Pilot "Clean Coal" Project Capturing 90% of CO2

A pilot carbon capture project in Pleasant Prairie, Wisconsin claims to be safely sequestering carbon emissions using a chilled ammonia process.

1 minute read

October 12, 2009, 7:00 AM PDT

By Tim Halbur


"We Energies, Alstom and The Electric Power Research Institute (EPRI) have used, since early 2008, a patented chilled ammonia process that is able to remove over 90 percent of the carbon dioxide from the plant's flue stream. The carbon is then "compressed, pipelined, and injected into two different saline reservoirs" that are about 8,000 feet beneath the plant. The test runs through the end of this year, and the operators have already begun scaling up the system to work on larger plants that produce tons more emissions."

Friday, October 9, 2009 in autobloggreen.com

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Use Code 25for25 at checkout for 25% off an annual plan!

Redlining map of Oakland and Berkeley.

Rethinking Redlining

For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

May 15, 2025 - Alan Mallach

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 14, 2025 - Diana Ionescu

Front of Walmart store with sign.

Walmart Announces Nationwide EV Charging Network

The company plans to install electric car chargers at most of its stores by 2030.

May 7, 2025 - Inc.

Aerial view of Albuquerque, New Mexico at sunset.

New State Study Suggests Homelessness Far Undercounted in New Mexico

An analysis of hospital visit records provided a more accurate count than the annual point-in-time count used by most agencies.

2 hours ago - Source NM

Close-up on white bike helmet lying on pavement with blurred red bike on its side in background abd black car visible behind it.

Michigan Bills Would Stiffen Penalties for Deadly Crashes

Proposed state legislation would close a ‘legal gap’ that lets drivers who kill get away with few repercussions.

3 hours ago - Wood TV 8

Muni bus on red painted bus-only lane in downtown San Francisco, California.

Report: Bus Ridership Back to 86 Percent of Pre-Covid Levels

Transit ridership around the country was up by 85 percent in all modes in 2024.

4 hours ago - Mass Transit