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Variable Speed Drive Coke Oven Gas Compressors

Coke oven gas is generated at low pressures and is pressurized for transport in the internal gas grid. However, coke oven gas flows vary over time due to the coking reactions. Installation of variable speed drives on coke oven compressors can therefore reduce compression energy.

Development Status Products
Commercial

Variable Speed Drive Coke Oven Gas CompressorsCosts & Benefits

Parent Process:
Energy Savings Potential
CO2 Emission Reduction Potential

N/A
Costs
Parent Process: Coke Making
Energy Savings Potential

Variable Speed Drive System on a compressor at a coke plant at Corus in The Netherlands saved 6 to 8 MJ/t-coke.
CO2 Emission Reduction Potential

Emissions can be reduced by 0.12 kg CO2/t-coke.
Costs

Retrofitting cost is 0.47 $/tonne coke. The payback time was estimated as 21 years (US EPA, 16)

Variable Speed Drive Coke Oven Gas Compressors Publications

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry

Date: 

Oct
2010

Source: 

United States Environmental Protection Agency

Format: 

PDF

Type: 

Publications

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.

http://www.energystar.gov/ia/business/industry/Iron_Steel_Guide.pdf?25eb-abc5

Page Number: 

79

Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Iron and Steel Industry

Date: 

Oct
2010

Source: 

United States Environmental Protection Agency

Format: 

PDF

Type: 

Publications
http://www.epa.gov/nsr/ghgdocs/ironsteel.pdf

Page Number: 

9, 16

Variable Speed PM Compressor is "a Huge Leap"

Date: 

May
2012

Format: 

Website

Type: 

Publications

April 2002

http://www.drives.co.uk/fullstory.asp?id=1256