perry’s Chemical Engineers’ Handbook, Section 18 – Liquid-Solid Operations and Equipment, Centrifuges.
Abstract: As relating to dewatering options for wallboard grade gypsum from wet limestone flue gas desulfurization, a common perception is that Horizontal Vacuum Belt Filters are always the preferred technology in terms of lowest capital outlay and simplicity of operation. However, Vertical Centrifuges should also be considered. They are rugged, reliable machines with a track record proven over 25 years and more than 300 FGD installations in Europe and the US. For smaller power plant sizes, Vertical Centrifuges can be the lower capital cost option. Regardless of plant size, Vertical Centrifuges require only 1/3 the building space compared to filters, and offer substantial operational benefits such as substantially lower residual cake moisture (<6% versus 9-11%) for lower drying costs, much lower power consumption (2-3 kWh/ton versus 8-15 kWh/ton), lower maintenance costs and assurance of meeting specified gypsum purity and cake moisture.
Bob Boller – Sefar Filtration, Inc.
Bob Boller has been an engineer with Sefar Filtration Inc. for over 21 years.
His current position is Market Manager for the Environmental and Chemical
industries in the United States and Canada.
For over 175 years Sefar has been a leading producer of fabric and filtration
products used in a host of industrial applications. Double Layer Weave (DLW)
filter fabrics have proven to be an excellent, cost effective solution for
horizontal belt vacuum filter (HBVF) applications used for FGD gypsum
dewatering. Sefar CLICKSEALTM filter press cloths ease installation
and help eliminate down time for gypsum dewatering where filter presses are in
use. Both of these products will be introduced and discussed in our
presentation.
Michael Meadows – Black & Veatch
Bio
Michael Meadows, PE, is a member of the Black and Veatch’s Energy Division’s Air
Quality Control Group and has over 30 years of experience with power plant air
quality control equipment. He has been involved in the design, specification,
and modification of numerous FGD systems during his career. These have included
FGD systems using spray dryers, conventional spray towers, and the Chiyoda
CT-121 design. He has extensive experience with both the process issues and
mechanical design considerations of these systems. Throughout his career, Mr.
Meadows has worked on materials of construction issues associated with FGD
systems and their supporting equipment.
Abstract
Production of a commercial-grade gypsum imposes requirements on limestone
reagent selection, FGD equipment, byproduct dewatering equipment, material
storage and handling systems, particulate emission control systems, and plant
operating and maintenance procedures. In addition, it presupposes reaching a
long-term contractual agreement with one or more gypsum end-users and
establishing procedures to be followed during the inevitable production of
“off-spec” material and short-term disruptions in gypsum transportation. These
factors will be discussed and with examples based on the experiences of existing
facilities currently producing commercial-grade gypsum.