Local citizens concerned about the air they breathe and trade unionists eager to work on a major construction project were among those who expressed their opinions Sept. 22 about Southeast Idaho Energy’s planned coal-gasified nitrogen fertilizer complex near American Falls, west of Pocatello. They spoke at Pocatello City Hall during a well-attended Idaho Department of Environmental Quality (IDEQ) informational hearing about SIE’s “Power County Advanced Energy Center.”
Southeast Idaho Energy (SIE), a subsidiary of Refined Energy Holdings of New York, plans to spend $1 billion on the first phase of the project that will produce up to 500 st/d of anhydrous ammonia, up to 1,800 st/d of granular urea, up to 1,600 st/d of a urea ammonium nitrate solution, and up to 500 st/d of sulfuric acid. It has decided against producing diesel fuel or generating electricity at the site as originally planned.
SIE applied for an air quality permit 18 months ago and revised it in April. Ground is expected to be broken during the second quarter of 2009, with permitting completed by this fourth quarter. The first phase is scheduled to be completed by June 2012.
The U.S. Environmental Protection Agency has designated Power County an attainment area for nitrogen oxides, carbon monoxide, and particulate matter smaller than 10 micrometers in diameter (PM10), sulfur dioxide, ozone, and lead. SIE says the project will not cause nor contribute to a violation of national or state ambient air quality standards. SIE is investigating ways to use carbon dioxide, such as piping it 120 miles to Wyoming for enhanced oil recovery, but initially would emit it.
A woman in the audience opposed to the plant’s construction commented: “We’re more and more aware that carbon dioxide is our death sentence.” She criticized the low amount of fines imposed for violations. “This whole thing to me is ridiculous from start to finish.” A union representative countered her comments by saying: “I think this company has gone out of its way to keep the emissions at their lowest. … These people are being put on trial. All they are doing is giving us facts.”
Cheryl Robinson, IDEQ staff engineer, said mercury emissions would be so low that they would fall below the need for screening, but the IDEQ would conduct inspections to ensure SIE kept records on all its various discharges.
“I don’t have a dog in this hunt. As an engineer, I’ve got to make sure we’ve got the numbers,” she said, mentioning the state has serious staffing issues with water quality engineers in Pocatello, but does not lack air quality specialists.
Robinson said plans for the American Falls coal gasification plant are similar to processes for one in Coffeyville, Kansas. She said synthetic gas flares at startups will give the IDEQ a good idea on what is emitted from the SIE plant. IDEQ is only processing an air quality permit for it, not a water quality permit, she said.
Rail delivery structures, including conveyers, will be enclosed. A rail system is designed to accommodate up to 150 100-ton train cars. The feed rate to the gasifier will range from 2,000 to 2,300 st/d, or between 20 and 23 rail cars per day, depending on fuel blend. One silo will be dedicated to coal, another to petroleum coke. Each silo will have a capacity of about 35,000 st, giving the project about 30 days of fuel. The coal must be pulverized and combined with water for slurry pumped to the gasifier.
Melissa Gibbs, an IDEQ air shed specialist, noted that Idaho State University, the Marsh Valley School District, and Amalgamated Sugar all use coal for their operations. All air quality standards are being met in Power and Bannock counties, she said. It was noted that sulfur dioxide emissions from the J.R. Simplot Co.’s phosphate fertilizer plant near Pocatello are far greater than what the SIE plant would discharge. “No facility in the state compares to the SO2 levels as Simplot does,” Gibbs said. “Simplot is our largest industrial source.”
Two proposed emergency diesel generators at the SIE plant will be under stringent sulfur emission standards, she said, noting the best available control technology is required under the state permit.
SIE has purchased senior industrial water rights from FMC Corp., allowing it to pump about five million gallons of groundwater per day. FMC used the water to support operations at its Pocatello elemental phosphorus plant, which was shut down in December 2001. It is estimated SIE will need to buy up to 150 megawatts of electricity for the project.
John Burk, an SIE spokesman, said it’s estimated the new fertilizer plant would use two million gallons of water daily – or the same amount of water now used to irrigate the land where the plant will be constructed, according to the Aberdeen/Springfield Canal Co. Recognizing that water is an issue, SIE is also looking at using waste water from a nearby Lamb Weston potato processing plant, he said.
During three years of construction, SIE will employ 750 to 1,350 workers, primarily from Southeast Idaho, Burk said, noting his company has had discussions with Idaho State University about training programs. “We have a very strong commitment to hiring locally.”
Informational hearings pertaining to the SIE air quality permit to construct were also held in American Falls on Sept. 23 and Fort Hall on Sept. 24. The deadline for submitting written comments addressing air quality considerations regarding the proposed permit is Oct. 24. A hearing at which public comments may be submitted will be held Oct. 9 in American Falls.