Electrostatic Precipitator for Metal and Particulate Emission Control

Abstract This paper reviews the current general understanding of fuel effects on combustion and emissions, fuel processing, and emission control technologies and assesses areas of opportunity in further research in clean diesel systems. The critical basic research areas identified focus on fundamental processes mat would develop a scientific knowledge base for the long-term development of clean diesel technology. The suggested approach, from a basic research perspective, will complement other pragmatic development programs in clean fuels production, application, engine and emission control technologies. Among areas suggested are: studies in developing basic data and modeling of fuel chemistry and emission mechanisms both in cylinder and during after-treatment, interactions of new fuel and engine technologies, gas-to-liquid fuel processing and utilization, and detailed particulate emission characterization and their health effects. The health effect benefits from clean fuels may be more than proportional to the reduction in mass emissions.

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Recent Advances in Diesel Particulate Emission Control

The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines ◽

10.1299/jmsesdm.2017.9.a313 ◽

2017 ◽

Vol 2017.9 (0) ◽

pp. A313

Author(s):

Athanasios G. Konstandopoulos ◽

Georgia Kastrinaki ◽

Chrysa Pagkoura ◽

Souzana Lorentzou

Keyword(s):

Emission Control ◽

Particulate Emission ◽

Diesel Particulate ◽

Recent Advances

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Conversion of an existing electrostatic precipitator casing to Pulse Jet Fabric filter in fossil power plants

DYNA ◽

10.15446/dyna.v83n195.49723 ◽

2016 ◽

Vol 83 (195) ◽

pp. 189-197 ◽

Cited By ~ 2

Author(s):

Francisco Manzano-Agugliaro ◽

Javier Carrillo-Valle

Keyword(s):

Power Generation ◽

Power Plants ◽

Electrostatic Precipitator ◽

Combustion Process ◽

Performance Expectations ◽

Particulate Emission ◽

Fabric Filter ◽

Alternative Means ◽

Emission Limits ◽

Pulse Jet

The combustion process of power generation plants originates particulates. There are different technologies to collecting particulate such as electrostatic precipitators (ESPs) or fabric filters. Currently, these ESPs take 25 or 35 years in service and if the performance expectations of their Plants are positives, improving investments required which can adapt to the new particulate emission limits becoming more stringent. This paper analyzes an alternative means great savings in investment costs; Conversion of the existing ESP casing to a Pulse Jet fabric filter. This study also presents a real case, implementing this conversion with good results in unit of 660 MW power plants of Italy.

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Performance of Hot Gas Clean-Up Devices Tested at the NYU DOE-PFBC Facility

1989 Joint Power Generation Conference: GT Papers ◽

10.1115/89-jpgc/gt-8 ◽

1989 ◽

Author(s):

V. Zakkay ◽

E. A. M. Gbordzoe ◽

K. M. Sellakumar ◽

C. Q. Lu

Keyword(s):

New York ◽

High Pressure ◽

High Temperature ◽

Electrostatic Precipitator ◽

Cross Flow ◽

Combined Cycle ◽

New York University ◽

Particulate Emission ◽

Hot Gas ◽

High Temperature High Pressure

Three hot gas clean up units namely, the Screenless Granular Bed Filter (GBF), Ceramic Cross-flow Filter (CXF) and High Temperature, High Pressure Electrostatic Precipitator (ESP) designed for PFBC combined cycle power applications were tested at the New York University (NYU) DOE-PFBC facility located at Westbury, New York using a 780 mm ID pressurized fluidized bed combustor. The combustor was operated up to 10 atma and 870 °C. With the exception of the ESP whose performance was hampered by persistent electrode bushing failure, the particulate capturing efficiencies of the GBF and the CXF were predominantly in the upper 90 % range. The dust loading leaving the filters was consistently lower than the NSPS particulate emission limit. The results also indicate that the filter exit gas stream may meet the gas turbine particulate tolerance limit. None of the three high temperature, high pressure (HTHP) gas clean up units tested emerges as a favorite for use in cleaning PFBC exhaust stream because, each has mechanical design as well as operational flaws which could be corrected. The Cross-flow filter suffered from filter element cracking or delamination or gasket failure during its short test program. The backpulse cleaning system also needs to be optimized. The GBF is susceptible to media bubbling and granule flow problems through its lower seal leg. The Electrostatic Precipitator tested at NYU failed because its electrode bushings cracked due to overheating and could not hold their designed voltage. Further HTHP filter testing at the sub-pilot plant scale is necessary to optimize filter design and develop effective operational procedures for the hot gas clean up systems that will make them viable for commercial PFBC application.

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