Siouxland Site Air Overview

Regional Actual Emissions Comparison

• The HEC's combined actual emissions will be significantly lower than existing regional power plants

Includes NO_x, SO₂, PM-10 and VOCs

 

 

Normalized Refinery & IGCC Power Plant Emissions

• The refinery normalized emissions will be 80% lower than the average operating refinery in California

• The IGCC power plant normalized emissions will be approximately 1/30th of the emissions of George Neal power plant in Port Neal, Iowa and 1/60th of the existing Big Stone Power Plant near Milbank, South Dakota

Includes NO_x, SO₂, PM-10 and VOCs.  Emissions are normalized according to capacity. Refinery emissions are normalized to a crude distillation capacity of 400,000 barrels per day and power plant emissions are normalized to a heat input capacity of 9,625 million Btu per hour. Normalization corrects for differences due to size and better reflects performance of air emissions control technologies.

 

Air Permit

• Hyperion filed its PSD Air Permit Application on December 20th, 2007 with the SD DENR.   To view the application online, please click here (requires Adobe Acrobat Reader) or visit the files section to browse all available online documents related to the HEC. 

• On September 11th, 2008 the SD DENR announced it is accepting public comments on its draft Prevention of Significant Deterioration preconstruction air quality permit. To view the draft permit online, please click here.

• On December 15th, 2008 the DENR completed its review and responsed to nearly 3,000 people and organizations who submitted comments on the draft PSD air quality permit for the proposed Hyperion Energy Center.  Where appropriate, the DENR incorporated suggested changes into the draft air quality permit. To view the DENR's response to comments on the air permit, please click here. To view the revised air quality permit, click here.

CO₂

• The IGCC is designed to be Carbon Capture Ready for over 90% of the carbon dioxide from gasification.

• Canadian crude will be refined somewhere in the world and it should be processed at  facilities that will meet stringent air emissions and water quality standards. North American oil should not be refined in countries with low environmental standards and lack of CO₂ foresight.

• Hyperion Refining, LLC requested RTP Environmental Associates, Inc. prepare a Best Available Control Technology analysis of carbon dioxide emissions from the Hyperion Energy Center in Union County, South Dakota. To view the results of that analysis, click here.

Health Risk Assessment

• Hyperion has filed a Screening-Level Health Risk Assessment as of April 23rd, 2008 with the SD DENR.   To view the report online, please click here.