A HARSH EASTERLY WIND
How Evonik’s P84® polyimide fibers contribute to less CO2 emissions
Coal-based power generation is a time-honored technology. It will be replaced by renewable energy from wind, solar or biogas sources sooner or later, but as long as it maintains the energy supply as a bridge technology, its emissions must be kept as low as possible. The highly efficient filter media made of polyimide fibers P84® from Evonik keep exhaust gases released from coal-based power generation below emission limits.
Approximately 70 km before the famous shrine of Czestochowa, drivers on the Polish north-south highway connection from Gdansk to the Czech Republic see a scene on the right side of the road that is representative of the energy transformation currently underway. Near the small town of Belchatov, the smokestacks and cooling towers of the world’s largest brown coal-fired power plant line the horizon alongside large wind power plants that were set up on the excavation piles from coal extraction.
The Polish government, along with 194 other countries, signed the Paris Agreement on global emission reductions in December 2015. It will certainly take a few decades until the 5,420 MW power plant disappears from the horizon. Until then, the public sector will make efforts to curb the large carbon dioxide emissions.
FILTER MEDIA FOR EFFICIENT
FLUE GAS CLEANING
Filter materials for flue gas cleaning – for example those made of the hightemperature-resistant polymer by Evonik – reduce the emissions of coal-based power plants to a standardized level.
P84® polyimide fibers stand for their high filtration efficiency thanks to their multilobe design. They retain a much higher permeability throughout their lifecycle. As a result, they reduce the energy consumption significantly in comparison to other filter bags available on the market.
Filter media made of P84® polyimide fibers by Evonik therefore not only cut back on flue gas emissions, but also reduce energy costs.
Worldwide, more than 120 coal-based power plants are cleaned with P84® filter bags. Based on the energy savings resulting from the use of P84® filter media, these reference plants of Evonik save a total of approx. 30,000 metric tons of CO2 emissions per year.